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GE Multilin MM300, Instruction Manual

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GE Multilin MM300 Instruction Manual Download Page 127

CHAPTER 5: SETPOINTS

CONFIGURATION SETPOINTS

MM300 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

5–17

Pre-Contactor Time

Range: 0 to 60 seconds in steps of 1
Default: 0 seconds

This setpoint represents the time after a start command before the motor is started. 
Most starters do not use this delay for forced starts such as undervoltage restart 
immediate and external start. This setpoint is also used by the inverter starter and the 
soft start starter to set the amount of time between powering up an inverter or soft 
starter and sending the ramp-up command. An audible or other warning signal can be 
activated in this interval by connecting the signal to a contact output set to the 
precontactor function.

Transfer Time

Range: 0 to 125 seconds in steps of 1
Default: 1 second

The value specified by this setpoint is the time during which, the motor will be supplied 
with the reduced voltage through an autotransformer. When this time expires, contactor 
B will close and supply the full voltage to the motor.

Contactor Sequence

Range: 1S-2S, 2S-1S
Default: 1S-2S

Contactors 1S and 2S are closed in a sequence with a 40 millisecond delay. Contactor 
Sequence setpoint selects the order of closing.
An additional two setpoints have to be configured in order to make the element work 
properly: 

Contactor C Status

 and 

Contactor C

. Refer to section 

Inputs

 on page 5-20and 

Outputs

 on page 5-22. The selections made there also assigns two system messages 

Open Ctrl Cct

 and 

Welded Contactor

 to the status of contactor 2S.

NOTE

NOTE: 

It is recommended to check the specifications of the autotransformer used for this 
application and adjust the MM300 setpoint 

Starts/Hour Limit

 if necessary [

Path: Home > 

Setpoints > Control > Inhibits

].

NOTE

NOTE: 

Pre-contactor is omitted on forced starts (for example, UVR Immediate, External Start). 
Otherwise, type A forced starts operate in the same fashion as other type A starts, with the 
transfer to full voltage occurring when the transfer time expires. Type B forced starts are 
not supervised by this starter transfer timer - any external type B starting circuit must itself 
respect full voltage starting restrictions.

Summary of Contents for Multilin MM300

Page 1: ...D Instruction Manual MM300 Revision 1 7x Manual P N 1601 9023 AD Manual Order Code GEK 113022M MM300 Motor Management System Low Voltage Motor Protection and Control LISTED 52TL IND CONT EQ E83849 GE Grid Solutions ...

Page 2: ... of this manual is for informational use only and is subject to change without notice Part number 1601 9023 AD May 2016 Storage Store the unit indoors in a cool dry place If possible store in the original packaging Follow the storage temperature range outlined in the Specifications To avoid deterioration of electrolytic capacitors power up units that are stored in a de energized state once per yea...

Page 3: ...LATION Mechanical installation 2 1 Dimensions 2 1 Product identification 2 2 Mounting 2 3 Module withdrawal and insertion 2 6 Module and terminal identification 2 7 Electrical installation 2 8 Power supply module 2 9 CPU module 2 10 Ground current input 2 10 Thermistor connections 2 12 RS485 connections 2 13 Protection modules 2 14 Phase current inputs IO_A module 2 15 Phase voltage inputs IO_B mo...

Page 4: ...re 3 17 EnerVista MM300 Setup Software 3 17 Software requirements 3 17 Troubleshooting the USB driver 3 17 Installing the EnerVista MM300 Setup software 3 20 Upgrading the software 3 24 Connecting EnerVista MM300 Setup to the relay 3 25 Configuring serial communications 3 25 Using the Quick Connect feature 3 26 Connecting to the relay 3 26 Working with setpoints and setpoint files 3 27 Engaging a ...

Page 5: ... Autotransformer open transition starter 5 13 Autotransformer closed transition starter 5 15 Current and voltage transformers 5 18 Inputs 5 20 Outputs 5 22 Communications setpoints 5 24 System 5 26 Events 5 30 Waveforms 5 31 Datalog 5 31 Counters 5 32 Protection elements 5 34 Thermal protection 5 34 Unbalance biasing 5 34 Hot cold biasing 5 35 RTD biasing 5 36 Overload curve 5 37 Cooling rate 5 39...

Page 6: ... start control element 5 57 Starting duty inhibits 5 58 Process interlocks 5 60 Undervoltage autorestart 5 62 System security 5 65 6 DIAGNOSTICS Events 6 1 Digital counters 6 2 Phasors 6 3 Product information 6 4 Learned data 6 4 Waveform 6 5 Datalog 6 6 Commands 6 7 7 FLEXLOGIC FlexLogic overview 7 1 Introduction to FlexLogic 7 1 8 COMMUNICATION S Communications interfaces 8 1 A APPENDIX A Change...

Page 7: ...g Integrated pushbuttons and LED indicators reduce external components and wiring DIN rail and Panel Mounting Multiple simultaneous communication protocols allows simple integration into monitoring and control systems Optional basic control panel or graphical control panel interface provides local control and access to system information Automation FlexLogic for applications requiring more complex...

Page 8: ...ltages can cause shock burns or death Installation service personnel must be familiar with general device test practices electrical awareness and safety precautions must be followed Before performing visual inspections tests or periodic maintenance on this device or associated circuits isolate or disconnect all hazardous live circuits and sources of electric power Failure to shut equipment off pri...

Page 9: ... Auto Manual and Reset and 12 LED status indicators Graphical control panel includes a 3 5 inch 320 by 240 pixel backlit color LCD screen 14 pushbuttons and 10 LED indicators which provide access to actual values trip and alarm lists event records and setting configuration A USB port is provided for laptop computer connection The MM300 includes the following input output capabilities 2 to 18 conta...

Page 10: ...odule two cards per module maximum of two modules 38 Optional three phase voltage card Options Six inputs two form A outputs max 5 cards Three phase voltage card max 1 card Options Three RTDs 100 ohm Platinum max 2 cards Four form C contact outputs max 4 cards 853739A2 CDR Six inputs and two outputs standard Optional RTD card ANSI device Description 27X Undervoltage auxiliary input 27 Undervoltage...

Page 11: ...supply option Harsh Environment Coating is a standard feature on all MM300 units Base Expanded MM300 E A Interface MM300 MM300 Motor Management System Control panel X No control panel B Basic control panel no USB G Graphical control panel with USB Power supply H High 80 to 250 V DC Standard 60 to 300 V AC L Low 24 V DC 24 to 48 V DC Nominal Communications S Standard communications RS485 Modbus RTU...

Page 12: ...ice Protection specifications ACCELERATION TIMER Pickup Iav Ipu Dropout Iav Ipu or timer expired Time delay 0 5 to 250 0 seconds in steps of 0 1 Timing accuracy 500 ms or 1 5 of total time Elements trip and alarm AUXILIARY UNDERVOLTAGE Pickup level 60 to 90 of NCV Time delay 1 to 60 seconds in steps of 1 Timing accuracy 500 ms Elements trip and alarm CURRENT UNBALANCE Range 4 to 40 in steps of 1 A...

Page 13: ...ts trip and alarm PHASE UNDERVOLTAGE Pickup level 60 to 99 of rated in steps of 1 Time delay 1 to 60 seconds in steps of 1 s Timing accuracy 500 ms Elements trip and alarm RTD PROTECTION RTD types three wire 100 ohm Platinum Range 50 to 250 C in steps of 1 Hysteresis 2 C THERMAL MODEL Standard curve time multiplier 1 to 15 in steps of 1 Thermal overload pickup 1 01 to 1 25 in steps of 0 01 Motor f...

Page 14: ...ED indicators 12 LEDs Pushbuttons Start A Start B Stop Reset Auto Manual Cable BCP to Base Unit Shielded RJ45 Maximum length 6 1 83 m Metering and monitoring specifications EVENT RECORDER Capacity 256 events Data storage non volatile memory FREQUENCY METERING Range 40 00 to 70 00 Hz in steps of 0 01 Accuracy 0 05 Hz POWER METERING Real power range 2000 0 to 2000 0 kW in steps of 0 1 Apparent power...

Page 15: ...48 V DC Input impedence 1 23 kΩ Type opto isolated inputs External switch wet contact Maximum input voltage 60 V DC GROUND CURRENT INPUT 50 0 025 CT primary 0 5 to 15 0 A Nominal frequency 50 or 60 Hz Accuracy CBCT 0 1 A 0 5 to 3 99 A 0 2 A 4 0 A to 15 A Burden 8 6 mVA at 25 A PHASE CURRENT INPUTS INCLUDING RESIDUAL GROUND CURRENT Range 0 2 to 40 A 8 CT direct connection up to 5 A FLA Input type C...

Page 16: ... V AC 10 A AC resistive 240 V AC 10 A AC inductive PF 0 4 pilot duty 2 A DC resistive 30 V DC 10 A OUTPUT RELAY BREAK CAPACITY FORM C RELAY AC resistive 120 V AC 10 A normally open 5 A normally closed AC resistive 240 V AC 10 A normally open 8 A normally closed AC inductive PF 0 4 pilot duty 2 5 A DC resistive 30 V DC 10 A Power supply specifications POWER SUPPLY HIGH PSU Nominal 120 to 240 V AC 1...

Page 17: ...ave up to 1 5 Mbps Connector 5 pin terminal RS485 PORT Port opto isolated Baud rates up to 115 kbps Protocol Modbus RTU half duplex Maximum distance 1200 m Isolation 2 kV USB PORT GRAPHIC CONTROL PANEL ONLY Standard specification Compliant with both USB 2 0 and USB 1 1 Data transfer rate USB device emulating serial communications port at 115 kbps ...

Page 18: ... 25 Class A Sinusoidal Vibration IEC60255 21 1 Class 1 Shock Bump IEC60255 21 2 Class 1 Power magnetic Immunity IEC61000 4 8 Level 5 Pulse Magnetic Immunity IEC61000 4 9 Level 4 Voltage Dip Interruption IEC61000 4 11 0 40 70 dips 250 300cycle interrupts Damped Oscillatory IEC61000 4 12 2 5KV CM 1KV DM Harmonics Interharmonics IEC61000 4 13 Class 3 Voltage Ripple IEC61000 4 17 15 ripple Ingress Pro...

Page 19: ...ronmental specifications Item Description Country of origin Spain or Canada see label on the unit Date of manufacture See label on the MM300 unit Declaration of Conformity and or Certificate of Conformity Available on request ENVIRONMENTAL SPECIFICATIONS Ambient temperatures Storage shipping 40o C to 90o C Operating 20o C to 60o C 1 around Base Unit Humidity Operating up to 95 non condensing 55o C...

Page 20: ...1 14 MM300 MOTOR MANAGEMENT SYSTEM INSTRUCTION MANUAL SPECIFICATIONS CHAPTER 1 INTRODUCTION ...

Page 21: ...llation This section describes the mechanical installation of the MM300 system including dimensions for mounting and information on module withdrawal and insertion Dimensions The MM300 is packaged in a modular arrangement The dimensions of the MM300 are shown below Additional dimensions for mounting and panel cutouts are shown in the following sections ...

Page 22: ...tification label is located on the side panel of the MM300 This label indicates the product model serial number firmware revision and date of manufacture Figure 2 2 MM300 label 6 071 154 15 mm 4 059 103 09 mm 0 565 14 35 mm 5 228 132 78 mm 3 746 95 15 mm 5 550 140 97 mm 853724A1 CDR PANEL 2 425 61 6 mm 0 525 13 3 mm 853748A1 CDR Model Serial Number Firmware Mfg Date ...

Page 23: ...dimensions The DIN rail mounting is illustrated below The DIN rail conforms to EN 50022 CAUTION To avoid the potential for personal injury due to fire hazards ensure the unit is mounted in a safe location and or within an appropriate enclosure 4 40x3 8in SELF TAP PAN HD PHILIPS QTY 6 SUPPLIED GE PART NO 1402 0017 TIGHTENING TORQUE 8 lb in REAR OF PANEL CUTOUT AND MOUNTING HOLES INSTALL RELAY FROM ...

Page 24: ... Figure 2 5 DIN rail mounting Base and Expansion units 2 515 63 88mm 2 635 66 93mm 1 500 38 10mm 1 500 38 10mm 2 515 63 88mm 2 635 66 93mm Ø TypX8 130 3 30mm 4 40X3 8in SELF TAP PAN HD PHILIPS QTY 8 SUPPLIED GE PART 1402 0017 TIGHTENING TORQUE 7 lb in 853825A1 cdr SNAP IN THE DIN CLIPS QTY 4 FOR DIN RAIL MOUNTING 0 30 7 6 mm 1 38 35 1 mm DIN 3 RAIL 853726A1 CDR ...

Page 25: ...2 7 Expansion Unit screw mounting MEETS VIBRATION REQUIREMENT OF IEC 60255 SEC 21 1 21 2 21 3 2 250 57 15 mm 6 32 THREADED HOLE QTY 2 4 100 104 14 mm 853727A2 CDR 6 32X1 2FT FLATHEAD PHIL ZINC QTY 2 TIGHTENING TORQUE 10lb in C 6 32X1 2 FT FLAT HEAD PHIL ZINC QTY 2 TIGHTENING TORQUE 10 lb in 0 356 9 03 mm 0 672 17 06 mm 1 500 38 10 mm EXPANSION UNIT OUTLINE 2 285 58 04 mm 6 32 THREADED HOLE QTY 2 8...

Page 26: ... that control power has been removed from the MM300 2 Record the slot location of the module to ensure that the same or replacement module is inserted into the correct slot 3 Remove the two captive screws at the top and bottom of the module 4 Slide a flat blade screwdriver into the opening above the module marked by the two arrows on top of the MM300 case 5 Press down on the screwdriver and pivot ...

Page 27: ...ntifies the module slot position and the second character identifies the terminals within the module For example the first terminal in a module in slot C is identified as C1 NOTE NOTE Do not confuse the slot designation with the module ordering designation That is terminal C1 does not imply an IO_C module Rather it indicates the first terminal of whatever module is in slot C 853734A1 CDR Module De...

Page 28: ... outputs form A six programmable inputs single phase VT input 60 to 300 V AC Optional three phase voltage module RTD Module with three RTD inputs Three phase and residual ground CT inputs Optional TCP IP Ethernet Core balance ground CT input RS485 communications and thermistor input Profibus or DeviceNet Optional fieldbus protocols Switched power supply allows AC or DC control voltage 853740A2 CDR...

Page 29: ...250 V DC is required to power the MM300 For the low voltage version 20 V DC to 60 V DC is required to power the MM300 CAUTION Check the voltage rating of the unit before applying control power Control power outside of the operating range of the power supply will damage the MM300 14 13 12 11 10 9 8 7 6 5 4 3 2 1 PSU 60 300 VAC 84 250 VDC L gMULTILIN LISTED IND CONT EQ 52TL E200434 Technical Support...

Page 30: ...ground connection Figure 2 12 CBCT connection CAUTION The zero sequence connection is recommended Unequal saturation of CTs size and location of motor resistance of power system motor core saturation density and other factors may cause false readings in the residually connected ground fault circuit NOTE NOTE Only one ground input should be wired the other input should be unconnected The exact plac...

Page 31: ...POWER CABLE TO MOTOR TO STARTER GROUND BUS CABLE LUGS TO SOURCE TERMINATION TWISTED PAIR SPLIT BOLT CONNECTOR 853712A1 CDR CORE BALANCE CT SECONDARY CONNECTION TO MM300 IED IMPORTANT FOR SHIELDED CABLE THE GROUND WIRE MUST PASS THROUGH THE CT WINDOW 50 0 025 CORE BALANCE CT FOR GROUND SENSING STRESS CONE SHIELD GROUND CONNECTION BOTTOM OF MOTOR STARTER COMPARTMENT ...

Page 32: ... thermistor resistance the MM300 automatically determines the thermistor type as NTC or PTC Use thermistors with hot and cold resistance values in the range 100 to 30000 ohms If no thermistor is connected the Thermistor Alarm and Thermistor Trip settings must be set to Disabled POWER CABLE TO MOTOR 50 0 025 CORE BALANCE CT FOR GROUND CT SENSING TO STARTER GROUND BUS TWISTED PAIR 853713A1 CDR GROUN...

Page 33: ...to add more than 32 relays on a single channel Suitable cable should have a C CPU module MM300 Motor Management System To switchgear ground bus 853743A1 CDR R I SG RS485 Thermistor CBCT Control power L N Stator thermistor MOTOR SG Surge Ground Functional Ground SCADA PLC OR PERSONAL COMPUTER COM OPTOCOUPLER DATA MM300 IED SHIELD 853745A1 CDR UP TO 32 MM300 OR OTHER IEDs MAXIMUM CABLE LENGTH OF 120...

Page 34: ...round the shield at one point only as shown in the figure above to avoid ground loops Correct polarity is also essential The MM300 IEDs must be wired with all the positive terminals connected together and all the negative terminals connected together Each relay must be daisy chained to the next one Avoid star or stub connected configurations The last device at each end of the daisy chain should be...

Page 35: ...nce connection is shown in the diagram above and this is recommended Unequal saturation of CTs CT mismatch size and location of motor resistance of the power system motor core saturation density etc may cause false readings in the residually connected ground fault circuit Refer to section 2 2 2 1 for CBCT connection Note that if residual ground connection is selected the CT primary setpoint used b...

Page 36: ... two CT configuration the currents will sum vectorially at the common point of the two CTs The diagram illustrates the two possible configurations If one phase is reading high by a factor of 1 73 on a system that is known to be balanced simply reverse the polarity of the leads at one of the two phase CTs taking care that the CTs are still tied to ground at some point Polarity is important NOTE NOT...

Page 37: ...inputs There are no internal fuses or ground connections on the voltage inputs Polarity is critical for correct power measurement and voltage phase reversal operation Figure 2 20 Wye voltage connection Figure 2 21 Delta voltage connection A C B Contactor FUSES 100 ma typical E1 E2 E4 E3 Phase voltage inputs MM300 Motor Management System To switchgear ground bus 853735A2 CDR E5 E6 E7 VT1 VT2 VT3 Co...

Page 38: ...he same conduit as high current carrying wires The uncovered communications cable shield connected to the common terminal should not exceed 1 2 5 cm for proper EMC shielding of the communications cable Figure 2 22 RTD wiring Input output modules The following input and output modules are available for the MM300 Table 2 5 MM300 input and output modules Motor starter Motor Three wire shielded cable ...

Page 39: ...and forces the input state of the contact inputs to OFF as the interruption prevents sensing the actual states The two contact outputs can be programmed to follow any one of the digital signals developed by the MM300 such as alarms and status signals The exception is that the contactor A relay is fixed as the first contact output and contactor B relay is fixed as the second contact output where us...

Page 40: ... the MM300 such as alarms and status signals Figure 2 24 Typical wiring for type IO_D contact output module NOTE NOTE Substitute the slot position of the input output module E F G or H wherever the tilde symbol appears in the diagrams above Control power 1 2 4 3 853742A1 CDR 5 6 MM300 Motor Management System 8 9 11 10 12 13 7 14 Four form C contact outputs CONTACT OUTPUT 1 NOT USED N CONTACT OUTPU...

Page 41: ...se angle reference When the IO_E module located in slot C senses a low auxiliary voltage inhibit and the Undervoltage restart function is enabled the states of the contact inputs are forced to OFF NOTE NOTE The auxiliary voltage connection is required on all IO_E modules both in slot C and in expansion slots The two contact outputs can be programmed to follow any one of the digital signals develop...

Page 42: ... with the I O Module type E installed see below is rated for 550 V AC for 1 second or 500 V AC for 1 minute per UL 508 isolation between relay contacts CT inputs VT inputs and the surge ground terminal SG Some precautions are required to prevent damage to the MM300 during these tests Do not HI POT test HI POT test at 1 9 kV AC for 1 second or 1 6 kV AC for 1 minute per UL 508 LINE FAULT ON POWER F...

Page 43: ...recautions Low voltage inputs less than 30 volts RTDs and RS485 communication ports are not to be tested for dielectric strength under any circumstance see above NOTE NOTE Substitute the slot position of the Input Output module E F G or H wherever the tilde symbol appears in the diagram above Do not HI POT test HI POT test at 1 32 kV AC for 1 second or 1 12 kV AC for 1 minute per UL 508 LINE FAULT...

Page 44: ...ator Thermistor M Field Stop Field Start Reset Core Balance CT Contactor MM300 Low Voltage Motor Manager D2 D1 D8 D7 D6 D5 D4 D3 CT Module PSU C1 C2 C3 C4 C5 C6 C7 C8 I O Module Type C C9 C10 C11 C12 C13 C14 IC IB IA Aux VT Com CPU R I Surge G d Core Balance Thermistor RS485 CT2 CT3 G F CT1 RS485 Serial Link Ground at one point N L IN 1 IN 2 IN 3 IN 4 IN 5 IN 6 Com Relay 1 Relay 2 L N GE Multilin ...

Page 45: ...or the set pre contactor time When the pre contactor timer times out relay1 picks up and seals in picking up contactor M which starts the motor When a stop control is received relay1 drops out contactor M drops out and the motor stops The pre contactor is omitted on forced starts for example UVR Immediate External Start NOTE NOTE Connect AUX VT to the Control Supply for correct operation of the UV...

Page 46: ...p Fwd Limit Core Balance CT Dual Contactor R R R F F Inter lock R Rev Limit IA IB IC RS485 Serial Link Ground at one point MM300 Low Voltage Motor Manager D2 D1 D8 D7 D6 D5 D4 D3 CT Module CT2 CT3 G F CT1 C1 C2 C3 C4 C5 C6 C7 C8 I O Module Type C C9 C10 C11 C12 C13 C14 Aux VT IN 1 IN 2 IN 3 IN 4 IN 5 IN 6 Com Relay 1 Relay 2 L N Com CPU R I Surge G d Core Balance Thermistor RS485 PSU N L 853705A3 ...

Page 47: ... picking up contactor R which starts the motor in the reverse direction When a stop control is received relays 1 and 2 drop out contactor F and R drop out and the motor stops The starter logic is fully symmetrical between forward and reverse When a contact input has its function set to forward limit and that contact closes relay1 will drop out stopping any forward rotation When a contact input has...

Page 48: ... H H L L Inter lock H MOTOR H H IA IB IC MM300 Low Voltage Motor Manager D2 D1 D8 D7 D6 D5 D4 D3 CT Module PSU C1 C2 C3 C4 C5 C6 C7 C8 I O Module Type C C9 C10 C11 C12 C13 C14 Aux VT Com CPU G d R I Surge G d Core Balance Thermistor RS485 CT2 CT3 G F CT1 RS485 Serial Link Ground at one point G N L IN 1 IN 2 IN 3 IN 4 IN 5 IN 6 Com Relay 1 Relay 2 L N Field Start Low Field Stop Field Start High 853...

Page 49: ... contactor H Off status is received the starter waits for the set transfer time to allow the motor to slow When the transfer time timer times out the relay1 picks up and seals in picking up contactor L which starts the motor in low speed When a stop control is received the relays 1 and 2 drop out contactors L and H drop out and the motor stops If the HIGH SPEED START BLOCK setting is Enabled this ...

Page 50: ...e CT Dual Contactor 2M 1S Inter lock 2M 1M 1M 2M 2M 2M 1S 1S 1S 1M 1S 2M 1S RS485 Serial Link Ground at one point MM300 Low Voltage Motor Manager D2 D1 D8 D7 D6 D5 D4 D3 CT Module CT2 CT3 G F CT1 C1 C2 C3 C4 C5 C6 C7 C8 I O Module Type C C9 C10 C11 C12 C13 C14 Aux VT IN 1 IN 2 IN 3 IN 4 IN 5 IN 6 Com Relay 1 Relay 2 L N Com CPU R I Surge G d Core Balance Thermistor RS485 PSU N L 853707A3 cdr Field...

Page 51: ...relay2 picks up and seals in picking up the 2M contactor which connects the motor in delta configuration The 2M contactor in turn picks up the 1M contactor which connects the motor to the supply The motor is now running at full voltage When a stop control is received relays 1 and 2 drop out contactor 1S and 2M drop out contactor 1M drops out and the motor stops Pre contactor is omitted on forced s...

Page 52: ...alance CT Contactor INVERTER MR Motor Running Output Ramp Up Input MR Field Stop IA IB IC RS485 Serial Link Ground at one point MM300 Low Voltage Motor Manager D2 D1 D8 D7 D6 D5 D4 D3 CT Module CT2 CT3 G F CT1 C1 C2 C3 C4 C5 C6 C7 C8 I O Module Type C C9 C10 C11 C12 C13 C14 Aux VT IN 1 IN 2 IN 3 IN 4 IN 5 IN 6 Com Relay 1 Relay 2 L N Com CPU R I Surge G d Core Balance Thermistor RS485 PSU N L 2M 2...

Page 53: ...ut and the inverter ramps down if it has not done so already An Inverter alarm is issued but relay1 remains closed so contactor 1M stays picked up and the supply to the inverter is maintained This is done so that the inverter has power to retain its event records for subsequent diagnosis of the problem Relay1 is opened removing power to the inverter when a stop control is received and the alarm is...

Page 54: ... 2 38 Soft starter typical wiring IO_C A B C 1M 1M 1M MOTOR 1M Stator Thermistor 1M Field Start Reset Core Balance CT Contactor SOFT STARTER UTS Up To Speed Output Stop UTS Field Stop BP BP BP Com Run 2M 2M BP UTS 2M IA IB IC RS485 Serial Link Ground at one point MM300 Low Voltage Motor Manager D2 D1 D8 D7 D6 D5 D4 D3 CT Module CT2 CT3 G F CT1 C1 C2 C3 C4 C5 C6 C7 C8 I O Module Type C C9 C10 C11 C...

Page 55: ...e soft starter to ramp down When the ramp down time timer has expired relay1 is opened M1 drops out cutting power to the soft starter and motor Forced starts for example External Start operate in the same fashion as other starts relay2 closes after a 1 second delay If up to speed feedback is not received from auxiliary relay UTS within the RAMP UP TIME setting during a start a Drive Start Failed a...

Page 56: ...Ground at one point MM300 Low Voltage Motor Manager D2 D1 D8 D7 D6 D5 D4 D3 CT Module CT2 CT3 G F CT1 C1 C2 C3 C4 C5 C6 C7 C8 I O M odule Type C C9 C10 C11 C12 C13 C14 IN 1 IN 2 IN 3 IN 4 IN 5 IN 6 Com Relay 1 R el a y 2 L N Com CPU R I Surg e G d Core Balan ce Ther mi stor RS485 PSU N L GEMultilin G n G d n 2S 2S 2S 1S 1S AUX VT E 1 E 2 E 3 Relay 1 E4 E 5 E6 Relay 2 E7 E8 E9 Relay 3 E10 E 11 E12 ...

Page 57: ...this starter 1S 2S and 2S 1S For more details please refer to chapter Autotransformer open transition starter in section Configuration setpoints Motor setpoins section of the manual NOTE NOTE Connect AUX VT to the Control Supply for correct operation of the UV Restart feature and correct input readings R Field Stop 1S 1S Interloc k R MM300 Low Voltage Motor Manager C1 C2 C3 C4 C5 C6 C7 C8 I O Modu...

Page 58: ...point MM300 Low Voltage Motor Manager D2 D1 D8 D7 D6 D5 D4 D3 CT Module CT2 CT3 G F CT1 C1 C2 C3 C4 C5 C6 C7 C8 I O M odule Type C C9 C10 C11 C12 C13 C14 IN 1 IN 2 IN 3 IN 4 IN 5 IN 6 Com Relay 1 R el a y 2 L N Com CPU R I Surg e G d Core Balan ce Ther mi stor RS485 PSU N L GEMultilin G n G d n 2S 2S 2S 1S 1S AUX VT E 1 E 2 E 3 Relay 1 E4 E 5 E6 Relay 2 E7 E8 E9 Relay 3 E10 E 11 E12 Relay 4 E 13 E...

Page 59: ...two options of this starter 1S 2S and 2S 1S For more details please refer to chapter Autotransformer open transition starter in section Configuration setpoints Motor setpoints section of the manual NOTE NOTE Connect AUX VT to the Control Supply for correct operation of the UV Restart feature and correct input readings R Field Stop 1S 1S Interloc k R MM300 Low Voltage Motor Manager C1 C2 C3 C4 C5 C...

Page 60: ...ion for any damage corrosion dust or loose wires 4 Event recorder file download with further events analysis Out of service maintenance 1 Check wiring connections for firmness 2 Analog values currents voltages RTDs analog inputs injection test and metering accuracy verification Calibrated test equipment is required 3 Protection elements setting verification analog values injection or visual verifi...

Page 61: ...fer to the individual chapters Graphical control panel The MM300 graphical control panel provides the operator with rapid access to relevant information and controls using intuitive sequences It also provides all available information and setting control again with intuitive sequences Introduction to the graphical control panel The central feature of the graphical control panel is a 3 5 inch 320 b...

Page 62: ...The present time is displayed on the right top side If the test switch is on the time is replaced with the text TEST MODE in red The soft key labels are indicated on the bottom line The soft keys are used for navigation performing functions and for acknowledgement Navigation soft keys can be used to traverse across and down the hierarchy of pages Functional soft keys can be used to perform page sp...

Page 63: ...tains a status and process values summary Double pressing the HOME key recalls the default display Like a screen saver the default display appears after a period of inactivity and displays user selected information A typical default display is shown below indicating a running motor in the forward direction Figure 3 3 Typical default display actual size The UP and DOWN keys function in different wa...

Page 64: ...Figure 3 4 Passcode entry dialog box The ESC key functions in different ways depending on its context If a pop up dialog box is displayed the ESC key closes it If an edit sequence is in progress the ESC key cancels the edit If a field is selected the ESC key de selects it In all other instances the ESC key moves back one page in the menu structure A sustained press on the ESC key clears the securi...

Page 65: ...o display either red orange or green as required by local operating conventions The following LEDs are available for the MM300 Running LED Indicates that the motor is running It will be on whenever the contactor A or B relays are closed and the contactor status inputs acknowledge the correct state Current flow does not affect the indicator Stopped LED Indicates that the motor is stopped based on b...

Page 66: ...R Amps Power Volts Sensor Values Inputs Outputs System Message Flex Summary Status Reset Protection Control Security Config Setpoints CT VT Inputs Outputs Motor Comms System Events Counters Thermal Mech Elec Sensor Starter Inhibits Interlock UV Restart Alarms Trips Control Counters Phasors Info Events Learned Diag Clear Clear Manual Auto Control Main menu Level 1 Level 2 Level 3 Summary V Inputs V...

Page 67: ...e tripped LED flasher setpoint is set to ON the softkey will flash red if there is a trip or lockout Pressing any of the soft keys displays the first sub page in the hierarchy Pressing the ESC key within any of these sub pages returns directly to the home page Default display The default display is automatically shown when no control key has been pressed for five minutes It can also be recalled at...

Page 68: ...o date information on the current status of the MM300 Status pages are divided into five sections Message displays all locked out conditions plus conditions such as alarms internal faults control status etc Inputs displays the present state of assigned contact inputs Outputs displays the present state of assigned contact outputs System displays the present state of the communications interface Fle...

Page 69: ...its These include Process Interlock Stop and Field Stop Trips Alarms These trigger depending on the protection setpoints A typical example would be Overload Trip Information Messages Information pages are split into two groups With navigation shown above as an Enter symbol on the right side of the display Without navigation When a line showing a message with navigation is highlighted pressing Ente...

Page 70: ...hat interlock function will not be displayed If all ten process interlock functions are disabled the MM300 will display only 10 successive Disabled list items If one of the interlock functions were then enabled then room is made on the display for the six setpoints which are now functional The setpoint pages are in a common format of twelve rows and two columns displaying setpoint name value and u...

Page 71: ...MOTOR MANAGEMENT SYSTEM INSTRUCTION MANUAL 3 11 Figure 3 14 Typical phasors page Figure 3 15 Typical events page Pressing Enter on the highlighted line line 9 above will take you directly into the detailed event analysis screen Figure 3 16 Typical event diagnosis page ...

Page 72: ...setpoint editor popup windows Help popup windows are initiated by pressing the HELP key Refer to the Keypad section for more information about help popup windows Invalid operation popups explain the problem and provide direction on how to rectify it This may also include invalid features or uninstalled options for example accessing the undervoltage restart page when undervoltage restart option is ...

Page 73: ... the UP and DOWN keys to select the relevant setting field 3 Press the ENTER key A popup window will appear with a list of available values 4 Use the UP and DOWN keys to select from the available values If there are more than seven available values then an arrow indicator will appear on the lower right of the popup to indicate additional selections 5 Press the ENTER key when complete to exit the e...

Page 74: ... the navigational soft keys to highlight the first digit of the new setpoint value 5 Press the Select soft key to select the highlighted digit 6 Use the navigational soft keys to highlight the next digit then press Select 7 When the new value has been fully entered press the Enter key to store the value and close the window Alphanumeric setpoints Alphanumeric setpoints accept any alphanumeric valu...

Page 75: ...ute second and each octet of the IP address are entered as separate fields Input verification is performed for all fields of the setpoint when the ENTER key is pressed As these are standard formats the minimum maximum and step value displays are removed For date and time setpoints a format string of DD MM YYYY or HH MM SS is included as a part of the setpoint label for reference when entering a ne...

Page 76: ...s the basic start and stop panel functionality as well as a series of LED indications The basic control panel is illustrated below Figure 3 24 Basic control panel The following LEDs are provided Two USER LEDs USER 1 and USER 2 the user can select parameters from a list 50 80 100 showing motor load RUNNING STOPPED TRIPPED and ALARM COMMS OK AUTO and MANUAL 853750A1 CDR ...

Page 77: ...ade the relay firmware and write and edit setting files The EnerVista MM300 Setup software can run without a MM300 connected to the computer In this case settings may be saved to a file for future use If an MM300 is connected to a PC and communications are enabled the MM300 can be programmed from the setting screens In addition measured values status and trip messages can be displayed with the act...

Page 78: ...e Device setup Window It will automatically reappear on the USB Device list as MM300 USB Serial Emulation COM as shown in the image below 4 If the USB Device is not recognized automatically in the Setup Software repeat the same procedure 2 or 3 times until the PC Program recognizes the USB device and MM300 USB Serial Emulation COM reappears in dropdown of USB Device list ...

Page 79: ...s Device Manager under tree branch modems from the Installation folder To uninstall it right click on MM300 USB Serial Emulation and select Uninstall 6 After the uninstall remove the USB cable from the Device s native USB port wait for at least 10 Seconds and reconnect it 7 Now the Found New Hardware Wizard will open select No not this time and press the Next button ...

Page 80: ...alled on Windows Vista Operating System and communication to the Device via the Native USB port is not supported Installing the EnerVista MM300 Setup software After ensuring the minimum requirements indicated earlier use the following procedure to install the EnerVista MM300 Setup software from the enclosed GE EnerVista CD 1 Insert the GE EnerVista CD into your CD ROM drive 2 Click the Install Now...

Page 81: ...nchpad will obtain the latest installation software from the Web or CD and automatically start the installation process A status window with a progress bar will be shown during the downloading process 7 Select the complete path including the new directory name where the EnerVista MM300 Setup software will be installed 8 Click on Next to begin the installation The files will be installed in the dir...

Page 82: ...to end the installation The MM300 device will be added to the list of installed IEDs in the EnerVista Launchpad window as shown below If you are going to communicate from your computer to the MM300 Relay using the USB port 10 Plug the USB cable into the USB port on the MM300 Relay then into the USB port on your computer The following screen will appear ...

Page 83: ...MM300 MOTOR MANAGEMENT SYSTEM INSTRUCTION MANUAL 3 23 11 Select Install Automatically 12 Select No not this time The above Hardware Installation warning screen see 8 above will reappear Press the Continue Anyway button 13 In EnerVista Device Setup ...

Page 84: ...t the appropriate USB device Upgrading the software The latest EnerVista software and firmware can be downloaded from https www gegridsolutions com app ViewFiles aspx prod mm300 type 7 After upgrading check the version number under Help About If the new version does not display try uninstalling the software and reinstalling the new versions ...

Page 85: ...w site 3 Enter the desired site name in the Site Name field If desired a short description of the site can also be entered In this example we will use New Site 1 as the site name 4 The new site will appear in the upper left list in the EnerVista MM300 MM200 Setup window 5 Click the Add Device button to define the new device 6 Enter the desired name in the Device Name field and a description option...

Page 86: ... will appear in the Site List window The MM300 Site Device has now been configured via the Quick Connect feature for either USB or Serial communications Proceed to Connecting to the Relay below to begin communications Connecting to the relay Now that the communications parameters have been properly configured the user can easily communicate with the relay 1 Expand the Site list by double clicking ...

Page 87: ...ill Working with setpoints and setpoint files Engaging a device The EnerVista MM300 MM200 Setup software may be used in on line mode relay connected to directly communicate with a relay Communicating relays are organized and grouped by communication interfaces and into sites Sites may contain any number of relays selected from the product series Entering setpoints The System Setup page will be use...

Page 88: ...p of the keypad Click to exit from the keypad and keep the new value Click on X to exit from the keypad and retain the old value 5 For setpoints requiring non numerical pre set values e g CT Primary below clicking anywhere within the setpoint value box displays a drop down selection menu arrow Select the desired value from this list 6 For setpoints requiring an alphanumeric text string e g relay n...

Page 89: ...ntains data pertaining to the following types of relay settings Configure Protection Control Security Settings Modbus User Map FlexLogic Factory default values are supplied and can be restored after any changes The EnerVista MM300 MM200 Setup displays relay setpoints with the same hierarchy as the front panel display Downloading and saving setpoints files Setpoints must be saved to a file on the l...

Page 90: ...rge group of setpoint files Use the following procedure to add an existing file to the list 1 In the files pane right click on Files and select the Add Existing Setting File item as shown 2 The Open dialog box will appear prompting the user to select a previously saved setpoint file As for any other MS Windows application browse for the file to be added then click Open The new file and complete pa...

Page 91: ...firmware version to ensure that setpoints not available in a particular version are not downloaded into the relay 2 Select the Firmware Version and Order Code options for the new setpoints file 3 For future reference enter some useful information in the Description box to facilitate the identification of the device and the purpose of the file 4 To select a file name and path for the new file click...

Page 92: ...ection Adding Setpoints Files to the Environment 4 In the File pane right click on the saved setpoint file 5 Note the File Version of the setpoint file If this version is different from the Firmware Revision noted in step 2 select a New File Version that matches the Firmware Revision from the pull down menu 6 For example if the firmware revision is 1 5x and the current setpoint file revision is 1 ...

Page 93: ...he main window select the Offline Export Settings File menu item 3 The Print Export Options dialog box will appear Select Settings in the upper section and select either Include All Features for a complete list or Include Only Enabled Features for a list of only those features which are currently used in the filtering section and click OK 4 The process for Offline Print Preview Settings File is id...

Page 94: ... setpoints file from the File pane of the software main window 2 Select the Offline Edit Settings File Properties menu item and verify that the corresponding file is fully compatible with the hardware and firmware version of the target relay If the versions are not identical see Upgrading Setpoint Files to a New Revision above for details on changing the setpoints file version 3 Right click on the...

Page 95: ...onnect the RJ45 port on the relay labelled RS485 to Control Panel to the RS232 port COM1 on the local PC using an RS232 female to RJ45 male custom cable p n 0804 0180 If there is no RS232 port on your PC 1 1 If you are using the MM300 Graphical Control Panel GCP or Hand Held Device HHD connect the USB port on the front of the MM300 relay to the USB port on the local PC using a USB 2 0 type A to mi...

Page 96: ...rdware tab Then click Device Manager Once your physical connections are complete and you have determined which COM PORT you will be using start your MM300 MM200 EnerVista Setup Program 3 Save the setpoints to a file as shown in Downloading and Saving Setpoints Files USB Port USB Port PC RS 485 TO CONTROL PANEL PSU USB to Serial converter cable RS232 to RJ45 cable COM10 USB Port RS232 Port COM1 PC ...

Page 97: ...erVista MM300 MM200 Setup software will notify the user when the MM300 has finished loading the file Carefully read any displayed messages and click OK to return the main screen Cycling power to the relay is recommended after a firmware upgrade After successfully updating the MM300 firmware the relay will not be operational and will require setpoint programming To communicate with the relay the co...

Page 98: ...voltages Vab Vbc and Vca if delta connected Digital data for output relays and contact input states 1 With EnerVista MM300 Setup running and communications established select the Diagnostics Waveform menu item to open the Waveform Capture setup window 2 Click on Trigger Waveform to trigger a waveform capture Waveform file numbering starts with the number zero in the MM300 so that the maximum trigg...

Page 99: ...de additional information on the cause and the system conditions at the time and date of the event 8 From the window main menu bar press the Preference button to open the COMTRADE Setup page in order to change the graph attributes 9 The following window will appear CURSOR LINES To move lines locate the mouse pointer over the cursor line then click and drag the cursor to the new location DELTA Indi...

Page 100: ...TEM INSTRUCTION MANUAL SOFTWARE CHAPTER 3 INTERFACING WITH THE MM300 To change graph attributes for the Analog Channels select it from the menu tree To change the graph attributes for the Digital Channels select it from the menu tree ...

Page 101: ...s and to close the window The Waveform Capture window will reappear with the selected graph attributes available for use 11 To view only data or data and a vector graph for the quantities contained in the waveform capture press the Osc Data Phasor Data or Harmonics Data button For each button pressed the corresponding window is displayed as follows 12 Use the graph attribute utility described in s...

Page 102: ...talog 3 Click on the Save to File button to save the datalog to the local PC A new window will appear requesting for file name and path 4 One file is saved as a COMTRADE file with the extension CFG The other file is a DAT file required by the COMTRADE file for proper display of data 5 To view a previously saved COMTRADE file click the Open button and select the corresponding COMTRADE file 6 To vie...

Page 103: ...STRUCTION MANUAL 3 43 7 The method of customizing the datalog view is the same as the Waveform Capture described above 8 The datalog can be set to capture another buffer by clicking on Run when Continuous mode is enabled or by clicking on Release when Continuous mode is disabled ...

Page 104: ...3 44 MM300 MOTOR MANAGEMENT SYSTEM INSTRUCTION MANUAL SOFTWARE CHAPTER 3 INTERFACING WITH THE MM300 ...

Page 105: ...llowing methods Through the graphical control panel using the keys and display With the EnerVista MM300 Setup software supplied with the relay Through the RS485 or Ethernet ports and a PLC SCADA system running user written software Actual value messages are organized into logical groups or pages for easy reference Pressing the Values soft key displays the actual values summary window A summary of ...

Page 106: ...ng Select the Values Amps page to display the metered current for all three phases and ground Figure 4 2 Current metering page Voltage metering Select the Values Volts page to display the metered voltage for all three phases and auxiliary The system frequency is also displayed Figure 4 3 Voltage metering page ...

Page 107: ...igure illustrates the power measurement conventions used to describe power direction Figure 4 4 Power measurement conventions Select the Values Power page to display the power and energy metering values Figure 4 5 Power metering display NOTE NOTE An induction motor by convention consumes watts and vars watts and vars ...

Page 108: ...etered temperature sensor values The values for each RTD and thermistor if installed are displayed Note that the MM300 also records the maximum temperature measured for each RTD since the last clear Figure 4 6 Temperature metering page A loss of control power or sending the Clear RTD Maximum command from EnerVista will clear the RTD maximum values ...

Page 109: ...t msg Msg can have an associated countdown timer The symbol shows that a link is available Use to highlight the line then press Enter to zoom to the setpoint page that contains this setpoint Select the Status Msg page to display a list of status messages Trips alarms and control messages are displayed as status messages The up and down keys can be used to scroll through large lists of status messa...

Page 110: ...STRUCTION MANUAL STATUS CHAPTER 4 ACTUAL VALUES System Page Shows the communication status of all configuration interfaces serial Ethernet DeviceNet and Profibus Flex Page Shows the status of Flex engine and the number of 512 lines in use ...

Page 111: ...inputs outputs communications CTs and VTs Protection page Information about the protection features Control page Information about the process control features Security page Information about the security and password features Press the Setpoint soft key to scroll through the setpoints pages When pressed for the first time the following screen is displayed Figure 5 1 Setpoints home page The soft k...

Page 112: ...hen control power to the unit is removed Protection parameters are based on the entered data This data must be complete and accurate for the given system for reliable protection and operation of the motor Setting text abbreviations The following abbreviations are used in the setpoints pages A Amps amperes AUX auxiliary CBCT core balance current transformer COM Comms communications CT current trans...

Page 113: ...guration System setpoints related to MM300 system configuration such as the faceplate LEDs Events setpoints related to the event recorder Counters setpoints related to the digital counters Motor setpoints The MM300 starter function is responsible for executing the motor startup sequence including the pre contactor start warning The MM300 provides eight pre defined starters Full voltage non reversi...

Page 114: ...the value is set to None The following figure illustrates typical starter timing beginning from the stopped state for all starter types Motor FLA Mandatory Setpoint Range 0 5 to 1000 0 amps in steps of 0 1 Default OFF This setpoint must be specified for motor protection The value may be taken from the motor nameplate data sheets Motor Nameplate Voltage Mandatory Setpoint Range 100 to 690 volts in ...

Page 115: ...elay Pre contactor Starting Running Motor Current Full Voltage Reversing Contactor B Relay Contactor A Relay Pre contactor Starting Running Motor Current Two Speed Starter Contactor B Relay Contactor A Relay Pre contactor Starting Running Motor Current Wye Delta Starter Contactor B Relay Contactor A Relay Pre contactor Starting Running Motor Current Inverter Starter and Soft Starter Stopping P T P...

Page 116: ...tactor Starting Running Motor current P T Contactor C relay 20 ms 20ms Autotransformer Open Transition 1S 2S Contactor B relay Contactor A relay Pre contactor Starting Running Motor current P T Contactor C relay 20 ms 20ms Autotransformer Open Transition 2S 1S Contactor B relay Contactor A relay Pre contactor Starting Running Motor current P T Contactor C relay 20 ms 40ms 40ms Autotransformer Clos...

Page 117: ...g starter The full voltage reversing starter type is a full voltage or across the line reversing starter When a start A forward control is received the pre contactor relay if any is picked up for the set Pre Contactor Time When the pre contactor timer times out the contactor A relay picks up and seals in starting the motor in the forward direction When a start B reverse control is received the A c...

Page 118: ...contactor timer times out the contactor A relay picks up and seals in starting the motor in low speed When a start B high speed control is received the A contactor is dropped out When contactor A status Off is received the contactor B relay picks up and seals in starting the motor in high speed Should a start A low speed control be received when the high speed contactor B is picked up contactor B ...

Page 119: ...tarter Wye delta open transition starter The wye delta open transition starter is a reduced voltage starter When a start A control is received the pre contactor relay if any is picked up for the set Pre Contactor Time When the pre contactor timer times out the contactor A relay picks up and seals in picking up the 1S contactor which connects the motor in wye configuration The 1S contactor in turn ...

Page 120: ...ft starter and sending the ramp up command An audible or other warning signal can be activated in this interval by connecting the signal to a contact output set to the pre contactor function Transfer Time Range 0 to 125 seconds in steps of 1 Default 1 second If the value specified by this setpoint has expired the transition from wye contactor A to delta contactor B will occur Change Over Current R...

Page 121: ...ve Start Failed alarm is latched until reset The Inverter Fail alarm is also cleared by a stop control The B Open Contactor Control Circuit and B Welded Contactor alarms implemented in the start stop control element are defeated when the inverter starter is selected If the inverter does not provide an up to speed feedback signal contactor B relay contact or an auxiliary contact of the B contactor ...

Page 122: ...ing power to the soft starter and motor Forced starts for example external start operate in the same fashion as other starts with the B contactor not calling for the soft starter to ramp until the pre contactor timer times out If up to speed feedback is not received from the soft starter via the contactor B status within the Ramp Up Time setpoint during a start a Drive Start Failed alarm is genera...

Page 123: ...totransformer open transition starter It also shows connections between contactor inputs outputs and internal flags operands driving these outputs Autotransformer open transition starter is a reduced voltage starter The expansion I O module type C D or E must be properly installed when the Autotransformer open transition starter is used Three motor contactors R 1S and 2S each controlled by a separ...

Page 124: ...former open transition starter 2S 1S Pre Contactor Time Range 0 to 60 seconds in steps of 1 Default 0 seconds This setpoint represents the time after a start command before the motor is started Most starters do not use this delay for forced starts such as undervoltage restart immediate and external start This setpoint is also used by the inverter starter and the soft start starter to set the amoun...

Page 125: ...re not supervised by this starter transfer timer any external type B starting circuit must itself respect full voltage starting restrictions Autotransformer closed transition starter The following table shows the I O names used in Autotransformer closed transition starter It also shows connections between contactor inputs outputs and internal flags operands driving these outputs Autotransformer cl...

Page 126: ...til contactor R closed status is received 10 Open contactor 2S Stop trip sequence 1 Stop command received by the MM300 or a trip occurs 2 Open Contactor R 3 Open Contactors 1S and 2S if they are not already opened The following figures illustrate typical starter timing beginning from the stopped state Figure 5 13 Typical starter timing for autotransformer closed transition starter 1S 2S Figure 5 1...

Page 127: ...e and supply the full voltage to the motor Contactor Sequence Range 1S 2S 2S 1S Default 1S 2S Contactors 1S and 2S are closed in a sequence with a 40 millisecond delay Contactor Sequence setpoint selects the order of closing An additional two setpoints have to be configured in order to make the element work properly Contactor C Status and Contactor C Refer to section Inputs on page 5 20and Outputs...

Page 128: ...Primary Mandatory Setpoint Range 5 to 1000 amps in steps of 1 Default 5 amps This setpoint specifies the phase CT primary current It should never be less than the full load current and preferably no greater than twice than the full load current Standard cut off default is 20 0 2pu of CT primary At CT primary less then 0 2pu primary CT turns are required and an appropriate current cut off setpoint ...

Page 129: ...cut off default is 20 0 2pu of CT primary At CT primary less then 0 2pu primary CT turns are required and an appropriate current cut off setpoint For example using a 30 1 CT with 6A FLA gives 0 2A CT secondary FLA the cut off must be lowered to 0 1A and a minimum of 3 primary turns are recommended Three Phase Voltage Connection Range Wye Delta Default Wye The method in which the IO_B voltage input...

Page 130: ... value represents an open contact that disables communications control Used by the auto manual control element Contactor A Status This value represents the normally open auxiliary contact of contactor A Used by the starters the stop start control element and the system trouble function Automatically assigned to the first input when a starter type is selected Not otherwise user programmable Contact...

Page 131: ...s mechanical jam ground fault and thermal overload NA This value indicates the contact Input has no assigned function though it may still be used by the custom I O FlexLogic if that starter type is selected MCC Permissive This value represents an open contact that disables MCC control Used by the auto manual control element Remote Reset This value represents a contact input used to resets non lock...

Page 132: ...ed it will be displayed in red Pre defined functions are also displayed in red For contact outputs the Function setpoint determines which internal signal turns the output on and off A list of the setpoints options with descriptions is shown below For more information on a particular option see the appropriate section in this manual Contactor A Relay This value represents an output contact that ene...

Page 133: ... the Control setpoints Figure 5 19 Output configuration setpoints control page Drive Available Range N A C2 D1 D4 order code dependent Default N A This setting assigns the Drive Available element to the desired contact output Drive Available Manual Range N A C2 D1 D4 order code dependent Default N A This setting assigns the Drive Available Manual element to the desired contact output Drive Availab...

Page 134: ...f Autotransformer Starter Closed Transition and Autotransformer Starter Opened Transition elements to the contact output wired to contactor 2S The selection must match the actual wiring NOTE NOTE Stop A and Stop B are not included in the evaluation of the Any Stop element because they are selective direction speed Flexlogic can be used to OR the condition for waveform capture triggering if desired...

Page 135: ...f 1 Default 63 This setpoint specifies the dedicated MAC ID as per the DeviceNet design DeviceNet Baud Rate Range 125 250 or 500 kbps Default 125 kbps This setpoint selects the DeviceNet baud rate Ethernet IP Address Range standard IP address format Default 0 0 0 0 This setpoint specifies the dedicated IP address provided by the network administrator NOTE NOTE When changing the IP address power to...

Page 136: ...ult Serial Specifies the operands for the Comms OK flag Comm Failure Trip Range Off 1 to 29 step 1s Default Off Specifies the time without comms before a trip will be generated Comm Failure Alarm Range Off 1 to 29 step 1s Default Off Specifies the time without comms before an alarm will be generated NOTE NOTE Timing delay commences after failure is detected Change Mode on Comm Alarm Range Disabled...

Page 137: ...here is a trip or lockout condition Self Test Action Range Trip Alarm Default Trip This setpoint defines whether a self test failure will cause a trip or an alarm For relay self test the MM300 runs a series of self tests including data and program memory integrity and program execution watchdogs If any of these tests fail a self test trip or alarm is generated depending on the value of the setpoin...

Page 138: ...he Reset TCU Using Reset Key setting configuration Change Mode When Running Range Disabled Enabled Default Enabled If set to Enabled the Auto Manual mode can be changed while the motor is running Set Date Set to program today s date Set Time Set to program current time Time Offset from UTC Range 24 to 24 step 0 25 Default 0 00 Enter the time in hours that your zone is off from Universal Time Dayli...

Page 139: ...reen saver will become active after five 5 minutes of LCD inactivity The LCD will switch off after this time interval Timing is fixed Phasor Display Range Leading Lagging Default Lagging The user has the choice to display either lagging or leading phasor quantities Current Cutoff Setpoint Range 0 0 A to 1 0 A in steps of 0 1 A Default 0 2 A CT secondary currents below the cutoff will read zero In ...

Page 140: ... Recording of Trip Events Range Enabled Disabled Default Enabled Enables or disables the recording of Trip events Recording of Alarm Events Range Enabled Disabled Default Enabled Enables or disables the recording of Alarm events Recording of Control Events Range Disabled Enabled Default Enabled Enables or disables the recording of Control events Recording of Set Time Date Events Range Disabled Ena...

Page 141: ...Command is always active Flexlogic can be used to create combinations of trigger sources Trigger Position Range 0 to 100 step 1 Default 0 Percentage of the sample buffer used for pretrigger samples Trigger Mode Range Retrigger One shot Default Retrigger Determines whether or not the trigger data is overwritten with new trigger data Retrigger will overwrite the previous trigger data with the new tr...

Page 142: ... used for pretrigger samples Trigger Source Range Command VO1 to VO32 Any Trip Pickup Any Trip Any Trip Dropout Any Alarm Pickup Any Alarm Any Alarm Dropout Any Stop Start A Start B Default Command Selects a trigger source Command is always active Flexlogic can be used to create combinations of trigger sources Channel 1 Source Range Disabled Phase A Current Phase B Current Phase C Current Average ...

Page 143: ...steps of 100 operations or OFF Default OFF Enter the interval after which the contactor contacts must be inspected for wear When the Number of Starts counter exceeds this setpoint a contactor inspection interval alarm is generated To clear the Number of Motor Starts use the Clear Counters command If this feature is not required set this setpoint to OFF Max Motor Stopped Time Range 10 to 10000 hour...

Page 144: ...egative sequence currents cause rotor heating in addition to the normal heating caused by positive sequence currents When the motor is running the rotor rotates in the direction of the positive sequence MMF wave at near synchronous speed The induced rotor currents are at a frequency determined by the difference between synchronous speed and rotor speed typically 2 to 4 Hz At these low frequencies ...

Page 145: ...derating curve Figure 5 27 Motor derating factor due to unbalanced voltage Hot cold biasing When the motor is running with a constant load below the overload level the motor will eventually reach a steady state temperature which corresponds to a particular steady state thermal capacity used As some thermal capacity is used there is less thermal capacity left in the motor to cover transient overloa...

Page 146: ...ture can correct for this by forcing the Thermal Capacity Used register up to the value appropriate to the temperature of the hottest stator RTD Since RTDs are relatively slow the rest of the thermal model is still required during starting and heavy overload conditions when motor heating is relatively fast Thus the RTD bias feature does not prevent the thermal capacity used value from rising above...

Page 147: ...e MM300 to trip given the motor starts cold and the current is constant The multiplier represents the value of the Curve Multiplier setpoint This setpoint can be used to adjust the curve to match the thermal characteristics of the motor Ieq represents the equivalent motor heating current in per unit values on a full load current base The value of Ieq is limited in this equation to 8 0 to prevent t...

Page 148: ... 6 1648 5 1775 3 1902 1 1 40 91 14 182 27 273 41 364 55 455 68 546 82 637 96 729 09 820 23 911 37 1002 5 1093 6 1184 8 1275 9 1367 0 1 50 69 99 139 98 209 97 279 96 349 95 419 94 489 93 559 92 629 91 699 90 769 89 839 88 909 87 979 86 1049 9 1 75 42 41 84 83 127 24 169 66 212 07 254 49 296 90 339 32 381 73 424 15 466 56 508 98 551 39 593 81 636 22 2 00 29 16 58 32 87 47 116 63 145 79 174 95 204 11...

Page 149: ...0 64 13 69 96 75 79 81 62 87 45 4 25 5 12 10 25 15 37 20 50 25 62 30 75 35 87 41 00 46 12 51 25 56 37 61 50 66 62 71 75 76 87 4 50 4 54 9 08 13 63 18 17 22 71 27 25 31 80 36 34 40 88 45 42 49 97 54 51 59 05 63 59 68 14 4 75 4 06 8 11 12 17 16 22 20 28 24 33 28 39 32 44 36 50 40 55 44 61 48 66 52 72 56 77 60 83 5 00 3 64 7 29 10 93 14 57 18 22 21 86 25 50 29 15 32 79 36 43 40 08 43 72 47 36 51 01 5...

Page 150: ...motor has cooled as described above the lockout is replaced with a trip that can be manually reset without security login or alternatively the condition is fully reset allowing immediate restart NOTE NOTE When the Reset Lockout Using Reset Key setpoint is set to Enabled pressing the Reset key resets all Lockout and Non Lockout trips When the GCP BCP reset key is pressed continuously for more than ...

Page 151: ...the difference between the initial value and ambient when the motor is stationary Unbalance K Factor Range 0 to 19 in steps of 1 Default 0 This setpoint specifies the degree of unbalance biasing used by the thermal model A value of 0 disables the unbalance bias feature Minimize Reset Time Range Enabled Disabled Default Disabled When set to Disabled the lockout condition following a thermal protect...

Page 152: ...capacity used value of 100 If RTD bias is to be deployed enter the stator insulation temperature rating A value of 0 or a value less than the RTD Bias Center T setpoint disables the RTD bias feature Thermal O L Lockout Trip Range 10 to 100 in steps of 1 or OFF Default OFF This setpoint specifies whether the trip is considered a lockout or non lockout trip Mechanical protection Select the Home Setp...

Page 153: ...cifies the time that the motor current must reach or exceed pickup to generate a mechanical jam trip Undercurrent protection When the motor is in the running state a trip or alarm will occur should the magnitude Ia Ib or Ic fall below the pickup level for the time specified by the Undercurrent Alarm Delay The pickup levels should be set lower than the lowest motor loading during normal operations ...

Page 154: ... Setpoint The following setpoints are available for the underpower protection feature Underpower Trip Level Range 1 to 100 MNR in steps of 1 or OFF Default OFF This setpoint specifies the underpower trip pickup level A value of OFF disables the underpower trip function Underpower Trip Delay Range 1 to 60 seconds in steps of 1 Default 1 second The setpoint specifies the amount of time the motor pow...

Page 155: ...ting state and does not reach the running state by the set acceleration time The acceleration protection setpoints and logic are described below Acceleration Alarm Timer s Range 0 5 to 250 0 seconds in steps of 0 1 or OFF Default OFF This setpoint specifies the maximum acceleration time before alarming A value of OFF disables the acceleration protection alarm Acceleration Trip Timer s Range 0 5 to...

Page 156: ... both starting and running the motor The phase undervoltage element may be used to protect against these problems however it requires the 3 VT input option B card to be installed The auxiliary undervoltage element may be used if there is no installed option B card the relay auxiliary VT input is derived from the motor supply and where errors introduced by the control power transformer can be toler...

Page 157: ...is used and the ground CT is selected as CBCT 2000 1 Various situations for example contactor bounce may cause transient ground currents during motor starting that exceed the ground fault pickup levels for a very short period of time The delay can be fine tuned to an application so it still responds very quickly but rides through normal operational disturbances Normally the ground fault time delay...

Page 158: ...e current exceeds the setpoints an alarm or trip condition is generated The calculation method is as follows Current Unbalance Trip Level Range 4 to 40 in steps of 1 or OFF Default 30 This setpoint specifies the current unbalance trip pickup level A value of OFF disables the current unbalance trip function Current Unbalance Trip Delay Range 1 to 60 seconds in steps of 1 Default 1 second This setpo...

Page 159: ...Level Range 60 to 99 of MNV in steps of 1 or OFF Default OFF This setpoint specifies the phase undervoltage alarm pickup level as a percentage of the rated voltage Undervoltage Alarm Delay Range 1 to 60 seconds in steps of 1second Default 30 seconds This setpoint specifies the time that the voltage must be less than or equal to the undervoltage alarm pickup level to generate an alarm Undervoltage ...

Page 160: ... steps of 1 or OFF Default OFF This setpoint specifies the overvoltage alarm pickup level as a percentage of the rated voltage Overvoltage Alarm Delay Range 1 to 60 seconds in steps of 1 s Default 30 seconds This setpoint specifies the time that the voltage must meet or exceed the overvoltage alarm pickup level to generate an alarm Overvoltage Trip Level Range 101 to 120 of MNV in steps of 1 or OF...

Page 161: ... the Home Setpoints Protection Sensor page to edit the mechanical protection setpoints RTD protection The MM300 can support up to six 100 R RTDs each of which may be configured to have a trip temperature and an alarm temperature The alarm temperature is normally set slightly greater than normal running temperature and the trip temperature is normally set at the insulation rating Trip voting has be...

Page 162: ...abled Disabled Default Disabled Enable to generate an alarm if RTD is shorted opened RTD 1 Application to RTD 3 Application Range None Stator Bearing Ambient Other Default None These setpoints select the application type for RTDs 1 through 6 respectively RTD 1 Alarm Temp to RTD 6 Alarm Temp Range 1 to 250 C in steps of 1 or OFF Default OFF These setpoints specify the alarm temperature for RTDs 1 t...

Page 163: ...nected the thermistor alarm and trip detection must be set to DISABLE Cold Resistance Range 0 1 to 30 0 kOHMS in steps of 0 1 Default 0 1 kOHMS For a PTC thermistor enter the resistance that the thermistor must drop below before a Thermistor Trip or Alarm can be cleared For an NTC thermistor enter the resistance that the thermistor must rise above before a Thermistor Trip or Alarm can be cleared H...

Page 164: ...rom pushbuttons or switches located adjacent to the controlled equipment MCC controls received from the control panel of the MM300 Communications and hard wired controls are considered to be auto controls and are inhibited unless auto mode is on Likewise field and MCC controls are considered to be manual controls and are inhibited unless manual mode is on Each source may also have a contact input ...

Page 165: ... control element Path Home Setpoints Control Starter Comms Start Ctrl Range Enabled Disabled Default Disabled Sets whether start commands are accepted via communications Comms Stop Mode Range Always Enabled Follow Ctrl Mode Default Always Enabled If set to Always Enabled communication stops will always be honoured irrespective of the Comms Start Ctrl setpoint and auto manual mode If set to Follow ...

Page 166: ...ult Stop Defines whether field control trips reset required to clear or stops no reset required Field 2W 3W Range 2W 3W Default 3W Two wire or three wire controls selection If in the two wire mode all field start contact inputs being open will be treated as a field stop control For reversing and two speed starter configurations both start inputs open is treated as a field stop control MCC Start Ct...

Page 167: ... not declare the motor reaching the running state or declare it much too soon Another problem can develop when there is a brief supply interruption for which the immediate undervoltage restart feature recloses the contactor so quickly that there is little or no inrush current The traditional algorithm would detect the start if it is fast enough but may or may not detect the running state that foll...

Page 168: ...If the relay does not contain records of five successful starts a value of 85 is used for the learned thermal capacity used which requires the thermal capacity used to decay to the same 15 level required when the margin setpoint is zero In addition since a 2 safety margin is included for the relay to determine if Thermal Capacity Used has decreased enough ie the motor has cooled enough to allow an...

Page 169: ... OFF This setpoint specifies the start inhibit margin A value of OFF disables start inhibits A value of 0 causes starts to be inhibited until the thermal capacity used value calculated by the thermal model drops to 15 or less Setpoint values in the range of 1 to 10 specify the margin to be included in the calculation of the learned thermal capacity used at start value and cause starts to be inhibi...

Page 170: ...an remain unhealthy during normal running If the startup override timer has expired and the switch then goes unhealthy for longer than the IL A J Running Override delay setpoint the interlock performs its configured action If the IL A J Running Override is OFF and the switch goes unhealthy after the startup override has expired no action will occur The process interlocks may also be set such that ...

Page 171: ... interlock switch to reach the healthy state measured from the moment a start control is received This includes any pre contactor time A value of 0 inhibits starts if the switch state is unhealthy IL A Running Override Range 0 to 3600 seconds in steps of 1 or OFF Default 0 seconds This setpoint specifies the time the switch can remain unhealthy during normal running A value of OFF indicates the in...

Page 172: ...nning at the time a short dip occurred a forced restart will occur as soon as the relay detects healthy auxiliary voltage An immediate restart bypasses any pre contactor and staged startup sequence the starter type might otherwise provide If the motor was running at the time a medium or long dip occurred after a settable medium or long delay a normal start will be performed If the motor was not ru...

Page 173: ...eps of 0 1 seconds Default 2 0 s This setpoint represents the maximum duration of medium dips UVR Long Dip Time Range 0 5 to 60 min in steps of 0 5 min or OFF Default OFF This setpoint represents the maximum duration of long dips A value of Off disables restarts after long dips UVR Med Dip Delay Range 0 2 to 90 0 seconds in steps of 0 2 seconds Default 2 0 s This setpoint represents the UV restart...

Page 174: ...M INSTRUCTION MANUAL CONTROL ELEMENTS CHAPTER 5 SETPOINTS NOTE NOTE NCV Nominal Control Voltage is calculated depending on Aux VT connection With UVR enabled contact input states in slot C are invalid while the Auxiliary Voltage is low ...

Page 175: ...s plus lockout reset and reset counters Level 3 level 2 privileges plus factory page The MCC passcode can be entered at any time by a sustained press on the ENTER key displays a dialog box prompting for a new passcode Alternatively the MCC passcode can be entered by pressing a currently unauthorized grayed out control selection key This will display an error message detailing the required security...

Page 176: ...ctly entered matching the value of this setpoint Access Switch Level Range 1 2 3 Default value 1 Sets the access level provided by the access switch being closed The contact input for the access switch is configured on the contact inputs page Comms security Range Enabled Disabled Default Disabled Sets whether the security feature applies to the communications ports MCC setpoint access Range Enable...

Page 177: ... from the event recorder After a short length of time depending on the number of recorded events the green Loading Complete indicator will become active and the most recent event placed at the top of the list with the oldest event at the bottom The MM300 loads the event list with the most recent event automatically selected If a new event occurs while viewing the event page the event list will aut...

Page 178: ...em problems and for spotting trends Several general counters are also available Total Number of Trips Overload Trips Mechanical Jam Trips Undercurrent Trips Current Unbalance Trips Ground Fault Trips Motor Acceleration Trips Underpower Trips Range 0 to 65535 trips in steps of 1 These values display a breakdown of number of trips by type When the total number of trips for any counter exceeds 65535 ...

Page 179: ...outine maintenance Counter will roll over to zero after range is exceeded To clear this value use the Clear Maintenance Timers command and start the motor Motor Stopped Hours Range 0 to 100000 hours in steps of 1 The motor stopped hours timer accumulates the total stopped time for the motor This value may be useful for scheduling routine maintenance To clear this value use the Clear Maintenance Ti...

Page 180: ... page is shown below Figure 6 6 Learned data values The MM300 learns the acceleration time the starting current the starting capacity and the average motor load during motor starts This data is accumulated based on the last five successful starts Learned Acceleration Time Range 0 0 to 200 0 ms in steps of 0 1 s If motor load during starting is relatively consistent the learned acceleration time ma...

Page 181: ... a start inhibit will be issued Starting will be blocked until there is sufficient thermal capacity available Average Motor Load Learned Range 0 00 to 20 00 FLA in steps of 0 01 The MM300 can learn the average motor load over a period of time fixed at 15 minutes The calculation is a sliding window of 15 minutes updated each minute It is ignored during motor starting the motor must be running to up...

Page 182: ...alog Samples Stored Range 0 to 256 Count of the number of samples stored in the data log for the current trigger cause Trigger Cause Range None Command VO1 to VO32 Any Trip Pickup Any Trip Any Trip Dropout Any Alarm Pickup Any Alarm Any Alarm Dropout Any Stop Start A Start B Indicates the cause of the datalog trigger Trigger Date Date of the current trigger Trigger Time Time of the current trigger...

Page 183: ... motor Clear Last Trip Data Prompt Clears all information from the last trip Clear Trip Counters Clears the following counters Total Number of Trips Overload Trips Mechanical Jam Trips Undercurrent Trips Current Unbalance Trips Ground Fault Trips Motor Acceleration Trips Underpower Trips and Number of UV Restarts Clear Maintenance Timer Clears maintenance information timers including Motor Running...

Page 184: ...6 8 MM300 MOTOR MANAGEMENT SYSTEM INSTRUCTION MANUAL COMMANDS CHAPTER 6 DIAGNOSTICS ...

Page 185: ...sult of the operation is placed back on the stack The operators are logic gates for example AND OR NOT timers latches one shots and assignments Assignment operators assign the value calculated by the preceding operators to a special class of operands called virtual outputs Like any other operand a virtual output can be used as an input to any operator feedback to achieve seal in is allowed When li...

Page 186: ... value is the value of the named operand NOT 1 The output value is on if and only if the intput value is off OR 2 to 16 The output value is on if and only if any of the input values are on AND 2 to 16 The output value is on if and only if all of the input values are on NOR 2 to 16 The output value is on if and only if all of the input values are off NAND 2 to 16 The output value is on if and only ...

Page 187: ...ield Start A or Hardwired Start A is open in two wire control mode Stop B Element Asserted when either the Field Start B or Hardwired Start B is open in two wire control mode Stop Asserted when any lockout trip or stop is on Comms Start A Asserted when a start A control is received via communications Comms Start B Asserted when a start B control is received via communications Comms Stop Asserted w...

Page 188: ...rse is appended to the displayed basic status Input Output Operands VO1 Asserted when virtual output 1 is on VO2 to VO32 As above asserted when virtual outputs 2 through 20 are on respectively Protection operands acceleration protection Acceleration Alarm Asserted when an acceleration alarm condition exists Acceleration Trip Asserted when an acceleration trip condition exists Protection operands a...

Page 189: ...hibit Asserted when the motor is too hot to be started Time Between Inhibit Asserted when the minimum time between starts has not expired since the last motor start Protection operands thermal model Thermal Level Alarm Asserted when the thermal capacity used alarm condition exists Thermal O L Trip Asserted when the thermal model has operated and the motor has cooled but the trip has not yet been r...

Page 190: ... when the running hours exceed the alarm level Contactor Inspect Alarm Asserted when the number of starts exceeds the alarm level Max Stopped Alarm Asserted when the stopped hours exceed the alarm level Configuration Relay Not Configured Asserted when critical settings are not stored Reset Remote Reset Closed Asserted when the Remote Reset input is closed Lockout Reset Closed Asserted when the Loc...

Page 191: ...s These can be used simultaneously RS485 10 100Base T Ethernet Fieldbus NOTE NOTE Setpoint changes related to DeviceNet Profibus and Ethernet require a power cycle to be activated NOTE NOTE External power must be present on the Fieldbus port at power up in order to correctly initialize and operate NOTE NOTE For full details please refer to the MM300 Communications Guide to be found on the GE Multi...

Page 192: ...8 2 MM300 MOTOR MANAGEMENT SYSTEM INSTRUCTION MANUAL COMMUNICATIONS INTERFACES CHAPTER 8 COMMUNICATIONS ...

Page 193: ...1 9023 A3 6 February 2008 1601 9023 A4 13 May 2008 1601 9023 A5 10 September 2008 1601 9023 A6 22 October 2008 1601 9023 A7 31 August 2009 1601 9023 A8 21 April 2010 1601 9023 A9 23 July 2010 1601 9023 AA 30 September 2014 1601 9023 AB 18 December 2015 1601 9023 AC 5 April 2016 1601 9023 AD 31 May 2016 Table A 2 Major Updates for MM300 AD Section Number Changes Cover Manual revision number from AC...

Page 194: ... AB Section Number Changes Cover Manual revision number from AA to AB Added EAC logo Changed branding to Grid Solutions Front Matter Added Storage section Chapter 1 Overview Added General Safety Precautions section Updated Testing and certification section to include EAC certification Country of origin Date of manufacture and Declaration of conformity Added Noise level to Environmental Specificati...

Page 195: ..._E low voltage module Table A 8 Major Updates for MM300 A7 Section Number CHANGES Manual revision number from A6 to A7 General Minor Corrections 1 2 9 1 2 11 Realignment of information Table A 9 Major Updates for MM300 A5 Section Number CHANGES Manual revision number from A4 to A5 4 1 2 Added new section Troubleshooting the USB Driver 6 2 4 Drive Available setpoint added 6 3 3 5 Note added re Aux ...

Page 196: ...added Ch6 Setpoints Counters section added Ch7 Diagnostics Waveform section added Ch7 Diagnostics Datalog section added Table A 12 Major Updates for MM300 A2 Section Number CHANGES Manual revision number from A1 to A2 Ch1 MM300 Order Codes Change to Protection section of Order Table Ch2 Mounting Control Panel mounting drawing added Ch4 Status Description of use of enter symbol added Ch5 Comm Setpo...

Page 197: ...pter Obtain a Return Materials Authorization RMA number from the Technical Support Center Verify that the RMA and Commercial Invoice received have the correct information Tightly pack the unit in a box with bubble wrap foam material or styrofoam inserts or packaging peanuts to cushion the item s You may also use double boxing whereby you place the box in a larger box that contains at least 5 cm of...

Page 198: ...A 6 MM300 MOTOR MANAGEMENT SYSTEM INSTRUCTION MANUAL REPAIRS CHAPTER A APPENDIX A ...

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