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GE 239, Инструкция по эксплуатации

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4-26

239 Motor Protection Relay

GE Multilin

4 PROGRAMMING

4 PROGRAMMING

4

Under normal balanced conditions the stator current in each of the three motor phases is equal
and the rotor current is just sufficient to provide the turning torque. When the stator currents are
unbalanced, a much higher current is induced in the rotor because it has a lower impedance to
the negative sequence current component present under unbalanced conditions. This current is
normally at about twice the power supply frequency and produces a torque in the opposite direc-
tion to the desired motor output. Usually the increase in stator current is small (125 to 200%) so
that timed overcurrent protection takes a long time to trip. However the much higher induced
rotor current can cause extensive rotor damage in a short period of time. Motors can tolerate dif-
ferent levels of current unbalance depending on the rotor design and heat dissipation character-
istics.

•

UNBALANCE TRIP PICKUP: Unbalance protection is recommended at all times. Motor data is
rarely provided and direct measurement of rotor temperature is impractical so setting the unbal-
ance level is empirical. For a known balanced situation, a pickup level of 10% and time delay of 5
seconds is recommended as a starting point. The pickup level can be decreased until nuisance
tripping occurs. Similarly the time delay may be increased if necessary.

To prevent nuisance trips/alarms on lightly loaded motors when a much larger unbalance level
will not damage the rotor, the single phase detection will automatically be defeated if the average
motor current is less than 30% of the full load current (

I

FLC

) setting. Unbalance is calculated as:

where:

I

av

 = average phase current

I

m

 = current in a phase with maximum deviation from 

I

av

I

FLC

 = motor full load current setting

•

UNBALANCE ALARM: The operation of this feature is identical to the operation of the unbal-
ance trip feature.

•

UNBALANCE ALARM PICKUP: The operation of this feature is identical to the operation of the
unbalance trip pickup feature.

•

UNBALANCE DELAY: If phase current unbalance increases above 

81%$/$1&($/$503,&.83

 or

81%$/$1&(75,33,&.83

 setpoint value and remains this way for the time delay programmed in this

setpoint, the respective relay will activate and the respective warning message will be displayed.

g) HOT MOTOR

•

THERMAL CAPACITY USED: This feature is used to signal a warning when the thermal capac-
ity has exceeded a level set in this setpoint. Once the set level is exceed the alarm relay will acti-
vate immediately and the “THERMAL CAPACITY USED ALARM” message will be displayed.

h) BREAKER FAILURE

•

BREAKER FAILURE FUNCTION: This feature is used to activate the selected relay, if the cur-
rent continues to flow after a trip has occurred. If the feature is assigned to 

$/$50

 or 

$/$50 $8;

,

the “BREAKER FAILURE ALARM” message will be displayed and the assigned output relay will
be active. If the function is assigned to 

$8;,/,$5<

, the auxiliary output relay will be active but, no

message will be displayed.

I

av

I

FLC

≥

:

I

m

I

av

–

I

av

---------------------

100%

×

I

av

I

FLC

<

:

I

m

I

av

–

I

FLC

---------------------

100%

×

Содержание 239

Страница 1: ...lin 215 Anderson Avenue Markham Ontario Canada L6E 1B3 Tel 905 294 6222 Fax 905 201 2098 Internet http www GEindustrial com multilin Manufactured under an ISO9002 Registered system g GE Power Management TRIP ALARM AUXILIARY SERVICE PICKUP COMMUNICATE RESET STORE ACTUAL VALUE MESSAGE SETPOINT 239 Motor Protection Relay CAUSE OF LAST TRIP MECHANICAL JAM C US ...

Страница 2: ......

Страница 3: ...hould further information be desired or should particular problems arise which are not covered sufficiently for the pur chaser s purpose the matter should be referred to the General Electric Company To the extent required the products described herein meet applicable ANSI IEEE and NEMA standards but no such assurance is given with respect to local codes and ordinances because they vary greatly ...

Страница 4: ......

Страница 5: ...3 4 KEYS 3 3 3 5 SETPOINT ACCESS 3 6 3 6 DEFAULT MESSAGES 3 6 4 PROGRAMMING 4 1 SETPOINT ENTRY METHODS 4 1 4 2 S1 239 SETUP 4 3 4 3 S2 SYSTEM SETUP 4 9 4 4 S3 OUTPUT RELAYS 4 13 4 5 S4 PROTECTION 4 15 4 6 TEMPERATURE 4 29 4 7 SWITCH INPUTS 4 33 4 8 MULTI SPEED MOTOR 4 33 4 9 S5 TESTING 4 36 5 MONITORING 5 1 ACTUAL VALUES VIEWING 5 1 5 2 A1 STATUS 5 2 5 3 A2 METERING 5 6 5 4 A3 PRODUCT INFO 5 9 6 2...

Страница 6: ...12 08 LOOPBACK TEST 7 8 7 13 16 STORE MULTIPLE SETPOINTS 7 9 7 14 16 PERFORMING COMMANDS 7 10 7 15 ERROR RESPONSES 7 11 7 16 MEMORY MAP INFORMATION 7 11 7 17 USER DEFINABLE MEMORY MAP 7 11 7 18 239 MEMORY MAP 7 13 7 19 MEMORY MAP DATA FORMATS 7 31 8 TESTING 8 1 PRIMARY INJECTION TESTING 8 1 8 2 SECONDARY INJECTION TESTING 8 1 8 3 PHASE CURRENT ACCURACY 8 2 8 4 PHASE CURRENT OVERLOAD 8 3 8 5 PHASE ...

Страница 7: ... The relay is used as a pilot device to cause a contactor or breaker to open under fault conditions that is it does not carry the primary motor current When the over temperature option is ordered up to 3 RTDs can be monitored These can all be in the sta tor or 1 in the stator and 2 in the bearings Installing a 239 in a motor starter for protection and moni toring of motors will minimize downtime d...

Страница 8: ...RVICE RELAY RS485 ALARM RELAY TRIP RELAY LOCKED ROTOR SHORT CIRCUIT TIMED OVERLOAD INSTANTANEOUS GROUND FAULT STATOR OVER TEMPERATURE BEARING OVER TEMPERATURE UNBALANCE UNDERCURRENT SERVICE ALARM FAULT ALARM PROCESS CONTROL FAULT PROCESS ALARM 52 3 PHASE 4160V BUS 400A FUSED CONTACTOR 3 PHASE CTs TRIP GROUND CT THERMISTOR STATOR RTD BEARING RTDs RS485 REMOTE COMMUNICATION 239 RELAY ...

Страница 9: ...n alarm Auxiliary Lit when the auxiliary relay is operated Service Lit when the 239 detects an internal fault condition Pickup Lit when motor full load or ground is exceeded Communicate Off if there is no communication at all flashes if RS485 activity but invalid messages and on steady if communication is successful pickup KEYPAD Rubber keypad makes installed unit dust tight and splash proof Meets...

Страница 10: ...ty meter CUSTOMER ACCESSIBLE FUSE Door slides open for easy access to fuse AC DC CONTROL POWER Universal control power 90 300 VDC 70 265 VAC GROUND CT INPUT 5A or 50 0 025 CT input for residually connected phase CTs or separate core balance CT PHASE CT INPUTS 3 isolated phase CT inputs Accept 1 amp or 5 amp secondary TEMPERATURE SENSING NTC or PTC thermistor input OPTIONAL 3 RTD INPUTS Mix RTD typ...

Страница 11: ...pumps fans saw mill cutters and compressors against mechan ical jam using the mechanical jam trip feature 5 Safety to personnel from shock hazard using the ground fault feature to detect winding shorts or leakage currents from moisture in mines 6 Protection of motors and equipment from operator abuse using the thermal memory lockout Cost savings are provided using versatile features such as 1 Diag...

Страница 12: ...nsing with 120 V AC polarizing voltage MOD 512 1 AMP Ground CT input MOD 513 Class 1 Division 2 operation MOD 517 Australian Mines approval b ACCESSORIES 239PC Windows software free upon request Phase and ground CTs RS232 to RS485 converter required to connect a computer to the 239 relay s to run 239PC RS485 Terminating Network 2 25 collar for limited depth mounting 1009 0068 Large size 8 5 x 11 i...

Страница 13: ...ip time accuracy guaranteed if current 1 4 trip level setting BREAKER FAILURE TIMING DELAY INST or 10 to 60000 ms programmable INST 20 to 45ms TOTAL DELAY INST INTENTIONAL trip time accuracy guaranteed if current 1 4 trip level setting START PROTECTION THERMAL separate start run protection ACTIVATION inrush 3 phase current increases from 5 to 101 FLC in 1 s DEACTIVATION current drops to 100 FLC mo...

Страница 14: ...UTPUT 29 V DC 10 mA pulsed DURATION 100 ms minimum CONTROL POWER INPUT 90 to 300 VDC or 70 to 265 VAC 50 60 Hz POWER 10 VA nominal 20 VA max HOLDUP non failsafe trip 200 ms failsafe trip 100 ms both times at 120VAC 125VDC It is recommended that all 239 relays be powered up at least once per year to avoid deterioration of electrolytic capacitors in the power supply PROGRAMMABLE OUTPUT 0 1 mA 0 20 m...

Страница 15: ...ANCE IEC255 5 500 V DC TRANSIENTS ANSI C37 90 1 Oscillatory 2 5 kV 1 MHz ANSI C37 90 1 Fast Rise 5 kV 10 ns Ontario Hydro A 28M 82 IEC255 4 Impulse High Frequency Disturbance Class III Level IMPULSE TEST IEC 255 5 0 5 Joule 5 kV RFI 50 MHz 15 W Transmitter EMI C37 90 2 Electromagnetic Inter ference 150 MHz and 450 MHz 10 V m STATIC IEC 801 2 Static Discharge HUMIDITY 95 non condensing TEMPERATURE ...

Страница 16: ...1 10 239 Motor Protection Relay GE Multilin 1 OVERVIEW 1 OVERVIEW 1 ...

Страница 17: ...dimensions for the 239 and the required cutout dimensions are shown below Once the cut out and mounting holes are made in the panel use the eight 6 self tapping screws supplied to secure the relay Mount the relay on a panel or switchgear door to allow operator access to the front panel keys and indicators Figure 2 1 PHYSICAL DIMENSIONS ...

Страница 18: ...ows the revision history of the 239 Each revision of the instruction manual cor responds to a particular firmware revision in the 239 The instruction manual revision is located on the first page of the manual as part of the manual P N 1601 00XX Revision The 239 firmware revi sion is loaded in the relay and can be found by scrolling to the display message 352 8 7 1 2 50 5 9 56 216 0 1 352 5 0 9 5 W...

Страница 19: ...ase A CT 5A 13 Safety ground 36 Control live 2 Phase A CT 1A 14 Filter ground 37 Control neutral 3 Phase A CT COM 15 RS485 A 38 Sw com 4 Phase B CT 5A 16 RS485 B 39 Sw com 5 Phase B CT 1A 17 RS485 ground 40 Sw com 6 Phase B CT COM 18 Analog out 41 Sw com 7 Phase C CT 5A 19 Analog out 42 Sw com 8 Phase C CT 1A 20 Analog out shield 43 Access sw 9 Phase C CT COM 21 Thermistor in 44 Restart sw 10 Grou...

Страница 20: ...OM COM COM COM NC NC NC NC 26 27 28 29 30 31 32 33 34 43 38 44 39 45 40 46 41 47 42 SETPOINT ACCESS ACCESS KEY SWITCH EMERGENCY RESTART EMERGENCY RESTART EXTERNAL RESET EXTERNAL RESET OPTION 1 OPTION 1 OPTION 2 OPTION 2 S1 S2 S3 S4 S5 SWITCH INPUTS OUTPUT RELAYS RELAY 1 TRIP RELAY 2 ALARM RELAY 3 AUXILIARY RELAY 4 SERVICE CURRENT INPUTS 239 MOTOR PROTECTION RELAY 13 14 36 37 SAFETY GROUND FILTER G...

Страница 21: ...ry current and the connection wiring burden The CT must not saturate under maximum current conditions which can be up to 8 times motor full load during starting or greater than 12 times during a short circuit Only CTs rated for protective relaying should be used since metering CTs are usually not rated to provide enough current during faults Examples of typical CT ratings are Table 2 3 TYPICAL CT ...

Страница 22: ...from being off by a factor of 5 the ground CT primary setpoint must be adjusted See Section 4 3a CT INPUTS on page 4 10 under 5281 7 35 0 5 for suitable settings in this situation Due to the low secondary currents it is recommended that the ground CT secondary leads be twisted together and routed to the 239 away from high current carrying conductors NOTE The 50 0 025 input is only recommended for ...

Страница 23: ...s The breaker auxiliary 52a contact closed when the breaker is closed should be wired in series with the trip relay to break the current to the trip coil as soon as the breaker opens Program the trip relay as non failsafe Breaker close coil control is not provided by the 239 as it is a protection device Con trol for closing the breaker must be provided externally ALARM RELAY 26 27 28 A selected al...

Страница 24: ...ice is required This relay is internally programmed to be failsafe so that in the normal condition with control power applied the relay is energized and the NO COM terminals shown in Figure 2 3 TYPICAL WIRING DIAGRAM on page 2 4 are closed Connect these relay contacts to a suitable signaling input of a DCS system e SWITCH INPUTS Each switch common terminal 38 39 40 41 42 is internally connected in...

Страница 25: ...an overload trip Caution is recommended in the use of Emergency Restart input since the thermal protective functions of the 239 will be over ridden and it is possible to damage the motor EXTERNAL RESET 40 45 An external reset switch which has the same effect as the front panel RESET key or a serial port reset command can be connected to terminals 40 and 45 for remote reset operation The switch sho...

Страница 26: ... type of wire Each RTD COM terminal is internally connected to the safety ground terminal 13 Consequently where code permits the 3 RTD terminals should not be grounded at the motor end for the lead resistance compensation to work correctly If 10 Ω copper RTDs are used special care should be taken to keep the lead resistance as low as possible If no RTD sensor is installed the cor responding termin...

Страница 27: ...ull scale the output will saturate at 21 mA 0 20 4 20 range or 1 1 mA 0 1 range This analog output is isolated Since both output terminals 18 and 19 are floating the con nection of the analog output to a process input will not introduce a ground loop Part of the system should be grounded for safety typically at the programmable controller For floating loads such as a meter ground terminal 19 exter...

Страница 28: ...rical matching of the loads Using terminating resistors on all the 239s would load down the communication network while omitting them at the ends could cause reflections resulting in garbled data Install the 120 Ω watt terminat ing resistors and 1 nF capacitor externally Although any standard resistor or capacitor of these val ues are suitable these components can also be ordered from GE Multilin ...

Страница 29: ... IEC 801 and ANSI C37 90 2 4 DIELECTRIC STRENGTH TESTING It may be required to test a complete motor starter for dielectric strength with the 239 installed This is also known as flash or hipot testing The 239 is rated for 1530 V AC isolation for 1 minute or 1836 V AC for 1 second between relay contacts CT inputs control power inputs and safety ground terminal 13 Some precautions are necessary to p...

Страница 30: ...2 14 239 Motor Protection Relay GE Multilin 2 INSTALLATION 2 INSTALLATION 2 Figure 2 8 DIELECTRIC STRENGTH TESTING ...

Страница 31: ...TORE ACTUAL VALUE MESSAGE SETPOINT DISPLAY 40 character illuminated display for all light conditions Setpoints Actual values Status messages Fault conditions STATUS INDICATORS Trip Lit when the 239 detects a trip Alarm Lit when the 239 detects an alarm Auxiliary Lit when the auxiliary relay is operated Service Lit when the 239 detects an internal fault condition Pickup Lit when motor full load or ...

Страница 32: ... the keys on the keypad was last pressed NOTE Message brightness control is available only on units with the VFD display 3 3 STATUS INDICATORS Figure 3 3 239 STATUS INDICATORS TRIP The 75 3 indicator flashes when the 239 has tripped This will be caused by any trip condi tion overload short circuit etc or a serial trip command issued via the communication port The indicator and the trip relay are r...

Страница 33: ...t terminals the 20081 7 indi cator will be off This situation will occur if there is no connection the serial wires have become disconnected or the master computer is inactive If there is activity on the serial port but the 239 is not receiving valid messages for its internally programmed address the indicator will flash This could be caused by incorrect message format such as baud rate or framing...

Страница 34: ...essage if the cause of the trip is no longer present If the trip condition is still present one of following two messages will flash to indicate that reset is not possible The key along with the key is also used to remove user defined default mes sages Refer to Section 3 6 DEFAULT MESSAGES on page 3 6 for further details MESSAGE UP DOWN LEFT RIGHT To move between message groups within a page use t...

Страница 35: ...REFERENCES ANALOG OUTPUT RS485 SERIAL PORT TEMPERATURE DISPLAY IN CELSIUS DEFAULT MESSAGE TIME 1 0 MINUTES DEFAULT MESSAGE BRIGHTNESS 60 BLOCK KEYPAD TRIP RESET NO MESSAGE MESSAGE SETPOINT MESSAGE4 MESSAGE3 SETPOINTS S2 SYSTEM SETUP SETPOINT ANALOG OUTPUT TYPE MOTOR LOAD ANALOG OUTPUT RANGE 0 1 mA MESSAGE4 MESSAGE3 SERIAL COMMS FAILURE ALARM OFF SLAVE ADDRESS 1 BAUD RATE 9600 BAUD MESSAGE MESSAGE ...

Страница 36: ...nd control 3 5 SETPOINT ACCESS Hardware security is designed into the relay to provide protection against unauthorized setpoint changes To program new setpoints using the front panel keys a hardware jumper must be installed across the setpoint access terminals on the back of the relay These terminals can be permanently wired to a panel mounted keyswitch if this is more convenient Attempts to enter...

Страница 37: ... 7 0 66 7 0 has expired Use the keys to display the set point or actual value message to be deleted from the default message queue and follow the steps shown below Each 239 is pre programmed with five default messages as shown below Note each time the fac tory setpoints are reloaded the user programmed default messages are overwritten with these mes sages MESSAGE MESSAGE VALUE VALUE STORE MOTOR LO...

Страница 38: ...EQUENCE SYSTEM STATUS NORMAL A 100 B 100 C 100 AMPS CURRENT UNBALANCE U B 0 THERMAL CAPACITY USED 0 PHONE 905 294 6222 GEindustrial com pm Location ACTUAL VALUES A1 STATUS GENERAL Location ACTUAL VALUES A2 METERING CURRENT Location ACTUAL VALUES A2 METERING CURRENT Location ACTUAL VALUES A2 METERING MOTOR CAPACITY Location ACTUAL VALUES A1 STATUS PROGRAMMABLE MESSAGE ...

Страница 39: ...ges are described individually and a reference of all messages is also provided at the end of the chapter Messages may vary somewhat from those illustrated because of installed options Also some messages associated with disabled features are hidden This context sensitive operation elim inates confusing detail Before attempting to start the protected motor setpoints on each page should be worked th...

Страница 40: ...TPOINT SETPOINT SETPOINT SETPOINT MESSAGE PREFERENCES ANALOG OUTPUT RS485 SERIAL PORT DEFAULTS PROGRAMMABLE MESSAGE PRODUCT OPTIONS CT INPUTS MOTOR DATA TRIP RELAY ALARM RELAY AUXILIARY RELAY PHASE CURRENT GROUND CURRENT TEMPERATURE SWITCH INPUTS GE POWER MANAGEMENT USE ONLY MESSAGE MESSAGE MESSAGE MESSAGE TEST CONFIGURATION TEST RELAY LEDS CURRENT SIMULATION ANALOG OUTPUT SIMULATION SWITCH INPUTS...

Страница 41: ...NO SETPOINTS S2 SYSTEM SETUP SETPOINT Range CELSIUS FAHRENHEIT Range 0 1 to 5 0 OFF Step 0 1 min Range 0 to 100 Step 20 BLOCK KEYPAD TRIP RESET NO Range YES NO Range AVERAGE PHASE AMPS MOTOR LOAD THERMAL CAPACITY RTD 1 2 3 TEMPERATURE Range 0 1 mA 0 20 mA 4 20 mA Range ON OFF Range 1 255 Step 1 Range 1200 2400 4800 9600 19200 Range NONE EVEN ODD Range YES NO Range YES NO MESSAGE s t MESSAGE 4 MESS...

Страница 42: ...etpoint or measured value can be selected as a default message Refer to Section 3 6 DEFAULT MESSAGES on page 3 6 for information on removing and adding new default mes sages Default messages can be disabled by setting this setpoint to 2 When this setpoint is turned off the currently displayed message will remain displayed until a condition such as a trip alarm or key press forces the 239 to displa...

Страница 43: ... pickup LED indicator and overload protection are not affected by this setpoint b ANALOG OUTPUT ANALOG OUTPUT TYPE If the relay is to be used in conjunction with programmable control lers automated equipment or a chart recorder the analog output can be used for continuous monitoring Choose from one of the following parameters for output 7 50 3 7 9 5 3 6 036 02725 2 phase current as a percentage of...

Страница 44: ...n port which may be selected to one of or baud All relays on the RS485 communication link and the computer connecting them must run at the same baud rate The fastest response will be obtained at 19200 baud Slower baud rates should be used if noise becomes a problem The data frame consists of 1 start bit 8 data bits 1 stop bit and a programmable parity bit see 6 6 783 56 6 5 3257 3 5 7 The baud rat...

Страница 45: ... the new desired options for the 239 SELECT MOD 1 TO ENABLE Enter the desired mod If no MOD is to be enabled enter zero 0 SELECT MOD 2 TO ENABLE Enter the desired mod If no MOD is to be enabled enter zero 0 SELECT MOD 3 TO ENABLE Enter the desired mod If no MOD is to be enabled enter zero 0 SELECT MOD 4 TO ENABLE Enter the desired mod If no MOD is to be enabled enter zero 0 SELECT MOD 5 TO ENABLE ...

Страница 46: ...ginal 239 was ordered with the AN option After receiving the unit require ments have changed for the 239 and the RTD option is now required Step 1 To add the RTD option to the 239 while keeping the AN option enter 57 1 in the 6 7 237 216 72 1 setpoint Step 2 If no Mods are to be enabled leave zeros in the 6 7 02 72 1 setpoints Step 3 With the unit serial number and the unit options required call t...

Страница 47: ...nge RESIDUAL CORE BAL 50 0 025 COR BAL X 5 OFF Range 5 to 1500 Step 5 A Range 50 60 Range 1 to 1500 OFF Step 1 CT PRI SET 50 A Range 0 1 to 150 0 OFF Step 0 1 CT PRI SET 50A Range 1 00 to 5 00 Step 0 05 MESSAGE MESSAGE MESSAGE MESSAGE MESSAGE 4 MESSAGE 4 MESSAGE 3 MESSAGE 3 USE OVERLOAD PICKUP INHIBIT ON RUN LOCKED ROTOR CURRENT 6 0 x FLC SAFE STALL TIME COLD 10 0 s HOT COLD CURVE RATIO 85 END OF ...

Страница 48: ...g the next message 5281 7 35 0 5 GROUND CT PRIMARY This message will only be visible if the ground sensing in the previous message is selected as core balance x 5 Enter the CT primary current For example if a 50 5 CT is installed for ground sensing enter 50 One amp CTs can also be used for ground sensing In this case enter the CT primary value multiplied by 5 For example if a 100 1 ground CT is in...

Страница 49: ...7 2 setpoint is deter mined from the motor data using the Locked Rotor Time Hot and Locked Rotor Time Cold speci fications as shown below where LRT Hot Locked Rotor Time Hot is defined as the locked rotor time when the motor has been running at FLC for a time sufficient for the motor temperature to reach a steady state value LRT Cold Locked Rotor Time Cold is defined as the locked rotor time when ...

Страница 50: ...y set ting this setpoint to 6 the start protection on the 239 can be defeated If the setpoint is set to 6 the 239 will go directly into run condition and overload curves will be employed to protect the connected load This setpoint can also be used in conjunction with a switch input If the 6 67 576 setpoint is programmed to 6 and 237 21 6 7 81 7 21 setpoint described on page 4 33 is assigned to 6 6...

Страница 51: ... active state i e a failsafe alarm or trip relay will cause an alarm or trip on loss of control power Contact configuration is opposite to that shown in Figure 2 3 TYPICAL WIRING DIAGRAM on page 2 4 for relays programmed as failsafe when control power is applied SETPOINTS S3 OUTPUT RELAYS SETPOINT MESSAGE TRIP RELAY MESSAGE TRIP OPERATION NON FAILSAFE ALARM RELAY ALARM OPERATION NON FAILSAFE ALARM...

Страница 52: ... when the 239 is not operational due to a loss of control power select 6 operation Other wise choose 121 6 ALARM ACTIVATION If an alarm indication is only required while an alarm is present select 81 7 Once an alarm condition disappears the alarm and associated message automati cally clear To ensure all alarms are acknowledged select 7 Even if an alarm condition is no longer present the alarm rela...

Страница 53: ...SAGE MESSAGE PHASE S C TRIP OFF IMMEDIATE OVERLOAD AUTO RESET O L TRIPS ONCE TC 15 NO Range OFF TRIP AUXILIARY TRIP AUXILIARY Range 1 0 to 11 Step 0 1 x CT Range 10 to 60000 INST Step 10 ms PHASE S C PICKUP 10 x CT PHASE S C DELAY INST ms Range YES NO IMMEDIATE OVERLOAD ALARM OFF IMMEDIATE OVERLOAD PICKUP 1 1 x FLC INHIBIT ON START FOR UNLIMITED s Range ON OFF Range 0 5 to 11 0 Step 0 1 x FLC Rang...

Страница 54: ...ALARM AUXILIARY TRIP ALARM AUX TRIP AUX Range 0 to 250 Step 1 s Range 5 to 100 Step 1 UNDERCURRENT PICKUP 50 FLC UNDERCURRENT DELAY 2 s Range 5 to 100 Step 1 PHASE UNBALANCE TRIP ON PHASE UNBALANCE TRIP PICKUP 20 PHASE UNBALANCE TRIP DELAY 2 s Range ON OFF Range 0 to 60 Step 1 s Range 0 to 6000 UNLIMITED Step 1 s SEE NEXT PAGE SEE NEXT PAGE MESSAGE MESSAGE MESSAGE MESSAGE PHASE UNBALANCE ALARM ON ...

Страница 55: ...5 3 to 100 step 1 GND PRI X 5 RESIDUAL Range MOMENTARY LATCHED OFF Range 0 to 60 0 Step 0 1 s SEE NEXT PAGE SEE NEXT PAGE MESSAGE MESSAGE MESSAGE MESSAGE SEE PREVIOUS PAGE SEE PREVIOUS PAGE Range 0 1 to 30 0 Step 0 1 kΩ THERMISTOR THERMISTOR FUNCTION OFF MESSAGE MESSAGE Range OFF ALARM TRIP AUXILIARY TRIP AUXILIARY Range 10 to 60000 INST Step 10 ms GROUND CURRENT GROUND ALARM MOMENTARY GROUND PRIM...

Страница 56: ... PAGE SEE NEXT PAGE MESSAGE MESSAGE MESSAGE MESSAGE RTD 3 ALARM TEMPERATURE 75 C SEE PREVIOUS PAGE SEE PREVIOUS PAGE RTD SENSOR FAILURE RTD SENSOR FAILURE ALARM OFF MESSAGE MESSAGE Range 0 to 200 C OFF step 1 C 0 to 400 F OFF step 1 F RTD 2 ALARM TEMPERATURE 75 C Range STATOR BEARING OFF Range 100PT 100NI 120NI 10CU Range 0 to 200 C OFF step 1 C 0 to 400 F OFF step 1 F Range 0 to 200 C OFF step 1 ...

Страница 57: ...US PAGE Range 5 to 1500 step 5 A SWITCH INPUTS MESSAGE 4 MESSAGE 3 SWITCH 1 FUNCTION OFF TIME DELAY 0 0 s 2nd PHASE CT PRIMARY 100 A 2nd MOTOR FULL LOAD CURRENT 100 A 2nd OVERLOAD CURVE NO 4 2nd PHASE S C TRIP OFF 2nd PHASE S C PICKUP 10 x CT 2nd PHASE S C DELAY INST ms SEE NEXT PAGE SEE NEXT PAGE Range 1 to 15 step 1 Range 1 to 1500 step 1 4th CT PRIM set 50 A 0 1 to 150 0 step 0 1 4th CT PRIM se...

Страница 58: ...O 4 4th PHASE S C TRIP OFF 4th PHASE S C PICKUP 10 x CT 4th PHASE S C DELAY INST ms END OF PAGE 4 Range 20 alphanumeric characters Range OFF TRIP ALARM AUXILIARY ALTERNATE SETPOINTS DISABLE STARTS Range 0 to 60 0 step 0 1 s Range 5 to 1500 step 5 A Range 1 to 1500 step 1 3rd CT PRIM set 50 A 0 1 to 150 0 step 0 1 3rd CT PRIM set 50 A Range 1 to 15 step 1 Range OFF TRIP AUXILIARY TRIP AUXILIARY Ran...

Страница 59: ...thermal capacity will increase accordingly until the trip relay is activated when 100 of the available thermal capacity has been reached After a trip the thermal memory locks out a reset until the motor has cooled sufficiently TC 15 to allow restarting OVERLOAD TRIP TIME CALCULATION This feature acts as a built in calculator for a quick check of the expected trip time at all the selectable overloa...

Страница 60: ...otor Protection Relay GE Multilin 4 PROGRAMMING 4 PROGRAMMING 4 Figure 4 6 PHASE TIMED OVERLOAD CURVES 0 1 10 100 1000 10000 100000 0 1 1 0 10 0 100 0 CURRENT I Ipu TRIP TIME seconds MULTIPLIER 1 2 3 4 7 9 12 15 ...

Страница 61: ...f a breaker is used as the motor starter interrupting device short circuit protection would generally be enabled as it will normally be capable of handling the fault current Short circuit protection causes the breaker to open quickly to prevent excessive mechanical damage or fire due to any large phase current Com plete protection from phase to phase and phase to ground faults is provided with thi...

Страница 62: ...MEDIATE OVERLOAD PICKUP The immediate overload pickup setpoint is adjustable from 0 5 FLC to 11 0 FLC The alarm relay will activate immediately when the average three phase current exceeds this setpoint value when the motor is running This feature can also operate dur ing start condition using the 1 7 21 67 57 25 setpoint described below INHIBIT ON START FOR If all other conditions are met for an ...

Страница 63: ...ndercurrent pickup was set at 95 and the auxiliary relay was selected with the 81 5 855 17 81 7 21 setpoint the 239 would always sense an undercurrent condition with the auxiliary relay energized Bearing wear could cause the current to increase above 95 A causing the undercur rent condition to disappear If an external alarm was wired across the normally closed auxiliary relay contacts the alarm wo...

Страница 64: ... alarms on lightly loaded motors when a much larger unbalance level will not damage the rotor the single phase detection will automatically be defeated if the average motor current is less than 30 of the full load current IFLC setting Unbalance is calculated as where Iav average phase current Im current in a phase with maximum deviation from Iav IFLC motor full load current setting UNBALANCE ALARM...

Страница 65: ...a ground fault caused by insulation breakdown a motor will usually have to be taken out of service and rewound However an unprotected motor could suffer mechanical damage to the stator slots making repair impossible The fault could also cause the power supply bus to which the faulty motor is connected to trip in order to clear the fault resulting in unneces sary process shutdowns Ground faults can...

Страница 66: ...ming a shock hazard In resistance grounded systems the ground fault trip level must be set below the maximum current limited by the ground resistor or else the relay will not see a large enough ground fault current to cause a trip GROUND TRIP DELAY ON RUN This delay is used when the motor is in a RUNNING condition If the ground current is equal to or above the 5281 35 0 5 75 3 3 83 setpoint value ...

Страница 67: ...ions Heat buildup in the rotor can be very rapid but the large thermal mass of the motor prevents direct detection by temperature sensors embedded in the stator slots soon enough to prevent damage It may take several minutes for the temperature sensor to reach its trip temperature Consequently a predictive model is required to accurately determine heat buildup within the motor The 239 relay uses a...

Страница 68: ... NΩ 6 3527 7 21 7 03 5 785 7 50 6725 7 50 6725 2 5 6 67 1 NΩ 6 3527 7 21 7 03 5 785 7 50 6725 7 50 6725 81 7 21 75 3 The thermistor trip will occur when the thermistor input resistance is greater than or equal to the 6 3527 7 21 7 03 5 785 7 50 6725 7 50 6725 27 5 6 67 1 setting of NΩ The thermistor trip can be reset when the thermistor input resistance becomes less than the 6 3527 7 21 7 03 5 785...

Страница 69: ...e temperature setting Once a motor is running for several hours the actual tempera ture can be monitored and the settings reduced Over time a bearing problem such as a loss of lubricant will show up as an increased temperature Consequently a setting close to the actual operating temperature is desirable providing it does not generate nuisance alarms from ambient temperature changes or load variati...

Страница 70: ...0 19 Ω 40 104 115 5 Ω 123 0 Ω 149 8 Ω 10 58 Ω 50 122 119 4 Ω 129 1 Ω 157 7 Ω 10 97 Ω 60 140 123 2 Ω 135 3 Ω 165 9 Ω 11 35 Ω 70 158 127 1 Ω 141 7 Ω 174 3 Ω 11 74 Ω 80 176 130 9 Ω 148 3 Ω 182 8 Ω 12 12 Ω 90 194 134 7 Ω 154 9 Ω 191 6 Ω 12 51 Ω 100 212 138 5 Ω 161 8 Ω 200 6 Ω 12 90 Ω 110 230 142 3 Ω 168 8 Ω 209 9 Ω 13 28 Ω 120 248 146 1 Ω 176 0 Ω 219 3 Ω 13 67 Ω 130 266 149 8 Ω 183 3 Ω 228 9 Ω 14 06 Ω...

Страница 71: ...the 239 to detect the condi tion If the switches are not used then they should be set to off in 6 3527 7 21 6 7 13876 237 21 6 7 237 21 6 7 81 7 21 OPTION SWITCH 1 2 ALTERNATE SETPOINTS see Section 4 8 MULTI SPEED MOTOR below 4 8 MULTI SPEED MOTOR The 239 has a multi speed motor feature This feature is intended to provide proper protection for a two three or four speed motor where there will be di...

Страница 72: ...ALTERNATE SETPOINTS MAIN OPEN ALTERNATE SETPOINTS X anything but ALTERNATE SETPOINTS MAIN CLOSED ALTERNATE SETPOINTS X anything but ALTERNATE SETPOINTS 2nd X anything but ALTERNATE SETPOINTS OPEN ALTERNATE SETPOINTS MAIN X anything but ALTERNATE SETPOINTS CLOSED ALTERNATE SETPOINTS 3rd OPEN ALTERNATE SETPOINTS OPEN ALTERNATE SETPOINTS MAIN CLOSED ALTERNATE SETPOINTS OPEN ALTERNATE SETPOINTS 2nd OP...

Страница 73: ...GE Multilin 239 Motor Protection Relay 4 35 4 PROGRAMMING 4 PROGRAMMING 4 Figure 4 7 TWO SPEED MOTOR WIRING DIAGRAM ...

Страница 74: ...LED ON SERVICE RELAY LED ON ALL RELAYS ON PICKUP LED ON COMMUNICATE LED ON ALL LEDS ON Range ON OFF Range 5 to 300 UNLIMITED Step 5 min Range 0 to 10000 step 1 A CT PRI SET 50 A 0 to 1000 step 0 1 A CT PRI SET 50 A Range Same as PHASE A CURRENT Range OFF ON Range 5 to 300 UNLIMITED Step 5 min MESSAGE MESSAGE MESSAGE MESSAGE MESSAGE MESSAGE MESSAGE MESSAGE MESSAGE 4 MESSAGE 4 MESSAGE 4 MESSAGE 4 ME...

Страница 75: ...R RESISTANCE 0 Ω SIMULATION OFF SIMULATION ENABLED FOR 15 min RTD 1 TEMPERATURE 0 C RTD 2 TEMPERATURE 0 C RTD 3 TEMPERATURE 0 C GE POWER MANAGEMENT USE ONLY SERVICE PASSCODE 0 MESSAGE MESSAGE MESSAGE MESSAGE MESSAGE 4 MESSAGE 3 Range OFF ON Range 5 to 300 UNLIMITED Step 5 min Range 40 to 200 step 1 C if C 40 to 400 step 1 F if F Range 40 to 200 step 1 C if C 40 to 400 step 1 F if F Range 40 to 200...

Страница 76: ...the 239 is turned off and on time programmed in the 6 7 67 1 7 67 21 85 7 21 6 3527 7 21 25 setpoint has elapsed since the start protection was first disabled When start protection is disabled the following flash message will be displayed for 3 seconds When start protection is re enabled the following flash message will be displayed for 3 seconds DISABLE PROTECTION FOR Select the desired length of...

Страница 77: ... turned on new message is displayed c CURRENT SIMULATION Simulated currents can be forced instead of the actual currents sensed by the external CTs con nected to the 239 This allows verification of all current related relay functions such as timed over load trip It also allows verification that external trip and alarm wiring is responding correctly SIMULATION Enter the required simulation phase an...

Страница 78: ...ill be enabled When the programmed time has elapsed current simulation will turn off If 81 0 7 is selected simulated current will be used until one of the above mentioned conditions is met d ANALOG OUTPUT SIMULATION SIMULATION Enter ON to switch from actual analog output to the programmed simulation value Set this setpoint to OFF after simulation is complete As a safeguard simulation will auto mat...

Страница 79: ...nput as 23 1 or 26 The functionality of this input remains as is with actual input connected EXTERNAL RESET INPUT Enter the status of this switch input as 23 1 or 26 The function ality of this input remains as is with actual input connected OPTION 1 INPUT Enter the status of this switch input as 23 1 or 26 The functionality of this input remains as is with actual input connected OPTION 2 INPUT Ent...

Страница 80: ...emperature values Set this setpoint to 2 after simulation is complete As a safe guard simulation will automatically turn off if power to the 239 is turned off and on time programmed in 6 7 67 1 57 6 08 7 21 6 08 7 21 1 25 setpoint has elapsed since simulation was first enabled When RTD simulation is turned on the following flash message will be displayed for 3 seconds When RTD simulation is turned...

Страница 81: ...NFO Use the keys in the same fashion as for setpoints to move between actual value messages A detailed description of each dis played message in these groups is given in the sections that follow Figure 5 1 ACTUAL VALUES MESSAGE ORGANIZATION ACTUAL ACTUAL MESSAGE MESSAGE ACTUAL VALUES A1 STATUS ACTUAL VALUES A2 METERING ACTUAL VALUES A3 PRODUCT INFO ACTUAL ACTUAL ACTUAL MESSAGE GENERAL LAST TRIP DA...

Страница 82: ...LOAD Iavg 110 FLC UNDERCURRENT ALARM Iavg 30 FLC UNBALANCE ALARM UB 10 GROUND ALARM Ignd 5 A STATOR RTD ALARM RTD 135 C BEARING RTD ALARM RTD 135 C RTD SENSOR FAILURE RTD 1 INTERNAL FAULT ALARM THERMISTOR ALARM THERMISTOR NOT CONNECTED THERMAL CAPACITY USED ALARM COMMUNICATION FAILURE ALARM OPTION SWITCH 1 ALARM OPTION SWITCH 2 ALARM MECHANICAL JAM ALARM BREAKER FAILURE ALARM NO ACTIVE ALARM SEE N...

Страница 83: ...MPS GROUND CURRENT 0 0 A CURRENT UNBALANCE U B 0 STATOR RTD 1 TEMP 130 C BEARING RTD 2 NO RTD BEARING RTD 3 NO RTD SETPOINTS GROUP IN USE MAIN 2nd LAST TRIP NO TRIP 3rd LAST TRIP NO TRIP 4th LAST TRIP NO TRIP 5th LAST TRIP NO TRIP OPTION SWITCH 2 SWITCH STATE OPEN MAIN SETPOINTS GROUP CURRENTLY IN USE Range 0 to 10000 Range 0 to 1000 Range 0 to 100 Range 40 to 200 C 40 to 400 F Range 40 to 200 C 4...

Страница 84: ...MINUTES 10 0 minutes the display will be xxx x SECONDS TIME TO OVERLOAD RESET This message displays the amount of time remaining before an OVERLOAD TRIP is allowed to be reset The time will become 0 when the thermal capacity decreases to 15 CAUSE OF ALARM The appropriate alarm message is displayed when the respective alarm condition is present More than one alarm message can be present at once b L...

Страница 85: ...ip record of the last 5 causes of trip is retained for diagnosing persis tent problems Each new trip is added to the trip record and the oldest fifth cause of trip is erased No trip data is saved in this trip record However by observing repeated trips of the same type an indication of an inherent fault is obtained for maintenance purposes c MOTOR STATISTICS The total motor running time including s...

Страница 86: ...GROUND CURRENT 0 0 AMPS CURRENT UNBALANCE U B 0 MOTOR CAPACITY MOTOR LOAD 0 FULL LOAD THERMAL CAPACITY USED 0 ACTUAL VALUES A3 PRODUCT INFO ACTUAL Range 0 to 10000 if CT SET PRI 50 A 0 to 1000 if CT SET PRI 50 A Range 0 to 100 MESSAGE MESSAGE MESSAGE MESSAGE MESSAGE 4 MESSAGE 4 MESSAGE 4 MESSAGE 3 MESSAGE 3 STATOR RTD 1 TEMPERATURE 80 C BEARING RTD 2 TEMPERATURE 50 C BEARING RTD 3 TEMPERATURE 50 C...

Страница 87: ... caused by loose terminal connections faulty utility supply a blown fuse or a faulty contactor b MOTOR CAPACITY MOTOR LOAD In order to gauge how closely the motor is running to its maximum capacity the motor load is calculated and displayed as Motor Load Iav IFLC Iav is the average 3 phase cur rent IFLC is the rated motor full load current entered in setpoint 6 6 67 0 6 783 02725 7 A value greater...

Страница 88: ...se in temperature Bearing temperatures vary with ambient conditions greasing wear and loading A significant increase in bearing temperature may indicate a prob lem that needs investigation Temperatures can be viewed in C or F by selecting the appropri ate setpoint in 6 6 783 35 5 1 6 7 03 5 785 63 1 THERMISTOR Thermistors typically installed in motors for temperature detection are nonlinear device...

Страница 89: ...n code for which the manual is written There may be differences in the product and manual if the revision codes do not match BOOT PROGRAM VERSION This identifies the firmware installed internally in the PROM mem ory of the 239 This does not affect the functionality of the 239 ACTUAL VALUES A3 PRODUCT INFO ACTUAL MESSAGE FIRMWARE REVISIONS MESSAGE MAIN PROGRAM VER 2 4 Nov 24 1999 BOOT PROGRAM VER 2...

Страница 90: ...5 In this case the message will display all the 02 180 5s separated by a comma i e 501 502 503 SERIAL NUMBER Each 239 shipped from the factory has a unique serial number for identifica tion purposes The serial number displayed in this message will match the serial number found on the product label located on the back of the 239 HARDWARE REVISION This message identifies the internal hardware revisi...

Страница 91: ... a computer and save settings to a file If a 239 is connected to a serial port on a computer and communications is enabled the 239 can be pro grammed from the Setpoint screens In addition measured values status and trip messages can be displayed with the Actual screens 6 2 HARDWARE CONFIGURATION The 239 communications is setup as shown in the figure below Figure 6 1 TYPICAL COMMUNICATIONS SETUP 81...

Страница 92: ...he two versions are identical 239 MOTOR PROTECTION RELAY Instruction Manual Firmware Revision 2 6x 239PC Software 2 6x or newer Manual P N 1601 0067 D9 Copyright 2002 GE Multilin GE Multilin 215 Anderson Avenue Markham Ontario Canada L6E 1B3 Tel 905 294 6222 Fax 905 201 2098 Internet http www GEindustrial com multilin Manufactured under an ISO9002 Registered system g GE Power Management TRIP ALARM...

Страница 93: ...rt Windows 2 Insert the GE Multilin Products CD into the appropriate drive alternately you can go to the GE Multilin website at www GEindustrial com multilin to continue the installation the steps are roughly the same 3 The following window will be displayed by your default web browser once the CD drawer with the Product CD is closed 5 The browser will display the GE Multilin product list in alpha...

Страница 94: ... following window will appear 8 Verify that you wish to install 239PC by clicking Yes 9 Click on CONTINUE WITH 239 PC VERSION 2 50 INSTALLATION to continue installing the PC software directly to your hard drive If you wish to make a 1 44MB floppy disk containing the 239PC soft ware click on Start Copying 239 Softw are PC Program 239PC V ersion 2 51 exe 4M R elay Firm w are 2 51 Firm w are serial b...

Страница 95: ... destination directory is correct 12 The 239PC install program will ask you to choose between Typical Compact and Custom setup Typical is fine for almost all cases Choose the desired type of setup preferred and click Next to continue the installation process 13 You will be prompted to choose a folder name to place the 239PC icon Select a folder and click Next to continue 14 Click on Finish to comp...

Страница 96: ...6 6 239 Motor Protection Relay GE Multilin 6 239PC SOFTWARE 6 239PC SOFTWARE 6 6 5 239PC MENU STRUCTURE ...

Страница 97: ... icon in the GE Multilin folder or alternate folder con taining the 239PC icon or from the Start menu 2 Once 239PC starts to execute it will attempt to communicate with the relay If communication is established successfully the screen and LEDs on the relay graphic shown in the 239PC window will display the same information as the actual relay ...

Страница 98: ...tpoint 8 Set Parity to match the relay parity setpoint 9 If using the GE Multilin F485 converter leave the Control Type setting as is 10 Set Startup Mode to Communicate with relay 11 Click the ON button to communicate with the relay and 239PC will notify when communications have been established with the relay If it fails to communicate check the following Ensure that the settings above match the ...

Страница 99: ...ear Select the desired information to be printed in this case Setpoints All and then click OK 5 Select Print from the File menu 6 Ensure the printer selected is setup and on line and click OK to print setpoints b STEP 2 LOADING NEW FIRMWARE INTO THE 239 1 Select Upgrade Firmware from the Communication menu 2 The following window will appear Select Yes to proceed or No to abort the process 3 The fi...

Страница 100: ...6 The following dialog box will appear select Yes to proceed No to load a different firmware file Cancel to abort the process 64 D 250 C4 000 Modification number 000 none For GE Power Management use only Product firmware revision e g 2 50 On the 239 this number is found in Actual Values page A3 under FIRMWARE VERSION MAIN PROGRAM VER Required product hardware revision This letter must match the fi...

Страница 101: ...ntire down load process takes approximately three minutes 8 The following dialog box will appear when the firmware has been successfully loaded into the relay 9 Carefully read any notes indicated in the box and click on OK to return to the main screen If the relay does not communicate with the 239PC program ensure the following setpoints agree with the 239PC settings shown in the COMMUNICATION COM...

Страница 102: ... through the Setpoints menu For example to change the value for setpoint 6 6 67 0 6 783 02725 7 29 5 2 3 83 1 7 choose the System Setup item from the Setpoints menu This launches the 6 732 17 6 67 0 6 783 dialog box Each subgroup in this case CT Inputs and Motor Data are represented by folder tabs Click the Motor Data tab to list the 6 6 67 0 6 783 02725 7 setpoints To change the 29 5 2 3 83 1 7 s...

Страница 103: ...low the steps outlined in Section 6 7c STEP 3 LOADING SAVED SETPOINTS on page 6 11 e GETTING HELP The complete instruction manual including diagrams such as wiring is available through on line Help Click on the Help menu and select the desired topic Consult Help for an explanation of any fea ture specifications wiring installation etc Context sensitive help can be activated by clicking on the desi...

Страница 104: ...6 14 239 Motor Protection Relay GE Multilin 6 239PC SOFTWARE 6 239PC SOFTWARE 6 ...

Страница 105: ...85 link data flow is bi direc tional and half duplex That is data is never transmitted and received at the same time RS485 lines should be connected in a daisy chain configuration avoid star connections with a terminating net work installed at each end of the link i e at the master end and at the slave farthest from the master The terminating network should consist of a 120 Ω resistor in series wi...

Страница 106: ... 239 implements some of these functions See section 3 for details of the supported function codes In a master request transmission the FUNCTION CODE tells the slave what action to perform In a slave response transmission if the FUNCTION CODE sent from the slave is the same as the FUNCTION CODE sent from the master then the slave performed the function as requested If the high order bit of the FUNC...

Страница 107: ...will contain the CRC value to be transmitted Note that this algorithm requires the characteristic polynomial to be reverse bit ordered The MSbit of the characteristic polynomial is dropped since it does not affect the value of the remain der The following symbols are used in the algorithm data transfer A16 bit working register AL low order byte of A AH high order byte of A CRC 16 bit CRC 16 value ...

Страница 108: ...These commands can be used to read any Setpoint holding registers or Actual Value input reg isters Holding and input registers are 16 bit two byte values transmitted low order byte first Thus all 239 Setpoints and Actual Values are sent as two bytes The maximum number of registers that can be read in one transmission is 125 Function codes 03 and 04 are configured to read setpoints or actual values...

Страница 109: ...rea of the memory map correspond to operation code for function code 05 The operation commands can also be initiated by writing to the Commands area of the memory map using function code 16 Refer to Section 7 14 16 PERFORMING COMMANDS on page 7 10 for complete details a MESSAGE FORMAT AND EXAMPLE Reset 239 operation code 1 Master Transmission Bytes Example hex SLAVE ADDRESS 1 byte 11 message for s...

Страница 110: ...1020 After the transmission in this example is complete Setpoints address 1020 will contain the value 0064 Master Transmission Bytes Example hex SLAVE ADDRESS 1 byte 11 message for slave 11 FUNCTION CODE 1 byte 06 store single setpoint DATA STARTING ADDRESS 2 bytes 10 Setpoint address 1020 20 DATA 2 bytes 00 data for address 1020 64 CRC 2 bytes 8F CRC calculated by the master BB Slave Response Byt...

Страница 111: ... slave device 239 General Status Byte LSBit B0 Alarm condition 1 B1 Trip condition 1 B2 Internal fault 1 B3 Not used B4 Not used B5 Not used B6 Not used MSBit B7 Not used a MESSAGE FORMAT AND EXAMPLE Request status from slave 11 Master Transmission Bytes Example hex SLAVE ADDRESS 1 byte 11 message for slave 11 FUNCTION CODE 1 byte 07 read device status CRC 2 bytes 8F CRC calculated by the master B...

Страница 112: ...E Loopback test from slave 11 Master Transmission Bytes Example hex SLAVE ADDRESS 1 byte 11 message for slave 11 FUNCTION CODE 1 byte 08 loopback test DIAG CODE 2 bytes 00 must be 00 00 00 DATA 2 bytes 00 must be 00 00 00 CRC 2 bytes E0 CRC calculated by the master 0B Slave Response Bytes Example hex SLAVE ADDRESS 1 byte 11 message from slave 11 FUNCTION CODE 1 byte 08 loopback test DIAG CODE 2 by...

Страница 113: ...RC a MESSAGE FORMAT AND EXAMPLE Request slave 11 to store the value 0096 to Setpoint addresses 1028 and 1029 After the transmis sion in this example is complete 239 slave 11 will have the following Setpoints information stored Address Data 1028 0096 1029 0096 Master Transmission Bytes Example hex SLAVE ADDRESS 1 byte 11 message for slave 11 FUNCTION CODE 1 byte 10 store Setpoints DATA STARTING ADD...

Страница 114: ...ommands shown in the memory map The Command Data registers must be written with valid data if the command operation requires data The selected command will execute immediately upon receipt of a valid transmission a MESSAGE FORMAT AND EXAMPLE Master Transmission Bytes Example hex SLAVE ADDRESS 1 byte 11 message for slave 11 FUNCTION CODE 1 byte 10 store Setpoints DATA STARTING ADDRESS 2 bytes 00 Se...

Страница 115: ... within range for the selected data address 7 16 MEMORY MAP INFORMATION The data stored in the 239 is grouped as Setpoints and Actual Values Setpoints can be read and written by a master computer Actual Values can be read only All Setpoints and Actual Values are stored as two byte values That is each register address is the address of a two byte value Addresses are listed in hexadecimal Data value...

Страница 116: ... to be read from a 239 their addresses may be remapped as follows 1 Write 0229H to address 0180H User Definable Index 0000 using function code 06 or 16 2 Write 0240H to address 0181H User Definable Index 0001 using function code 06 or 16 A read function code 03 or 04 of registers 0100H User Definable Register 0000 and 0101H User Definable Register 0001 will return the Phase A Current and RTD 1 Cel...

Страница 117: ... Number 2 F1 mod file number 2 0008 Modification File Number 3 F1 mod file number 3 0009 Modification File Number 4 F1 mod file number 4 000A Modification File Number 5 F1 mod file number 5 000B Main Version Month Day F40 000C Main Version Year F41 000D Supervisor Revision Month Day F40 000E Supervisor Revision Year F41 000F Boot Revision Month Day F40 0010 Boot Revision Year F41 0011 Reserved to ...

Страница 118: ...35 1 F8 0 0088 Command Data 7 0 65535 1 F8 0 0089 Command Data 8 0 65535 1 F8 0 008A Command Data 9 0 65535 1 F8 0 008B Command Data 10 0 65535 1 F8 0 008C Command Data 11 0 65535 1 F8 0 008D Reserved 008E Reserved 008F Reserved 0090 Reserved to 00FF Reserved User Definable Register Input Registers Addresses 0100 to 017F 0100 USER DEFINABLE REGISTERS User Definable Data 0000 0101 User Definable Da...

Страница 119: ...le Data 0006 1 F1 0 0187 Register address for User Definable Data 0007 1 F1 0 0188 Register address for User Definable Data 0008 1 F1 0 0189 Register address for User Definable Data 0009 1 F1 0 018A Register address for User Definable Data 000A 1 F1 0 to 01F7 Register address for User Definable Data 0077 1 F1 0 01F8 Reserved to 01FF Reserved Actual Values Input Registers Addresses 0200 to 027F 020...

Страница 120: ...A 0218 Pre Trip RTD 2 Temp RTD Option C F2 N A 0219 Pre Trip RTD 2 Temp RTD Option F F2 N A 021A Pre Trip RTD 3 Temp RTD Option C F2 N A 021B Pre Trip RTD 3 Temp RTD Option F F2 N A 021C Cause of 2nd Last Trip F5 N A 021D Cause of 3rd Last Trip F5 N A 021E Cause of 4th Last Trip F5 N A 021F Cause of 5th Last Trip F5 N A 0220 Setpoints Group In Use 0 3 F113 N A 0221 Reserved 0222 SWITCH Currently S...

Страница 121: ... 0 1xmin F1 023D Reserved 023E Reserved 023F Reserved 0240 TEMPERATURE RTD 1 Temperature RTD Option C F2 N A 0241 RTD 1 Temperature RTD Option F F2 N A 0242 RTD 2 Temperature RTD Option C F2 N A 0243 RTD 2 Temperature RTD Option F F2 N A 0244 RTD 3 Temperature RTD Option C F2 N A 0245 RTD 3 Temperature RTD Option F F2 N A 0246 Thermistor F6 N A 0247 RTD Sensor Failure Cause RTD Option F33 N A 0248...

Страница 122: ...II F8 N A 0264 Message Buffer characters 9 and 10 ASCII F8 N A 0265 Message Buffer characters 11 and 12 ASCII F8 N A 0266 Message Buffer characters 13 and 14 ASCII F8 N A 0267 Message Buffer characters 15 and 16 ASCII F8 N A 0268 Message Buffer characters 17 and 18 ASCII F8 N A 0269 Message Buffer characters 19 and 20 ASCII F8 N A 026A Message Buffer characters 21 and 22 ASCII F8 N A 026B Message ...

Страница 123: ...nt Values Holding Registers Addresses 1000 to 11EF 1000 PREFERENCES Temp Display Units RTD Option 1 F9 0 CELSIUS 1001 Default Message Time 1 51 1 min x 0 1 F1 10 1 0 min 1002 Default Message Brightness 0 100 20 F1 60 1003 Block Keypad Trip Reset 0 1 1 F14 0 NO 1004 Overload Pickup Display Enable 0 1 1 F14 1 YES 1005 Reserved 1006 Reserved 1007 Reserved 1008 ANALOG OUTPUT Analog Output Type AN Opti...

Страница 124: ... A F1 0 OFF 1021 Ground Sensing 0 3 1 F15 0 OFF 1022 Ground CT Primary 5 1500 5 A F1 100 1023 Nominal Frequency 50 60 10 Hz F1 60 1024 Reserved 1025 Reserved 1026 Reserved 1027 Reserved 1028 MOTOR DATA Motor Full Load Current 0 1500 1 F1 0 OFF 1029 Overload Pickup Inhibit 100 500 5 0 01xFLC F1 100 1 00 102A Locked Rotor Current 5 110 1 0 1 xFLC F1 60 6 0 xFLC 102B Safe Stall Time Cold 10 6000 1 0 ...

Страница 125: ...ed 1047 Reserved 1048 AUXILIARY RELAY Auxiliary Operation 0 1 1 F16 0 NON FAILSAFE 1049 Auxiliary Activation 0 1 1 F17 0 UNLATCHED 104A Auxiliary Function 0 2 1 F18 0 NORMAL 104B Reserved 104C Reserved 104D Reserved 104E Reserved 104F Reserved 1050 PHASE TIMED O L Phase Timed O L Curve No 1 15 1 F1 4 1051 Phase Timed O L Lockout Time 1 5000 1 min F1 30 min 1052 Overload Level to Calculate Trip Tim...

Страница 126: ...erved 1067 Reserved 1068 MECHANICAL JAM Mechanical Jam Function 0 4 1 F23 0 OFF 1069 Mechanical Jam Pickup 1 100 1 0 1 xFLC F1 2 0 x FLC 106A Mechanical Jam Delay 0 250 1 s F1 2 s 106B Inhibit On Start For 0 6001 1 s F13 6001 UNLIMITED 106C Reserved 106D Reserved 106E Reserved 106F Reserved 1070 UNDER CURRENT Undercurrent Function 0 5 1 F21 0 OFF 1071 Undercurrent Pickup 5 100 1 0 01xF LC F1 0 50 ...

Страница 127: ...Pickup 50 0 025 CT 5 1500 1 0 01 x A F1 1000 10 00 A 108B Ground Trip Delay On Run 0 60000 10 ms F1 500 ms 108C Ground Alarm 0 2 1 F22 1 MOMENTARY 108D Ground Primary Alarm Level 5A CT 3 100 1 of CT F1 10 108E Ground Primary Alarm Level 50 0 025 CT 5 1500 1 0 01 x A F1 500 5 00 A 108F Ground Alarm Delay On Run 0 600 1 0 1 x s F1 50 5 0 s 1090 Ground Trip Delay On Start 0 60000 10 ms F1 500 ms 1091...

Страница 128: ...401 1 F F1 194 F 10AC RTD 2 Alarm Temp RTD Option 0 201 1 C F1 75 C 10AD RTD 2 Alarm Temp RTD Option 0 401 1 F F1 167 F 10AE Reserved 10AF Reserved 10B0 RTD 3 RTD 3 Application RTD Option 0 2 1 F24 2 BEARING 10B1 RTD 3 Type RTD Option 0 3 1 F25 0 100 PT 10B2 RTD 3 Trip Temp RTD Option 0 201 1 C F1 90 C 10B3 RTD 3 Trip Temp RTD Option 0 401 1 F F1 194 F 10B4 RTD 3 Alarm Temp RTD Option 0 201 1 C F1...

Страница 129: ...se A Current 0 10000 1 F1 0 10D2 Phase B Current 0 10000 1 F1 0 10D3 Phase C Current 0 10000 1 F1 0 10D4 Ground Current 0 5000 1 0 1 x A F1 0 10D5 Current Simulation Period 5 305 5 min F1 3 15 min 10D6 Reserved 10D7 Reserved 10D8 ANALOG SIMULATION Simulation AN Option 0 1 1 F20 0 OFF 10D9 Force Analog Output AN Option 0 1201 1 0 1 F1 1201 OFF 10DA Analog Output Simulation Period AN Option 5 305 5 ...

Страница 130: ...CII F8 10FD Flash message characters 11 and 12 32 127 1 ASCII F8 10FE Flash message characters 13 and 14 32 127 1 ASCII F8 10FF Flash message characters 15 and 16 32 127 1 ASCII F8 1100 Flash message characters 17 and 18 32 127 1 ASCII F8 1101 Flash message characters 19 and 20 32 127 1 ASCII F8 1102 Flash message characters 21 and 22 32 127 1 ASCII F8 1103 Flash message characters 23 and 24 32 12...

Страница 131: ...II F8 22 1119 Programmable message characters 19 20 32 127 1 ASCII F8 2 111A Programmable message characters 21 22 32 127 1 ASCII F8 GE 111B Programmable message characters 23 24 32 127 1 ASCII F8 in 111C Programmable message characters 25 26 32 127 1 ASCII F8 du 111D Programmable message characters 27 28 32 127 1 ASCII F8 st 111E Programmable message characters 29 30 32 127 1 ASCII F8 ri 111F Pro...

Страница 132: ...NFIG Disable Start Protection 0 1 1 F14 0 NO 1140 Start Protection Disable Period 5 305 5 min F1 3 15 min 1141 Disable Statistics Logging 0 1 1 F14 0 NO 1142 Reserved to 118F Reserved 1190 OPTION SWITCH 1 Option Switch 1 characters 1 and 2 32 127 1 ASCII F8 OP 1191 Option Switch 1 characters 3 and 4 32 127 1 ASCII F8 TI 1192 Option Switch 1 characters 5 and 6 32 127 1 ASCII F8 ON 1193 Option Switc...

Страница 133: ...aracters 15 and 16 32 127 1 ASCII F8 2 11B8 Option Switch 2 characters 17 and 18 32 127 1 ASCII F8 11B9 Option Switch 2 characters 19 and 20 32 127 1 ASCII F8 11BA 3rd Phase CT Primary 5 1500 5 A F1 100 A 11BB 3rd Motor Full Load Current 1 1500 1 F1 100 A 11BC 3rd Phase Timed O L Curve No 1 15 1 F1 4 11BD 3rd Phase S C Trip 0 3 1 F19 0 OFF 11BE 3rd Phase S C Pickup 10 110 1 0 1 xCT F1 100 10 0 xCT...

Страница 134: ...ues or Setpoints address Minimum Setpoint value represents INST 1 Display value Modbus Register Value 40 2 Display value 0 0 600 0 sec 10 0 6553 5 min 3 Maximum Setpoint value represents UNLIMITED 11CC Reserved 11CD Reserved 11CE Reserved 11CF Reserved to 11EF Reserved Table 7 1 239 MEMORY MAP Sheet 18 of 18 REG ADDR HEX GROUP DESCRIPTION REGISTER VALUE RANGE STEP VALUE UNITS SCALE FOR MAT FACTORY...

Страница 135: ... 0 Not Connected 1 Cold 2 Hot F7 UNSIGNED INTEGER CURRENT KEY PRESS FFFF 0000 no key FE02 RESET FE01 STORE FE08 SETPOINT FE04 ACTUAL FD08 MESSAGE UP FD02 MESSAGE DOWN FD01 MESSAGE LEFT FD04 MESSAGE RIGHT FB01 VALUE UP FB02 VALUE DOWN F8 TWO ASCII CHARACTERS FFFF 32 127 ASCII Character 7F00 32 127 ASCII Character 007F F9 UNSIGNED INTEGER TEMP UNIT RTD Option FFFF 0 Celsius 1 Fahrenheit F10 ANALOG O...

Страница 136: ... Latched F23 THERMISTOR MECHANICAL JAM FFFF 0 Off Table 7 2 DATA FORMATS Sheet 3 of 11 CODE DESCRIPTION BITMASK 1 Trip 2 Alarm 3 Auxiliary 4 Trip Auxiliary F24 RTD APPLICATION RTD Option FFFF 0 Off 1 Stator 2 Bearing F25 RTD TYPE RTD Option FFFF 0 100 PT 1 100 NI 2 120 NI 3 10 CU F26 OPTION SWITCH FUNCTION FFFF 0 Off 1 Trip 2 Alarm 3 Auxiliary 4 Alternate Setpoints 5 Disable Starts F27 COMMAND FFF...

Страница 137: ...2 0002 RTD 3 0004 F35 PARITY TYPE FFFF NONE 0000 EVEN 0001 ODD 0002 Table 7 2 DATA FORMATS Sheet 5 of 11 CODE DESCRIPTION BITMASK F36 SIMULATED SWITCH STATE FFFF 0 OPEN 1 CLOSED F38 GROUND TRIP FFFF 0 OFF 1 TRIP 2 AUXILIARY 3 TRIP AUXILIARY F39 TIME TO OVERLOAD TRIP UNITS AND SCALE FFFF 0 0 01 x seconds 1 0 1 x seconds 2 seconds 3 minutes F40 DATE MONTH DAY FFFF Month 1 January 2 February 3 March ...

Страница 138: ...ication Failure 0200 Internal Fault Alarm 0400 Thermal Capacity Alarm 0800 Option Switch 1 Alarm 1000 Table 7 2 DATA FORMATS Sheet 7 of 11 CODE DESCRIPTION BITMASK Option Switch 2 Alarm 2000 Breaker Failure Alarm 4000 Mechanical Jam Alarm 8000 F103 TRIP FLAGS FFFF Ground 0001 Overload 0002 Unbalance 0004 Thermistor 0008 Mechanical Jam 0010 Short Circuit 0020 Stator RTD RTD Option 0040 Bearing RTD ...

Страница 139: ...ot Used 0400 Not Used 0800 Not Used 1000 Not Used 2000 Not Used 4000 Not Used 8000 F107 RELAYS 0 DE ENERGIZED 1 ENERGIZED FFFF Trip Relay 0001 Alarm Relay 0002 Auxiliary Relay 0004 Table 7 2 DATA FORMATS Sheet 9 of 11 CODE DESCRIPTION BITMASK Service Relay 0008 Reserved 0010 Not Used 0020 Not Used 0040 Not Used 0080 Not Used 0100 Not Used 0200 Not Used 0400 Not Used 0800 Not Used 1000 Not Used 200...

Страница 140: ...er 12 December F110 Display Units FFFF 0 Seconds 1 Minutes F113 Currently Selected Setpoints Group FFFF 0 Main Group 1 2nd Group 2 3rd Group 3 4th Group F114 Ground Current Scale Factor FFFF 10 RESIDUAL or X 5 GROUND SENS ING 100 OFF or 50 0 025 GROUND SENSING Table 7 2 DATA FORMATS Sheet 11 of 11 CODE DESCRIPTION BITMASK ...

Страница 141: ...n of the entire relay system except the phase and ground CTs can be checked by applying input signals to the 239 from a secondary injection test set as described in the following sections 8 2 SECONDARY INJECTION TESTING Setup the secondary injection test as shown in the figure below to perform the tests described in the following sections Tests should be performed to verify the correct operation a...

Страница 142: ...ings stated in the table 3 Alter the setup to inject current into the 1 A input of each phase and repeat the above step with current settings shown in the table below Table 8 1 PHASE CURRENT ACCURACY TEST 5 A INPUT INJECTED CURRENT EXPECTED READING IN EACH PHASE ACTUAL PHASE A READING A ACTUAL PHASE B READING A ACTUAL PHASE C READING A 0 5 A 10 A 1 0 A 20 A 3 5 A 70 A 5 0 A 100 A 10 0 A 200 A Tabl...

Страница 143: ...apacity used is 98 to 100 The thermal capacity value will start decreasing as soon as the overload condition is removed and therefore may vary depending upon how quickly after the overload trip the 0 7 5 1 02725 3 7 message is viewed After viewing 0 7 5 1 02725 3 7 momentarily short the Emergency Restart terminals and press the reset key to reset the unit 8 5 PHASE UNBALANCE ALARM 1 Alter the foll...

Страница 144: ...phase C current a EXAMPLE CALCULATING THE PERCENT OF UNBALANCE Find unbalance given the following information The average of the three phase currents is Now since Iav IFLC we have unbalance given by Therefore the unbalance in this case is 18 Table 8 3 PHASE UNBALANCE ALARM TEST INJECTED CURRENT A ACTUAL DISPLAY READING A PHASE A PHASE B PHASE C PRIMARY SECONDARY 5A Ia 73 A 3 65 A Ib 100 A 5 A Ic 1...

Страница 145: ... 5281 855 17 5281 50 020 17 5 6 3527 7 21 5281 855 17 5281 35 0 5 50 3 83 2 While viewing 0 7 5 1 855 17 5281 855 17 begin injecting current into the 5A ground input The ALARM LED will become lit and the alarm relay will change state at one half the trip setting i e at a displayed Ground Fault current of 40 A 40 of 3 6 7 35 0 5 setting 3 With the display showing GROUND ALARM message change the dis...

Страница 146: ...87387 6 08 7 21 1 2 287387 25 72 force the out put to various levels shown in the table below and view the results on the DC ammeter Verify the meter results with expected results shown in the table below If the 239 is turned off or 15 min utes have expired since 6 7 67 1 1 2 287387 6 08 7 21 6 08 7 21 was turned on this setpoint will automatically turn off to disable analog output simulation This...

Страница 147: ... 03 5 785 7 5 0 6725 2 5 6 67 1 setpoint 8 11 RTD MEASUREMENT 1 Alter the following setpoints 6 3527 7 21 7 03 5 785 57 57 7 3 37 6 3527 7 21 7 03 5 785 57 57 33 7 21 5 1 6 3527 7 21 7 03 5 785 57 57 75 3 7 03 5 785 2 6 3527 7 21 7 03 5 785 57 57 50 7 03 5 785 2 2 To verify RTD 1 readings ensure a 10 turn 200 Ω variable resistor is connected to terminals 49 50 and 51 as shown in Figure 8 1 SECONDA...

Страница 148: ...lready accumulated Larger overloads representing short circuits or mechanical jams can be simulated by changing the 6 6 67 0 6 783 02725 7 02725 8 2 855 17 setpoint to a value much lower than the actual motor phase current 3 Unbalance trip or alarm conditions can be simulated by changing the Unbalance Trip or Alarm Level setpoints to values below the actual unbalance present at the motor terminals...

Страница 149: ...GE Multilin 239 Motor Protection Relay 8 9 8 TESTING 8 TESTING 8 Figure 8 2 239 HARDWARE BLOCK DIAGRAM ...

Страница 150: ...8 10 239 Motor Protection Relay GE Multilin 8 TESTING 8 TESTING 8 ...

Страница 151: ...it is returned with all transportation charges prepaid to an authorized service cen tre or the factory Repairs or replacement under warranty will be made without charge Warranty shall not apply to any relay which has been subject to misuse negli gence accident incorrect installation or use not in accordance with instructions nor any unit that has been altered outside a GE Multilin authorized facto...

Страница 152: ...A 2 239 Motor Protection Relay GE Multilin A 1 239 WARRANTY APPENDIX A A ...

Страница 153: ...T OVERLOAD TRIPS 4 21 AUXILIARY ACTIVATION 4 14 AUXILIARY FUNCTION 4 14 AUXILIARY OPERATION 4 14 AUXILIARY RELAY 4 14 B BAUD RATE 4 6 BLOCK DIAGRAM 8 9 BLOCK KEYPAD TRIP RESETS 4 5 BREAKER FAILURE 4 26 BRIGHTNESS 4 5 C CALIBRATION DATE 5 10 CAUSE OF LAST TRIP 5 4 CLEAR PRE TRIP DATA 4 6 CLEAR STATISTICS DATA 4 6 COMMUNICATIONS baud rate 4 6 data format 7 1 electrical interface 7 1 error checking 7...

Страница 154: ...KOUT TIME 4 21 M MANUAL REVISIONS 2 2 MANUFACTURE DATE 5 10 MECHANICAL JAM 4 24 MEMORY MAP 7 11 7 13 MEMORY MAP DATA FORMATS 7 31 MEMORY MAP INFORMATION 7 11 MESSAGE KEY OPERATION 3 5 MODBUS commands 7 4 function code 05 execute operation 7 5 function code 06 store single setpoint 7 6 function code 07 read device status 7 7 function code 08 loopback test 7 8 function code 16 performing commands 7 ...

Страница 155: ...tor RTD 1 3 5 5 temperature 5 8 testing 8 7 S S1 239 SETUP 4 3 S2 SYSTEM SETUP 4 9 S3 OUTPUT RELAYS 4 13 S4 PROTECTION 4 15 S5 TESTING 4 36 SAFE STALL TIME 4 11 SAVING SETPOINT FILES 6 13 SECONDARY INJECTION TESTING 8 1 SELECT MOD TO ENABLE 4 7 SELECT OPTIONS TO ENABLE 4 7 SELECTING ALTERNATE SETPOINTS 4 34 SERIAL COMMS FAILURE ALARM 4 6 SERIAL NUMBER 5 10 SERIAL PORT 2 11 SERVICE routine maintena...

Страница 156: ... 6 Thermistor alarm test 8 7 THERMAL CAPACITY USED 5 7 calculating 4 12 THERMAL CAPACITY USED ALARM 4 26 THERMISTOR 4 29 input temperature 5 8 THERMISTOR ALARM TEST 8 7 THERMISTOR INPUT 2 9 programming 4 29 testing 8 7 THERMISTOR SIMULATION 4 41 TIME TO OVERLOAD RESET 5 4 TIME TO TRIP 5 4 TIMED OVERLOAD CURVES 4 21 TIMING 7 4 TRIP 2nd last trip 5 5 cause of last trip 5 4 record 5 5 TRIP IN PROGRES...

Страница 157: ...GE Multilin 239 Motor Protection Relay NOTES ...

Страница 158: ...offices Technical Support Complete contact information is available Instruction Manuals Manuals for many products are now available online GE Product Software The latest working versions of product software Technical Drawings Many technical drawings are available in either AutoCAD CorelDRAW or PDF formats Order Codes Order codes for many products can be down loaded and printed Technical Publicatio...

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