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Automatic Transfer Switches

Controls:

Decision-Maker

MPAC 750

Transfer Switch Model:

KSS

TP-6865 4/14a

Operation

Содержание Decision-Maker MPAC 750

Страница 1: ...Automatic Transfer Switches Controls Decision Makerr MPAC 750 Transfer Switch Model KSS TP 6865 4 14a Operation ...

Страница 2: ......

Страница 3: ... 1 8 Controller Reset 14 1 8 1 Reboot 14 1 8 2 Reset to Default Settings 14 Section 2 Sequence of Operation 15 2 1 Controller Power up Reset 15 2 2 Sequence of Operation 15 2 2 1 Source N Loss and Return 15 2 2 2 Exerciser Operation 15 2 2 3 Test Sequence 16 Section 3 Settings 17 3 1 Introduction 17 3 2 System Setup 17 3 3 System Parameters 17 3 3 1 Transition Type Standard 17 3 3 2 Commit to Tran...

Страница 4: ...Generator Set Exercise 32 5 2 2 Monthly Automatic Control System Test 32 5 3 Inspection and Service 33 5 3 1 General Inspection 33 5 3 2 SPD Inspection 33 5 3 3 Other Inspections and Service 33 5 4 Service Schedule 34 Section 6 Accessories 35 6 1 Introduction 35 6 2 Controller Disconnect Switch 35 6 3 Ethernet Board 36 6 4 Programmable Exerciser 36 6 5 Heater 37 6 6 Surge Protection SPD 38 6 6 1 S...

Страница 5: ...ING Disabling the generator set Accidental starting can cause severe injury or death Before working on the generator set or connected equipment disable the generator set as follows 1 Move the generator set master switch to the OFF position 2 Disconnect the power to the battery charger 3 Remove the battery cables negative lead first Reconnect the negative lead last when reconnecting the battery Fol...

Страница 6: ...ck deenergize the normal power source before making any line or auxiliary connections Servicing the transfer switch controls and accessories within the enclosure Hazardous voltage can cause severe injury or death Disconnect the transfer switch controls at the inline connector to deenergize the circuit boards and logic circuitry but allow the transfer switch to continue to supply power to the load ...

Страница 7: ... Obtain service from an authorized service distributor dealer to keep equipment in top condition Read this manual and carefully follow all procedures and safety precautions to ensure proper equipment operation and to avoid bodily injury Read and follow the Safety Precautions and Instructions section at the beginning of this manual Keep this manual with the equipment for future reference List of Re...

Страница 8: ...rope Middle East Africa EMEA Kohler Power Systems Netherlands B V Kristallaan 1 4761 ZC Zevenbergen The Netherlands Phone 31 168 331630 Fax 31 168 331631 Asia Pacific Power Systems Asia Pacific Regional Office Singapore Republic of Singapore Phone 65 6264 6422 Fax 65 6264 6455 China North China Regional Office Beijing Phone 86 10 6518 7950 86 10 6518 7951 86 10 6518 7952 Fax 86 10 6518 7955 East C...

Страница 9: ...d Source Eis the standby generator set The engine start contacts are associated with Source E The Preferred Source is the source that will be used if both sources are available With the MPAC 750 controller the preferred source is Source N The standby source is Source E 1 3 User Interface Panel The user interface panelislocated on the transfer switch door Figure 1 1 shows the user interface pushbut...

Страница 10: ...c 2 sec Flash 0 5 sec 2 sec Figure 1 3 Test and Exercise Indication 1 4 Test Use the Test button to D Start and run the generator set unloaded test D Simulate a Source N failure resulting in a transfer to Source E loaded test If the emergency source is lost during a system test the test is terminated If the contactor is in the standby position it transfers immediately to the preferred position For...

Страница 11: ...fer to Section 2 2 3 for a more detailed description of the test sequence of operation Note If the standby source fails during a loaded test the ATS will immediately attempt to transfer to the preferred source Automatic Operation Test Procedure 1 Check the controller LED indicators to verify that the Source N Position and Source N Available indicators are lit 2 Verify that the generator set master...

Страница 12: ...d runs the generator set for 20 minutes without transferring the load Press and hold the exercise button for 3 5 seconds to start an unloaded exercise During an unloaded exercise the Source E available LED flashes 0 5 seconds on and 2 seconds off 1 6 3 Loaded Exercise A loaded exercise starts the generator set and transfers the load from the normal source to Source E Press and hold the Exercise bu...

Страница 13: ...e controller and normal ATS operation continues Condition Type Description Failure to Acquire Standby Source Warning The source voltage did not reach the acceptable range within a set time see Time Delays For example the Source E generator set did not start IPM Synching In Phase Monitor Synching Warning status The two sources did not come into phase within the Fail to Synchronize time delay Note I...

Страница 14: ...ds 1 8 2 Reset to Default Settings A personal computer with Kohlerr SiteTecht software can be used to reset the controller to factory defaults if necessary SiteTech software is only available to Kohler authorized distributors or dealers Note Resetting to the default parameters will reset all parameters including the system voltage and frequency to a factory default setting The default system volta...

Страница 15: ...nd the contactor is already in the preferred position the engine start contacts open immediately bypassing the engine cooldown time delay 2 2 Sequence of Operation The Sequence of Operation describes the transfer switch normal operation The MPAC 750 controller operates using standard transition only no programmed or closed transition operation Operation can be affected by faults such as the normal...

Страница 16: ...e start contacts open signaling the generator to stop 2 2 3 Test Sequence Unloaded Test Function is Initiated 1 The generator set is signaled to start 2 The generator starts and Source E becomes available Unloaded Test Function is Ended 1 Engine cooldown time delay expires 2 The generator is signaled to stop Loaded Test Function is Initiated 1 The generator is signaled to start engine start contac...

Страница 17: ...late 3 3 System Parameters The transfer switch is factory set for the transfer switch model and rating System parameters should not require adjustment The system parameter factory settings are shown in Figure 3 1 Note that some settings are not adjustable System Parameter Factory Setting Transition type standard See the ATS nameplate Single three phase Operating voltage Operating frequency 50 or 6...

Страница 18: ... 3 3 The engine start time delay and transfer time delays can prevent nuisance transfers caused by brief voltage dips or surges The engine cooldown time delay holds the engine start contacts closed for a designated time after transfer to allow the generator set to run without load before shutting down If the standby source does not reach acceptable voltage and stabilize within the allowed time the...

Страница 19: ... The optional programmable exerciser uses the remote test input See the instructions provided with the exerciser for more information Programmable Inputs LED LED Inhibit Transfer maintenance mode None Flashing Remote Common Alarm Steady None Remote Test None None Figure 3 4 Available Programmable Inputs 3 6 2 Output Functions Output functions are shown in Figure 3 5 Information about selected outp...

Страница 20: ...that can be assigned to the common alarm Alarm Descriptions Auxiliary Switch Fault Auxiliary Switch Open Contactor in Preferred Contactor in Source E Position Contactor in Source N Position Contactor in Standby Position Exerciser Active Fail to Acquire Standby Source Fail to Transfer In Phase Monitor Synching Not in Auto Remote Common Alarm Source E Available Source N Available Source N Rotation E...

Страница 21: ...ntroller can send encapsulated Modbus messages over the network connection Only one Modbus address can be assigned to the controller regardless of the communication port or protocol being used Note Modbusr applications require a Modbus software driver written by a trained and qualified systems programmer 4 2 Connections 4 2 1 USB Port SiteTech Connection A personal computer and Kohler SiteTech sof...

Страница 22: ...d pair cable to connect to the RS 485 connectors on controller terminal strip TB2 for serial connections For connection to a PC use a USB to RS 485 converter Connect the Modbus input and output to the terminals shown in Figure 4 4 Use 12 24 AWG shielded twisted pair wire Belden cable 9841 or equivalent is recommended Connect one end of the shield to ground Leave the other end of the shield disconn...

Страница 23: ...ting resistor 121 Ohms USB to RS 485 port converter Terminating resistor may be required 121 Ohms In Out In In In Out Out Out PC PC PC Use Belden 9841 or equivalent shielded twisted pair communication cable for RS 485 connections Ground one end of the cable shield Leave the other end of the cable shield disconnected Long cables and high communication speeds will require a terminating resistor Use ...

Страница 24: ... default IP address assigned at the factory for test purposes See Figure 4 7 Change the IP address to an address owned by the user See Section 3 8 for instructions to set the communication parameters The transfer switch controller does not operate as a Modbus to Ethernet converter for other devices in a network For multiple device networks connected to the personal computer through the Ethernet us...

Страница 25: ... Last device RS 485 Converter Modbusr Ethernet IP xx xx xx 05 RS 485 Modbusr TCP IP Modbusr TCP IP Ethernet Network PC IP xx xx xx 01 Terminating resistor 121 Ohms Device Device RS 485 Device Modbusr RTU RS 485 Modbusr TCP IP Category 5e Modbusr TCP IP Category 5e Figure 4 8 Ethernet Connections to Multiple Device Network ...

Страница 26: ... The transfer switch may have a default IP address assigned at the factory Change the IP address to a static IP address owned by the user Obtain an IP address subnet mask and default gateway information from the local network administrator Static Subnet Mask Obtain subnet mask information from the local network administrator All devices that communicate with each other on the same local network mu...

Страница 27: ...l network administrator Every device on the network must have a unique IP address Static Subnet Mask See notes Obtain from your local network administrator All devices that communicate with each other on the same local network must use the same subnet mask Static Default Gateway See notes Obtain from your local network administrator DHCP Server Read only Displayed for information only Modbus TCP U...

Страница 28: ...TP 6865 4 14 28 Section 4 Communications Obtain from the local network administrator Figure 4 10 Communications Parameters in Kohler SiteTech Software ...

Страница 29: ...be loaded onto the MPAC controller froma saved file Thiscan be usefulfor service or controller replacement See the SiteTech Operation Manual for instructions to export and import files 4 5 Controller Firmware Updates Kohler may release updated versions of the controller firmware A personal laptop computer connected to the USB port and Kohlerr SiteTecht software are required for updating the firmwa...

Страница 30: ...TP 6865 4 14 30 Section 4 Communications Notes ...

Страница 31: ...g can cause severe injury or death Before working on the generator set or connected equipment disable the generator set as follows 1 Move the generator set master switch to the OFF position 2 Disconnect the power to the battery charger 3 Remove the battery cables negative lead first Reconnect the negative lead last when reconnecting the battery Follow these precautions to prevent starting of the g...

Страница 32: ...re deenergized Short circuits Hazardous voltage current can cause severe injury or death Short circuits can cause bodily injury and or equipment damage Do not contact electrical connections with tools or jewelry while making adjustments or repairs Remove all jewelry before servicing the equipment NOTICE Electrostatic discharge damage Electrostatic discharge ESD damages electronic circuit boards Pr...

Страница 33: ...dition noticed during an external inspection may have affected internal components Contact an authorized distributor dealer to inspect and service the transfer switch if any of the following conditions are found inside the transfer switch D Accumulations of dirt dust moisture or other contaminants D Signs of corrosion D Worn missing or broken components D Loose hardware D Wire or cable insulation ...

Страница 34: ...ned and not badly worn 5 3 1 X X X M Inspect the inside of transfer switch for any signs of excessive vibration leakage high temperature contamination or deterioration 5 3 3 D D D Y Check that all internal hardware is in place tightened and not badly worn 5 3 3 X D D Y SPD Modules if equipped Check status indicators 6 6 X D Every 2 months Check condition of connecting leads 6 6 X D Service more fr...

Страница 35: ...or set by an automatic transfer switch remote start stop switch or engine start command from a remote computer Hazardous voltage Will cause severe injury or death Only authorized personnel should open the enclosure DANGER The controller disconnect switch allows disconnection of the power to the controller during maintenance and service See Figure 6 1 Note Disable the generator set before using the...

Страница 36: ... program weekly loaded or unloaded exercise periods in addition to the exercise time set through the ATS controller The timer is installed inside the ATS enclosure Programmable exerciser features include D Seven day programmable timer allows scheduling up to 56 on off events D LCD display indicates day time program run modes on off status and skip cycle status D Skip next cycle button D 5 year lit...

Страница 37: ...circuit breaker The relative humidity setting on the hygrostat is adjustable from 35 to 95 A setting of 65 is recommended Because of space limitations in the smaller enclosures 40 225 Amp Model KSS transfer switches can include either an enclosure heater or a surge protection device SPD but not both 1 Hygrostat assembly see Figure 6 5 2 Strip heater with guard 1 GM69824 2 Right Side View Figure 6 ...

Страница 38: ...ice SPD but not both 1 GM49947 1 SPD assembly is typically located on the side of the enclosure Location varies for different models Figure 6 7 SPD Location Typical SPD Specifications Nominal Voltage V 15 Max Discharge Current kA Phase Poles UL VPR 3rd Ed L N N G L G kV Limiting Voltage L N N G L G kV Short Circuit Withstand Current kA Maximum Continuou s Operating Voltage VAC at 3kAmps at 10kAmp ...

Страница 39: ...TP 6865 4 14 39 Section 6 Accessories Figure 6 9 SPD Wiring Diagram GM89992 ...

Страница 40: ...agram for connections SPD Remote Status Indication Specification Contact rating 1 A 250 VAC Wire Size 16 AWG Figure 6 11 Remote Status Indicator Contact Specifications 6 6 3 SPD Replacement Replace the module when the SPD indicator turns red Follow the replacement procedure in this section Hazardous voltage Will cause severe injury or death This equipment must be installed and serviced by qualifie...

Страница 41: ...4 Open the fuse holder 5 Remove the cartridge by pulling straight out 6 Replace the SPD cartridge with the appropriate service part 7 Close the fuse holder 8 Replace the enclosure s inner panel if equipped 9 Reconnect power to the transfer switch by closing the normaland emergencysource circuitbreakers 10 Check the SPD status indicators 11 Reconnect the generator set engine starting battery negati...

Страница 42: ...TP 6865 4 14 42 Section 6 Accessories Notes ...

Страница 43: ...es cu in cubic inch cw clockwise CWC city water cooled cyl cylinder D A digital to analog DAC digital to analog converter dB decibel dB A decibel A weighted DC direct current DCR direct current resistance deg degree dept department dia diameter DI EO dual inlet end outlet DIN Deutsches Institut fur Normung e V also Deutsche Industrie Normenausschuss DIP dual inline package DPDT double pole double ...

Страница 44: ...Phillipsr head Crimptiter screw PHH Phillipsr hex head screw PHM pan head machine screw PLC programmable logic control PMG permanent magnet generator pot potentiometer potential ppm parts per million PROM programmable read only memory psi pounds per square inch psig pounds per square inch gauge pt pint PTC positive temperature coefficient PTO power takeoff PVC polyvinyl chloride qt quart quarts qt...

Страница 45: ...TPMPFP 6865 4 14 45 Notes ...

Страница 46: ...TPMPFP 6865 4 14 46 Notes ...

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Страница 48: ...ler Wisconsin 53044 Phone 920 457 4441 Fax 920 459 1646 For the nearest sales service outlet in the US and Canada phone 1 800 544 2444 KOHLERPower com Kohler Power Systems Asia Pacific Headquarters 7 Jurong Pier Road Singapore 619159 Phone 65 6264 6422 Fax 65 6264 6455 ...

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