PowerCommand® 3.3 control system
Contents
1. Bus or genset PT input calibration warning The control system monitors the sensed voltage from the bus and genset output voltage potential transformers When the paralleling breaker is closed it will indicate a warning condition if the read values are different Field control interface Input signals to the PowerCommand control include Coolant level where applicable Fuel level where applicable Remote emergency stop Remote fault reset Remote start Rupture basin Start type signal Battle short Load demand stop Synchronize enable Genset circuit breaker inhibit Utility circuit breaker inhibit Single mode verify Transfer inhibit prevent transfer to utility in power transfer control mode Retransfer inhibit prevent retransfer to genset in power transfer control mode KW and kVAR load setpoints Configurable inputs Control includes 4 input signals from customer discrete devices that are configurable for warning shutdown or status indication as well as message displayed Output signals from the PowerCommand control include Load dump signal Operates when the genset is in an overload condition Delayed off signal Time delay based output which will continue to remain active after the control has removed the run command Adjustment range 0 120 seconds Default 0 seconds Configurable relay outputs Control includes 4 relay output contacts 3 A 30VDC Th2. Droop voltage regulation Control can be adjusted to droop from 0 10 from no load to full load Torque matched V Hz overload control The voltage roll off set point and rate of decay i e the slope of the V Hz curve is adjustable in the control Fault current regulation PowerCommand will regulate the output current on any phase to a maximum of three times rated current under fault conditions for both single phase and three phase faults In conjunction with a permanent magnet generator it will provide three times rated current on all phases for motor starting and short circuit coordination purpose Paralleling functions First Start Sensor system PowerCommand provides a unique control function that positively prevents multiple gensets from simultaneously closing to an isolated bus under black start conditions The First Start Sensor system is a communication system between the gensets that allows the gensets to work together to determine which genset is a system should be the first to close to the bus The system includes an independent backup function so that if the primary system is disabled the required functions are still performed Synchronizing Control incorporates a digital synchronizing function to force the genset to match the frequency phase and voltage of another source such as a utility grid The synchronizer includes provisions to provide proper operation even with highly distorted bus voltage waveform
3. Warning Back feed to a utility system can cause electrocution and or property damage Do not connect to any building s electrical system except through an approved device or after building main switch is open Our energy working for you www cumminspower com Power Generation 2008 Cummins Power Generation Inc All rights reserved Specifications subject to change without notice Cummins Power Generation and Cummins are registered trademarks of Cummins Inc PowerCommand AmpSentry InPower and Our energy working for you are trademarks of Cummins Power Generation Other company product or service names may be trademarks or service marks of others S 1570 4 08 Page 11 of 11
4. ambient temperatures from 40 C 104 F to 70 C 158 F and for storage from 55 C 131 F to 80 C 176 F Control will operate with humidity up to 95 non condensing The HMI is designed for proper operation in ambient temperatures from 20 C 4 F to 70 C 158 F and for storage from 30 C 22 F to 80 C 176 F Our energy working for you www cumminspower com 2008 Cummins Power Generation Inc All rights reserved Specifications subject to change without notice Cummins Power Generation and Cummins are registered trademarks of Cummins Inc PowerCommand AmpSentry InPower and Our energy working for you are trademarks of Cummins Power Generation Other company product or service names may be trademarks or service marks of others S 1570 4 08 Page 10 of 11 The control board is fully encapsulated to provide superior resistance to dust and moisture Display panel has a single membrane surface which is impervious to effects of dust moisture oil and exhaust fumes This panel uses a sealed membrane to provide long reliable service life in harsh environments The control system is specifically designed and tested for resistance to RFI EMI and to resist effects of vibration to provide a long reliable life when mounted on a genset The control includes transient voltage surge suppression to provide compliance to referenced standards Certifications PowerCommand meets or ex
5. derived from the genset starting batteries The control functions over a voltage range from 8 VDC to 30 VDC Features e 12 and 24 VDC battery operation e Digital voltage regulation Three phase full wave FET type regulator compatible with either shunt or PMG systems Sensing is three phase e Full authority engine communications where applicable Provides communication and control with the Engine Control Module ECM e AmpSentry protection for true alternator overcurrent protection e Genset monitoring Monitors status of all critical engine and alternator functions e Digital genset metering AC and DC e Genset battery monitoring system to sense and warn against a weak battery condition e Configurable for single or three phase AC metering e Engine starting Includes relay drivers for starter fuel shut off FSO glow plug spark ignition power and switch B applications e Genset protection Protects engine and alternator e Real time clock for fault and event time stamping Our energy working for you www cumminspower com 2008 Cummins Power Generation Inc All rights reserved Specifications subject to change without notice Cummins Power Generation and Cummins are registered trademarks of Cummins Inc PowerCommand AmpSentry InPower and Our energy working for you are trademarks of Cummins Power Generation Other company product or service names may be trademarks or service mar
6. integral to the PowerCommand Control System that guards the electrical integrity of the alternator and power system by providing protection against a wide array of fault conditions in the genset or in the load It also provides single and three phase fault current regulation so that downstream protective devices have the maximum current available to quickly clear fault conditions without subjecting the alternator to potentially catastrophic failure conditions See document R1053 for a full size time over current curve The control does not included protection required for interconnection to a utility mains service Our energy working for you www cumminspower com 2008 Cummins Power Generation Inc All rights reserved Specifications subject to change without notice Cummins Power Generation and Cummins are registered trademarks of Cummins Inc PowerCommand AmpSentry InPower and Our energy working for you are trademarks of Cummins Power Generation Other company product or service names may be trademarks or service marks of others S 1570 4 08 Page 7 of 11 ALI ERMA IRE PHERBLYL DARAGE CURTE AMESEN TRY PROTECTION SECON Tike AMPS WES HATED High AC voltage shutdown 59 Output voltage on any phase exceeds preset values Time to trip is inversely proportional to amount above threshold Values adjustable from 105 125 of nominal voltage with time delay adjustable from 0 1 10 seconds Default val
7. the LCD Seven tactile feel membrane switches dedicated screen navigation buttons for up down left right ok home and cancel Six tactile feel membrane switches dedicated to control for auto stop manual manual start fault reset and lamp test panel lamps Two tactile feel membrane switches dedicated to control of circuit breaker where applicable Allows for complete genset control setup Certifications Suitable for use on gensets that are designed manufactured tested and certified to relevant UL NFPA ISO IEC Mil Std and CE standards LCD languages supported English Spanish French German Italian Greek Dutch Portuguese Finnish Norwegian Danish Russian Czech and Chinese Characters Power Generation Communications connections include PC tool interface This RS 485 communication port allows the HMI to communicate with a personal computer running InPower This RS 485 communication port allows the HMI to communicate with the main control board Mechanical drawing 299 6 11 8 gt 38 75 1 53 234 6 9 24 H Dimensions mm inches Software InPower beyond 6 5 version is a PC based software service tool that is designed to directly communicate to PowerCommand gensets and transfer switches to facilitate service and monitoring of these products Environment The control is designed for proper operation without recalibration in
8. to a load if the utility fails The control will also resynchronize the genset back to the utility and provides extended paralleling capabilities Utility Multiple Supports all functionality of Isolated Bus and provides extended paralleling to the utility Extended paralleling load set points follow a constant setting dynamically follow an analog input Modbus register or HMI Load share lines Utility Parallel Enable Our energy working for you www cumminspower com 2008 Cummins Power Generation Inc All rights reserved Specifications subject to change without notice Cummins Power Generation and Cummins are registered trademarks of Cummins Inc PowerCommand AmpSentry InPower and Our energy working for you are trademarks of Cummins Power Generation Other company product or service names may be trademarks or service marks of others S 1570 4 08 Page 6 of 11 Power Transfer Control control operates a single genset single utility transfer pair in open transition fast closed transition or soft closed transition Extended paralleling functionality also provides base load and peak shave options Protective functions On operation of a protective function the control will indicate a fault by illuminating the appropriate status LED on the HMI as well as display the fault code and fault description on the LCD The nature of the fault and time of occurrence are logged in the control The service m
9. C Mil Std and CE standards Base control functions HMI capability Operator adjustments The HMI includes provisions for many set up and adjustment functions Genset hardware data Access to the control and software part number genset rating in KVA and genset model number is provided from the HMI or InPower Data logs Includes engine run time controller on time number of start attempts total kilowatt hours and load profile Control logs data indicating the operating hours at percent of rated kW load in 5 increments The data is presented on the operation panel based on total operating hours on the generator Fault history Provides a record of the most recent fault conditions with control date and time stamp Up to 32 events are stored in the control non volatile memory Power Generation Alternator data Voltage single or three phase line to line and line to neutral Current single or three phase kW KVAR power factor KVA three phase and total Frequency Utility AC bus data Voltage three phase line to line and line to neutral Current three phase and total kW KVAR power factor KVA three phase and total Frequency Engine data Starting battery voltage Engine speed Engine temperature Engine oil pressure Engine oil temperature Intake manifold temperature Comprehensive Full Authority Engine FAE data where applicable Service adjustmen
10. PowerCommand 3 3 control system gt Specification sheet Our energy working for you Power Generation Control system description The PowerCommand control system is a microprocessor based genset monitoring metering and control system designed to meet the demands of today s engine driven gensets The integration of all control functions into a single control system provides enhanced reliability and performance compared to conventional genset control systems These control systems have been designed and tested to meet the harsh environment in which gensets are typically applied Features e 320 x 240 pixels graphic LED backlight LCD e Multiple language support e AmpSentry protection for true alternator overcurrent protection e Digital Power Transfer Control AMF provides load transfer operation in open transition closed transition or soft ramping transfer modes e Extended Paralleling Peak Shave Base Load regulates the genset real and reactive power output while paralleled to the utility Power can be regulated at either the genset or utility bus monitoring point e Digital frequency synchronization and voltage matching e Isochronous Load Share e Droop KW and KVAR Control e Real time clock for fault and event time stamping e Exerciser clock and time of day start stop initiate a test with or without load or a Base Load or Peak Shave session e Digital voltage regulation T
11. anual and InPower service tool provide service keys and procedures based on the service codes provided Protective functions include Battle short mode When enabled and the battle short switch is active the control will allow some shutdown faults to be bypassed If a bypassed shutdown fault occurs the fault code and description will still be annunciated but the genset will not shutdown This will be followed by a fail to shutdown fault Emergency stop shutdowns and others that are critical for proper operation are not bypassed Please refer to the Control Application Guide or Manual for list of these faults Derate The Derate function reduces output power of the genset in response to a fault condition If a Derate command occurs while operating on an isolated bus the control will issue commands to reduce the load on the genset via contact closures or Modbus If a Derate command occurs while in utility parallel mode the control will actively reduce power by lowering the base load kW to the derated target kW Configurable alarm and status inputs The control accepts up to four alarm or status inputs configurable contact closed to ground or open to indicate a configurable customer specified condition Power Generation The control is programmable for warning derate shutdown shutdown with cooldown or status indication and for labeling the input Emergency stop Annunciated whenever either emergency stop signal is rec
12. ceeds the requirements of the following codes and standards NFPA 110 for level 1 and 2 systems ISO 8528 4 1993 compliance controls and switchgear CE marking The control system is suitable for use on generator sets to be CE marked EN 50081 1 2 residential light industrial emissions or industrial emissions EN 50082 1 2 residential light industrial or industrial susceptibility ISO 7637 2 level 2 DC supply surge voltage test Mil Std 202C Method 101 and ASTM B117 Salt fog test UL 508 recognized or Listed and suitable for use on UL 2200 Listed generator sets CSA C282 M1999 compliance CSA 22 2 No 14 M91 industrial controls PowerCommand control systems and generator sets are designed and manufactured in ISO 9001 certified facilities Warranty All components and subsystems are covered by an express limited one year warranty Other optional and extended factory warranties and local distributor maintenance agreements are available Power Generation PC CNet COMPATIBLE See your distributor for more information Cummins Power Generation Americas Europe CIS Middle East and Africa Asia Pacific 1400 73 Avenue N E Manston Park Columbus Ave 10 Toh Guan Road 07 01 Minneapolis MN 55432 USA Manston Ramsgate TT International Tradepark Phone 763 574 5000 Kent CT 12 5BF United Kingdom Singapore 608838 Fax 763 574 5298 Phone 44 1843 255000 Phone 65 6417 2388 Fax 44 1843 255902 Fax 65 6417 2399
13. d paralleling In extended paralleling mode when enabled the controller will start the genset and parallel to a utility source and then govern the real and reactive power output of the genset based on the desired control point The control point for the real power kW can be configured for either the genset metering point Base Load or the utility metering point Peak Shave The control point for the reactive power kKVAR or Power Factor can also be independently configured for either the genset metering point or the utility metering point This flexibility would allow base kW load from the genset while maintaining the utility power factor at a reasonable value to avoid penalties due to low power factor The System always operates within genset ratings The control point can be changed while the system is in operation Set points can be adjusted via hardwired analog input or adjusted through an operator panel display or service tool Our energy working for you www cumminspower com 2008 Cummins Power Generation Inc All rights reserved Specifications subject to change without notice Cummins Power Generation and Cummins are registered trademarks of Cummins Inc PowerCommand AmpSentry InPower and Our energy working for you are trademarks of Cummins Power Generation Other company product or service names may be trademarks or service marks of others S 1570 4 08 Page 5 of 11 Exerciser clock The exerciser cl
14. e control provides comprehensive three phase AC metering functions for both monitored sources including 3 phase voltage L L and L N and current frequency phase rotation individual phase and totalized values of kW KVAR kVA and Power Factor totalized positive and negative kW hours kVAR hours and kVA hours Three wire or four wire voltage connection with direct sensing of voltages to 600V and up to 45kV with external transformers Current sensing is accomplished with either 5 amp or 1 CT secondaries and with up to 10 000 amp primary Maximum power readings are 32 000KW kKVAR KVA Power transfer control provides integrated automatic power transfer functions including source availability sensing genset start stop and transfer pair monitoring and control The transfer retransfer is configurable for open transition fast closed transition less than 100msec interconnect time or soft closed transition load ramping sequences of operation Utility source failure will automatically start genset and transfer load retransferring when utility source returns Test will start gensets and transfer load if test with load is enabled Sensors and timers include Power Generation Under voltage sensor 3 phase L N or L L under voltage sensing adjustable for pickup from 85 100 of nominal Dropout adjustable from 75 98 of pickup Dropout delay adjustable from 0 1 30 sec Over voltage sensor 3 phase L N or L L over voltage sensing adj
15. eived from external switch Full authority electronic engine protection Engine fault detection is handled inside the engine ECM Fault information is communicated via the SAE J1939 data link for annunciation in the HMI General engine protection Low and high battery voltage warning Indicates status of battery charging system failure by continuously monitoring battery voltage Weak battery warning The control system will test the battery each time the genset is signaled to start and indicate a warning if the battery indicates impending failure Fail to start overcrank shutdown The control system will indicate a fault if the genset fails to start by the completion of the engine crack sequence Fail to crank shutdown Control has signaled starter to crank engine but engine does not rotate Cranking lockout The control will not allow the starter to attempt to engage or to crank the engine when the engine is rotating Fault Simulation The control in conjunction with InPower software will accept commands to allow a technician to verify the proper operation of the control and its interface by simulating failure modes or by forcing the control to operate outside of its normal operating ranges InPower also provides a complete list of faults and settings for the protective functions provided by the controller Alternator protection AmpSentry protective relay A UL listed comprehensive monitoring and control system
16. ernator output frequency The control also supports configurable glow plug control when applicable Cycle cranking Is configurable for the number of starting cycles 1 to 7 and duration of crank and rest periods Control includes starter protection algorithms to prevent the operator from specifying a starting sequence that might be damaging Time delay start and stop cooldown Configurable for time delay of 0 300 seconds prior to starting after receiving a remote start signal and for time delay of 0 600 seconds prior to shut down after signal to stop in normal operation modes Default for both time delay periods is 0 seconds Alternator control The control includes an integrated three phase line to line sensing voltage regulation system that is compatible with shunt or PMG excitation systems The voltage regulation system is a three phase full wave rectified and has an FET output for good motor starting capability Major system features include Digital output voltage regulation Capable of regulating output voltage to within 1 0 for any loads between no load and full load Voltage drift will not exceed 1 5 for a 40 C 104 F change in temperature in an eight hour period On engine starting or sudden load acceptance voltage is controlled to a maximum of 5 overshoot over nominal level Power Generation The automatic voltage regulator feature can be disabled to allow the use of an external voltage regulator
17. ese outputs can be configured to activate on any control warning or shutdown fault as well as ready to load not in auto common alarm common warning and common shutdown Ready to load genset running signal Operates when the genset has reached 90 of rated speed and voltage and latches until genset is switched to off or idle mode Power Generation Paralleling circuit breaker relays outputs Control includes 4 relay output contacts 3 5A 30 VDC for opening and closing of the genset and utility breakers Communications connections include PC tool interface This RS 485 communication port allows the control to communicate with a personal computer running InPower software Modbus RS 485 port Allows the control to communicate with external devices such as PLCs using Modbus protocol Note An RS 232 or USB to RS 485 converter is required for communication between PC and control Networking This RS 485 communication port allows connection from the control to the other Cummins Power Generation products Mechanical drawing lt lt 255 5 10 06 gt R3 C O 69 5 2 74 l Control Board 198 5 7 85 PowerCommand human machine interface HMI320 Our energy working for you www cumminspower com 2008 Cummins Power Generation Inc All rights reserved Specifications subject to change without notice Cummins Power Generation and Cummins are registered trademarks of Cumm
18. hree phase full wave FET type regulator compatible with either shunt or PMG systems e Genset monitoring and protection e Utility AC Bus metering and protection e 12 and 24 VDC battery operation e Modbus interface for interconnecting to customer equipment e Warranty and service Backed by a comprehensive warranty and worldwide distributor service network e Certifications Suitable for use on gensets that are designed manufactured tested and certified to relevant UL NFPA ISO IEC Mil Std and CE standards 2008 Cummins Power Generation Inc All rights reserved Specifications subject to change without notice Cummins Power Generation and Cummins are registered trademarks of Cummins Inc PowerCommand AmpSentry InPower and Our energy working for you are trademarks of Cummins Power Generation Other company product or service names may be trademarks or service marks of others S 1570 4 08 Page 1 of 11 PowerCommand digital genset control PCC 3300 ma ete eee ee Description The PowerCommand genset control is suitable for use on a wide range of gensets in paralleling applications The PowerCommand control is compatible with shunt or PMG excitation style It is suitable for use with reconnectable or non reconnectable generators and it can be configured for any frequency voltage and power connection from 120 600 VAC line to line or 601 45 000 VAC with external PT Power for this control system is
19. ins Inc PowerCommand AmpSentry InPower and Our energy working for you are trademarks of Cummins Power Generation Other company product or service names may be trademarks or service marks of others S 1570 4 08 Page 9 of 11 Description This control system includes an intuitive operator interface panel that allows for complete genset control as well as system metering fault annunciation configuration and diagnostics The interface includes five genset status LED lamps with both internationally accepted symbols and English text to comply with customers needs The interface also includes an LED backlit LCD display with tactile feel soft switches for easy operation and screen navigation It is configurable for units of measurement and has adjustable screen contrast and brightness The run off auto switch function is integrated into the interface panel All data on the control can be viewed by scrolling through screens with the navigation keys The control displays the current active fault and a time ordered history of the five previous faults Features e LED indicating lamps genset running remote start not in auto shutdown warning auto manual and stop Circuit breaker open if equipped Circuit breaker closed if equipped 320 x 240 pixels graphic LED backlight LCD Four tactile feel membrane switches for LCD defined operation The functions of these switches are defined dynamically on
20. ks of others S 1570 4 08 Page 2 of 11 e Exerciser clock and time of day start stop initiate a test with or without load or a Base Load or Peak Shave session Digital Power Transfer Control AMF provides load transfer operation in open transition closed transition or soft ramping transfer modes Extended Paralleling Peak Shave Base Load regulates the genset real and reactive power output while paralleled to the utility Power can be regulated at either the genset or utility bus monitoring point Digital frequency synchronization and voltage matching lsochronous Load Share Droop KW and KVAR Control Sync Check The sync check function has adjustments for phase angle window voltage window frequency window and time delay Utility AC Bus metering and protection Advanced serviceability using InPower a PC based software service tool Environmental protection The control system is designed for reliable operation in harsh environments The main control board is a fully encapsulated module that is protected from the elements ModBus interface for interconnecting to customer equipment Configurable inputs and outputs Four discrete inputs and four dry contact relay outputs Warranty and service Backed by a comprehensive warranty and worldwide distributor service network Certifications Suitable for use on gensets that are designed manufactured tested and certified to relevant UL NFPA ISO IE
21. ock when enabled allows the system to be operated at preset times in either test without load test with load or extended parallel mode A Real Time Clock is built in Up to 12 different programs can be set for day of week time of day duration repeat interval and mode For example a test with load for 1 hour every Tuesday at 2AM can be programmed Up to 6 different exceptions can also be set up to block a program from running during a specific date and time period Application types Controller is configured to operating in one of six possible application types These topologies are often used in combinations in larger systems with coordination of the controllers in the system either by external device or by interlocks provided in the control Topologies that may be selected in the control include Standalone Control provides monitoring protection and control in a non paralleling application PCC gt 3300 Synchronizer only control will synchronize the genset to other source when commanded to either via a hardwired or Modbus driven input Sync Enable Sync Check Isolated Bus allows the genset to perform a dead bus closure or synchronize to the bus and isochronously share kW and kVAR loads with other gensets Power Generation Load share lines PCC PCC PCC 3300 3XXX 3XXX JOLO gt D TOL Utility Single Control monitors one genset and utility The control will automatically start and provide power
22. r position contact warning will be initiated Breaker tripped warning The control accepts inputs to monitor breaker trip bell alarm contact and will initiate a breaker tripped warning if it should activate Fail to disconnect warning In the controller is unable to open either breaker a fail to disconnect warning is initiated Typically this would be mapped to a configurable output allowing an external device to trip a breaker Fail to synchronize warning Indicates that the genset could not be brought to synchronization with the bus Configurable for adjustable time delay of 10 900 seconds 120 default Phase sequence sensing warning Verifies that the genset phase sequence matches the bus prior to allowing the paralleling breaker to close Our energy working for you www cumminspower com 2008 Cummins Power Generation Inc All rights reserved Specifications subject to change without notice Cummins Power Generation and Cummins are registered trademarks of Cummins Inc PowerCommand AmpSentry InPower and Our energy working for you are trademarks of Cummins Power Generation Other company product or service names may be trademarks or service marks of others S 1570 4 08 Page 8 of 11 Maximum parallel time warning power transfer control mode only During closed transition load transfers control independently monitors paralleled time If time is exceeded warning is initiated and genset is disconnected
23. s The synchronizer can match other sources over a range of 60 110 of nominal voltage and 24 to 6 hertz The synchronizer function is configurable for slip frequency synchronizing for applications requiring a Known direction of power flow at instant of breaker closure or for applications where phase synchronization performance is otherwise inadequate Load sharing control The genset control includes an integrated load sharing control system for both real kW and reactive kVar loads when the genset s are operating on an isolated bus The control system determines kW load on the engine and kVar load on the alternator as a percent of genset capacity and then regulates fuel and excitation systems to maintain system and genset at the same percent of load without impacting voltage or frequency regulation The control can also be configured for operation in droop mode for kW or Kvar load sharing Our energy working for you www cumminspower com 2008 Cummins Power Generation Inc All rights reserved Specifications subject to change without notice Cummins Power Generation and Cummins are registered trademarks of Cummins Inc PowerCommand AmpSentry InPower and Our energy working for you are trademarks of Cummins Power Generation Other company product or service names may be trademarks or service marks of others S 1570 4 08 Page 4 of 11 Load govern control When PowerCommand receives a signal indicating that
24. the genset is paralleled with an infinite source such as a utility mains service the genset will operate in load govern mode In this mode the genset will synchronize and close to the bus ramp to a pre programmed kW and kVar load level and then operate at that point Control is adjustable for kW values from 0 100 of standby rating and 0 7 1 0 power factor lagging Default setting is 80 of standby and 1 0 power factor The control includes inputs to allow independent control of kW and kVar load level by a remote device while in the load govern mode The rate of load increase and decrease is also adjustable in the control Load demand control The control system includes the ability to respond to an external signal to initiate load demand operation On command the genset will ramp to no load open its paralleling breaker cool down and shut down On removal of the command the genset will immediately start synchronize connect and ramp to its share of the total load on the system Sync check The sync check function decides when permissive conditions have been met to allow breaker closure Adjustable criteria are phase difference from 0 1 20deg frequency difference from 0 001 1 0Hz voltage difference from 0 5 10 and a dwell time from 0 5 5 0sec Internally the sync check is used to perform closed transition operations An external sync check output is also available Genset and utility AC bus source AC metering Th
25. ts The HMI includes provisions for adjustment and calibration of genset control functions Adjustments are protected by a password Functions include Engine speed governor adjustments Voltage regulation adjustments Cycle cranking Configurable fault set up Configurable input and output set up Meter calibration Paralleling setup Display language and units of measurement Engine control SAE J1939 CAN interface to full authority ECMs where applicable Provides data transfer between genset and engine controller for control metering and diagnostics 12 VDC 24 VDC battery operations PowerCommand will operate either on 12 VDC or 24 VDC batteries Temperature dependent governing dynamics with electronic governing modifies the engine governing control parameters as a function of engine temperature This allows the engine to be more responsive when warm and more stable when operating at lower temperature levels lsochronous governing where applicable Capable of controlling engine speed within 0 25 for any steady state load from no load to full load Frequency drift will not exceed 0 5 for a 33 C 60 F change in ambient temperature over an 8 hour period Our energy working for you www cumminspower com 2008 Cummins Power Generation Inc All rights reserved Specifications subject to change without notice Cummins Power Generation and Cummins are registered trademarks of C
26. ue is 110 for 10 seconds Low AC voltage shutdown 27 Voltage on any phase has dropped below a preset value Adjustable over a range of 50 95 of reference voltage time delay 2 20 seconds Default value is 85 for 10 seconds Function tracks reference voltage Control does not nuisance trip when voltage varies due to the control directing voltage to drop such as during a V Hz roll off or synchronizing Under frequency shutdown 81 u Genset output frequency cannot be maintained Settings are adjustable from 2 10 Hz below reference governor set point for a 5 20 second time delay Default 6 Hz 10 seconds Under frequency protection is disabled when excitation is switched off such as when engine is operating in idle speed mode Over frequency shutdown warning 810 Genset is operating at a potentially damaging frequency level Settings are adjustable from 2 10 Hz above nominal governor set point for a 1 20 second time delay Default 6 Hz 20 seconds disabled Overcurrent warning shutdown 51 Implementation of the thermal damage curve with instantaneous trip level calculated based on current transformer ratio and application power rating Power Generation Loss of sensing voltage shutdown Shutdown of genset will occur on loss of voltage sensing inputs to the control Field overload shutdown Monitors field voltage to shutdown genset when a field overload condition occurs Over load kW warning Pro
27. ummins Inc PowerCommand AmpSentry InPower and Our energy working for you are trademarks of Cummins Power Generation Other company product or service names may be trademarks or service marks of others S 1570 4 08 Page 3 of 11 Droop electronic speed governing Control can be adjusted to droop from 0 to 10 from no load to full load Remote start mode It accepts a ground signal from remote devices to automatically start the genset and immediately accelerates to rated speed and voltage The remote start signal will also wake up the control from sleep mode The control can incorporate a time delay start and stop Remote and local emergency stop The control accepts a ground signal from a local genset mounted or remote facility mounted emergency stop switch to cause the genset to immediately shut down The genset is prevented from running or cranking with the switch engaged If in sleep mode activation of either emergency stop switch will wakeup the control Sleep mode The control includes a configurable low current draw state to minimize starting battery current draw when the genset is not operating The control can also be configured to go into a low current state while in auto for prime applications or applications without a battery charger Engine starting The control system supports automatic engine starting Primary and backup start disconnects are achieved by one of two methods magnetic pickup or main alt
28. ustable for pickup from 95 99 of dropout Dropout adjustable from 105 135 of nominal Dropout delay adjustable from 0 5 120 sec Standard configuration is disabled and is configurable to enabled in the field using the HMI or InPower service tools Over Under frequency sensor Center frequency adjustable from 45 65 Hz Dropout bandwidth adjustable from 0 3 5 of center frequency beyond pickup bandwidth Pickup bandwidth adjustable from 0 3 20 of center frequency Field configurable to enable Loss of phase sensor Detects out of range voltage phase angle relationship Field configurable to enable Phase rotation sensor Checks for valid phase rotation of source Field configurable to enable Breaker tripped If the breaker tripped input is active the associated source will be considered as unavailable Timers Control provides adjustable start delay from 0 300sec stop delay from 0 800sec transfer delay from 0 120sec retransfer delay from 0 1800sec programmed transition delay from 0 60sec and maximum parallel time from 0 1800sec Breaker control Utility and Genset breaker interfaces include separate relays for opening and closing breaker as well as inputs for both a and b breaker position contacts and tripped status Breaker diagnostics include Contact Failure Fail to Close Fail to Open Fail to Disconnect and Tripped Upon breaker failure appropriate control action is taken to maintain system integrity Extende
29. vides a warning indication when engine is operating at a load level over a set point Adjustment range 80 140 of application rated kW 0 120 second delay Defaults 105 60 seconds Reverse power shutdown 32 Adjustment range 5 20 of standby kW rating delay 1 15 seconds Default 10 3 seconds Reverse Var shutdown Shutdown level is adjustable 15 50 of rated Var output delay 10 60 seconds Default 20 10 seconds Short circuit protection Output current on any phase is more than 175 of rating and approaching the thermal damage point of the alternator Control includes algorithms to protect alternator from repeated over current conditions over a short period of time Paralleling protection Breaker fail to close Warning When the control signals a circuit breaker to close it will monitor the breaker auxiliary contacts and verify that the breaker has closed If the control does not sense a breaker closure within an adjustable time period after the close signal the fail to close warning will be initiated Breaker fail to open warning The control system monitors the operation of breakers that have been signaled to open If the breaker does not open within and adjustable time delay a Breaker Fail to Open warning is initiated Breaker position contact warning The controller will monitor both a and b position contacts from the breaker If the contacts disagree as to the breaker position the breake
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