User Manual - Electronic Monitoring Solutionz
Contents
1. EMS 326 GENSET CONTROLLER Range Default Description OFF Fuel level alarm setpoint Fuel Alarm 1 50 50 Alarm output activates and engine is shutdown Yo When low fuel alarm is active engine start is inhibited 5 55 Fuel Warn e 55 Fuel level warning setpoint 0 Oil protection sensor mode Switch Switch Protection from switch input only Oil Prot Sender Switch e bate Sender Protection from analog input only ot Both Combined protection YES Oil Check N YES Checks for oil pressure prior to cranking Yes Uses the digital Oil Pressure input to disconnect VES the crank This may be used as an auxiliary mechanism Oil Dis YES to disconnect the crank quickly when the speed source is NO slow to establish No Switch is only used for alarm if enabled Oil Prot Oil Pressure Disconnect delay Used to delay the effect Oil Dis Delay OFF of the oil disconnect switch by 1 second for cold climatic ON conditions Only configurable via the PC configuration Software LowWater OFF ON Enables the Radiator Water Level Alarm Must be En ON disabled if the Water level is not monitored Monitoring Delay time from engine starting before TempMonDI 1 300 25 monitoring for high engine temperature This is to allow y sec the starting of a hot engine This delay will be truncated once the Engine temperature goes above 50 2C Engine Temperature Source Water Water Water monitoring ETemp Sy2. EMS 326 GENSET CONTROLLER 7 Alarms and Warnings In the event of abnormal operating conditions the unit will issue a warning or an alarm and shut the genset down as required The LCD shows an appropriate message indicating the nature of the condition To draw operator attention to the condition the flashing general alarm LED is used In most cases Warnings do not stop the genset and are self resetting Alarms will normally stop the genset and require the operator to clear the alarm by pressing the Stop or Accept button The genset cannot be started if an alarm exists Warnings are indicated by slow flashing of the alarm LED and displaying the appropriate message on the LCD as follows Oil Pressure Low The oil pressure is below the warning setpoint Engine Temp High The engine temperature is above the warning setpoint Canopy Temp High The canopy temperature is above the warning setpoint Low Fuel The Fuel Level is below the warning setpoint Under Speed Warning The engine speed is below the warning setpoint Over Speed Warning The engine speed is over the warning setpoint Battery Volts Low The battery volts are below the warning setpoint Battery Volts High The battery volts are above the warning setpoint Battery Charge Fail The battery is not being charged correctly Auto Start On The Autostart input is active when the unit is not in auto mode Engine maintenance is due The engine has
3. EMS326 Basic Genset Controller User Manual This document applies to 9001 0050 Version History S No Version No Changes Made Date Modified Modified By Approved By 1 2 www ems gen nz The information contained in this document is copyright and shall not be reproduced without the written authority of EMS 2008 FUTURE ELECTRONICS LIMITED PHONE 6498184726 ADDRESS 5C WESTECH PLACE KELSTON AUCKLAND 0602 NEW ZEALAND EMS 326 GENSET CONTROLLER Contents er 1 0 p EE 4 A a tees ee Sek eet teeta a a a es cee tees ce gice Conte S 4 3 Physical FONN e iye ene oka tn k k ayen kon l aka esses Sil kebek kal aw bk ceeds he vin si ana kk ai ee ee 5 Ai Div de CN 6 4 1 RR 6 4 2 Engine MONITORES ci iaa 6 4 3 G n rator MONILONING iia aaa 7 4 4 System LED IMNGICATIONS peye ee avion ke kane aa Dee lets 7 4 5 System LED Displays 246 teyat ek e S dd 8 4 6 Engine LCD Eelef deeg deeg Aere dE e Pe DU ki e bk yi a ke re a bad va ven 8 4 7 Genset LOD Displays ii ad 8 4 8 ACTIONS tata 8 4 9 Analog INPUT A A ee ie 9 ALO Digital Input da 9 ATI OUTPUTS airn e e a Ee e A ca 9 Bi OPONE 10 5 1 Gite de EE 10 5 2 LED Si d va desa ii see os sa ven boua de Pwo oi w eege eege eege a pe vo kep e E 10 5 3 Initial Power RE 11 et Rea E E E A E E A E an pe on die E 11 532 A A de soon tea ko intak snai idee ege ege Ae Dee 11 5 4 Manual Operation
4. Low coolant level Radiator water level low Low fuel level Engine fuel level low High canopy temperature Engine canopy temperature high 4 7 Genset LCD Displays Phase Voltages Phase 1 2 and 3 Voltages Phase Currents Phase 1 2 and 3 Currents Phase Frequencies Phase 1 2 and 3 Frequencies Phase Reversal Phase 1 2 or 3 Reversed Overload Genset overloaded 4 8 AC Inputs 3 Phase Genset AC Voltage Genset AC voltages 3 Phase Genset Current Genset AC currents via external 5A CTs Confidential www ems gen nz Page 8 EMS 326 GENSET CONTROLLER 4 9 Analog Inputs Lubrication Oil Pressure Engine oil pressure Engine Temperature Engine coolant temperature Air or Water Radiator Water Level Engine radiator water level Fuel Level Engine fuel level Canopy Temperature Engine canopy temperature 4 10 Digital Inputs Auto Start Stop Input Auto start Emergency Stop Input Emergency engine stop Oil Switch Input Oil Pressure Switch sensor User Input User Defined Input 4 11 Outputs Excitation Output Alternator excitation control and feedback Fuel Output Open drain fuel solenoid control Crank Output Open drain engine crank control Contactor A Output Open drain transfer contactor A control Contactor B Output Open drain transfer contactor B control Sounder Output Open drain audible so
5. GENSET CONTROLLER Range Default Description TS200 TS150 Sensor with FSD of 1502C TS200 Sender with FSD of 2002C ETemp 70 200 ae High Engine temperature alarm shutdown set point Alarm ec Alarm output activates Engine is shutdown ETemp 70 ETALM m High Engine temperature warning set point Warn ec Engine continues to run OFF Lo Battery 9 5 24 10 0 Low Battery voltage level warning Volts 12 32 Hi Battery OFF 15 0 High Battery voltage level warning Volts 12 0 38 0 Maximum Battery Voltage If the Battery voltage MaxBat VIt OFF 18 0 exceeds this level then the engine is shut down This is Volts used to protect the battery from a failed alternator OFF The minimum battery voltage below which a Low Chg Min V 10 28 13 1 Charge Volts warning is activated when the engine is running This generally indicates an excitation failure or Volts broken alternator belt Selects Canopy temperature sensor type COF COF Switch Cl Fault Clemp tyne EMSOS OF Switc ose on Fau EMS08 EMSO8 EMSO8 temperature sensor with an FSD of 1002C OFF CTemp High canopy temperature alarm shutdown set point 45 85 60 coe Alarm Alarm output activates and engine is shutdown 2C OFF CTemp High canopy temperature warning set point and engine 40 85 55 f Warn continues to run e COF Fuel T 920 410 180 Fuel level t uel Type uel level sensor type 10 180 180 10 Confidential www ems gen nz Page 24
6. Lo Volt Trip 60 240 is The minimum generator voltage below which the Volts Genset is shut down 0 30 i i Lo Volt Dly 3 Time before the alarm will react to low generator sec voltage 110 300 Th i hich th Hi Volt Trip 275 e maximum generator voltage above which the Volts Genset is shut down Hi Volt Dly 0 30 A Time before the alarm will react to high generator sec voltage Lo Hz Trip 30 60 44 The minimum generator frequency below which the Genset is shut down This is only checked while the Confidential www ems gen nz Page 28 EMS 326 GENSET CONTROLLER Hz engine is Running on load 0 30 i i Lo Hz Dly 3 Time before the alarm will react to low generator sec frequency 50 70 i Hi Hz Trip 56 The maximum generator frequency above which Hz the Genset is shut down 0 30 i i i Hi Hz Dly 3 Time before the alarm will react to high generator Secs frequency AMPS Cap Type KVA KW The type of capacity units used for the Genset KW l he full i f th i Capacity 10 6553 20 Selects the full load capacity of the generator in units of CapType 10 150 he trip point for th O Load Lvl 95 Selects the trip point for the overload contact as a percentage of the generator capacity 0 60 mai E O toad Time 10 Time in seconds for which the overload condition is sec present before the overload trips 10 SS 99 h H f h ene O Load RsLvi 85 Selects the restore point for the
7. EE 12 54 1 TO Start the Peseta den gen oo atou di ae kwa ae en dya ea anle os du ae re ae ae San de a ene aaa dees dan dane s ainda 12 54 2 gt TOStOP the genset EE 13 6 Display Operati NA akey des akasan de pedan ente ren aaa ei odepa kara ae os ai aaa ee ide deg 13 6 1 When the ET s seriis sos v se icerken naaa gina 13 6 2 When the genset is running cccecccccssssecessececeeseeeeceeseeeeceeseeeeceseaeecessaeecesseesecseseeaecseseaaeeeseeaaees 13 7 Alarmsand Ed TEE 15 7 1 Inputs Electrical Specflcation ssisirussinsssissasiinias a a aAa ia aiaia 18 7 2 Outputs Electrical Specflcation nano rnnncnnrnnnnnnns 19 8 Load Transfer and Contactor Operation 20 8 1 A E 20 8 2 Battery Charging Alternator Excitation coconcccccccncncnonononoonnnnnnncnnonnonnnnnnnnnnnnnonnnnnnnnnnnnnnnonnnnnnnnnnnnnnns 20 8 3 Battery Voltage Monitoring and Charging Detectlon 21 TT vwati kaa do detan ane ae ak rann de saba RO 21 9 1 Navigating in the Setup menu 22 9 2 A A 22 9 3 Engine CO WA Nesta 23 9 4 Ue a E a PP E A A ES E O E AT R E A E OEE 26 9 5 Contactor A CONN EE 27 9 6 Start Stop COLUM EE 27 9 7 ACS tUP Gre 0 nq EE 28 9 8 1 0 Setup COLUM TE 29 9 9 Comms Communications Setup Column 29 9 10 Event EE 30 9 11 Fault History Log Viewer ColUMM kok kask ane ss ak an sos ko ossi an ab pas kane disan ae sanaaa anaiai 31 10 slufulfle te EE 31 10 1 Unit General SPECIFICATIONS wi cscs kan kat da gi ala a kai n n it n l a gates
8. a a ai kn a be a e ka a a Aa ek aaa i 31 11 Installation and Wiring occccconnnononcnononnnanonnonononcnnnnnnnnnnnnnnncnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnr nn rnnnnnnnnnnnn nano 34 Confidential www ems gen nz Page 2 EMS 326 GENSET CONTROLLER 111 Connector Detail t ee ai nw ka A BE an e a n A pe AE e apa dane ea ne 35 12 Trouble SHOOTING caia SA ele e le a ase n n a kk po ie a a 36 13 Wining OPUONS koi vas ik ana idee yo gen ve kk a Ad 39 Confidential www ems gen nz Page 3 EMS 326 GENSET CONTROLLER Level 1 Genset Controller 1 Introduction The EMS326 is a custom designed controller for small gensets sold in the private market segment The unit incorporates both manually and autostart initiated start and stop sequencing monitors engine and alternator operating parameters and provides both engine and alternator protection in a single integrated package The genset operating parameters are shown by scrolling screens on a backlit 16 Character by 2 line LCD Alarms and warning are also shown on the LCD and supplemented by an alarm LED and Hooter output The unit provides comprehensive monitoring of the engine and generator operating parameters and provides automatic shutdown of the set in the event of damaging conditions In addition to the usual engine safety protections the unit monitors coolant level fuel level canopy temperature and generator l
9. generator to and from the load Contactor outputs are controlled in both Manual and Auto operating modes The Mains contactor output is controlled to deactivate the Mains contactor when the start button is pressed or the autostart input is activated The time of opening can be selected to respond immediately on an autostart input or a start button press It can also be delayed or when the genset is running and able to take load The Generator contactor output will activate only after the Mains contactor has opened and only when the genset able to take load The timing is controlled by the XFR DELAY configuration setting If the genset was started by activating the Autostart input then deactivating the input will move the sequence to the Cool Down state During cool down the Generator contactor output is deactivated and after a delay the Mains Contactor output is controlled to re activate the Mains contactor 8 1 Speed Sensing The unit obtains the speed information from the Generator output 50 60Hz The actual speed input frequency may be displayed by setting the Display Hz option in the Engine column to On This allows the set up engineer to read the sensed frequency and derive the values required for the speed setting items below 8 2 Battery Charging Alternator Excitation The battery charging alternator excitation system is implemented using a burst mode pulse system This ensures reliable self excitation while managing c
10. in the Autostart Lockout state the engine can be restarted by pressing the Start button This is not considered a manual start but rather a release from the Autostart Lockout condition The contactors will be controlled in the appropriate way Phase Reversal The generator has a phase reversal or the wiring is incorrect Low V1 Volts Voltage on genset Phase V1 is Low Low V2 Volts Voltage on genset Phase V2 is Low Low V3 Volts Voltage on genset Phase V3 is Low High V1 Volts Voltage on genset Phase V1 is High Confidential www ems gen nz Page 17 EMS 326 GENSET CONTROLLER High V2 Volts Voltage on genset Phase V2 is High High V3 Volts Voltage on genset Phase V3 is High High Frequency Genset frequency is high Low Frequency Genset frequency is low 7 1 Inputs Electrical Specification Input Type Comment Nominal 12VDC or 24VDC or Station Battery Supply Battery Volts Power Max 6 36VDC OV Common Power OVDC Common Fuel Level Sensor Analog Digital Suitable for either resistive or switch C O F senders Current limited exciting voltage 10V at 10mA approx Engine Suitable for either resistive or switch C O F senders Temperature Analog Digital Sancor Current limited exciting voltage 10V at 10mA approx A Suitable for analog use with EMSO8 temperature sensor or anopy Analog Digital switch C O F input Temperature Current l
11. oil pressure alarm setpoint with the engine not running This warning prevents the engine from attempting to crank with the engine potentially Gd running This may be due to a faulty oil sender or a very tight engine This warning is disabled if Oil Pressure Check before Cranking is set to Off Confidential www ems gen nz Page 37 EMS 326 GENSET CONTROLLER The unit has detected that a speed signal is present with the engine not running This warning prevents the engine from attempting to Tacho Lock Out crank with the engine potentially running This warning can sometimes be caused by ripple generated by mains powered battery chargers The unit has detected that a Excitation is present with the engine not running This warning prevents the engine from attempting to crank with the engine potentially running This warning can sometimes be caused by ripple generated by mains powered battery chargers Excite Lock Out The unit has detected an Autostart signal when not in auto mode AutoStart On SE i indicating the engine needs to be started in Auto mode The Oil Pressure has dropped below the Oil Pressure Warning set Low Oil Pressure A SE a Ap point while the engine is running The Oil Pressure Icon is lit Engine temperature has exceeded the high temperature warning set High Engine Temp point Canopy Temperature has exceeded the high canopy temperature Migne anepi remp
12. setpoint after the Temperature monitoring delay has expired Low Fuel Level Fuel level is less than the warning set point The unit has detected that the fuel sender is open circuit This is only Fuel Level Flt l l a warning and will not shut down the engine The unit has detected that the canopy temperature sender is open Can Temp Fit ae p circuit or has shorted to common No Speed Signal A speed signal could not be detected after the engine had started The time since the last maintenance has exceeded the maintenance time The alarm output is not activated for this warning The Maintenance warning is cleared by pressing and holding the ACK button for 30 seconds If the engine maintenance is carried out prior to the timer expiring pressing the ACK button for 60 seconds will reset the timer Confidential www ems gen nz Page 38 EMS 326 GENSET CONTROLLER 13 Wiring Options z H 3 a 3 5 5 o o o a Q a pel E Evae 2 2 E 5 at aa 5 os 5e as ae 0858 32 ba 52 al DI os os 5 ac ac ac 3 Sa 2 27 Sp E ET ET DO S ES f Do fo fo aa a a ta da B ip Ffankcase rank Crankcase Crankcase Crankcase Crankcase Crankcas Crankcase Crankcase Oil Pressure Sensing Options Temperature Sensing Options Top Mounting Side Mounting Water Level Probe A Water Level Radiator Probe Top Radiator Sde Kee ee NOS ss Note The radiator must be electricall
13. IN Number 1 9999 Setting to Yes will load all configuration items to their Defaults YES NO NO factory default values Note Engine calibration will be lost 9 3 Engine Column Item Range Default Description CrankDis Hz 15 30 Hz 20 Crank Disconnect Frequency RPM Type 2P 4P AP Used to select the number of poles in the alternator ETR Fuel Solenoid Type Fuel Select ETS ETR ETR Energize To Run ETS Energize To Stop Note This item is only displayed when Fuel Select ETS ETS Tries 1 2 2 See Above Maximum Stop Retries for ETS Fuel Control 5 60 Note This item is only displayed when Fuel Select ETS ETS Rest 5 See Above kai Stop Retry Pause time for ETS Fuel Control 5 600 Note This item is only displayed when Fuel Select ETS FuelMax Tm 15 See Above sec A A ZEN Maximum fuel solenoid activation time 0 90 Selects type of oil sensor being used Oil Type 10 180 10 180 Dual station sensors can be used on same analog input 5 0 7 5 10 0 Oil Range 8 5 Used to select the oil sensor full scale in Bar ar 0 2 3 0 Low oil pressure alarm shutdown set point Oil Alarm 1 0 Bar Alarm output activates and engine is shutdown 0 2 OALM i i i i i Oil Warn 15 Low oil pressure warning set point and engine continues Bar to run COF Selects Engine temperature sensor type ETemp Type TS120 TS150 COF Switch Close on Fault TS150 TS120 Sensor with FSD of 1202C Confidential www ems gen nz Page 23 EMS 326
14. Modbus ASCII protocol This port may be plugged into RS232 or RS485 communication adaptors and through these to a modem a multi drop network or auxiliary units such as the EMS930 telecom expander 10 1 Unit General Specifications Overall Dimensions 100 x 120 x 60mm Mounting Hole 92 x 92mm IP rating IP55 front IP20 rear 8 V to 36V DC Supply Voltage l Nominal Automotive Confidential www ems gen nz Page 31 Operating Temperature Storage Temperature Relative Humidity Supply Current AC Voltage Range AC Frequency Range CT current range Overall Accuracy Digital Output Rating Input Reference EMS 326 GENSET CONTROLLER 20 to 70 C 20 to 70 C 95 non condensing Standby Running 0 5A 25 Overload OV Common Displayed Speed Range 0 5000 RPM Kilo Watt Hours 0 999999 9 KWH Oil Pressure Sensor Type Oil Pressure Range Engine Temperature Sensor Type Engine Temperature Range Canopy Temperature Sensor Type Canopy Temperature Range Fuel Level Sensor Type Battery Volts Measurement Set up and Adjustment Confidential Switch Close on fault Resistive 10 to 180 Ohms 500 750 1000 KPa Switch Close on fault Resistive NTC 1202C 1502C 2002C Switch Close on fault Resistive NTC EMSO8 Sensor EMS08 0 100 2C Switch Close to fault Resistive 0 to 90 Ohms Resistive 10 to 180 Ohms Resistive 180 to 10 Ohms 6 to 40 Volts All fe
15. No retries are done o If the unit looses power due to battery voltage drop during cranking and the engine fires then on regaining adequate battery voltage the unit will continue to allow the engine to run e RUN UP o When the engine starts the display shows Run Up with a count down in seconds This allows the engine measurement system to stabilise Over speed and loss of speed signal are the only parameters checked during Run Up e WARM UP o Allows the engine to stabilise at full speed before going on load Oil pressure and Over speed are monitored The display shows Warm Up with a countdown time e RUNNING o The display shows RUNNING Operating parameters are scrolled onto the display Confidential www ems gen nz Page 12 EMS 326 GENSET CONTROLLER 5 4 2 Tostop the genset Push the stop button briefly The unit will perform a stopping sequence as follows e STOPPING o The display will show Stopping with a countdown time o If ETR fuel control has been selected the Fuel output will be de energised o If ETS fuel control has been selected then the Fuel output will be energised for the Max Fuel Time or until the engine stops The stopping process will retry if the engine fails to stop the first time During the ETS Rest period the Fuel output is deactivated o The fuel output is controlled until the engine stops rotating and oil pressure decays If the Oil Press
16. The unit has detected that the Oil Pressure sender has become open circuit Normally this indicates a faulty sender or broken wiring This will only shut down when the Oil System is set to Sender Engine Temp Fit The unit has detected that the engine temperature has not risen to 50 degrees within the first 5 minutes of running or the temperature sensor has shorted to common Normally this indicates a faulty temperature sender or broken wiring Oil Temp Fit The unit has detected that the Oil temperature sender has become open circuit High Canopy Temp The unit has detected a high canopy temperature Belt Broken The unit has detected a broken belt The following warning messages indicate potential problems When a warning occurs the message associated with the warning is displayed Warnings clear automatically when the warning condition is cleared No Excitation Excitation voltage is low when engine is running This indicates a probable charging fault or broken belt Low Charge Volts Battery Voltage is below the charging voltage setpoint when the engine is running Indicates that the alternator is not charging the battery Under Voltage Battery Voltage is below the low battery setpoint Over Voltage Battery Voltage is above the high battery volts setpoint This may be due to a faulty regulator or battery charger The unit has detected that the oil pressure is above the
17. ak Phase 3 Amps CT Loop 13 Amps 5A RMS Continuous 6 25A Peak 7 2 Outputs Electrical Specification Output Type Comment Excitation Current 200mA burst mode pulsed current controlled output e 300mA Open Drain protected coil drive Max 36VDC e pen Fuel Solenoid raih This output is used to maintain the fuel solenoid activated for running or stopping duty 300mA Open Drain protected coil drive Max 36VDC This output is used to control the crank relay coil The crank o relay should be sized for the crank contactor current It is pen Crank Drain recommended that the crank relay is located in the wiring loom near to the starter motor This position removes the need for high current wiring to the control box and thus leads to lower cost Open 300mA Open Drain protected coil drive Max 36VDC Contactor A a Drain This output is used to switch the load from the mains Open 300mA Open Drain protected coil drive Max 36VDC Contactor B A Drain This output is used switch the load to the generator Alarm Sounder Open 300mA Open Drain protected coil drive Max 36VDC Confidential www ems gen nz Page 19 EMS 326 GENSET CONTROLLER Drain This output is used for an external sounder or horn 8 Load Transfer and Contactor Operation The unit provides for both Mains and Generator contactor control even though in many applications this function will not be used instead an MCB is used to switch the
18. atures may be adjusted using set up buttons and LCD menu or via a PC Windows based utility www ems gen nz Page 32 EMS 326 GENSET CONTROLLER Terminations Amp DUAC Molex Mini Fit JNR Environmental Tests EC68 Part2 Testing EMC Compliance EN50081 1 EN50081 2 IEC6100 4 3 Electrical Safety AS 3100 and AS 3260 Confidential www ems gen nz Page 33 EMS 326 GENSET CONTROLLER LE 6 y 1 MF 11 4 o sA 13 0 5A Danger High Voltage Genset NB The unit is a complex electronic device and caution should be taken to ensure correct wiring before power is applied The unit is fitted with 2 6 and 8 way Molex Minifit or equivalent socket connectors for which mating plugs can be selected from the Amp PE or TPK range The UNIT is also fitted with 4 way Mate N Lok or equivalent socket connectors for which mating plugs can be selected from the Molex or Tyco range The majority of UNIT wiring is low current for which 0 75mm wire is sufficient This excludes the CT wires i1 i2 and i3 for which 1 5mm wire should be used Confidential www ems gen nz Page 34 EMS 326 GENSET CONTROLLER 11 1 Connector Detail J1 Data Port Programming and Auxiliary Unit data port NB Connect ONLY manufacturer approved equipment to this port Pin Connection Common ve This connection must be made directly to the engine block for lowest
19. bled if not required by setting Excite Dis to NO For systems where a battery charging alternator is not fitted turning off the excitation warning will disable the excitation system 8 3 Battery Voltage Monitoring and Charging Detection A battery is considered charged if assuming a 12V system x2 for 24V its terminal voltage is above 13 1Volts Typically a fully charged battery has a terminal voltage of 13 6V above this and the battery is being overcharged During cranking the large discharge current will reduce the battery terminal voltage below 12 5V and the battery cannot increase the terminal voltage again without the assistance of a charger This sequence provides a useful mechanism to determine if a battery is being actively charged Many applications have a current meter to show charging current Such meters provide very limited value as a good battery will recover its terminal voltage very quickly and then be maintained with a very low level of trickle current This trickle current is usually too small a percentage of the current meters range to provide any useful information The unit constantly measures the battery terminal voltage and can detect proper charging and discharging performance Voltage readings are taken and compared against an inbuilt voltage profile If the battery terminal voltage falls outside the critical voltages for each action then a battery warning is indicated During standby and particularly where an on
20. electrical noise This J2 DC Power Supply connection must not have currents other than the controller currents flowing and must be exclusively for the controller Battery ve This connection must be made directly to the 2 positive terminal of the battery for best performance Do not make this connection to the positive terminal on the Starting Motor Pin Connection 1 Fuel Level Input 2 Coolant Temperature Input J4 Inputs 3 Canopy Temperature Input Ma E a 4 Oil Pressure Input E 5 Water Level Sensor 6 Not Used 7 Auto Start Input 8 Emergency Stop Input 9 Oil Pressure Switch Input 10 I P1 User Defined Input J3 Outputs Pin Connection 1 Fuel Output 2 Crank Output Ke 3 Sounder Output 4 Contactor A Output Confidential www ems gen nz Page 35 EMS 326 GENSET CONTROLLER 5 Contactor B Output 6 Excitation Output Pin Connection J5 AC Inputs for Genset 1 eee ace eed a O 3 2 Gen AC Phase 2 Yellow 3 Gen AC Phase 3 Blue 4 Gen AC Neutral CT Use Genset CT1 CT2 amp CT3 Gen Phase 1 Current Red Current Transformers 1 11 i2 i3 cri CT2 CT3 A Gen Phase 2 Current Yellow A Gen Phase 3 Current Blue 12 Trouble sho
21. em is not working as expected Speed Fault Check the associated speed sensor wiring and external influences such as poorly operating battery chargers and poorly filtered UPS systems connect to the load Speed Detected Speed signal is unexpectedly present Check the associated speed sensor wiring and external influences such as poorly operating battery chargers and poorly filtered UPS systems connected to the load Check electrical safety earthing systems Check associated communications networks are isolated and not part of an unexpected earth loop Oil Detected Oil Pressure is unexpectedly present Check the Oil Pressure Sensors and associated wiring Check the Oil filter system is not blocked Check the engine is not running with a failed speed sensing system E S Lock out The emergency stop input has been activated Deactivate the emergency stop input then press the stop button to clear this alarm A S Lock out If the Stop button is pressed while running it is considered an emergency stop and the unit will stop the engine and enter the Autostart Lockout state This prevents the engine from starting again while the Autostart input remains activated The Autostart Lockout state is self resetting upon deactivation of the Autostart input If the engine was stopped for a real emergency then the emergency stop switch should also be activated to ensure the engine will not start inadvertently If the unit is
22. es 4 3 Generator Monitoring AC Phase Voltage Monitors 1 2 or 3 phases of AC voltage with optional configuration parameters and clear LCD status messages AC Phase Current Monitors 1 2 or 3 phases of AC current with optional configuration parameters and clear LCD status messages Uses externally fitted 5A CTs AC Phase Frequency Monitors 1 2 or 3 phases of AC Frequency with optional configuration parameters and clear LCD status messages AC Phase Reversal Monitors Genset AC for Phase reversal with optional configuration parameters and clear LCD status messages AC Loading Monitors AC load as a percentage of full load with optional configuration parameters and clear LCD status messages AC Power Metering Monitors AC power output KW KVA KVAR KWH with optional configuration parameters and clear LCD status messages 4 4 System LED Indications Confidential www ems gen nz Page 7 EMS 326 GENSET CONTROLLER Alarm Red LED indication of system alarm 4 5 System LCD Displays on n On Setup menu System configuration menus Start Up Clear step by step start up sequencing messages Shutdown Clear step by step shutdown sequencing messages Transfer Clear step by step load transfer messages 4 6 Engine LCD Displays Low oil pressure Engine oil pressure low High engine temperature Engine temperature high
23. g capture starting and stopping events against the Engine hour meter Additionally the start and stop fuel levels are also captured This keeps a record of fuel consumption and running times The Event log items cannot be deleted or changed except by using the EMS Windows setup utility program Confidential www ems gen nz Page 30 EMS 326 GENSET CONTROLLER This option is used to display the most recent 20 start and stop events with an engine hours operating time stamp Fuel levels are also recorded and can be E L e i GES Se used to verify replenishment and consumption rates P The Events are displayed with the most recent at the top of the list The list can be scrolled through like the other setup items 9 11 Fault History Log Viewer Column Fault history log items cannot be deleted or changed except by using the EMS Windows setup utility program This option is used to display the most recent 50 stop alarms Alarms are displayed with the most recent at the top of the list The list can be scrolled through Stop Alarm Log like the other setup items The events are indexed to the run hours value at the time of the alarm The LCD toggles between the Stop Alarm description and the Run Hours value Exit Exit Press the STOP button to Exit 10 Communications The unit is fitted with a fully functional communications port which communicates using
24. ich might damage the battery control relays or the controller Engine shutdown is recommended to minimise the risk of damage and fire The engine was running below the under speed set point Under Speed Check for overloading Check fuel system The engine was running above the set point Over Speed Check governor system Check power take off couplings The speed signal indicates the engine is grossly over speed Hirev Alarm Check Governor system Water Level Low The radiator water level is below the required level The water level needs topping up The engine has failed to start Start Fail Check Fuel supply check battery condition and check air filters l The engine has failed to stop Stop Fail Check stop solenoid check rack operation The Oil Pressure sensor system is not functioning as expected Oil P Fault Check oil pressure sensor and associated wiring The Engine Temperature Sensor is not functioning as expected Eng T Fault i l Check engine temperature sensor and associated wiring The Canopy Temperature Sensor is not functioning as expected Can T Fault Check the canopy temperature sensor and associated wiring Confidential www ems gen nz Page 16 EMS 326 GENSET CONTROLLER The Fuel Level Sensor is not functioning as expected Fuel L Fault Check the Fuel Level Sensor and associated wiring The Speed Sensing syst
25. imited exciting voltage 10V at 10mA approx Suitable for either resistive or switch senders Optionally Oil Pressure Sensor Analog for protection or display only Current limited exciting voltage 10V at 10mA approx Suitable for probe or switch input Open Circuit Active Low Water Level Digital i l Frequency output 500Hz Galvanically isolated Suitable for switch input Connect to OV Active Autostart Digital Current limited exciting voltage 10V at 10mA approx Suitable for switch input Connect to OV Active Emergency Stop Digital Current limited exciting voltage 10V at 10mA approx Used for backup Oil Pressure protection Configurable for Oil Pressure Switch Digital N O or N C operation Current limited exciting voltage 10V at 10mA approx Yet to be defined Connect to OV Active User Digital We es Current limited exciting voltage 10V at 10mA approx Excitation Internal High Impedance Confidential www ems gen nz Page 18 EMS 326 GENSET CONTROLLER Battery Voltage Internal High Impedance Generator Phase 1 Volts GL1 Voltage Max 350VRMS Generator Phase 2 Volts GL2 Voltage Max 350VRMS Generator Phase 3 Volts GL3 Voltage Max 350VRMS Generator Neutral GN Voltage Max 350VRMS Phase 1 Amps CT Loop 11 Amps 5A RMS Continuous 6 25A Peak Phase 2 Amps CT Loop 12 Amps 5A RMS Continuous 6 25A Pe
26. line charger is not available monitoring the health of the battery is vital The unit regularly wakes and measures the battery voltage if it falls below the set point a warning is issued to ensure the operator is aware of the need for battery recharging 9 Set up In the factory environment the unit can be setup by the EMS Cloning Utility or by the EMS Windows setup utility In the field adjustments to the unit can be made using the buttons on the front panel The EMS Windows setup utility and the EMS Cloning options are detailed elsewhere and only the field adjustment method is discussed here To enter set up when the unit is showing Ready press and hold the ACK button for 20 seconds When the unit enters set up mode the LCD will show Setup and optionally request a PIN number if this option is enabled Confidential www ems gen nz Page 21 EMS 326 GENSET CONTROLLER 9 1 Navigating in the setup menu The setup menu comprises a range of columns where each column comprises of a list of items and each item has a range of settable values 1 0 E T tart AC C Event t System SEH d Con A n Confi S sak ae Exit e S Stp Setup S ms Log Alm Column Headings are as follows The STOP button is used to select the next column or to increment a value The START button is used to select the previous column or to decrement a value The ACK button scrolls
27. nder speed is not monitored Time to allow large engines to completely stop rotating D E 3 600 de and oil pressure decline when stopping During this time P sec if Energize to Stop option is chosen the fuel solenoid will activate up to the Fuel Max Time The time that oil pressure and speed signals are absent R 2 2 4 SIOP RESI g for before the unit considers the engine to be stopped Confidential www ems gen nz Page 26 EMS 326 GENSET CONTROLLER sec O Sounder remains on indefinitely until 0 600 acknowledged Hooter Time 0 sec Value Sounder maximum time is the value in seconds OFF enn 50 1000 250 Hours between Maintenance Requests hrs 9 5 Contactor A Column Contactor A unload mode Immediate Unloads contactor A at the beginning of i the Start Delay Immediate Unload Delay Immediate Delay Unloads contactor A after a delay see next Running item or when the genset is ready for load whichever is the sooner Running Unloads contactor A when the genset is ready for load Note Only displayed if Unload is set to Dela Unload Dly as 5 S A leh l y sec Delay for Delayed Unload mode see above 0 10 Delay time between break and make operations for A Xfr Delay 5 sec to B and B to A contactor control Enables Contactor A control based on the status of the Autostart input while the unit is in the READY state Ke NO ges This feature allows the
28. ne Temperature Monitors engine temperature with optional configuration parameters and clear LCD status messages this ensures the engine temperature remains within configured limits Exceeding these limits will result in automatic engine shutdown to prevent damage Battery Voltage Monitors engine battery voltage with optional configuration parameters and clear LCD status messages this ensures the battery Confidential www ems gen nz Page 6 EMS 326 GENSET CONTROLLER voltage remains within configured limits Battery Charging Monitors engine battery charging status and clear LCD status messages this ensures the battery is charged when the engine is running Radiator Water Level Monitors engine radiator water minimum level with clear LCD status messages this ensures the radiator water level remains sufficient Low water will result in automatic engine shutdown to prevent damage Fuel Level Monitors engine fuel level with clear LCD status messages Low fuel level will result in automatic engine shutdown to prevent damage Canopy Temperature Monitors engine canopy temperature with optional configuration parameters and clear LCD status messages this ensures the engine canopy temperature remains within configured limits Exceeding these limits will result in automatic engine shutdown to prevent damage Running Hours Records engine run hours with clear LCD status messag
29. oading to provide even more comprehensive protection The unit incorporates an Event Log 20 events and a Stop Alarm Log 40 events to give the field service engineer the operational history and alarm history for easier diagnostics In the factory environment the unit is configured by cloning through a PC system Field specific parameters can be adjusted by using the front panel buttons and an inbuilt menu system 2 Benefits e Reduces system cost o Integrates engine gauges and AC metering into one unit o Minimises control panel wiring offering reduced material and labour costs e Reduces warranty costs by providing comprehensive engine and generator protection and a maintenance due timer e Flexible the unit can be customised by PC cloning for individual genset model characteristics and fitments e Includes communications port for remote monitoring applications or dual station operation Confidential www ems gen nz Page 4 EMS 326 GENSET CONTROLLER 3 Physical Form EEN arity dzee E E Ee ia e ei Tann WI link LEH Ven de Manual Alarm Auto Test Front View o ZE E Danger High Voltage Genset CE Back View Confidential www ems gen nz Page 5 EMS 326 GENSET CONTROLLER 4 Functions 4 1 System Protection Shutdown Automatic preventative engine and genset shutdown in the event of abnormal ope
30. oting The unit displays the following messages when an alarm occurs Alarms shut down the engine set the alarm output and flash the alarm indicator The alarm indications can be cleared after the genset has stopped by pressing the stop button Oil pressure has not reached the Oil Alarm set point Oil Alarm at Low Oil Pressure the end of the run up time or has dropped below this value when the engine is running Low Fuel Level Fuel level is less than the minimum value set point Engine temperature has exceeded the high temperature set point High Engine Temp The temperature icon turns on This message may also be shown as High Water Temperature depending on temperature system setup Oil temperature has exceeded the high temperature set point The High Oil Temperature i oil pressure icon turns on Low Water Level Water Level is below the water level very low level Under speed Engine speed has dropped below the under speed set point Over speed Engine speed has exceeded over speed set point Confidential www ems gen nz Page 36 High Rev EMS 326 GENSET CONTROLLER Engine has exceeded safe operating speed No Speed Signal Engine has lost speed signals while running Start Failure The engine has failed to start Stop Failure The engine has failed to stop E S Lock out The emergency stop input has stopped the engine Oil Pressure Flt
31. over oad condition as a percentage of the generator capacity 0 20 Time in minutes for which the restore condition O LoadRsTm Mi 5 must be present before the overload condition is in restored 9 8 I O Setup Column 1 P1 OFF Belt Break Earth Fault BeltBreak Selectable Digital Input Alarm shutdown function on input activation with specific LCD message LCD message Belt Break LCD message Earth Fault 9 9 Comms Communications Setup Column Confidential www ems gen nz Page 29 EMS 326 GENSET CONTROLLER Comms ID 1 240 116 Comms Address Required for remote communications 1200 2400 4800 Baud Rate 9600 9600 Comms Port Baud Rate 19200 38400 57600 Data Bits 7 9 8 Number of Data Bits Even Parity Odd None Parity Select None Stop Bits lor 2 1 Number of Stop Bits RS232 Handshaking Mode None None No RTS CTS control 3 wire connection UART Mode Modem None Modem Uses RTS CTS flow control 5 wire connection LAN LAN The unit controls RS485 direction with the EMS18 or EMS19 for multidrop applications OFF Alm DialOut daf Off Allocates the phone number for alarm dial out This option is used to display the most recent 10 Alarm alarms Alarms are displayed with the most recent Description at the top of the list The list can be scrolled through like the other setup items 9 10 Event Log The event lo
32. rating conditions with optional configuration parameters and clear LCD status messages Manual Start In response to the front panel pushbutton performs a fully sequenced engine start with optional configuration parameters and clear LCD status messages Manual Stop In response to the front panel pushbutton performs a fully sequenced engine stop with optional configuration parameters and clear LCD status messages Auto Start In response to a digital input performs a fully sequenced engine start with optional configuration parameters and clear LCD status messages Auto Stop In response to a digital input performs a fully sequenced engine cool down then stop with optional configuration parameters and clear LCD status messages Emergency Stop In response to a digital input performs a fully sequenced engine stop with optional configuration parameters and clear LCD status messages 4 2 Engine Monitoring A ES Over Under Speed Monitors engine speed with optional configuration parameters and clear LCD status messages this ensures the engine speed remains within configured limits Exceeding these limits will result in automatic engine shutdown to prevent damage Lubrication Oil Pressure Monitors engine oil pressure with optional configuration parameters and clear LCD status messages this ensures the oil pressure remains within configured limits Exceeding these limits will result in automatic engine shutdown to prevent damage Engi
33. run for longer than the maintenance time A message is also displayed every 5 seconds on the LCD Once the maintenance timer has expired pressing the button for 30 seconds will reset it Maintenance Minus current indicates that the current measured on Lx x being 1 2 or 3 is reversed This is probably due to reversed CT wiring or importing power Minus Current Lx Overload Active The overload output is active Alarms are indicated by fast flashing of the alarm LED and displaying the appropriate message on the LCD Oil Pressure Low The oil pressure went below the alarm setpoint while running Confidential www ems gen nz Page 15 EMS 326 GENSET CONTROLLER Check oil level and replenish Check for blocked oil filter Engine Temp High The engine temperature went above the alarm setpoint while the engine was running Check for over loading Check cooling air flows Check coolant level Canopy Temp High The Canopy Temperature went above the alarm setpoint Check cooling air flows Check for overloading Fuel Level Low The Fuel Level is below the alarm setpoint The engine is stopped to prevent air and dirt infiltration to the engine Replenish the fuel Battery Voltage High The battery voltage went above the setpoint High battery voltage usually indicates that the battery charging alternator has failed and it is producing a voltage wh
34. s Oil Water i Oil Oil temperature monitoring Engine Air Engine air temperature monitoring Yes charging alternator excitation failure warning YES enabled Excite Warn YES NO No charging alternator excitation failure warning disabled Confidential www ems gen nz Page 25 EMS 326 GENSET CONTROLLER Yes uses successful charging alternator excitation as a YES secondary crank disconnect signal to prevent over Excite Dis NO YES cranking No Excitation Disconnect function disabled On Engine protection functions are enabled Normal setting Off All protection shutdown mechanisms for the engine are disabled Warnings and Alarms continue to OFF be indicated Stop on Alm ON ON Off should only be chosen for mission critical applications when shutdown is not permitted and the engine can run to destruction Only configurable via the PC configuration Software 9 4 Timers Column 1 30 Crank Time 10 Maximum cranking time sec 3 50 l Crank Rest 10 Delay between cranking retries sec Crank retries Crank Tries 1 10 3 Manual start sequencing will not retry Oil pressure Temperature Underspeed and Overspeed 2 60 checking is disabled to allow these to stabilize during the Run Up 3 Se l sec starting process Hirev is active to protect against a jammed governor 2 60 Time for the engine to warm prior to stepping to full Warm Up 10 speed SS U
35. the unit waits for a Start request Start Button or Auto Start Input during which time it will display READY 5 3 1 Ready When the unit is in READY all measuring systems and display systems are turned on The unit remains on for 1 minute and if the genset is not started in that time the unit goes into sleep mode to conserve battery power In this mode the unit wakes periodically to check for any unusual conditions and if it finds none it goes back to sleep otherwise it alarms accordingly Any activity on the buttons immediately wakes the unit and the appropriate action is taken Pressing the STOP button while the unit is asleep immediately wakes the unit and scrolls all engine and generator parameter screens This allows reading of battery voltage fuel level and run hours KWH etc 5 3 2 Mode Selection The unit may be operated in Auto Manual or Test modes In Manual mode the unit responds only to the manual push button and may control A and B contactors if this option has been enabled In the Auto mode the unit responds to the autostart input Scheduler or Remote Starts and controls A and B contactors In Test mode the engine responds only to the manual start button and runs for a preset test time if configured Contactors are not controlled In all three modes the engine can be stopped with the Stop button The operating mode of the unit is selected by pressing the mode button For each press of the button the mode of the
36. under control Confidential www ems gen nz Page 9 EMS 326 GENSET CONTROLLER 5 Operation Front Layout 5 1 Buttons Start button Menu Previous Gi 1 Used to initiate generator start sequence 2 Used as system menu previous or value down button Stop button Menu Next 1 Used to initiate generator stop sequence 2 Used as system menu next or value up button Accept button Menu Up 1 Used to accept system events and silence the sounder 2 Used as system menu scroll up button Mode button Used as a system menu down button As a mode button it selects one of the following operating modes Manual The DG can only be started and stopped manually 6 Auto The DG is started and stopped by using the Auto Start Input Test The DG is started manually but the contactors do not change 5 2 LEDs Confidential www ems gen nz Page 10 EMS 326 GENSET CONTROLLER Alarm Indicates system alarm Manual The DG can only be started and stopped manually pi Auto The DG is started and stopped by using the Auto Start Input O Test Test The DG is started manually but the contactors do not change 5 3 Initial Power Up On power up the unit displays Logo The unit then displays the Serial number Application Code and Firmware version After the initialisation process is complete
37. unit is cycled round to the next mode As the modes change the display shows the new mode and the appropriate mode LED is lit Confidential www ems gen nz Page 11 EMS 326 GENSET CONTROLLER 5 4 Manual Operation 5 4 1 Tostart the genset When the display is showing READY press the start button momentarily to start the genset The READY state implies the engine and generator parameters are as expected for a stationary genset If the conditions are not as expected an appropriate warning or alarm is displayed on the LCD The warning or alarm condition must be cleared before the genset can be started The unit will perform the starting sequence as follows e FUEL ON o If ETR Energise To Run fuel control is configured the unit will control the fuel output and display FUEL ON and the proceeds to the CRANK state o For ETS Energise To Stop the sequence does not activate the output but proceeds immediately to the CRANK state e CRANK o The crank output is activated and the display shows Cranking with a count down time o The crank output is deactivated when the unit has detected a speed signal above the crank disconnect speed specified in the settings or has detected oil pressure above the minimum oil pressure specified in the settings or Excitation is present o If the genset does not start the LCD will show Stopping control the Fuel and Crank outputs accordingly and return to READY
38. unit to be set to Manual mode YES and maintain load disconnection from the mains in the event of a mains failure An LVM is usually connected to the Autostart input 9 6 Start Stop Column Autostart Delay Time The time between the detection of an Autostart activation and the initiation of starting Start time units are set in the next item Start Delay 0 600 2 Confidential www ems gen nz Page 27 EMS 326 GENSET CONTROLLER ene Units for the Autostart delay time Start Units SEC Sec Seconds MIN Min Minutes 1 600 Selects the time for which the Autostart has to be StartRestor 5 restored before the start delay timer is reset and SER starting aborted 0 30 Prestart warning time If an output has been Start Warn 2 assigned to a Start Warning function then it will Jen turn on for this time period before a start occurs 0 3600 Run On Time During run on reactivation of Run On 60 Autostart input will return the engine to running SER state The generator remains on load 0 3600 Cool Down Time Used to cool the turbo and Cool Down 60 i j sec alternator as required The generator is off load 9 7 AC Setup Column 1 1 Phase Genset system VPhases 1 3 3 2 2 Phase Genset system 3 3 Phase Genset system CT Ratio 1 2000 12 Selects the load CT ratio ON PhaseRev FE ON Enables test for correct generator phase sequence
39. up the item list The MODE button scrolls down the item list Once the bottom of the column has been reached the unit displays Top Press Stop Pressing the STOP button takes the user to the top of the column Setup mode automatically terminates if no button in pressed for 60 seconds or when the exit item is accessed 9 2 System Column rem re Ion em 0 13 6 Contrast LCD Contrast OFF Display Cycle Time sets frequency of display update If set to Off display scrolling is disabled Disp Update 2 99 3 For manual scrolling press the ACK button for up and the sen hidden button for down Disp Hold 30 Display hold time Sets the duration of display hold sec when the alarm button is pressed to halt the scrolling 0 720 The unit will wakes up after this interval time and checks Sleep Time 0 for alarms etc When set to O the unit will never enter min sleep mode Show Hz Yes No Yes Shows or hides the display for Hz Show KWHr Yes No Yes Shows or hides the display for KWHr Show KW Yes No Yes Shows or hides the display for KW Show PF Yes No Yes Shows or hides the display for PF Confidential www ems gen nz Page 22 EMS 326 GENSET CONTROLLER Site ID 0 30000 0 Site Identifier May also be used for asset numbering Security ON OFF OFF ON Prevents configuration editing OFF PIN 1 Unit P
40. ure has not decayed by the end of the Max Fuel Time the fuel output is deactivated and the controller waits until the oil pressure has decayed or for the remainder of the Stop Time The speed must remain at zero and the oil pressure must be below the alarm set point for the Stop Rest Time before the engine is considered stopped o If the genset does not stop then the alarm output is activated and STOP FAIL is displayed on the LCD e READY o The engine has stopped and is ready to start again as required 6 Display Operation 6 1 When the genset is ready 6 2 When the genset is running When the genset is starting and stopping the display shows the state of the sequence together with the time remaining before the next state will commence Once the genset is fully running or if the genset is stopped and in READY the running parameters are displayed This includes generator and engine parameters simultaneously on separate displays The unit sequentially scrolls through screens as shown below Then Confidential www ems gen nz Page 13 Then Then Then Then Then Then Then Returns to the first screen EMS 326 GENSET CONTROLLER If warnings are present the associated messages are included in the scroll list and are interleaved with each status display A typical Warning will display is as follows Confidential www ems gen nz Page 14
41. urrent consumption during standby heat dissipation during fault conditions and pulsing the battery charging alternator prior to cranking for improved speed signal output During standby and Ready the alternator excitation is pulsed once per minute to maintain some level of residual magnetism in the alternator but still maintaining minimum power consumption On receiving a start signal the unit pulses the alternator excitation input with a burst of 200mA pulses The pulse width is dependent on the battery voltage This pulse burst establishes a definite magnetic field in the battery charging alternator prior to cranking This ensures a significant speed sensing signal is generated for crank disconnect sensing The alternator excitation is turned off and the engine is cranked without the usual alternator burden loading the cranking process This aids easier starting When the engine has fired and is running more 200mA pulse bursts are applied Given the alternator is rotating at more than the 3000RPM the alternator will achieve self excitation If self excitation is not achieved this process will repeat for a few seconds before the excitation failed warning is given Confidential www ems gen nz Page 20 EMS 326 GENSET CONTROLLER Alternator excitation may also be used as a secondary crank disconnect signal for the case where the speed signal has failed immediately the engine starts to run This feature can be disa
42. y bonded to the crankcase common Water Level Wiring Options bi S 3 KH CR gt ao ago OL 223 552 Gope oc OLE SEE kal o 9 Lu Crankcase Crankcase Canopy Temperature Wiring Options V V V Fuel Sngle Sage Crankcase Crankcase Fuel Solenoid Wiring Options emm d Speed A MPU COMPU TE ees Shield D Battery Excitation wE W Speed A Charging MUST Alternator be used OV Speed Detection Options Confidential www ems gen nz Page 39 EMS 326 GENSET CONTROLLER Load LI L2 13 N E Main Switchboard A e D Earth Barth Losse soiz Ga MCB Lok Neutral EN GN olo O oO M N aaao aaa aalala li jeu e pel Ma1 L y jou S sts M L2 GUS ST M L3 O LU Mechanicalimteriock LZ Log ATOU c oo NO c O NC a GCB Relay MCB Relay lt E e a Con B Typical Contactor Control Confidential www ems gen nz Page 40
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