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 GENSET CONTROL UNIT 

 

CAM-335 

 

Developed to equip automatic emergency panels. 
It controls and operates genset, connecting the power user to the mains or generator. 

 
 

USER’S MANUAL 

 

 
 
 
 

 

 
 

Functions: 

 
 

 
 
 

Complete  with  backlit  graphic  display  with  touch 
screen 

to view: 

 

Three voltmeters for the mains. 

 

Three voltmeters for the generator. 

 

Three mains/generator ammeters. 

 

Mains/generator frequency meter. 

 

Generator tachometer. 

 

Mains/generator  kW  (active),  kVAR  (reactive) 

and kVA (apparent) powers. 

 

Battery voltmeter. 

 

Fuel level gauge. 

 

Water/oil thermometer. 

 

Oil pressure gauge. 

 

Total hour-meter. 

 

Partial hour-meter. 

 

Start-ups counter. 

 

 

Automatic monitoring of faults with display messages. 

 

Complete  three-phase  voltmetric  control  of  mains  and  genset  (undervoltage,  overvoltage,  phase  asymmetry, 
incorrect phase sequence, underfrequency and overfrequency). 

 

Texts in 7 languages: Italian, English, French, German, Spanish, Portuguese and a programmable language. 

 

CAN Bus Connection SAEJ1939. 

 

RS232, RS485 serial ports and USB. 

 

MOD Bus RTU Protocol. 

 

4-maintenance management. 

 

Management of rental hours. 

 

Remote controls (start, stop, EJP). 

 

Generator start and stop on power demand. 

 

Ability to start generator when the battery charge is low. 

 

Option of associating inputs and outputs with different functions. 

 

Glow plug preheating management. 

 

Management of refuelling of working tank from storage tank. 

 

Clock for programming genset starting or stopping. 

 

Automatic test. 

 

Anomaly log. 

 

Option of password protected programming. 

 

Dimensions (LxHxW) 157x109x74mm 

 

 
 
 
 

Summary of Contents for CAM-335

Page 1: ...messages Complete three phase voltmetric control of mains and genset undervoltage overvoltage phase asymmetry incorrect phase sequence underfrequency and overfrequency Texts in 7 languages Italian Eng...

Page 2: ...e manual as an attachment CHRONOLOGY OF MANUAL REVISIONS Date Revision Description Page 27 07 2015 1 00 First release 05 09 2016 1 05 MAX mains voltage present delay 9999 sec 12 technical prog 10 10 2...

Page 3: ...d in C or F Oil pressure expressed in BAR or kPa Engine revolutions RPM Total hour meter Partial hour meter Start ups count Starting failure counter Maintenance expirations Rental hours expirations Ca...

Page 4: ...t if function is enabled Anomalies Clock Information about the control unit The two arrows are used to scroll through the instrument groups on the display or to select the sub menus under the settings...

Page 5: ...nts individually simply touch the display on the relevant instrument For example touching the D icon with your finger opens the menu that displays the individual instrument To move inside the groups o...

Page 6: ...engine running and with correct generator voltage and frequency once the G S VOLTAGE PRESENT DELAY has elapsed the generator contactor is closed When operating the genset is protected from any anomali...

Page 7: ...ot be run if there is an anomaly The automatic test can be performed in two ways WEEKLY the test will be run weekly at the time and on the day set MEASURED the test can be programmed to run at cycles...

Page 8: ...set beforehand If programmed stopping is also achieved with PROTECTION IN MANUAL bypassed and with the PROTECTION INHIBITION input active The procedure for resetting expired maintenance is to be perfo...

Page 9: ...rticular problem occurred in the engine If CAN Bus line connection between the two control units is interrupted the message CAN Bus ANOMALY will appear The instruments managed and displayed by the CAM...

Page 10: ...ge asymmetrical voltages incorrect phase sequence under frequency and overfrequency Mains voltmetric relay when each parameter has been accepted individually after the mains voltage present delay has...

Page 11: ...7 levels is given below 1 The operator can read all the settings but cannot edit them 2 Access in editing mode to rental hours and history log from maintenance hours 3 Access only for resetting expir...

Page 12: ...________________________________________________________________ ELCOS Parma Italy CAM 335 Valid for firmware revision 1 14 and above Page 12 of 20 CONNECTION DIAGRAM Basic diagram for illustration pu...

Page 13: ...re cable not longer than 40 metres For additional details request the diagrams for the specific engines In the manual for the control unit ECU ECM read if inserting the 120ohm 1 4W termination resisto...

Page 14: ...he programming items For example Press to confirm the selection The following appears Wait for a few seconds The chosen parameter is now programmed in the control unit The settings are stored in a non...

Page 15: ...r When programming a binary parameter enabled disabled for example enabling the weekly automatic test press to enable or disable the parameter For example or Press to confirm the value Programming a n...

Page 16: ...W 100 PR ENGLISH FRENCH GERMAN SPANISH PORTUGUESE CUSTOM CLOCK CALENDAR Standard Calendar clock adjustment TELEPHONE NUMBERS TELEPHONE 1 16 digits Empty Telephone numbers to which text messages will b...

Page 17: ...NERATOR NOT DELIVERING Although running the genset does not deliver voltage 228 GENERATOR CONTACTOR FAULT The generator contactor does not open or close 230 GENERATOR PHASE SEQUENCE The sequence of th...

Page 18: ...asurement range 45 85Hz Accuracy 0 1Hz Amperometric inputs Measurement range 20mA 6Aac Amperometric transformer ratio 5 Maximum displayable current 4800Aac Accuracy 1 Digital outputs Type of output Po...

Page 19: ...nical strain Do not let cuttings of copper conductors or other metal residues drop onto the control unit Never disconnect the battery terminals while the engine is running Strictly avoid using a batte...

Page 20: ...UEST Type Item Code EXPANSION MODULE MDE 088 00242269 ETHERNET INTERFACE ZE 100 00070227 GSM MODEM AMD RB900 PRO 00070218 Programming software ZW SMART 00070212 DOCUMENTATION ON REQUEST Downloadable f...

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