FILE VER LAST ISSUE LANG. PAGE
GCM02-MT-ING4 NEW.doc c/02 04/03/2003 ENG Page 54 of 57
THE INFORMATION INDICATED IS NOT BINDING AND IS SUBJECT TO CHANGE DUE TO TECHNICAL IMPROVEMENTS WITHOUT
WARNING.
2.19 SERVICE PROCEDURES
2.19.1. SERVICING PROCEDURE
Before proceeding with the functional test :
1. Disconnect the BATTERY and BATTERY CHARGER fuses.
2. Check the connection of the oil pressure switch. If the connection to earth is not present (-B) by means of the oil pressure
switch the motor will not start.
Once installation is complete, check its correctness by performing the procedures advised below:
1. Switch the programming commutator to “stop”.
2. Close the fuses.
3. Check that the Battery LED comes on. If not, the polarity (+/-) on the battery may be incorrect and need inverting, or the power supply
may not be on. WARNING!! Do not give commands. Erroneous connections could cause damage to the power module.
4. Programme the M02 on the basis of the working data and characteristics of the generator:
a. Move switch N°4 to “programming ON” and complete the procedure shown on page 30.
b. If different from the standard 400V 50Hz set the working voltage and frequency.
c. TA ratio ...../5°
d. Overload current – enter the nominal current the generator can supply, increased by 5%.
e. Short circuit current – enter the overload current multiplied by three.
f. If required, activate the special functions (pages 26-30).
g. The Terminal Contact wires may introduce residual voltages into the M02, which generate a value for current that does not
exist. To eliminate this, use the Measurements Menu to zero the Current and press Reset. The M02 carries out self-
programming.
h. Return switch N° 4 to “OFF”.
5. Switch the programming commutator to “ENABLE STARTING”.
6. Since the protective devices are also active in Manual mode, check the probes for fuel reserve, motor temperature, etc. against the
respective indications by disconnecting the conductors on these, and connecting it to the earth temporarily and checking that the
message displayed is correct.
7. Once the alarm check has been completed (in case of faults, see the input/output paragraph), press the START and STOP button
quickly, and check the motor for the correct reaction and the power supply to the solenoid valve and actuator (it is not necessary to start
the unit).
8. Visually check the power connections between the generator and the panel, making sure that the board detects the “motor started” status
via the generator voltage. If this voltage cannot be detected (due to the power connection not being formed properly, or a switch open
along the power supply line), the starter motor must remain active for three seconds after the motor has started.
9. With the commutator switched to “ENABLE STARTING”, press the start button until the motor has started.
10. Wait 20/30 seconds and switch to POWER SUPPLY FROM GENERATOR.
11. Check the rotation direction of the motors in use (invert two phases if incorrect).
12. Set the programming switch back to Enable Starting, the CG contact maker will open and the load will be disconnected.
13. Command manual stoppage.
14. Set the programming switch on POWER SUPPLY FROM MAINS.
15. After at least 15/20 seconds power the control panel with the mains and check the rotation direction of the motors in use again (invert two
phases if incorrect).
16. Set the programming switch in AUTOMATIC mode; check, if by disconnecting the mains, all the starting functions are enabled, power
output and generator protection. When the mains is restored there will be a delay before the lines are switched then a further delay
to allow the motor to cool down.
ATTENTION! If in start phase, the oil pressure switch (9) is not connected and the gen-set doesn’t start.
2.19.2 SERVICING PROCEDURE WITH THROUGH MAINS (GENERATOR DISABLED)
In cases in which the electrical system is started but not the generator, therefore its circuits and battery are practically not powered,
the powering of the electronics by the mains is to be avoided as this does not offer the control and safety devices provided by the
battery
Therefore the BATTERY and BATTERY CHARGER fuses are to be disconnected.
When the generator is enabled again follow the Servicing procedure.
2.19.3. BATTERY REPLACEMENT PROCEDURE
Ø Set the programming switch on Manual Mains mode.
Disconnect the BATTERY and BATTERY CHARGER fuses.
Ø Replace the battery and re-connect fuses and reset program.
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