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12) CHOP. NO CONF.
An alarm similar to no.9, except that here, even though the data is correct, it does
not correspond to a hardware configuration recognised by the H2B. The considera-
tions are the same as for alarm 9 “EEPROM CONF.KO”.
13) WATCHDOG
The test is made in both running and standby.
It is a self-diagnosis test within the logic.
If an alarm should occur, replace the logic.
14) COIL SHORTED
There is an overcharge or a short circuit towards the positive of the battery on the
during negative contactor output.
Possible causes:
a) The coils of the contactors are in short circuit or they absorb more than 6A con-
tinue.
b) Short circuit with +batt of the cabling which cores out from the contactor connec-
tor
The alarm shows an occurred overcharge and not the fail of a chopper component.
When the external cause is removed it is possible to restart again.
15) DRIVER SHORTED
The test is carried out in standby. It checks that the during voltage of the drivers
commanding the contactors is at a coherent value with the forecasted state.
Possible cause:
a) Logic failure
b) Drivers broken because of an overvoltage in the cabling of the negative contac-
tors. Replace the logic after having removed the cause.
H2B lifting + 3rd motor
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