Page – 110/155 AF6ZP0CA – COMBIAC0 & ACE0 2uC – User Manual
current from the capacitors-charging circuit, thus preventing the caps
from charging well. Check if a lamp or a dc/dc converter or an auxiliary
load is placed in parallel to the capacitor bank.
- The charging resistance or PTC may be broken. Insert a power
resistance across line-contactor power terminals; if the alarm disappears,
it means that the charging resistance is damaged.
- The charging circuit has a failure or there is a problem in the power
section. Replace the controller.
CHECK UP NEEDED (MDI/LED code = 0)
Cause:
This is a warning to point out that it is time for the programmed maintenance.
Troubleshooting
:
Turn on the CHECK UP DONE option after that the maintenance service.
COIL SHOR. EB (MDI/LED code = 76)
Cause
This alarm occurs when an overload of the EB driver (output NEB A4)
occurs.
Troubleshooting
- Check the connections between the controller outputs and the loads.
- Collect information about characteristics of the coil connected to the
driver and ask for assistance to a Zapi technician in order to verify that
the maximum current that can be supplied by the hardware is not
exceeded.
- In case no failures/problems have been found, the problem is in the
controller, which has to be replaced.
COIL SHOR. EVAUX (MDI/LED code = 21)
Cause:
This alarm occurs when an overload of the EV drivers occurs.
Troubleshooting
:
- Check the connections between the controller outputs and the loads.
- Collect information about characteristics of the coils connected to the
drivers and ask for assistance to a Zapi technician in order to verify that
the maximum current that can be supplied by the hardware is not
exceeded.
In case no failures/problems have been found, the problem is in the
controller, which has to be replaced.
COIL SHOR. MC (MDI/LED code = 76)
Cause
This alarm occurs when an overload of the MC driver (output NMC A12)
occurs.
Troubleshooting
- Check the connections between the controller outputs and the loads.
- Collect information about characteristics of the coil connected to the
driver and ask for assistance to a Zapi technician in order to verify that
the maximum current that can be supplied by the hardware is not
exceeded.
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