Zapi ACE0 2mC - Page 121

AF6ZP0CA – COMBIAC0 & ACE0 2uC – User Manual Page – 121/155
PEV NOT OK (MDI/LED code = 25)
Cause:
Terminal PCOM is not connected to the battery or the voltage is different
from that defined by parameter SET POSITIVE PEB (see the
ADJUSTMENTS list, paragraph 8.2.3).
This alarm can occur if output NAUX1 is present (and the related setting is
active) or the AUX OUT function is active.
Troubleshooting:
- Check PCOM terminal: it must be connected to the battery voltage (after
the main contactor).
- Set the nominal PCOM voltage in parameter SET POSITIVE PEB in
ADJUSTMENTS list (see paragraph 8.2.3).
POS. EB. SHORTED (MDI/LED code = 84)
Cause:
The voltage on pin A2 is high even if the smart driver is turned OFF.
Troubleshooting:
- Verify that the parameter POSITIVE E.B. is set in accordance with the
actual coil positive supply (see paragraph 8.2.5).
- Check if there is a short or a low impedance path between pin A2 and of
the +B. In case no failures/problems have been found, the problem is in
the controller, which has to be replaced.
POSITIVE LC OPEN (MDI/LED code = 35)
Cause
The positive voltage of LC is different from expected.
Troubleshooting
- Verify LC coil is properly connected.
- Verify CONF. POSITIVE LC parameter is set in accordance with the
actual coil positive supply (see paragraph 8.2.5). Software, depending on
the parameter value, makes a proper diagnosis; a mismatch between the
hardware and the parameter configuration could generate a false fault.
- In case no failures/problems have been found, the problem is in the
controller, which has to be replaced.
POWER MISMATCH (MDI/LED code = 39)
Cause
The error between the power setpoint and the estimated power is out of
range.
Troubleshooting
Ask for assistance to a Zapi technician about the correct adjustment of the
motor parameters.
POWERMOS SHORTED (MDI/LED code = 89)
Cause
The DC-link voltage drops to zero when a high-side or low-side MOSFET is
turned on.
Troubleshooting
- Check that motor phases are correctly connected.
- Check that there is no dispersion to ground for every motor phases.