Page – 130/155 AF6ZP0CA – COMBIAC0 & ACE0 2uC – User Manual
Troubleshooting
Set the two parameters with the same value, according to the adopted
encoder.
WRONG KEY VOLT. (MDI/LED code = 41)
Cause
The measured key voltage is not the right one for the inverter.
Troubleshooting
- Check if the SET KEY VOLTAGE parameter in the ADJUSTMENTS list
is set in accordance with the key voltage.
- Check if the key voltage is ok using a voltmeter, if not check the wiring.
- In case the problem is not solved, replace the logic board.
WRONG RAM MEM. (MDI/LED code = 71)
Cause
The algorithm implemented to check the main RAM registers finds wrong
contents: the register is “dirty”. This alarm inhibits the machine operations.
Troubleshooting
Try to switch the key off and then on again, if the alarm is still present replace
the logic board.
WRONG SET BAT. (MDI/LED code = 41)
Cause
At start-up, the controller checks the battery voltage (measured at the KEY
input A10) and it verifies that it is within a range of ±20% around the nominal
value.
Troubleshooting
- Check that the SET BATTERY parameter inside the ADJUSTMENTS list
matches with the battery nominal voltage.
- If the battery nominal voltage is not available for the SET BATTERY
parameter inside the ADJUSTMENTS list, record the value stored as
HARDWARE BATTERY RANGE parameter in the SPECIAL ADJUST.
list and contact a Zapi technician.
- Through the TESTER function, check that the KEY VOLTAGE reading
shows the same value as the key voltage measured with a voltmeter on
pin A10. If it does not match, then modify the ADJUST BATTERY
parameter according to the value read by the voltmeter.
- Replace the battery.
WRONG ZERO(MDI/LED code = 58)
Cause:
At start-up, the amplifiers used to measure the motor voltage sense voltages
outside a fixed range.
Troubleshooting:
This fault is related to internal components. Replace the logic board.
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