A) the charging resistance is opened; if it is opened.
B) The charging circuit has a failure.
C) There is a problem on the power modules.
12) VMN LOW, VMN HIGH
The test is carried out during initial diagnosis and in standby.
Possible causes:
A) problem with the motor connections or the motor power circuit; check if
the 3 phases are correctly connected; check if there's a dispersion of the
motor towards ground;
B) inverter failure, replace it.
13) VACC NOT OK
The test is made in standby. This alarm indicates that the accelerator voltage
is 1V greater than the minimum value programmed by the PROGRAM VACC
function.
Possible causes:
A) the potentiometer is not correctly calibrated;
B) the potentiometer is defective.
14) PEDAL WIRE KO
This alarm is signalled if a fault is detected in the accelerator unit wiring
(NPOT or PPOT cable is interrupted).
15) PEDAL FAILURE
This alarm can be activated on request and it is signalled if the accelerator
signal is out of the range. Possible cause: an hardware problem on the logic
board or a potentiometer problem (disconnected wire, damaged cursor).
16) STBY I HIGH
Test carried out in standby. Check if the current is 0. If not verified, an alarm
is signalled which inhibits machine operations. Possible causes:
A) current sensor failure;
B) logic failure: first replace the logic; if the defect persists, replace the
power unit.
17) DATA ACQUISITION
This alarm is signalled in the current gain acquisition phase. Wait the end of
the acquisition activity.
18) MAIN CONTACTOR ALARMS
- COIL SHORTED
When the key is switched ON the µP checks the MC driver FF SR. If it
does not react in a correct way to the µP stimulus, the alarm is signalled.
Replace the logic board. The FF SR makes an hardware control of the
current in the MC coil. If this is too high, it opens the MC and the alarm is
signalled.
Check if there are external shortcircuit and if the ohmic value of the MC is
correct; otherwise replace the logic.
- DRIVER SHORTED
When the key is switched ON, the µP checks that the MC coil driver is
not shorted; if it is, this alarm is signalled; replace the logic board.
- CONTACTOR DRIVER
When the initial diagnosis is finished, the traction logic closes the MC and
checks the voltage on the Drain of the driver. If this is not low, an alarm is
signalled.
Replace the logic.
- CONTACTOR OPEN
The main contactor coil has been driven by the logic board, but the
contactor does not close. Two possible reasons:
A) the wires to the coil are interrupted or not well connected.
B) the contact of the contactor is not properly working.
ADEZP0AE - AC-2 INVERTER - User Manual Page - 57/64
To Next Page
Loading...
Need help?
General
