Zapi DUALACE2 NEW GENERATION User Manual

AFNZPxxx– DUALACE2 NEW GENERATION – User Manual Page 135/169
INIT VMN LOW XX (MDI/LED code = 30)
Cause
Before closing the LC, the software checks the power bridge voltage without
driving it. The software expects the voltage to be in a “steady state” value. If it is
too low, this alarm occurs. The hexadecimal value “XX” identifies the faulty
phase:
01: phase U
02: phase V
03: phase W
Troubleshooting
Check the motor power cables.
Check the impedance between U, V and W terminals and -B terminal of the
controller.
Check the motor leakage to truck frame.
If the motor connections are OK and there are no external low impedance paths,
the problem is inside the controller. Replace it.
IQ MISMATCHED (MDI/LED code = 24)
Cause
The error between the estimated Iq (q-axis current) and the related set point is
out of range.
Troubleshooting
Ask for assistance to a Zapi technician in order to do the correct adjustment of
the motor parameters.
LC COIL OPEN (MDI/LED code = 22)
Cause
No load is connected between the NLC output (pin A26) and the positive voltage
(for example +KEY).
Troubleshooting
Check the wiring, in order to verify if LC coil is connected to the right connector
pin and if it is not interrupted.
If the alarm is still present, than the problem is inside the logic board; replace it.
LIFT+LOWER (MDI/LED code = 49)
Cause:
Both the pump requests (LIFT and LOWER) are active at the same time.
Troubleshooting:
Check that LIFT and LOWER requests are not active at the same time.
Check the LIFT and LOWER states through the TESTER function.
Check the wirings and the microswitches.
If the problem is not solved, replace the logic board.
LOGIC FAILURE #1 (MDI/LED code = 19)
Cause
The controller detects an undervoltage condition at the KEY input (pin A3).
Undervoltage threshold are indicated at paragraph 2.4
Troubleshooting (fault at startup or in standby)

Zapi DUALACE2 NEW GENERATION Specifications

General

Brand	Zapi
Model	DUALACE2 NEW GENERATION
Category	Controller
Language	English