Zapi DUALACE2 NEW GENERATION User Manual

Page 130/169 AFNZPxxx – DUALACE2 NEW GENERATION – User Manual
This alarm occurs when a mismatch is detected between the setpoint for the
overcurrent detection circuit (dependent on parameter DUTY PWM CTRAP, see
paragraph 8.2.6) and the feedback of the actual threshold value.
Troubleshooting
The failure lies in the controller hardware. Replace the logic board.
CURRENT GAIN (MDI/LED code = 92)
Cause:
The current gain parameters are at the default values, which means that the
maximum current adjustment procedure has not been carried out yet.
Troubleshooting:
Ask for assistance to a Zapi technician in order to do the adjustment procedure of
the current gain parameters.
DATA ACQUISITION (MDI/LED code = 0)
Cause:
Controller in calibration state.
Troubleshooting:
The alarm ends when the acquisition is done.
DRIVER SHORTED (MDI/LED code = 74)
Cause
The driver of the LC coil is shorted.
Troubleshooting
Check if there is a short or a low impedance pull-down between NLC (pin A12)
and -B.
The driver circuit is damaged; replace the logic board.
DRV. SHOR. EV XX (MDI/LED code = 21)
Cause:
One or more on/off valve drivers are shorted. For the meaning of code “XX”, refer
to paragraph Errore. L'origine riferimento non è stata trovata..
Alarm not present on DualACE2.
Troubleshooting:
Check if there is a short circuit or a low impedance path between the negative
terminals of the involved coils and -B.
If the problem is not solved, replace the logic board.
EB. COIL OPEN (MDI/LED code = 43)
Cause:
No load is connected between the NEB output (pin A28 (A18)) and the EB
positive terminal PEB (pin A27).
Troubleshooting:
Check the EB coil.
Check the wiring.
If the problem is not solved, replace the logic board.
EB. DRIV.OPEN (MDI/LED code = 42)
Cause:

Zapi DUALACE2 NEW GENERATION Specifications

General

Brand	Zapi
Model	DUALACE2 NEW GENERATION
Category	Controller
Language	English