Zapi ACE0 2mC, User Manual

Page: 112 / 155

Page – 112/155 AF6ZP0CA – COMBIAC0 & ACE0 2uC – User Manual
CURRENT GAIN
(MDI/LED code = 92)
Cause:
The maximum 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 NMC
(
A12 ) and -B.
- The driver circuit is damaged; replace the logic board.
DRV. SHOR. EV 02
(MDI/LED code = 21)
Cause:
AUX valve driver is shorted.
Troubleshooting:
-
Check if there is a short circuit or a low impedance path between the
negative terminal of the coils and -B.
- If the problem is not solved, replace the logic board.
EB. COIL OPEN
(MDI/LED code = 43)
Cause:
This fault appears when no load is connected between the NEB output (
A4 )
and the EB positive terminal PEB ( A2 ).
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:
The EB coil driver is not able to drive the load. The device itself or its driving
circuit is damaged.
Troubleshooting:
This type of fault is not related to external components. Replace the logic
board.
EB. DRIV.SHRT.
(MDI/LED code = 40)