Zapi COMBI AC1 User Manual

window around the nominal value.
Troubleshooting:
A) Check that the controller SET BATTERY parameter value matches the
battery nominal voltage.
B) Check that the TESTER MENU / BATTERY VOLTAGE parameter shows
same value as the battery voltage measured with a voltmeter. If it is does
not match, then do a “ADJUST BATTERY” function.
C) Replace the battery.
19) “ANALOG INPUT”
Cause:
This alarm occurs when the A/D conversion of the analog inputs gives frozen
value, on all of the converted signals, for more than 400msec. The goal of
this diagnosis is to detect a failure of the A/D converter or a problem in the
code flow that omits the refreshing of the analog signal conversion.
Troubleshooting:
If the problem occurs permanently it is necessary to substitute the controller.
20) “ENCODER ERROR”
Cause:
This fault is signalled in following conditions: the frequency supplied to the
motor is higher than 40 Hz and the signal feedback from the encoder has a
jump higher than 40 Hz in few tens mSec. This condition is related to a
malfunctioning of the encoder.
Troubleshooting:
A) Check both the electric and the mechanical encoder functionality, the
wires crimping.
B) Check the encoder mechanical installation, if the encoder slips inside its
compartment raising this alarm condition.
C) Also the electromagnetic noise on the sensor bearing can be a cause for
the alarm. In these cases try to replace the encoder.
D) If the problem is still present after replacing the encoder, the failure is in
the controller.
21) “TILLER ERROR”
Cause:
Mismatch between the H&S input and the tiller input.
Troubleshooting:
Check the harness related to CNA#6 and CNA#7 in AmpSaab connector
(CNA#29 and CNA1 in AmpSeal connector) with a voltmeter. If the state of
these inputs is right, then it could be a problem inside the controller, which
has to be changed.
22) “WATCHDOG”
Cause:
This is a safety related test. It is a self diagnosis test within the logic between
Master and Slave microcontrollers.
Troubleshooting:
This alarm could be caused by a canbus malfunctioning, which blinds
master-slave communication. Otherwise it is an internal fault of the controller
which must be replaced.
23) “HARDWARE FAULT”
Cause:
The master microcontroller has detected that the slave microcontroller is not
able to stop the traction enable or LC-EB enable.
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Zapi COMBI AC1 Specifications

General

Brand	Zapi
Model	COMBI AC1
Category	Inverter
Language	English