AFDZP0BA – VCM Zapi 2uC - User Manual
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After the overload condition has been removed, the alarm exits automatically
by releasing and then enabling a travel demand.
Troubleshooting:
A) The typical root cause for this error code to be displayed is in the harness
or in the load coil. So the very first check to carry out concerns
connections between controller outputs and loads.
B) In case no failures/problems have been found externally, the problem is
in the controller, which has to be replaced.
11) WATCHDOG MASTER
Cause:
An Hardware watchdog is present inside to synchronize the microcontrollers.
All functions are blocked.
Troubleshooting:
It is an internal error, the module must be replaced.
12) EEPROM KO
Cause:
Fault in the area of memory where the parameters are stored or problems
during the read/write operations of this memory. This alarm does not inhibit
machine operation but default parameters are used.
Troubleshooting: if the fault continues when the key switch is re-cycled,
replace the board. If the fault disappears, the previously stored parameters
will have been replaced by the default parameters.
13) PARAM RESTORE
Cause:
This warning appears when the controller restored the default values.
Troubleshooting:
If a CLEAR EEPROM was mode before the last keyon-recycle, this warning
just means that the EEPROM was correctly cleared. A travel demand or a
pump request cancel the alarm. If this alarm appears at keyon without any
CLEAR EEPROM request by the operator, there could be a problem inside
the controller.
14) WRONG RAM MEM
Cause:
The algorithm implemented to check the main RAM registers finds a wrong
contents: the register is “dirty”. This alarm inhibit the machine operations.
Troubleshooting:
Try to switch the key off and then on, if the alarm is still present replace the
logic board.
15) PEV DRV OPEN
Cause:
VCM is not able to drive the high side driver of output PEVP1.
Troubleshooting:
This type of fault is not related to external components; replace the logic
board.
16) PEV DRV SHORT
Cause:
The high side driver of output PEVP1 is shorted.
Troubleshooting:
A) Check if there is a short or a low impedance pull-up between pin A13 and
