Zapi COMBI AC1 Instrukcja Użytkownika Pobierz pdf (Strona 75)

Troubleshooting:

The alarm ends when the acquisition is done.

13) “PEDAL WIRE KO”

Cause:

The SW continuously checks for the connection of the two supply ends of the

potentiometer in the accelerator. The test consists of reading the voltage

drop on a sense diode, connected between NPOT (CNA#23 in AmpSaab

connector) and GND and cascaded with the potentiometer: if the

potentiometer gets disconnected on PPOT (CNA#26 in AmpSaab connector)

or NPOT, no current flows in this sense diode and the voltage on the NPOT

connection collapses down.

When the NPOT voltage is less than 0.3V this alarm occurs. This alarm

occurs also when the NPOT voltage is higher than 2Vdc (to detect also the

condition of a broken sense diode).

Troubleshooting:

Check the voltage on NPOT and the potentiometer connections.

14) “TILLER OPEN”

Cause:

Warning: when the tiller is released, after a fixed period of time of standby

(30 seconds) the main contactor open.

Troubleshooting:

At the next travel request the warning disappear.

15) “CURRENT GAIN”

Cause:

The Maximum current gain parameters are at the default values, which

means the maximum current adjustment procedure has not been carried out

yet.

Troubleshooting:

Ask the assistance of a Zapi technician to do the correct adjustment

procedure of the current gain parameters.

16) “WAITING FOR NODE”

Cause:

The controller receives from the CAN the message that another controller in

the net is in fault condition; as a consequence the traction controller itself

cannot enter an operative status, but has to WAIT for the other controller

coming out from the fault status.

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Zapi COMBI AC1 Instrukcja Użytkownika Strona 75