Zapi AC-0 SSL User Manual

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- Remedy: It is suggested to check the contactor contact, if it is
mechanically stuck or pasted.
5) DRIVER SHORTED
MDI-PRC Code = 74
- Cause: This alarm occurs when the voltage on the Main Contactor is
higher than expected: this means that the Main Contactor Coil
has a high voltage although it is not supplied.
- Remedy: Probably it is necessary to replace the controller because the
driver of the Main Contactor is short circuited.
6) AUX OUTPUT KO
MDI-PRC Code = 16
- Cause: This alarm occurs when the feedforward PWM generated by the
controller to supply the Electromechanical Brake and the actual
feedback voltage on the Electromechanical Brake are not
matched in between. The diagnosis is made only when the
Tiller Switch is active.
Then:
a) When the feedforward PWM is less than 10% of the battery
voltage, the Actual voltage on the Electromechanical Brake
is expected low. If it is higher than 14 V it means the
Electromechanical Brake never Brakes the truck (probably
the Driver of the Electromechanical Brake is short circuited)
and this alarm occurs.
b) When the feedforward PWM is higher than 70% of the
battery voltage, the Actual voltage on the
Electromechanical Brake is expected high. If it is lower than
14 V it means the Electromechanical Brake always gets the
truck Braked (probably the Driver of the Electromechanical
Brake is opened) and this alarm occurs.
- Remedy: Probably it is necessary to replace the controller because the
driver of the Electromechanical Brake has a failure.
7) MDI VALVE2 SHORT
MDI-PRC Code = 70
- Cause: This alarm occurs on the MDI-PRC and the information is
transferred via CAN Bus to the AC-0.
- Remedy: See 11.2 and the manual of the MDI-PRC.
8) MDI NEVP1 NOT OK
MDI-PRC Code = 90
- Cause: This alarm occurs on the MDI-PRC and the information is
transferred via CAN Bus to the AC-0.
- Remedy: See 11.2 and the manual of the MDI-PRC.
9) MDI PEV NOT OK
MDI-PRC Code = 89
- Cause: This alarm occurs on the MDI-PRC and the information is
transferred via CAN Bus to the AC-0.
- Remedy: See 11.2 and the manual of the MDI-PRC.
10) MDI DRV 2 OPEN
MDI-PRC Code = 75
- Cause: This alarm occurs on the MDI-PRC and the information is

Zapi AC-0 SSL Specifications

General

Brand	Zapi
Model	AC-0 SSL
Category	Inverter
Language	English