- there is a fault in the thermal sensor wiring - there is a failure in the thermal sensor - there is a failure in the logic If any of the above cases indicates faults, the Combiac1 controller has to be replaced. 65
MOTOR TEMPERAT.
(Warning)
Stored
This warning occurs when the analog temperature sensor has overtaken the threshold 150°C. Check following: - Check the thermal sensor inside the motor and the wiring outside. the resistance of sensor is 580 ohm at 20°C. - if the warning is present when the motor is cold and the thermal Sensor is OK; improve the cooling of the motor, if that does not help, the fault is in the Combiac1 controller. 66
BATTERY LOW
(Warning)
Stored
Cause: It occurs when the battery charge is calculated being less or equal to10% of full charge and the BATTERY CHECK setting is other than 0 (refer to SET OPTION menu). Charge the battery. If it does not help, measure with a voltmeter the battery voltage and compare it with the value in the BATTERY VOLTAGE parameter. If they are different adjust the value of the ADJUST BATTERY function. 74
DRIVER SHORTED
(Alarm)
Stored
Cause: The driver of the main contactor coil is shorted. a) Check if there is a short circuit between connector XA1 pin 17 and contactor K2 pin A2. b) Check that contactor K2 get +24V supply from start button. b) if there is no short circuit according previous point, the driver circuit is damaged in the Combiac1 controller.
6
