
Malfunction, cause and remedy
19
Faults of the electrics/electronics
19.5
Comprima F 155 XC
Original Operating Instructions 150001050_01_en
235
521103-
High
Voltage group (UB4) of the KRONE Machine Controller (KMC)
Possible cause
Remedy
FMI 3: An overvoltage or a short circuit to the supply voltage has occurred.
The wiring is faulty.
Check wiring for damage,
One or several sensors/actu-
ators connected to the voltage
group are defective.
An overview of the position of the sensors, actuators and
control units is provided in the circuit diagram.
Check the sensor and the cabling for damage,
The control unit KMC is de-
fective.
Replace the control unit KMC.
Note the error number with the FMI and contact the KRONE
service partner.
521103-
Low
Voltage group (UB4) of the KRONE Machine Controller (KMC)
Possible cause
Remedy
FMI 4: An undervoltage or a short circuit to ground has occurred.
The wiring is faulty.
Check wiring for damage,
One or several sensors/actu-
ators connected to the voltage
group are defective.
An overview of the position of the sensors, actuators and
control units is provided in the circuit diagram.
Check the sensor and the cabling for damage,
The control unit KMC is de-
fective.
Replace the control unit KMC.
Note the error number with the FMI and contact the KRONE
service partner.
521103-
High
Voltage group (UB4) of the KRONE Machine Controller (KMC)
Possible cause
Remedy
FMI 5: A cable break has occurred or the current intensity is too weak.
The wiring is faulty.
Check wiring for damage,
One or several sensors/actu-
ators connected to the voltage
group are defective.
An overview of the position of the sensors, actuators and
control units is provided in the circuit diagram.
Check the sensor and the cabling for damage,
The control unit KMC is de-
fective.
Replace the control unit KMC.
Note the error number with the FMI and contact the KRONE
service partner.