CAB Hermes C 6L, Service Manual

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32 32 6 Troubleshooting and Error Treatment
6.2 Hardware Faults
Error message Cause Fault recovery
ADC malfunction
Fault on the PCB CPU Replace the PCB CPU
FPGA malfunction
Fault on the PCB CPU Replace the PCB CPU
Invalid setup Fault on the PCB CPU Replace the PCB CPU
Voltage error
V
BAT
Voltage of the battery on the
PCB CPU is too low Replace the PCB CPU
V
MOT
Motor voltage is too low Check motor voltage (+38 V) at the measurement
point V
mot

Figure 36 on page 35:
• Voltage too low:
Replace the power supply unit
• Voltage is correct:
Replace the PCB CPU
24 V
24 V too low Check voltage at measurement point +24V

Figure 36 on page 35:
• Voltage too low:
Replace the power supply unit
• Voltage is correct:
Replace the PCB CPU
24 V ext. 24 V at peripheral connection
too low Disconnect peripheral device
• Fault still exists:
Replace the PCB CPU
• Fault remedied:
Repair or replace peripheral device
Table 4 Hardware faults