Hardware Faults - CAB XC Series Service Manual

6 Troubleshooting and Error Treatment
6.2

Hardware Faults

Error message
ADC malfunction
FPGA malfunction
Invalid setup
Voltage error
V
BAT
V
MOT
24 V
24 V ext.
Table 3 Hardware faults
Cause
Fault on the CPU
Fault on the CPU
Fault on the CPU
Voltage of the battery on the
CPU is too low
Motor voltage is too low
24 V too low
24 V at peripheral connection
too low
Fault recovery
Replace the CPU
Replace the CPU
Replace the CPU
Replace the CPU
Check motor voltage at the
measurement point V
mot
 Fig. 34 on page 36:
• Voltage too low:
Replace the power supply unit
• Voltage is correct:
Replace the CPU
Check voltage at measurement point
+24V
 Fig. 34 on page 36:
• Voltage too low:
Replace the power supply unit
• Voltage is correct:
Replace the CPU
Disconnect peripheral device
• Fault still exists:
Replace the CPU
• Fault remedied:
Repair or replace peripheral
device
33