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5
Troubleshooting and Error Treatment
28
5.2
Hardware Faults
Error message
ADC malfunction
FPGA malfunction
Invalid setup
Voltage error
V
BAT
V
MOT
24 V
24 V ext.
5 V ext.
Table 3
Hardware faults
Cause
Fault on the PCB CPU
Fault on the PCB CPU
Fault on the PCB CPU
Voltage of the battery on the
PCB CPU is too low
Motor voltage is too low
24 V too low
24 V at peripheral connection
too low
5 V at Centronics connection
too low
Interface converter with
excessive power consumption
may be connected
Fault recovery
Replace the PCB CPU
Replace the PCB CPU
Replace the PCB CPU
Replace the PCB CPU
Check motor voltage (+38 V) at the
measurement point V
mot
Fig. 30 on page 32:
•
Voltage too low:
Replace the power supply unit
•
Voltage is correct:
Replace the PCB CPU
Check voltage at measurement point
+24V
Fig. 30 on page 32:
•
Voltage too low:
Replace the power supply unit
•
Voltage is correct:
Replace the PCB CPU
Disconnect peripheral device
•
Fault still exists:
Replace the PCB CPU
•
Fault remedied:
Repair or replace peripheral
device
Disconnect interface converter
•
Fault still exists:
Replace the PCB CPU
•
Fault remedied:
Replace interface converter
28
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