ABB IRC5 Operating Manual page 208

5 Troubleshooting by event log
5.5 3 xxxx
Continued
39483, DC Link Short Circuit
Description
A short circuit has been detected on the DC link of drive module
arg.
Consequences
The robot cannot be operated.
Probable causes
The DC bus bar may be badly connected or its contact surfaces
may be contaminated causing a short circuit.
Recommended actions
Check that all DC link bus bars have been correctly connected.
Check that all contacts are free from contamination.
39484, Run chain open in motor on state
Description
Run chain arg is open when system is in motor on state. The
problem occurred in drive system arg.
Consequences
System goes to SYS_HALT.
Probable causes
Cables and connections on the safety system are unplugged
or damaged. The contactor for this run chain in the drive module
may be stuck due to mechanical problem in contactor itself.
The help contactor on the contactor can suffer from bad galvanic
behavior or faulty cable to the safety system.
Recommended actions
Check if a motor contactor is stuck. Replace faulty motor
contactor.
39485, Run chain close in motor off state
Description
Run chain arg is open when system is in motor on state. The
problem occurred in drive system arg.
Consequences
System goes to SYS_HALT.
Probable causes
The contactor for this run chain placed in the drive module has
been pulled down manually. The contactor has been welded in
close position.
Recommended actions
If the contactor is not released and stays in pulled position,
shut down the system and replace the contactor. If the contactor
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208
has been pulled down manually, take this message as a warning
only.
39486, DC Link Not Connected
Description
The DC Link connection to the drive serving joint arg in drive
module arg, drive unit number arg is missing or is not properly
connected.
Consequences
The system goes to SYS_HALT.
Probable causes
The DC bus bar is either missing or is not properly connected.
If the bus bar is correctly connected. The drive unit reporting
the error may have a fault.
Recommended actions
Check the DC bus bar is properly connected to all the drive
units
39500, Logic Voltage to Drive Unit Warning
Description
The 24V supply from the drive module power supply to the main
drive unit in drive module arg is out of range.
Consequences
Probable causes
The 24V supply from the drive module power supply may be
out of range.
Recommended actions
Make sure the power cable from the drive module power supply
to the main drive unit is connected correctly. Check if the power
supply unit LED is red. The full meaning of all LED indications
are described in the Trouble Shooting Manual, IRC5.
39501, Logic Voltage to Drive Unit Error
Description
The 24V supply to the main drive unit in drive module arg is out
of range.
Consequences
No operation will be possible until after correcting the fault. The
system goes to status SYS HALT.
Probable causes
The 24V supply from the power supply unit may be out of range.
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Operating manual - Troubleshooting IRC5
3HAC020738-001 Revision: AA