ABB IRC5 Operating Manual page 206

5 Troubleshooting by event log
5.5 3 xxxx
Continued
39472, Incoming Mains Phase Missing
Description
The rectifier connected to communication link arg in drive
module arg detects a power loss in one phase.
Consequences
No operation will be possible until after correcting the fault. The
system goes to status SYS HALT.
Probable causes
This may be caused by an actual mains power loss, some
malfunction in the Motors ON contactors or its cabling or in
another part of the three phase chain inside the cabinet. On
rare occasions, this fault may occur in combination with other
faults, in which case this may be found in the error log.
Recommended actions
Make sure the mains switch is closed and that there is mains
voltage present. No volts means the problem is in mains cable
connector or the factory power supply. If the voltage is OK,
disconnect the input mains cable and measure the resistance
of all three phases across all the components in the 3 phase
supply chain. Start from the contactor closest to the rectifier
and work backwards towards the mains switch. The contactors
can be closed manually to perform the test. Refer to the
electrical drawings for the cabinet. Check the indication LEDs
on the rectifier unit. The significance of these is described in
the Trouble Shooting Manual. If the voltage is OK, check any
other error log messages coinciding in time with this one for
clues.
39473, All Incoming Mains Phases Missing
Description
The rectifier connected to communication link arg in drive
module arg detects a power loss in one or more phases.
Consequences
No operation will be possible until after correcting the fault. The
system goes to status SYS HALT.
Probable causes
This may be caused by an actual mains power loss, some
malfunction in the Motors ON contactors or its cabling or in
another part of the three phase chain inside the cabinet. On
rare occasions, this fault may occur in combination with other
faults, in which case this may be found in the error log.
Recommended actions
Make sure the mains switch is closed and that there is mains
voltage present. No volts means the problem is in mains cable
connector or the factory power supply. If the voltage is OK,
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disconnect the input mains cable and measure the resistance
of all three phases across all the components in the 3 phase
supply chain. Start from the contactor closest to the rectifier
and work backwards towards the mains switch. The contactors
can be closed manually to perform the test. Refer to the
electrical drawings for the cabinet. Check the indication LEDs
on the rectifier unit. The significance of these is described in
the Trouble Shooting Manual. If the voltage is OK, check any
other error log messages coinciding in time with this one for
clues.
39474, Rectifier Current Warning
Description
The rectifier connected to drive communication link arg in drive
module arg is approaching overload.
Consequences
No operation will be possible until after correcting the fault. The
system goes to status SYS HALT.
Probable causes
The total motor current may be greater than that which the
rectifier can supply.
Recommended actions
If possible, rewrite the user program to reduce the amount of
hard acceleration.
39475, Rectifier Current Error
Description
The rectifier connected to drive communication link arg in drive
module arg has reached overload.
Consequences
No operation will be possible until after correcting the fault. The
system goes to status SYS HALT.
Probable causes
The total motor current may be greater than that which the
rectifier can supply.
Recommended actions
If possible, rewrite the user program to reduce the amount of
hard acceleration.
39476, Rectifier Temperature Warning
Description
The temperature in the rectifier unit connected to drive
communication link arg in drive module arg is approaching a
too high a level.
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Operating manual - Troubleshooting IRC5
3HAC020738-001 Revision: AA