ABB ACH550-UH User Manual page 572

2-226
Fault
Code
3006 UNDERVOLTAGE
3008 DRIVE AI2 LOSS
3009 MTR OVERLOAD
3010 INP PHASE A
LOSS
3011 INP PHASE B
LOSS
3012 INP PHASE C
LOSS
Diagnostics
Fault Name In
Panel
Fault will be generated
only if the drive is
controlling the motor
and the power to the
bypass is removed
before the drive shuts
down. This fault is
generated when the
drive contactor opens
while the drive is
operating.
Only displayed when
in Supervisory mode.
Indicates that AI2 on
the drive has failed.
Bypass opens on
motor overload
conditions defined in
the drive
Fault will be generated
when the bypass
contactor is requested
to be closed and the
RBCU does not sense
voltage on Phase A
Fault will be generated
when the bypass
contactor is requested
to be closed and the
RBCU does not sense
voltage on Phase B
Fault will be generated
when the bypass
contactor is requested
to be closed and the
RBCU does not sense
voltage on Phase C
ACH550 E-Clipse Bypass User's Manual
Fault Possible Cause
Loose J7 connector
on RBCU unit
Loose input wiring
Incoming power
problems
Check ACH550
manual for AI2 loss
Drive Mode:
Bad Motor
Bad CT's
Bad RBCU
Bypass mode:
Bad motor
Bad CT's
Bad RBCU
Either mode:
low input voltage
Loose J7 connector
Loose wiring on
Contactor assembly.
Blown upstream fuse
Loose J7 connector
Loose wiring on
Contactor assembly.
Blown upstream fuse
Loose J7 connector
Loose wiring on
Contactor assembly.
Blown upstream fuse
Corrective Action
Check that J7
connector is firmly
seated in RBCU
Check tightness of
incoming connections
Check Parameter
0413 to view voltage
level at time of trip
Check upstream
protection
Check ACH550
manual for AI2 loss
Check if overload
condition exists
Drive Mode:
Refer to 550 manual
for proper
troubleshooting
techniques
Bypass Mode:
Check that J2
connector is firmly
seated in RBCU
Use clamp meter to
verify mtr current vs.
display in parameter
0101
Check input voltage
Check J7 connector
Check yellow wire on
input block
Check incoming
voltage, phase to
ground
Check J7 connector
Check black wire on
input block
Check incoming
voltage, phase to
ground
Check J7 connector
Check red on input
block
Check incoming
voltage, phase to
ground