ABB ACH550-UH HVAC Installation, Operation & Maintenance Manual page 68

68
Fault
Code
3010 INP PHASE A
LOSS
3011 INP PHASE B
LOSS
3012 INP PHASE C
LOSS
3013 DRIVE 1ST START
3014 COIL POW
SUPPLY
3016 EARTH FAULT
3017 MTR UNDERLOAD
ACH550 E-Clipse Bypass
Fault Name In
Panel
Fault will be generated
only when trying to
close the bypass
contactor and the
RBCU does not sense
voltage on Phase A
Fault will be generated
only when trying to
close the bypass
contactor and the
RBCU does not sense
voltage on Phase B
Fault will be generated
only when trying to
close the bypass
contactor and the
RBCU does not senses
voltage on Phase C
Fault generated if
attempting to close the
bypass contactor with
out running the bypass
in drive mode first.
Coil power supply has
failed to reach rated
voltage
Declared if attempting
to close the bypass
contactor when the
drive has earth fault
declared
If motor power(%) level
falls below minimum
power level establish in
parameter 3003 for the
time (s) set in
parameter 3002 fault
will be generated.
Parameter 3003 is a
percentage of motor
power as defined in the
drive via parameter
9909. Fault only
applies to bypass mode
ACH550 Installation, Operation and Maintenance Manual
Fault Possible Cause
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
NA
Internal failure on
RBCU unit
Shorted contactor coil
Earth fault in motor
Broken belt
Corrective Action
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
Run bypass unit in
drive mode before
attempting bypass
mode
Cycle power on bypass
unit. If contactor coil is
shorted, fault 3023 or
3024 will be generated.
If 3023 or 3024 is
generated, replace
respective contactor
If 3023 or 3024 is not
generated on power
up, replace RBCU unit.
Refer to the fault code
16 on page 25.
Check load
Reset bypass keypad
Check fault code 17 on
page 25, for further
action