ABB ACH580 Series User Manual page 197

188
Fault
Code
3014
3016
3017
3018
3019
3020
3021
3022
Diagnostics
Fault Name
Fault
In Panel
COIL POW Coil power supply has
SUPPLY failed to reach rated
voltage
EARTH Declared if attempting to
FAULT close the bypass
contactor when the drive
has earth fault declared
MTR If motor power(%) level
UNDERLOAD 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
MAX CYCLE Supervisory Mode only.
FAULT Declared if bypass
contactor is closed by
supervisory control 16
times within a 1 hour
period.
DRIVE LINK Supervisory Mode Only.
FAULT Fault generated if
RS-485 link between
drive and bypass stops
communicating.
PHASE SEQ Sequence of 3 phase
voltage input is such that
bypass operation will
result in motor rotation
opposite of drive forward
operation.
PH A CURR Fault is generated when
FBK current in Phase A is
detected and the bypass
contactor is open
PH C CURR Fault is generated when
FBK current in Phase C is
detected and the bypass
contactor is open
ACH580 E-Clipse bypass and packaged drive user manual
Possible Cause
Internal failure on
RBCU unit
Shorted contactor
coil
Earth fault in motor
Broken belt
High and low levels
of hysteresis band
are too tight
Bad cable/
connection between
drive and bypass.
Drive parameter
95.21, bit 5 not set
for Bypass present.
Phase sequence
unknown at time of
wiring
Loose CT connection
Bad RBCU
Bad CT
Loose CT connection
Bad RBCU
Bad CT
Corrective Action
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 ACH580 manual
Check load
Reset bypass keypad
Check ACH580 manual, fault
code 17, for further action
Check parameters 3202–
3205. Increase time delays on
parameters 3204 and 3205
Proper seating of cable in
drive and RBCU
(connector J3).
Check that drive parameter
95.21, bit 5 is set.
Swap any two of the three
input wires to the bypass unit
Check J2 connector for
proper seating
Check connector on Current
Assembly
Replace RBCU
Replace RCSA unit
Check J2 connector for
proper seating
Check connector on Current
Assembly
Replace RBCU
Replace RCSA unit