ABB ACH580 Series - Page 197

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