ACH580 Installation, Operation and Maintenance Manual 123
ACH580 E-Clipse Bypass
Diagnostics
Fault listing
Fault
Code
Fault Name In
Panel
Fault Possible Cause Corrective Action
3001 COIL CURR FBK RBCU is sensing
abnormal current
feedback when neither
contactor should be
energized
Defective component on
RBCU
Change RBCU
3002 BYP CNTACT
STUCK
M2 contactor indicates it
is not prepared to move
on a power up check of
the contactor or after
contact is commanded
to open
Defective Contactor
Defective RBCU
Disconnect incoming
power from unit
Check if contactor
armature moves freely. If
armature moves freely,
then change the RBCU.
If armature does not
move freely, then
change individual
contactor (M2) or the
complete assembly
(RCSA-0x)
3003 DRV CNTACT
STUCK
M1 contactor indicates it
is not prepared to move
on a power up check of
the contactor or after
contact is commanded
to open
Defective Contactor
Defective RBCU
Disconnect incoming
power from unit
Check if contactor
armature moves freely. If
armature moves freely,
then change the RBCU.
If armature does not
move freely, then
change individual
contactor (M1) or the
complete assembly
(RCSA-0x)
3004 BYPASS COIL
OPEN
M2 contactor will not
close when commanded
to do so
Loose J8 connector on
RBCU (refer to page 99
for the J7 connector
location)
Loose wires on
contactor terminals A1
and/or A2
Bad Output on RBCU
Bad Contactor
Verify that J8 connector
is firmly seated. (refer to
page 99 for the J7
connector location)
With incoming power
disconnected, check for
tightness of A1 and A2
terminals
Swap RBCU
Change Contactor/
Assembly
3005 DRIVE COIL OPEN M1 contactor will not
close when commanded
to do so
Loose J8 connector on
RBCU (refer to page 99
for the J7 connector
location)
Loose wires on
contactor terminals A1
and/or A2
Bad Output on RBCU
Bad Contactor
Verify that J8 connector
is firmly seated. (refer to
page 99 for the J7
connector location)
With incoming power
disconnected, check for
tightness of A1 and A2
terminals
Swap RBCU
Change Contactor/
Assembly
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