Eaton VCP-TL Series Instructions For The Use, Operation And Maintenance page 59

Table 6.4 Troubleshooting Guide (continued on next page)
Symptom
Circuit breaker undesirably opens
Circuit breaker undesirably closes
When attempting to close, the circuit
breaker opens immediately
Circuit breaker cannot be opened
remotely, but can be opened locally
Circuit breaker cannot be opened
locally, but can be opened remotely
Circuit breaker makes no attempt to
open with either local (manual) or
remote controls
Circuit breaker cannot be closed
remotely, but can be closed locally
IB131017EN
Probable Cause
Opening coil is energized
Interlock switch is closed (drawout
only)
Closing coil is energized
Interlock switch is closed (drawout
only)
The vacuum interrupter contact wipe
is incorrectly adjusted
Interlock switch is closed (drawout
only)
Secondary contact wiring problem
A voltage is being supplied to the
open circuit
Controller wiring problem
Controller or pushbutton switch
wiring problem
Opening spring broken or one or
more vacuum interrupter contacts
welded
Controller or pushbutton switch
wiring problem
Damaged auxiliary switch or open
coil
Secondary contact wiring problem
Controller wiring problem
A voltage is being supplied to close
circuit
For more information visit: www.Eaton.com
Instruction Book
Effective: May 2016
Corrective Actions
Check control signal to circuit
breaker for proper connection
Check that interlocks are in correct
positions and free from obstruc-
tions
Check control signal to circuit
breaker for proper connection
Check that interlocks are in correct
positions and free from obstruc-
tions
Contact EATON Service Center
Check that interlocks are in correct
positions and free from obstruc-
tions
Check for correct installation of
pins and sockets and that the plug
us properly connected
A dry contact must be used to
open the circuit breaker remotely
Inspect for loose wires into con-
troller
Inspect for loose wires into con-
troller or open pushbutton switch
Contact EATON Service Center
Inspect for loose wires into con-
troller or open pushbutton switch
Contact EATON Service Center
Check for correct installation of
pins and sockets and that plug is
properly connected
Inspect for loose wires into con-
troller
A dry contact must be used to
close the circuit breaker remotely
Page 53