Chapter 4 – Trouble-Shooting Guide
Symptom
Possible Cause
Corrective Action
1.
The switch does
not close
when the ON button is
pressed
and there is no
sound of the
closing
spring releasing.
2.
The switch does not
close when the ON
button is pressed,
but the closing
spring is heard to
release.
3.
The switch can be
opened
locally, but
not remotely.
The closing spring is not fully
charged.
The Bell Alarm with Lockout is
deployed.
The Undervoltage Release is
not energized.
The Control Unit is not
properly installed.
The Control Unit detected a
fault and immediately tripped
the switch.
The Shunt Trip is energized.
The switch is locked in the OFF
position by a padlock or key
interlock.
The switch is interlocked with
another switch with a walking
beam.
If a draw-out switch, it is not
fully inserted in the
substructure (between the
TEST and CONNECTED
positions.
There is a problem with the
Shunt Trip.
There is a problem with the
Undervoltage Release.
18
The following guide is provided for trouble-shooting and isolating common problems. It does not cover every possible
situation. Contact the Customer Support Center at 800-843-3742 if any problem is not resolved by these procedures.
On a manually operated switch, operate the handle until the
indicator shows CHARGED
.
On an electrically operated switch, check that the voltage
to the motor operator is at least 85% of nominal. See
GEH6281 ,
Motor Operator Mechanism.
Correct the condition that initiated the bell alarm, then
depress the yellow plunger on the Bell Alarm with Lockout
module to reset the lockout. See GEH6278, Bell Alarm with
Lockout .
See
GEH6285,
Undervoltage
Release,
for
details
on
energizing
the UVR
.
See DEH40381, EntelliGuard® Control Units , for the Control
Unit installation procedure.
Clear the fault, then recharge the closing spring and close
the switch.
For
fault
diagnostics
see
DEH40381, EntelliGuard®
Control Units.
See GEH6284, Shunt Trip , for instructions on de-energizing
the unit.
After ensuring that the safety reason for locking the switch
no longer applies, remove the padlock or key
interlock
.
See
GEH6279, Key Interlock Mounting Provision.
See
GEH6286,
Walking-Beam
Interlock
,
for
the
removal
procedure.
Ensure that the switch is fully racked in to the substructure.
See GEH6272,
Draw-Out Substructure,800–4000 Amperes
.
See the trouble-shooting instructions in GEH6284,
Shunt
Trip.
See the trouble-shooting instructions in GEH6285,
Undervoltage Release .
