Troubleshooting Procedures; Checking The Power Switch B - Nordson 3100V Series Customer Product Manual

Control
B 2-19
4.
Troubleshooting
Procedures
Use
these procedures as directed in Troubleshooting
Tables to
further
troubleshoot control system problems.
WARNING:
Risk of
equipment damage, personal injury or
death. This procedure requires you
to perform electrical
troubleshooting with the power
on.
Use extreme
caution and
refer
to Electrical
Safety
During Troubleshooting and Opening
and Closing the Electrical Enclosure for instructions on safely
working inside the electrical enclosure.
1.
Turn on power to the unit
at the branch circuit disconnect switch
2.
With the unit's POWER switch
in
the off position, measure the voltage
across
J4 positions
1
and
4 on the power board.
Voltage does not measure 230 VAC: replace the POWER switch
and harness.
Voltage measures 230 VAC: normal indication. Continue to the
next step.
3.
With
the unit's POWER switch
in
the on position, measure the voltage
across
J4 positions 2 and 5 on the power board.
Voltage
does not measure 230 VAC: replace the POWER switch
and harness.
Voltage measures 230 VAC: normal indication. Return to the
UnrT
Not
Powering
On
troubleshooting table.
Checking
the POWER
Switch
Follow
this procedure to check the POWER switch
a
a
@
2000
Nordson
Corporation
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EN-04-[3V-X-4XXVj-s