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SECTION 4 FAULT/ WARNING FUNCTIONS
4.1 GENERAL.
The GPD 333’s Fault circuit monitors oper-
ating parameters and initiates drive shutdown (Fault contacts
change state) when allowable limits are exceeded, or provides a
warning indication when conditions exist which may lead to a
Fault shutdown. The status LEDs on the front of the GPD 333,
or the 5-digit display on the Digital Operator (when present),
provides a coded display related to the Fault or Warning
Function which has occurred.
4.2 TROUBLESHOOTING.
If a fault shutdown of the
GPD 333 has occurred, observe the LED indication or Digital
Operator display; find the same indication or display in the
Fault Functions or Warning Functions table, and take the
appropriate corrective action based on the description given.
WARNING
Oscilloscope chassis may be at voltages potentially hazardous
to life if not properly grounded. If oscilloscope is used to mea-
sure high voltage waveforms, use only a dual channel oscillo-
scope in the differential mode with X100 probes. Always con-
nect oscilloscope chassis to earth ground.
WARNING
Voltages dangerous to life exist when equipment is open and
energized. Do not work alone.
CAUTION
To prevent equipment damage always remove incoming three-
phase power before test equipment is connected or removed.
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