GE Industrial Solutions Power Plus Control Units - Manuel (Page 11)

Power+™ Control Units
Chapter 3. Control Unit Status
3–1 Target Module
Control Unit status information is provided by the
optional target module. This module indicates when a
switch opening was caused by a ground fault, as well as
whether the Control Unit is functioning properly. The
target module is shown in Figure 5.
If a Control Unit is ordered without a target module, a
blank insert is installed in the Control Unit slot. Catalog
numbers are listed in Table 6.
NOTE: The target modules that include ground-fault
trip indication do not provide the ground-fault
protection function. If ground-fault protection is
required, a ground-fault-equipped rating plug must be
installed in the Control Unit.
NOTE: Les modules à voyants lumineux (target) qui
incluent une indication de déclenchement d’un défaut
de mise à la terre ne sont pas équipés d’un fonction de
protection d’un défaut de mise à la terre. Si une telle
fonction est requise, un calibreur mini d’une fonction de
protection d’un défaut de mise à la terre doit être installé
dans l'unité de contrôle.
Figure 5. Target module.
Catalog No. Description
TARGET00 Blank insert
TARGET02 With ground fault target
Table 6. Target Module catalog numbers.
3–2 Functions
The front of the target module contains two push buttons
and either four or five LEDs. The following functions are
provided by the target module.
Trip Targets
To verify the condition causing a switch trip, press the
VIEW button. The GF LED will light. The RESET button
clears the trip target indication.
Battery Test
If the switch has not tripped or if the trip target has been
cleared, pressing the VIEW button performs a battery test.
The BAT LED will light if the batteries are okay. If the BAT
LED is dim or does not light, replace the Control Unit
batteries as described in Chapter 4, Maintenance and
Trouble-Shooting . Note that the only function of the
Target Module batteries is to power the LEDs; they have
no effect on Control Unit operation and are not required
to store targets or for ground fault functions.
Health Monitor
The Control Unit can be tested for proper functioning if
the Control Unit is powered by one of the following
sources:
• A Test Kit (catalog number TVRMS2) is plugged
into the jack on the front of the Rating Plug.
• The switch is carrying a load current of at least 20%
of its current sensor rating.
• External +24 Vdc control power is connected.
Press and hold the VIEW button for at least five seconds. If
the Control Unit is operating properly, the LTPU LED will
blink slowly. Note that if the Control Unit is not powered
by one of the above sources, this test will not give a true
indication of Control Unit functioning.
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