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8 GE Zenith Controls
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ZTX Operation and Maintenance Manual (62
R-2000)
Automatic Transfer Generator
Testing (One Time Test)
Verify that the transfer switch UTILITY available and
position
LEDs are illuminated.
Press and hold the
GENERATOR START/STOP button
and the
TRANSFER button for 5 seconds. This will
cause the generator to start. Once the generator has
started, the Generator
LED will illuminate.
Once the
GENERATOR power
LED has come on, the
transfer switch will now switch the load to the Generator.
The GENERATOR position
LED will illuminate.
The transfer switch will be connected to the generator
for 5 minutes.
* Then the switch will automatically return to
the utility and the
UTILITY Position
LED will illuminate.
The generator will cool down for 5 minutes (U Timer)
and then shut down. The
GENERATOR LED will go off.
This completes the automatic test.
Transfer Generator Testing
(Forcing Operation with Keypad)
Verify that the transfer switch UTILITY available and posi-
tion
LEDs are illuminated.
Press and hold the
GENERATOR START/STOP button for 5
seconds. This will start the generator.
Verify that the
GENERATOR available
LED
has illuminated.
Press the
TRANSFER button. The switch will transfer
to the Generator source position. The
GENERATOR
position LED will now be illuminated.
Pressing the
TRANSFER button again will cause the
unit to transfer to the utility power source. The
UTILITY
position
LED will illuminate.
Pressing the
GENERATOR START/STOP button will stop
the generator.
RM
4 Control Interface (
Optional
)
(cont’d)
* Pressing and releasing the generator Start/Stop button
will cancel current test.
C
C
D
B
F
A
B
F
C
D
B
F
+
A
B
+
LED Diagnostic Flash Codes
Rapidly Flashing Generator
Availability
LED
Generator failed to start.
Generator starts but failed to reach proper
operating parameters.
Generator became over loaded for an extended
period of time.
Optional generator crank board (see generator
fault flash table on page 14)
Rapidly Flashing Generator
Position
LED
Switch did not transfer to Generator position.
Rapidly Flashing Utility
Position
LED
Switch did not transfer to Utility position.
C
D
B
I
C
I
I
NOTE: All fault alarms can be cleared by
depressing the reset button.
NOTE: Transfer will cause short interruption of power.
DANGER
HAZARDOUS VOLTAGE
(Can Cause Severe Injury or Death)
Turn OFF all power before installation, adjustment, or removal of transfer switch or any of its components.