GE Monogram Zenith Controls Automatic Generator Exerciser, Selecting Exerciser Without Transfer

RM4 Control Interface (Optional ) (cont’d)

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.

Automatic Generator Exerciser

The automatic generator exerciser comes preset with a 28-day exerciser schedule (the customer unit’s preset day cycle may vary due to specifications from the generator supplier). The exerciser, when enabled, will automatically start the generator every twenty-eighth day and run the unit loaded or unloaded for 10 minutes. The exerciser interval is

DANGER

Turn OFF all power before selecting.

JP (CDT SELECT)

selectable through (JP) jumper selection on the con- troller board. The selections are 7, 14, 21 or 28 day.

Selecting Exerciser Without Transfer

To start the automatic exerciser without transfer, depress the Exerciser Start/Stop button. The generator will start and run for 10 minutes.* Once this first exercise is com- plete, the generator LED will flash at a 1-second interval indicating the exerciser is enabled. Once the exerciser times out (7, 14, 21 or 28 day interval), the generator will start and run again for 10 minutes. This will repeat until the exerciser is disabled. To stop the exerciser mode, depress the exerciser Start/Stop again and the generator light will stop flashing, indicating the exerciser mode has been canceled.

7 Day

4￿ 5￿ 6

BA

14 Day

4￿ 5￿ 6

B A

See Figure 3, Page 4

21 Day

4￿ 5￿ 6

BA

28 Day

4 5 6

B A

JP (VOLTAGE/FREQUENCY SELECT)

Selecting Exerciser With Transfer

To enable the automatic exerciser with transfer, depress the Exerciser Start/Stop button and the transfer button. The generator will start and the load will be transferred to the generator. After 10 minutes*, the load will be transferred back to the utility. Once this first exercise is complete, the generator LED and the Generator position LED will flash at a 1-second interval indicating the exerciser is enabled. Once the exerciser has timed out (7, 14, 21 or 28 day interval), the generator will start and transfer the load to Generator power for 10 minutes. At the end of this 10-minute period, the unit will transfer the load back to the utility and the generator will shut off. This will repeat until the exerciser is disabled. To stop the exerciser mode, depress the exerciser Start/Stop again and the generator light will stop flashing, indicating the exerciser mode has been canceled.

*Pressing and releasing the generator Start/Stop button will cancel the current test. The exerciser will go off at approximately the same time it was started (7, 14, 21 or 28 days) later.

NOTE: Transfer will cause short interruption of power.

See Figure 3, Page 4

Do not adjust the jumper positions.

This service to be performed by qualified personnel only.

208 V			220 V		240 V
B			B		B
A			A		A
1	2		1	2	1	2
		50 Hz			60 Hz
		B			B
		A			A
		3	Figure 6		3

■ GE Zenith Controls ZTX Operation and Maintenance Manual (62R-2000) 9 ■