Control Interface (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 ZTX automatic generator Exerciser can perform a
Selection of the exerciser interval is through three jumpers located on the controller board as shown in Figure 6. The Exerciser comes from the factory preset at 28 days and is not active. To change the exerciser interval, remove power from the controller completely, and move the jumpers at positions jp4 and jp5 to match the selected
Selecting Exerciser with or without Load Transfer
The Exerciser function can be programmed to perform either a
Setting and Canceling an Exerciser
In order to set an automatic Exerciser, choose the exer- ciser interval and whether a
To establish an Exerciser
At the exact time desired, press and hold the EXER SET key for at least 1 second. The ATS will immediately start an initial exercise by attempting to start the generator, running through the Timers (figure 3) and will either only start the generator, or, will start the generator and transfer the Load from S1 to S2, for the time duration of the exerciser interval, 10 minutes. Once the Exercise is completed, the ATS will continue the timing sequence and retransfer the Load back to S1, cool down the gen- erator and terminate until the next scheduled interval time. Any time an Exerciser has been established and is scheduled, the S2 Available and S2 position LEDs quick- ly blink approximately every 4 seconds as a reminder. However, if S2 source becomes available during the time
the ATS is waiting for the next impending exercise, the ATS will not show a blinking indication but instead will show the S2 Available LED as solidly on to indicate the true condition of S2. Any Exercise event can be prema- turely canceled by pressing the CANCEL key.
Note: pressing the CANCEL key in the middle of an scheduled event does not cancel a set Exerciser, but only cancels the current event.
To completely clear an already-set Exerciser
A set Exerciser can be completely cleared out of memory by pressing and holding the CANCEL key for at least 10 Seconds causing the blink indication to stop.
If S2 fails to meet the criteria for a good source, during an Exercise attempt, the Controller will continue to hold the
Automatic Exerciser Jumper Settings
7 Day |
| 14 Day |
|
JP4 |
| JP4 |
|
JP5 |
| JP5 |
|
A | B | A | B |
21 Day |
| 28 Day |
|
JP4 |
| JP4 |
|
JP5 |
| JP5 |
|
A | B | A | B |
| JP6 | No Load | |
| JP6 | Load |
|
| A | B |
|
Figure 8
■ GE Zenith Controls | ZTX Operation and Maintenance Manual | 9 ■ |