Use and Care Manual

4-2

TABLE 4-1. OPERATOR PANEL LED INDICATORS

Indicator

Definition

Utility Power Available This indicator lights when the utility source voltage sensor has determined that Utility

power is available and is within acceptable voltage limits.

Utility Connected 1. Lights constantly when the transfer switch is connected to the Utility.

2. Blinks once per second when the transfer switch has failed to connect to or

disconnect from the Utility when commanded.

3. Is off when the transfer switch is not connected to the Utility.

Generator Power Available This indicator lights when the generator source voltage sensor has determined that

generator power is within acceptable voltage and frequency limits.

Generator Connected 1. Lights constantly when the transfer switch is connected to the Generator.

2. Blinks once per second when the transfer switch has failed to connect to or

disconnect from the Generator when commanded.

3. Is off when the transfer switch is not connected to the Generator.

Exercise The following describes the Exercise LED when an exercise is enabled.

1. Lights constantly when repeat exercise periods have been set.

2. Blinks twice per second when the Set Exercise button is pressed and held to set

or cancel an exercise period.

3. Blinks once per second when an exercise period is active.

4. Is off when no repeat exercise periods are set.

Test 1. This indicator blinks at two times per second rate during the two seconds that the

Test button is pressed to acknowledge that a test has been activated or when the

remote test input is grounded.

2. The indicator lights constantly during the test and goes out once the test is termi-

nated or normal power has failed.

3. The indicator blinks at two times per second rate during the two seconds to ac-

knowledge that the Test button has been pressed to cancel a Test. The light then

goes out.