Product Manual A

3. Description 11-2017
20 0962-0131 (Issue 6)Copyright © 2017 Cummins Inc.
No. Description No. Description
1 Active Test LED 7 Set Exercise pushbutton
2 Function indicator LEDs 8 Active Exercise LED
3 Utility Power Available LED 9 Generator Set Power Connected LED
4 Test pushbutton 10 Generator Set Power Available LED
5 Utility Power Connected LED 11 Value indicator LEDs
6 Override pushbutton
FIGURE 12. CONTROL FUNCTION LEDS
3.6.2 ATS Status LEDs
The control panel includes six LEDs that provide Automatic Transfer Switch (ATS) status information.
Utility Power Available: This green LED is lit when the utility power source has acceptable output
voltage.
Genset Power Available: This amber LED is lit when the genset power source has acceptable output
voltage and frequency.
Both power source LEDs can be lit simultaneously.
Utility Power Connected: This green LED is lit when utility power is supplying power to the load.
This LED flashes once per second if there is a failure to connect to or disconnect from utility power, when
commanded. The control makes five attempts (there is ten seconds between each attempt) to connect to
or disconnect from utility power before it flashes the failure.
Genset Power Connected: This amber LED is lit when the genset is supplying power to the load.