Maintained test switch "6A"
An auxiliary two-position maintained test switch is located on the cabinet door. This test switch is in addition to the standard test switch that is found on all MX100 controllers. When the auxiliary test switch is activated in the TEST position, the test will simulate a normal line failure. The transfer switch will automatically transfer the load to the EMERGENCY position. When the test switch is returned to the AUTOMATIC position, the transfer switch will restore the load to the NORMAL position. If the emergency power source fails in the EMERGENCY position, the ATS will transfer the load back to the normal power source immediately. If the normal power source is not available, the switch will remain in the EMERGENCY position.
Plant Exerciser "C"
This plant exerciser automatically starts the generator for selected time intervals. This exerciser runs the generator without a load. This test runs on a weekly basis.
Plant Exerciser "D"
This plant exerciser automatically starts the generator for selected time intervals. The exerciser runs the generator with a load. This test runs on a weekly basis.
Plant Exerciser "C/D"
This plant exerciser automatically starts the generator in order to run without a load, or the exerciser simulates a power failure. If the exerciser simulates a power failure, the exerciser runs the generator with a load. This test is run on a weekly basis.
Plant Exerciser "C/D-365"
This plant exerciser automatically starts the generator in order to run without a load, or the exerciser simulates a power failure. If the exerciser simulates a power failure, the exerciser runs the generator with a load. This test is done on a yearly basis.
Remote Peak Shave or Area Protection Circuit
This option is also referred to as the "Q2" option.
The "Q2" option provides a bypass for the immediate return to the normal power source if the emergency power source fails and the normal power source is available.
Disable the Transfer of the Load to the EMERGENCY Position From a Remote Location
This option is also referred to as the "Q3" option.
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| Illustration 1 | g00828147 |
If a voltage is applied to the "Q3" input, the transfer switch will allow the load to be transferred to the emergency power source. No input on "Q3" will disable a transfer to the emergency power source.
Note: In order to enable the "Q3" option, engage the "Q3" jumper.
The "Q3" relay requires an input of 24 DCV.