Load Shedding and Availability Warning
The load shedding and availability warning is an accessory module installed on TransferPacT Automatic and TransferPacT Active Automatic controller with following functions:
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Load shedding output, 1 NO and 1 NC dry contacts is provided.
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Available warning, 1 NO dry contact is provided.
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Green LED is on the top of the accessory indicates the power status and proper connection of the accessory.
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Communication with the main MCU on ATSE.
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Only one load shedding and availability warning is allowed to be installed on one product.
Application Load Shedding
The alternate power (genset) sometimes may not afford all loads. A signal from controller will shed some non-critical loads.
Load shedding will send the signal after enabling this function.
Application Availability Warning
When transfer switch is not in auto or power lost on two sources, a dry contact will give the signal.
After back to auto status or power recovery, the signal will be stopped.
Terminals
Load shedding: 1 NO + 1 NC
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NO: LS1-LS4
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NC: LS1-LS2
When load shedding initiates, NC terminal will open, and NO terminal will close.
For status output: 1 NO
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NO: AW1-AW2
When availability warning initiates, NO terminal will close.
Signal Type
Digital output.
Performance
|
Electrical characteristics |
Ratings |
|---|---|
|
Ui |
300 V |
|
Maximum output voltage |
250 VAC, 50 / 60 Hz or 30 VDC |
|
Maximum output current |
5 A |
|
Over voltage category |
III |
|
Pollution degree |
3 |
|
Altitude |
2000 m |
Cable Capacity for Terminals
The cable capacity for the terminals are 0.05 – 2.6 mm2 (AWG 30 ~ 13).