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Wire the User Interface to a UPS (Optional)
You can connect an auxiliary source of power to the User Interface to allow relays to change
state as needed in emergency lighting control systems where the panel must shed loads to
avoid overloading the emergency power source.
WARNING:
auxiliary power source, the Power Control Processor Mk2 will be energized
by the auxiliary feed regardless of the state of the main feed to the panel.
The control breaker (breaker 25) will not be functional and you will remove
it.
CAUTION:
a minimum of 200 W peak load.
Installation
from Upstream Normal/Emergency Panel
120 V Feed from
Alternate Panel by Others
Uninterruptible
Power Supply
120 VAC Control Power Supply
Typical Top-feed Installation
After you connect the user interface termination board to the
The UPS for this application must be UL924 Listed and rated for
120/208 V Three Phase
ERP
Control
Electronics
Relay Outputs
to Loads
RELAY
RELAY
RELAY
RELAY
26
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