Operating The System; Turning The Ups On; Turning The Ups Off; Transferring The Load To Bypass - Gamatronic Centric 50 kVA User Manual

4.3

Operating the system

The "Operation" option on the system main menu is used to:
•
Turn the Centric ON (System on).
•
Turn the Centric OFF (System off).
•
Turn the power modules OFF.
•
Turn the power modules ON.
•
Transfer the load from the inverter to bypass power.
•
Transfer the load from bypass power to the inverter.
4.3.1

Turning the UPS ON

4.3.2

Turning the UPS OFF

4.3.3

Transferring the load to bypass

During normal operation, the load is supplied with power from the inverter. The inverter voltage is
controlled and regulated to protect the load from any aberrations in the local ac power. When the
load is on the inverter, battery backup is always ready to ensure a continuous power supply even
in the event of a local ac power failure.
Transferring the load to bypass takes the load off the regulated voltage of the inverter and
supplies the load with power directly from the local ac mains. In bypass mode, no power
conditioning is in effect, and in the event of an ac mains failure there is no battery backup to
supply the load. Transfer to bypass can occur automatically, when the controller detects a
malfunction in the inverter or a short-circuit in the load. Transfer to bypass can also be
accomplished manually.
To manually transfer the load from the inverter to the bypass power:
Main Menu > Operation > Transfer load > Transfer Load to Bypass > OK
4.3.4

Transferring the load to the inverter

To transfer the load from bypass power to inverter power:
Main Menu > Operation > Transfer load > Transfer Load to Bypass > OK
See section 4.3.3 above for an explanation of the difference between inverter mode and bypass
mode.
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Gamatronic Electronic Industries Ltd.
CENTRIC User Guide, Release 0.3