Return From Maintenance Bypass Procedure - ONEAC SE041XAT User Instruction Manual

UPS Start-Up & Shut Down
Return from
Maintenance
Bypass Procedure
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6. Press "OK" to switch off the inverter.
7. The display reads: "UPS Bypass Output" and Bypass LED is illuminated.
8. Remove the safety cover from the Maintenance Bypass Switch and switch from "UPS" to "Bypass."
ATTENTION: At this point the critical load is no longer protected by battery backup during interruptions and
disturbances on the mains supply.
9. Open both input circuit breakers (Main 1 and Bypass).
10. The UPS is now switched off, all LEDs are extinguished and the load is supplied directly from the mains
supply via bypass.
1. Ensure all switches and circuit breakers upstream of the UPS are closed.
2. Close both input circuit breakers (Main 1 and Bypass).
3. Wait for at least 30 seconds until the output voltage has stabilized (yellow "Bypass" LED illuminated).
The display reads: "UPS: Bypass."
4. Switch the Maintenance bypass switch from "Bypass" to "UPS" and replace the cover.
5. Press the "MENU" button.
6. Select submenu "Control."
7. Press "OK."
8. Select submenu "Turn UPS ON/OFF."
9. Press "OK." The control panel displays "Turn UPS to ONLINE."
10. Press "OK" to switch on the inverter. The green "ON" LED is illuminated. The UPS is now in ONLINE
operation.
ONEAC Sinergy SE II Series UPS User Manual