APC 990-4053 manual Action, Display shows, Lamp indication On Service Bypass Panel

Models: 990-4053

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Options/Accessories

Action

1.Check that output switch (Q004) is in position “0”

2.Check that all output switches (Q002) are in position “0”

3.Turn input switches (Q001) to position “1”

4.Open the UPS front door and press the green “ON” push-botton

5.Press on the keyboard

6.Press or on the keyboard until

7.

Press

on the keyboard

8.

Press

on the keyboard

All systems will transfer to bypass operation

9.Check that all output switches (Q002) are in position “0”

10.Turn all output switches (Q002) to position ”1“

11.Turn the output switch (Q004) to position ”1“

12. Turn the bypass switch (Q003) to position “0”

Display shows

** System OFF **

Normal operation load power 0%

Bypass operation :NO

Bypass operation

:YES

Bypass operation

Lamp indication

on Service Bypass Panel

The green lamps (H002) above all the output switch handles (Q002) lights.

The green lamp

(H004) above the output switch (Q004) handle also lights.

The green lamps (H002) above all the output switch handles (Q002) light. The green lamp (H004) above the output switch (Q004) handle and the green lamp (H003) above the bypass switch light.

The green lamps (H002) and (H004) do not light any longer. (H003) will light until normal operation.

990-4053

Installation Guide APC Silcon 480kW 400V UPS

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APC 990-4053 manual Action, Display shows, Lamp indication On Service Bypass Panel