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990-4053
Installation Guide APC Silcon 480kW 400V UPS 53
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”
** System OFF **
Normal operation
load power 0%
Display shows
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.
Bypass operation
:NO
Bypass operation
:YES
Bypass operation