Stop/Start UPS and Operating the External Service Bypass
Action
Steps
1. | Press | on the keyboard | Display shows | |
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2. | Press | or | on the keyboard until | Bypass operation |
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| : NO |
3. | Press | on the keyboard | Bypass operation | |
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| : YES |
4. | Press | on the keyboard |
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All systems switch to bypass operation
Do not switch off any of the UPS systems until steps
5.Check light indication on the bypass panel
6.Set the external bypass switch (Q003) to position 1
7.Set the output switch (Q004) to position 0
8.Set all output switches (Q002) to position 0
9.Open the front door of any one system and press the red OFF button
The acoustic alarm sounds for 30 secs* Repeat for (all) other system(s)
10.Set all input switches (Q001) to position 0
The red alarm LED below the display lights up and
the acoustic alarm sounds for 30 secs*
*Reset the acoustic alarm by pressing thekey.
Bypass operation
Lamp indication on Bypass Panel
Green light (H003) above the bypass switch handle (Q003) lights up
Green light (H004) above the output switch handle (Q004) and green lights (H002) above the output switch handles (Q002) light up
H003 switches off
H002 and H004 still on
H002 and H004 still on
Display shows
**System OFF**
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User Guide APC Silcon | 13 |