Operation – Operation Procedures
Parallel System – turning into normal operation from external bypass.
Never attempt to turn the UPS into normal operation till you have verified that there are no internal UPS faults.
Caution
From the external MBP: Turn all input | From the external MBP: Check that all the |
switches (Q001) to position “1” (ON). | output lamps (Q002) are lit. |
From the external MBP: Turn all output | From the UPS: Connect the batteries in the |
switches (Q002) to position “1” (ON). The | UPS by pushing them in. |
lamp indicator of the output isolation breaker |
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(Q004) is still lit. |
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From the XR Enclosure(s) (if available): Set | From the XR Enclosure(s) (if available): |
the DC disconnect switch (if available) to the | Connect the batteries by pushing them in. |
ON position. |
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From the UPS: Turn ON all UPS units from | From the external MBP: Check that all the |
each display via | lamps (Q002) are unlit. |
Yes, Turn Load ON. |
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From the UPS: Turn the UPS units into | From the external MBP: Check that the lamp |
bypass from one UPS display via Control– | indicator of the output isolation breaker is lit |
UPS into | (Q004). |
Check that the UPS units are in bypass. The |
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green (LOAD ON) and the yellow (BYPASS) |
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LEDs are lit. |
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From the external MBP: Turn the output isolation breaker (Q004) to position “1” (ON). Now the lamps (Q003 + Q004) are lit.
From the UPS: Turn the UPS units out of bypass from the display via
From the external MBP: Turn the bypass switch (Q003) to position “0” (OFF). The lamps (Q004) are unlit, but (Q003) is lit until the UPS is running in normal operation.
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