Issue:
PowerChute Network Shutdown remaining runtime threshold does not trigger OS shutdown when communicating with SURTD when NMC 1 (AP9617, AP9618, AP9619) is installed. The OS remains running until the UPS reaches low battery and then the OS is commanded to power down due to low battery.

Product Line:
PowerChute Network Shutdown

Environment:
All supported OS

Cause:
SURTD reports the remaining runtime to PowerChute in seconds when PowerChute is expecting to receive the time in minutes.

Solution:
PowerChute expects the threshold to be entered in seconds so to compensate for the difference in time multiply time by 60.

Shutdown Examples
Shut OS down when UPS fails below 25 minutes = 1500 seconds x 60 = 90000 seconds
Shut OS down when UPS fails below 20 minutes = 1200 seconds x 60 = 72000 seconds
Shut OS down when UPS fails below 15 minutes = 900 seconds x 60 = 54000 seconds
Shut OS down when UPS fails below 10 minutes = 600 seconds x 60 = 36000 seconds

Another option is to replace the NMC with AP9630 or AP9631. The AP9630 and AP9631 do not exhibit the issue.

Released for:Schneider Electric South Africa