Section VIII
Trouble-Shooting Guide
006-0006205
UPS-1500 Series
Rev ZC
59 of 60
05/28/2019
▪ The cycle above repeats itself for a total of three times, at which point the UPS stops trying
to draw power from the DC INPUT for one minute. After this one minute another set of 3
cycles are repeated, followed by another stop for one minute, and so on.
This same problem can also occur for the AC INPUT if the voltage at the AC source is close to the
specified 80 Vrms minimum limit. In this case the UPS will try ten times before stopping for a one
minute interval.
The solution to this problem is to make sure that the cable has wires of sufficient diameter,
or “gauge” for the length of the cable. The longer the cable, the bigger diameter the wire
should have.
See the section “Power Cable Wire Size” for recommended cable wire sizes.
