006-0006885 08/14/18
Rev H
42 of 48
MINV-4000-1U-28 Guide www.synqor.com
Section VII
Trouble-Shooting Guide
Fault Conditions
The SynQor MINV has no user-serviceable parts within it. If it has an internal malfunction only
factory trained personnel should attempt to repair it.
There are, however, several external conditions that could cause the MINV to not operate as
desired. These external conditions can likely be corrected by the user.
The 11 LEDs on the front panel are the best and first place to look to determine what might be
wrong with the MINV. The table on the next several pages is therefore organized by what these
LEDs indicate, and for each indication there is a listing of what might possibly be wrong.
The front panel LED array is shown below. The designations of the 11 LEDs in this array are used
in the following table.
LED
Indication
Possible Problem(s)
D0:
DC INPUT
Power LED
LED is OFF
• The DC INPUT power source is not turned on.
• The DC INPUT cable is not connected or it is wired wrong.
• The MINV is OFF and needs to be turned ON.
LED is AMBER
• The DC INPUT voltage is either too low or too high.
LED is RED
• The DC INPUT voltage is missing at least one phase on its source.
A1:
AC OUTPUT
Power LED
LED is OFF
• The MINV is OFF and needs to be turned ON.
LED is AMBER
• The AC OUTPUT load is higher than 4000W or 5000VA by enough to
trigger the power limit circuitry.
• The AC OUTPUT load crest factor is too high.
• The AC OUTPUT is shorted within the cable or a load.
• Some other source of power is connected to the AC OUTPUT.
LED is RED
• The MINV has been turned OFF, but due to a malfunction within the
MINV it is still running and providing an AC OUTPUT voltage.
• Some other source of voltage is connected to the AC OUTPUT and is
powering it when the MINV is disabled.
