Troubleshooting Guide - GMP GM 110 PRO Manual Del Usuario

Irregular operation of the UPS is very often not an indication of a fault but is simply caused by simple problems or
distractions.
We therefore recommend you consult the table here below, which provides some information that will help you to solve
the most common problems.
WARNING: the table below frequently recommends the use of the maintenance BYPASS. We remind you that
before restoring the UPS to operation, you must make sure that it is on and not in STAND-BY.
If the UPS is in this latter mode, turn on the UPS by accessing the "SYSTEM ON" menu and wait for the
power-on sequence to be completed before removing the maintenance BYPASS.
For further details read the procedures described in the maintenance BYPASS (SWMB) paragraph.
NOTE: For a detailed explanation of the codes listed in the table, see the "STATUS/ALARM CODES" paragraph.
PROBLEM
THE UPS CONNECTED
TO THE MAINS, DOES
NOT SWITCH TO STAND
BY MODE
(THE RED
BLOCK/STAND-BY LED
DOES NOT FLASH, NO
BEEP SOUNDS AND THE
DISPLAY DOES NOT
LIGHT UP)
NO POWER REACHES
THE LOAD
THE UPS OPERATES
OFF THE BATTERIES
EVEN THOUGH MAINS
POWER IS PRESENT

TROUBLESHOOTING GUIDE

POSSIBLE CAUSE
CONNECTION TO THE INPUT
TERMINAL MISSING
NEUTRAL CONNECTION
MISSING
1/0 SWITCH LOCATED
BEHIND THE DOOR IN 0
POSITION
THE SWIN SWITCH LOCATED
BEHIND THE DOOR IS OPEN
MAINS POWER FAILURE
(BLACKOUT)
INTERVENTION OF
UPSTREAM PROTECTION
DEVICE
CONNECTION TO THE
OUTPUT TERMINALS
MISSING
THE SWOUT SWITCH
LOCATED BEHIND THE DOOR
IS OPEN
THE UPS IS IN STAND-BY
MODE
STAND-BY OFF MODE HAS
BEEN SELECTED
MALFUNCTION OF THE UPS
AND AUTOMATIC BYPASS
OUT OF USE
INTERVENTION OF THE
UPSTREAM PROTECTION
DEVICE
THE INPUT VOLTAGE IS
OUTSIDE THE ACCEPTED
OPERATING VALUES FOR
MAINS POWER
Connect the mains to the terminals following the
indications in the paragraph on Installation.
The UPS cannot
connection. WARNING: The absence of this connection
could damage the UPS and the load.
Connect the mains to the terminals following the
indications in the paragraph on Installation.
Set the switch to 1 (if present)
Close the switch
Check that mains power is restored and if necessary,
switch on the batteries to power the load.
Restore the protection.
WARNING: check that there is no overload or short
circuit on the UPS output.
Connect the load to the terminals
Close the switch
Run the start-up sequence
Change the operating
(emergency) mode is used to power the loads only
during blackouts.
Insert the maintenance bypass (SWMB) and contact
the nearest service centre.
Restore the protection.
WARNING: check that there is no overload or short
circuit on the UPS output.
Problem caused by mains power. Wait until the input
voltage falls within the tolerance values. The UPS will
automatically switch over to mains power.
- 97 -
SOLUTION
operate without the
mode: STAND-BY
neutral
OFF