Troubleshooting Guide; Replacing The Batteries - Para systems Minuteman ED10000T User Manual

Minuteman parallel redundant on-line series
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6 Troubleshooting Guide

If the UPS malfunctions, check the followings:
a. Is the wiring of the input and the output correct?
b. Is the input voltage within the acceptable window of the UPS?
If items a. and b. above are correct then proceed with the following chart. If the
problem persists, see Obtaining Service.
Situation
Check Items
UPS Red Fault
Check the error code
LED lights up
shown on the LCD
screen
1.Er05,
&
2.Er06, Er10, Er12,
Er28 &
3.EPO
4.Er11, Er33
5.Er14
6.
Er16, Er27
7.Er21
8.other error code
UPS fails to offer
The
batteries
battery backup or
weak or at the end of
its runtime is to
useful service life.
short.
The UPS is in
Thermal Circuit Breaker
the
Bypass
or
CB3 has been tripped.
the
On-Line
mode there are
no Error codes or
faults and there
is
no
output
voltage
at
the
terminal blocks.
UPS locks itself
To
unlock
the
and it cannot be
press the OFF switch
turned off.
for 5-seconds and the
audible alarm will sound
2-beeps. Turn Off the
input circuit breaker of
the UPS.
Solution
1. Check to see if the battery connection is
properly
done,
then
batteries for 8-hours to see whether the
UPS will backup normally; call for
service.
2. Remove some of the load from the UPS
output. Check the Input power cord.
3. Remove the short circuit at the EPO
terminal.
4. Remove all objects that block the
ventilation holes.
5. Check the fans on rear panel.
6. All of parameters except the ID number
in the parallel UPS must be same.
7. Reconnect the RJ-45 wire or set a UPS
with ID=1.
8. Call for Service.
maybe
Charge the batteries for 8-hours, then
retest. If the runtime is still less than
expected,
the
batteries
replaced. Contact your local distributor.
Turn off the UPS. Turn the Input circuit
breaker on the rear panel to the Off
position. Ensure the Maintenance Bypass
Switch is in the "INV" position. Remove the
two retaining screws from CB3's cover
plate. Reset the Thermal Circuit Breaker
CB3.
UPS
The UPS should be unlocked, but the
original problem may not be resolved. Call
for Service.
32

7 Replacing the Batteries

(QUALIFIED SERVICE PERSONNEL ONLY)
Please read all of the WARNINGS and CAUTIONS before attempting to
service the batteries.
WARNING: This Uninterruptible Power Supply contains potentially hazardous
voltages. Do not attempt to disassemble the UPS system beyond the battery
replacement procedure. This UPS system contains no user serviceable parts.
Maintenance and Battery replacement must be performed by QUALIFIED
re-charge
the
SERVICE PERSONNEL ONLY.
CAUTION: Do not open or mutilate batteries. Released electrolyte is harmful to
the skin and eyes and may be toxic.
CAUTION: Do not dispose of batteries in a fire. The batteries may explode.
CAUTION: The batteries in this UPS are recyclable. Dispose of the batteries
properly. The batteries contain lead and pose a hazard to the environment and
human health if not disposed of properly. Refer to local codes for proper
disposal requirements or return the battery to the supplier.
CAUTION: The battery system voltage is 240VDC and can present a risk of
electrical shock. These batteries produce sufficient current to burn wire or tools
very rapidly, producing molten metal. Observe these precautions when
replacing the batteries:
need
to
be
CAUTION: Replace the batteries with the same number and type as originally
installed. These batteries have pressure-operated vents. These batteries
contain sealed non-spillable maintenance-free lead acid batteries.
1. Remove watches, rings, or other metal objects.
2. Use hand tools with insulated handles.
3. Wear protective eye gear (goggles), rubber gloves and boots.
4. Do not lay tools or other metal parts on top of batteries.
5. Disconnect the charging source prior to connecting or disconnecting
the battery terminals.
6. Determine if the battery is inadvertently grounded. If the battery is,
remove the source of the grounding. Contact with any part of a
grounded battery can result in an electrical shock. The likelihood of
such shock will be reduced, if such grounds are removed during
installation and maintenance.
33

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