32
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
Solution
UPS Red Fault
LED lights up
Check the error code
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
1. Check to see if the battery connection is
properly done, then re-charge the
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.
UPS fails to offer
battery backup or
its runtime is to
short.
The batteries maybe
weak or at the end of
useful service life.
Charge the batteries for 8-hours, then
retest. If the runtime is still less than
expected, the batteries need to be
replaced. Contact your local distributor.
The UPS is in
the Bypass or
the On-Line
mode there are
no Error codes or
faults and there
is no output
voltage at the
terminal blocks.
Thermal Circuit Breaker
CB3 has been tripped.
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 locks itself
and it cannot be
turned off.
To unlock the UPS
press the OFF switch
for 5-seconds and the
audible alarm will sound
2-beeps. Turn Off the
input circuit breaker of
the UPS.
The UPS should be unlocked, but the
original problem may not be resolved. Call
for Service.
33
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
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:
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.
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.
