Maintenance - CBC EA 900RT 1KVAS User Manual

TRUE ON LINE UPS
Problem Possible cause
No indication, no warning tone No input voltage
even though system is
connected to mains power
Input switch has
supply
disconnected
[for 6K(H)/ 10K(H)]
LINE LED blinks Phase and neutral
conductor at input
of UPS system are
reversed
LINE LED blinks and Input power and/or
BATTERY-LED lights up frequency are out of
tolerance
LINE and BYPASS LED light Inverter not
switched on
up even though the power
supply is available
INVERTER LED lights up, Mains power supply
and audible alarm sounding has failed
every 1 or 4 seconds
INVERTER LED lights up, Input switch
warning tone at intervals of disconnected
every 1 or 4 seconds, mains
power supply available
[for 6K/ 10K]
FAULT LED lights, warning Overload
tone once a second
FAULT-LED lights up, UPS fault
permanent warning tone
Emergency supply period Batteries not fully
shorter than nominal value charged / batteries
defect
FAULT LED lights, BATTERY - Charger or
LED blinks, warning tone once Batteries damaged
a second
FAULT LED lights,Indicator3 BATSCR short
and Indicator6 lights, [for 6K/ 10K]
permanent warning tone
22
Remedy
Check building wiring socket outlet
and input cable.
Set the Input switch to ON
Rotate mains power socket by 180
or connect UPS system according to
chapter 5 onnection and operation .
Check input power source and
inform dealer if necessary
Press On-Switch I
Switching to battery mode automatically.
When audible alarm sounding every
second, battery is almost empty.
Set the Input switch to ON . If the
problem persists, please inform
your dealer.
Remove loads of UPS output.
Notify dealer!!
Charge the batteries for at least
1 - 2 hours and then check
capacity. If the problem still
persists, consult your dealer.
Notify dealer!!
Notify dealer!!
Please have the following information at hand before calling the After-Sales Service
Department:
1. Model number, serial number
2. Date on which the problem occurred
3. Detailed description of the problem

7. Maintenance

7-1 Operation
The UPS system contains no user-serviceable parts. If the battery service life (3~5
years at 25 ambient temperature) has been exceeded, the batteries must be replaced.
In this case please contact your dealer.
7-2 Storage
If the batteries are stored in temperate climatic zones, they should be charged every
three months for 8-10 hours (see Chapter 5 "Connection and Operation"). You should
shorten the charging intervals to two months at locations subject to high temperatures.
TRUE ON LINE UPS
23