36
SALICRU
11. MAINTENANCE
11.1. PRECAUTIONS
Only maintaining engineers can maintain the power module
and monitoring bypass module.
1.
The power module should be disassembled from top to
bottom, so as to prevent any inclination from high gravity
centre of the cabinet.
2.
To ensure the safety before maintaining power module and
bypass module, use a multimeter to measure the voltage
between operating parts and the earth to ensure the
voltage is lower than hazardous voltage, i.e. DC voltage is
lower than 60Vdc, and AC maximum voltage is lower than
42.4Vac.
3.
Bypass module is not recommended to hot swap; only when
UPS is in Maintenance Bypass Mode or UPS is completely
powered off, the bypass module can be disassembled.
4.
Wait 10 minutes before opening the cover of the power
module or the bypass after pulling out from the Cabinet.
11.2. INSTRUCTION FOR MAINTAINING POWER MODULE
Confirm the UPS is operating in Normal Mode and the bypass is
working normally before pulling out the power module needed
to be repaired.
1.
Ensure the remaining power module will not be overloaded.
2.
Power off the module.1)Enable.LCD panel -> Menu Operate
-> Enable Module “OFF” Key
; 2)
Press the “OFF” key for 3 seconds, the power module quits
from the system.
3.
Remove the mounting screw on the two front sides of the
power module and pull out the module by two persons.
4.
Wait 10 mins before opening the cover for repairing.
5.
After the repairing is done, push the power module into the
cabinet and the power module will automatically join the
system.
11.3. INSTRUCTION FOR MAINTAINING BYPASS
MODULE
Confirm the UPS is operating in Normal mode and the bypass
is working normally before pulling out the bypassing module
needed to be repaired. Follow the steps below to maintain the
bypass module.
1.
Transfer the system to bypass mode through the LCD
control panel.
2.
Close maintenance bypass switch, the UPS power will be
supplied by maintenance bypass.
3.
Pull out the bypass module and the load is powered through
maintenance bypass.
4.
Remove the mounting screw on the two front sides of the
bypass module and the front signal cable connects to the
bypass module.
5.
Pull out the bypass module and the LCD touch screen goes
off.
6.
Wait 10 mins before opening the cover for repairing.
7.
After the repairing is done, push the bypass module into the
cabinet and the LED touch screen goes on.
8.
The bypass turns on 30S after the LED touch screen goes
on and the bypass indicator goes green and the load is
powered through maintenance bypass and static bypass.
9.
Turn off the maintenance bypass switch and the load is
powered through bypass. The rectifier starts followed by
the inverter.
10.
After 60S, the system transfers to Normal mode.
11.4. REPLACING DUST FILTER (OPTIONAL)
As shown in Fig. 51, there are 3~4 dust filters on the back of
UPS’ front door, each filter is held in place by a bracket on either
side of each filter. The procedure of replacing each filter is as
follows:
1.
Open the front door and locate the filters on the back side
of the front door.
2.
Remove one bracket.
3.
Remove the dust filter to be replaced and insert the clean
one.
4.
Reinstall the bracket.
防尘网
固定条
1
2
1- Dust filter
2- Bracket
Fig. 51.
Dust filter on the back side of front door
