SERIES
TS33-ON
www.ips-ups.eu
28.05.2018
TS33-ON-manual_EN-R0
36
O
PERATION PROCESS FOR FAULT MODE OF BYPASS OUTPUT
5.8 Maintenance bypass (manual operation)
When UPS is faulty or need on-site maintenance, qualified personnel will manually switch the UPS to maintenance
bypass mode. At this time mains power of bypass input supply power to the load directly, there is no electricity
inside the UPS for maintenance operation.
Note:
Make sure the system bypass is normal and not to start frequency conversion, otherwise it may cause power
failure or even damage to loads.
If the UPS has no output and needs manual operation on maintenance switch, please ensure to disconnect all
input breaker and the UPS display screen is extinguished completely, then put the maintenance switch to
“BYPASS” by hand, otherwise it may cause damage to the UPS.
Refer to 4.6.4 for details.
5.9 Test mode
Test mode is specially used for test purpose, It is available to control UPS step-startup and drive test ect. by back-
end software.
AC/DC
整流
充电器
DC/DC
升压
电池
+
-
DC/AC
逆变
输出
主路输入
维修旁路
旁路输入
Maintenance bypass
Bypass input
Mains circuit
input
AC / DC
rectifier
DC / DC boost
DC / AC
inverter
Battery
Charger