SERIES
TS33-ON
www.ips-ups.eu
28.05.2018
TS33-ON-manual_EN-R0
33
Standby mode operation process
5.3 Bypass mode
In bypass mode, mains power of bypass input goes through the filter to the load. If mains circuit input is normal,
then automatically process AC / DC rectification, after rectificating automatically start the charger charging
batteries.
LED indicator in bypass mode is as shown in the figure below (white color indicates illuminated status), meanwhile
LCD display byPASS characters.
There are two situations as follows to enter bypass mode:
Bypass is abnormal after the UPS is powered up (including frequency conversion enable) and the UPS isn’t turned on.
Shut down in mains power mode, overload or overtemperature
Exit fault mode and bypass are normal
When bypass is normal, turn off the UPS or the inverter circuit has failure, the UPS transfer to bypass mode to
supply uninterruptible power to the load.
Note:
Bypass mode doesn’t have function of backup.
B
YPASS MODE OPERATION PROCESS
5.4 Mains power mode (Frequency conversion mode)
In mains power mode, the mains power from mains circuit input supply AC power to the UPS rectification, and
supply DC power to the inverter circuit after PFC power factor correction, and then supply uninterruptible AC power
to the load via the inverter circuit. After the inverter startup, automatically start the charger charging batteries.
LED indicator in mains power mode is as shown in the figure below: the inverter LED indicator (green) is
illuminated, meanwhile LCD display LinE characters.
AC
/
DC
整流
充
电
器
DC
/
DC
升
压
电
池
+
-
DC
/
AC
逆
变
Mains circ
input
Bypass Input
Charger
Battery
AC / DC
rectifier
DC / DC boost
DC / AC inverter
Bypass input
Mains circuit
input
