SERIES
TS33-ON
www.ips-ups.eu
28.05.2018
TS33-ON-manual_EN-R0
31
then install the cover plate of the maintenance switch.
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 on-line maintenance, disconnect all input breaker and ensure the
UPS display screen is extinguished, then put the maintenance switch to
“BYPASS” by hand, otherwise it may
cause damage to the UPS.
4.7 Parallel UPS operation
Follow single UPS operation requirements for general operation of parallel system. Before turning on the
parallel UPS units, setting the physical address (ID) of each UPS is required, ensure each ID is different. Refer
to panel settings operation for setting method details.
4.7.1 Start up parallel UPS
Startup with mains power
:
After access mains power, press the
Power ON
button
+
of any one of
UPS more than half a second to start up parallel UPS. All UPS units will be turned on at same time, then
meanwhile switch to inverter status, working in mains power mode.
Startup with the battery:
Method 1: press first key
of each UPS, after each UPS having working power
source, press the
Power ON
button
+
of any one of UPS more than half a second to start up parallel
UPS. All UPS units will be turned on at same time, then meanwhile switch to inverter status, working in mains
power mode. Method 2: Execute startup operation on each UPS one by one.
4.7.2 Shut down parallel UPS
Keep
pressing the
Power OFF
button
+
of any one of UPS more than 4 seconds to turn off parallel UPS
units; press the
Power OFF
button
+
of any one of UPS more than half a second and less than 4
seconds to turn off the single UPS unit.
4.7.3 Parallel UPS system maintenance
Follow single UPS maintenance requirements for parallel system maintenance. If one of parallel system UPS
fails and need to maintain it, firstly it is required to cut off the breaker between input / output of the faulty UPS
and parallel system, ensure that there is no electrical connection for the faulty UPS and parallel system, then
disconnect all parallel cables of the faulty UPS and parallel system, and then make maintenance operation for
the faulty one.