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After connect the parallel cable, please set the terminal resistance(SW1) as shown in Figure 9-3
If there are more than 2 cabinet, turn on sw1 of the first and last two cabinets, others keep the sw1 off .
Warning:
1.
The parallel cable of each UPS must to be connected correctly. Any wrong connection will cause the UPS
system to operate abnormally.
2.
Please confirm that the ID setting of the module and the cabinet must be matched correctly, so as not to
affect the normal operation of parallel connection. Please follow table2-1
9-5 Parallel System Turn On Procedure
1.
Please make sure the section 9.1 ~ 9.4 has been well followed.
2.
Please confirm the Input breaker and output breakers of each UPS have already been turned "ON".
3.
Turn On the battery Breaker.
4. Turn on the external AC source breaker to apply AC Input source to UPS .
5. Through the panel of the UPS 1(Cabinet A) set up the total power module number and redundant number.
(Refer to User Manual 4.2.6 SETUP Screen).
6. Through the panel of the UPS 1(Cabinet A) get all module information , and confirm the information of all
module can be display on the panel.( Refer to User Manual 4.2.5 MEASUREMENT Screen)
7.
Please confirm the system without any abnormal event through the panel display.(Refer to User Manual
4.2.8 EVENTS Screen)
8. Turn on the UPS through the ON switch or control page of the panel. (Refer to User Manual 4.2.4 Control
Screen)
Two cabinets in parallel
Three cabinets in parallel
Four cabinets in parallel
Figure 9-3
74
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