Appendix B: Paralleling UPS Devices
ONEAC Sinergy SE II Series UPS User Manual
39
Step C
1. Remove cover of the parallel port of all parallel devices for linking between UPSs.
2. Use the 25-pin standard control cable to connect to one of the parallel ports (the cable is supplied with
the UPS). Parallel UPS are connected in-line, not in a circle, i.e., 2 cables connect 3 UPSs, 1 cable
connects 2 UPSs.
Step D
1. Close the UPS input breakers (main1/bypass) of UPS 1, then UPS 2, and UPS3.
2. Close the mains supply distribution circuit breaker. All bypass indicators should illuminate
simultaneously.
3. Switch the bypass switch (located under orange cover) on the rear of UPS 1 from “OFF” to “UPS”.
4. On UPS 2 repeat step 3.
5. On UPS 3 repeat step 3.
6. Close all UPS downstream circuit breakers/fuses to the load distribution.
NOTE: At this point all UPSs will be in parallel “BYPASS” mode. This mode will allow for full rated
output of the parallel system. UPS will have the “BYPASS” LED illuminated.
7. Press the “MENU” button on UPS 1.
8. Select submenu “CONTROL.”
9. Press “OK”, the LCD displays ‘TURN UPS TO ONLINE.”
10. Press “OK”, the UPS system will stay waiting in “BYPASS” mode.
11. Repeat step 7-10 on UPS 2 and UPS 3.
NOTE: After a few seconds, the “BYPASS” LEDs on UPSs will extinguish and all “ON” LED’s will
illuminate simultaneously, indicating that all parallel UPS inverters are running. The total load is spread
evenly across all UPSs.
Table 16. Sinergy Parallel Kits and Runtimes
Sinergy Parallel KIt Model
No.
kVA
Runtime
half load/full
load
Part No.
Kit Includes
SE122
12
21/9
SE122XAT
SE122XIT
SE122XJT
(2) SE061
SE122
12
84/39
SE122XAT-2
SE122XIT-2
SE122XJT-2
(2) SE061 & (2) SEBP610-2
SE122
12
175/78
SE122XAT-4
SE122XIT-4
SE122XJT-4
(2) SE061 & (4) SEBP610-2
SE162
16
21/6
SE162XAT
SE162XIT
SE162XJT
(2) SE081
SE162
16
73/23
SE162XAT-2
SE162XIT-2
SE162XJT-2
(2) SE081 & (2) SEBP610-2
SE162
16
140/45
SE162XAT-4
SE162XIT-4
SE162XJT-4
(2) SE081 & (4) SEBP610-2
SE202
20
13/5
SE202XAT
SE202XIT
SE202XJT
(2) SE101
