Parallel Units Wiring - Tripp-Lite SmartOnline SUT20K Manual Del Propietário

3. Installation and Wiring

3.6.3 Parallel Units Wiring

Note: Prior to wiring, first read 3.6.1 Precautions Prior to Wiring.
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Follow steps ~
2
The UPS system is shipped with the battery cables disconnected. Locate the battery connection cables behind the labeled
connector door in the cabinet. Connect the battery cabinet cables to the wiring terminal block and ensure the UPS system is
properly grounded (refer to Figures 3-6~3-10).
3 Use the provided parallel cable to connect the parallel ports on the parallel units. See Figure 6-1 for parallel port location.
4 Refer to 6. Communication Interfaces to set the parallel switch in the ON or OFF position.
5 7 8
Follow steps ~
WARNING:
1. When UPS systems are paralleled, the length of each unit's input cables/output cables must be equal. This
ensures that the parallel UPS systems can equally share the equipment loads in bypass mode.
2. Only UPS systems with the same capacity, voltage and frequency can be paralleled; otherwise, parallel
functions will fail.
3. Before start-up of parallel units, qualified service personnel should set ID (0, 1, 2 or 3) through the LCD.
Otherwise, UPS systems cannot be started. If the symbol '!' appears after an ID number, it indicates there is a
conflict between ID numbers.
in section 3.6.2 Wiring Procedure.
in section 3.6.2 Wiring Procedure.
AC Input
UPS 1
AC Input
3Ø4W
I/P
UPS 2
AC Input
UPS 4
(Figure 3-12: Parallel Units Wiring Diagram)
UPS Output
Parallel Port
UPS Output
3Ø4W
Parallel Port
Parallel Port
UPS Output
Parallel Port
14
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