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RACK TOWER ONLINE UPS
4.011.2017
RTS-ON-user-manual_ENG-R1
4
●The output cables of each UPS are recommended to connect together on a common terminal block, then output
to the load.
●Each UPS should be equipped individual battery pack.
●Wiring installation for parallel UPS system please refer to the wiring diagrams are given below, switches of 6KVA
should withstand more than 40A/250VAC, and switches of 10KVA should withstand more than 63A/250VAC.
●Output wiring length requirements: when the distance between the load and each UPS is less than 20 meters, the
length difference of cables to the load should be less than 20%; when the distance between the load and each
UPS is more than 20 meters, the length difference of cables to the load should be less than 10%.
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Installation procedure:
①
Install parallel wires. Two UPS to form an UPS parallel system, in order to ensure the reliability of the parallel
system, there is only one way to wire two UPS, use two parallel wires to connect two UPS like the diagram showing
below, connection looks like a circle. If three or more than three UPS are needed, the connection is similar, you can
refer to the diagram as below. How many UPS unit, how many parallel wires you need.
O
U
T
PUT
L
N
I
NP
UT
L
N
O
U
T
PUT
L
N
I
NP
UT
L
N
O
U
T
PUT
L
N
I
NP
UT
L
N
O
U
T
PUT
L
N
I
NP
UT
L
N
O
U
T
PUT
L
N
I
NP
UT
L
N
Parallel system of two UPS wiring Parallel system of three UPS wiring
Attention
: For three UPS parallel system or more than three unites system type, please remove the short pin
CN3 on the parallel card as following pictures, Only keep the first unit and the last unit short pin(CN3) connected
and remove the rest ones. Open the UPS cover, find the parallel card, it’s installed on the rear panel. Take off the
short pin CN3, then screw the cover back. It’s advisable to contact to local dealer to operate, if you have to operate
by yourself, please be sure that you
have
cut off all the electrical connection, be careful the electric shocks from the
UPS inside.