User manual

6 DetaileddescriptionsofI/Omodules | Digital output module UR20-4RO-SSR-255
217Manual u-remote1432790000/08/12.2015
6.27 Digital output module UR20-4RO-SSR-255
DigitaloutputmoduleUR20-4RO-SSR-255(OrderNo.1315540000)
The digital output module UR20-4RO-SSR-255 uses four
semiconductor switches to control up to 4 actuators, each
with a maximum of 1A at 255V AC. The switching charac-
teristics of the semiconductor switch have it as being closed
when the voltage crosses zero and open when the current
crosses zero. Each connector features a potential-free NO
contact (Normally Open). A status LED is assigned to each
channel.
For the protection against extreme disturbance level use
surge protection terminals with varistor (see connec-
tion diagram 2), e.g. VSSC6MOV240 V AC/DC, order
no.1064630000.
≤ 277 V AC
≤ 277 V AC
≤ 277 V AC
≤ 277 V AC
1
14
25
2
COM 0
COM 0
NO O
NO O
COM 1
COM 1
NO 1
NO 1
COM 2
COM 2
NO 2
NO 2
COM 3
COM 3
NO 3
NO 3
N
FE
L
COM 0
COM 0
NO O
NO O
COM 1
COM 1
NO 1
NO 1
COM 2
COM 2
NO 2
NO 2
COM 3
COM 3
NO 3
NO 3
1
2
3
4
2
1
3
4
1
2
3
4
2
4
3
1
2
4
3
1
4RO·SSR
1
2
3
4
2
1
3
4
1
2
3
4
2
4
3
1
2
4
3
1
4RO·SSR
Connection diagram UR20-4RO-SSR-255