User manual

6 DetaileddescriptionsofI/Omodules| Digital relay output module UR20-4RO-CO-255
222 1432790000/08/12.2015Manual u-remote
4RO-CO
Status LED module
Green: Communication on system bus
Red: No communication on system bus or
diagnostic message displayed
1.1 Yellow: Output0 active
2.1 Yellow: Output1 active
3.1 Yellow: Output2 active
4.1 Yellow: Output3 active
LEDindicatorsUR20-4RO-CO-255,errormessagesseeChapter13
NC 0
COM 0
COM 0
NO 0
NC 1
COM 1
COM 1
NO 1
NC 2
COM 2
COM 2
NO 2
NC 3
COM 3
COM 3
NO 3
NC 0
COM 0
COM 0
NO 0
NC 1
COM 1
COM 1
NO 1
NC 2
COM 2
COM 2
NO 2
NC 3
COM 3
COM 3
NO 3
System
bus
U
SYS
U
IN
U
OUT
1
2
3
4
µC
UR20 4RO-CO-255
BlockdiagramUR20-4RO-CO-255
Switching current [A]
Switching voltage [V DC]
Derating curve: Maximum Switching voltage with resitive load