User manual

Detailed descriptions of I/O modules | Digital relay output module UR20-4RO-CO-255
128 1432790000/03/02.2014Manual 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
System
bus
U
SYS
U
IN
U
OUT
1
2
3
4
µC
UR20 4RO-CO-255
BlockdiagramUR20-4RO-CO-255
Deratingcurve