Weidmuller UR20-4DI-4DO-PN-FSOE Manual page 60

5 Detailed descriptions of safe modules | Safe power-feed module UR20-PF-O-2DI-SIL
Module status LED
Green: Communication on system bus
2DI-SIL
1.1 Yellow: Safety circuit 0 OK
2.1 Yellow: Safety circuit 1 OK
4.2 Yellow: 24 V Safe output active
4.3 Green: Feed-in voltage in valid range
LED indicators UR20-PF-O-2DI-SIL, error messages see Chapter 7
System
bus
U
SYS
U
IN
Safety
24 V DC Safe
U
GND
OUT
Block diagram UR20-PF-O-2DI-SIL (see also sample design in chapter 4.1)
60
µC
DC
DC
u-remote IP20 modules for functional safety manual
Starting up a safe power-feed module
Please proceed as follows to start-up a UR20-PF-O-2DI-SIL
module:
▶ Connect the provided safety device to S11 to S42 and
release the device (unlock).
▶ Connect the 24 V DC voltage supply to 4.3 and 4.4 of the
module.
▶ Switch on the u-remote station.
▶ Operate the manual start.
▶ Operate the manual start once more for each cascaded
UR20-PF-O-X-SIL-Modul.
µC
µC
S 11
1 S 12
S 21
S 22
Type 3
S 31
S 32
2
S 41
S 42
Man Start 1
Man Start 2
3
Autostart 1
Autostart 2
24 V Safe
4
24 V
GND
1484600000/04/06.2017