Rockwell Automation 1734-IE4S POINT Guard I/O Safety Modules User Manual - Manual (Page 66)

66 Rockwell Automation Publication 1734-UM013J-EN-P - July 2014
Chapter 4 Install the Module
Safety Analog Input Wiring Examples
Figure 31 - 2-wire Current (4…20 mA) Sensor (SIL2 or SIL 3)
Figure 32 - 3-wire Voltage or Tachometer Sensor (SIL 2)
Follow the Guidelines for Wiring Safety Analog Inputs on page 65 .
V0 V1 V2 V3
I0 I1 I2 I3
COM COM COM COM
S0
FE
S1 S2 S3
SIL2 or SIL 3
2-wire
Sensor
1734-TB Terminal Bases
Signal (I)
+24V
Cable Shield
V0 V1 V2 V3
I0 I1 I2 I3
COM COM COM COM
S0
FE
S1 S2 S3
For analog voltage-output sensors, the signal levels for operation for the application must be outside the signal level when the signal is not
present, for example, when the wire is broken.
See Figure 43 and Figure 44 on page 72 for tachometer wiring detail.
SIL 2
3-wire
Sensor
1734-TB Terminal Bases
Signal (V)
+24V
Cable Shield
Signal Return