Rockwell Automation 1746-HSCE,D17466.5 High-Speed Counter Module - Manual (Page 58)

Publication 1746-UM006B-EN-P - August 2005
3-14 Installation and Wiring
Single-Ended Wiring
(Discrete Devices) The following diagram shows the sensors operating from a common
power supply. Separate power supplies for each circuit can be used.
The resistor (R1) value depends on the power supply value (VS). The
table below lists the resistor values for typical power supply values.
These resistors must be located at the module end of the cable.
The pull-up resistor (R2) value depends on the power supply value
(VS). The table below lists the resistor values for typical power supply
values. These resistors must be located at the sensor end of the cable.
1 2 3 4
ON
OFF
SW1
A(+)
A(–)
B(+)
B(–)
Z(+)
Z(–)
Module Inputs
Power
Supply
+VDC
COM
R1
proximity sensor
with sourcing output
solid-state
switch
(5V output)
photoelectric sensor with
open collector sinking output
R2
VS
OUT
COM
VS
OUT
COM
VS
OUT
COM
(All switches in OFF position)
VS Value R Value Maximum Output Leakage
+5V dc no resistor needed 100 µA
+12V dc 1800 ohm 1/4W 5% 100 µA
+24V dc 4700 ohm 1/4W 5% 100 µA
VS Value R Value Maximum Output Leakage
+5V dc 150 ohm 1/4W 5% 6.3 mA
+12V dc 1800 ohm 1/4W 5% 1.5 mA
+24V dc 4700 ohm 1/4W 5% 1.2 mA