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20
920-0084C
8/2/2018
TSM17S/Q Hardware Manual
3.3.4 X7/X8 Digital Input
The X7/X8 input are designed for low speed digital input operation between 5 and 24 volts
optically Isolated differential input. They are normally used for end of travel limit switches. The
diagrams below show how to connect the X7/X8 Inputs to various commonly used devices.
5 - 24
volt DC
Power
Supply
Connecting an NPN type Proximity Sensor to an Input
(when prox sensor activates, input goes low)
X7/X8+
X7/X8-
+
-
+
NPN
Proximity
Sensor
-
output
TSM17
5 - 24
volt DC
Power
Supply
Connecting a PNP type Proximity Sensor to an Input
(when prox sensor activates, input goes low)
X7/X8+
X7/X8-
+
-
+
PNP
Proximity
Sensor
-
output
TSM17