Applied Motion TSM17C-1CG - Manual (Page 17)

17
Rev. A
920-0085
TSM17C Hardware Manual
3.3.3 X3/X4/X5/X6 Digital Input
X3/X4/X5/X6 input are optically Isolated Single-ended input. They can be used with sourcing or
sinking signals, 5 to 24 volts. This allows connection to PLCs, sensors, relays and mechanical
switches. Because the input circuits are isolated, they require a source of power. If you are
connecting to a PLC, you should be able to get power from the PLC power supply. If you are using
relays or mechanical switches, you will need a 5-24 V power supply.
What is COM?
“Common” is an electronics term for an electrical connection to a common voltage. Sometimes
“common” means the same thing as “ground”, but not always. In the case of the TSM17 drives, if
you are using sourcing (PNP) input signals, then you will want to connect COM to ground (power
supply -). If you are using sinking (NPN) signals, then COM must connect to power supply +.
Note: If current is flowing into or out of an input, the logic state of that input is low or closed. If no
current is flowing, or the input is not connected, the logic state is high or open.
The diagrams below show how to connect X3/X4/X5/X6 input to various commonly used devices.
5-24VDC
0VDC
XCOM
X3
X4
X5
X6
User Control Drives
5-24VDC
XCOM
X3
X4
Drives
0VDC
+
-
NPN
Sensor
5-24VDC
XCOM
X3
Drives
+
-
PNP
Sensor
0VDC