Limit Input/General-Purpose Input/Control Input Circuit (In1 - In7, +Lim, -Lim, Org) - Contec SMC-8DL-PCI User Manual

3. External Connection
Limit input/general-purpose input/control input circuit
The limit input/general-purpose input/control input circuit on this board is illustrated below.
The signal input is an opto-isolated, current driven input (sink type). To drive the limit input/
general-purpose input/control input block, therefore, an external power supply is required
at +12 - +24 V.
Vcc
Photocoupler
Vcc
Photocoupler
* Input pin is IN1 - IN7, +LIM, -LIM, ORG.
Figure 3.13. Limit input/general-purpose input/control input circuit
38
Board
Plus
Common
Input
Pin
Input
Pin
(IN1 - IN7, +LIM, -LIM, ORG)
External
Device
External
Power Supply
+12 - +24VDC
Swich
Swich
SMC-4DL-PCI, SMC-8DL-PCI