Wiring Diagram
Original instructions
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Precautions
It is recommended to use a process power supply which does not recover automatically after a disjunction. Use for instance 24VDC 10A ABL8 RPS24100 in manual mode.
CAUTION
OVERCURRENT TO THE INPUTS
Use fast acting fuses to protect the electronic components of the module from overcurrent. Improper fuse selection could result to damage to the module.
Failure to follow these instructions can result in injury or equipment damage.
Illustration
The following figure shows the wiring diagram for the 140 SDI 953 00S module. 
power supply:
24 VDC 
fuse:
1 A fast blow fuse 
pull-up resistor (in sensor example):
15 kOhms
NOTE: There is only one group of 16 inputs. All common 24 V are internally connected and all common 0 V are also internally connected. The two pins of a same input (e. g: pin 1 and 2 for input 1) are internally connected too so that you can use either the right pin or the left one.
NOTE: The tightening torque must be between 0.5 Nm and 0.8 Nm.
NOTICE
DESTRUCTION OF ADAPTER
  • Before tightening the locknut to the torque 0.50...0.80 Nm, be sure to properly position the right-angle F adapter connector.
  • During tightening, be sure to maintain the connector securely.
  • Do not tighten the right-angle F adapter beyond the specified torque.
Failure to follow these instructions can result in equipment damage.
Understanding and Using Cut Wire Detection
If the electrical current between the input and the sensor is more than 1 mA, the wire is detected as not cut. If this current is less than 1 mA, the wire is detected as broken and the corresponding input’s red LED is lit.
If you install dry contact sensors, the corresponding input’s red LED will be lit whenever the contact is open and the current will be at 0 mA. To solve this and use cut wire detection properly, Schneider Electric recommends installing a pull-up resistor on the sensors so that the minimum current of 1 mA will be reached. You can use a 15 kohms pull-up resistor or work out the value you need. See the sensor example in the illustration above.