Wiring Diagram
Original instructions
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Illustration
The following figure shows the wiring diagram of the 140 ATI 030 00.
External Wiring Recommendation
  1. Use shielded TCs. (The user should consider using shielded wire in a noisy environment.)
  2. Shielded types should be connected to the PLC’s ground.
  3. A Shield Bar (STB XSP 3000 and STB XSP 3010/3020) should be used to connect the shielded cable to ground
  4. Connections marked Not Used are not electrically connected within the module. These points are used as a thermal link to ambient air. They are not recommended as electrical tie points as this could affect the accuracy of cold junction compensation.
  5. The 140 CFA 040 00 CableFast block can be used. However it can create a temperature variation up to 35.6 °F (2 °C). For more information, refer to the Modicon Quantum Automation Series Hardware Reference Guide (840 USE 100).
NOTE: When field wiring the I/O module, the maximum wire size that should be used is 1-14 AWG or 2-16 AWG; the minimum size is 20 AWG.
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.
Using Cold Junction Compensation (CJC)
For temperature measurements, the 140 ATI 030 00 provides an internal CJC. However, a remote CJC can be used with the following TC types: J,K and T. The TC must be connected to Channel 1.
NOTE:
Recomendation when using remote CJC:
  • To obtain the best accuracy when using a remote CJC, connect it as close as possible from the 140 ATI 030 00 module.
  • The distance between the external CJC and the module affects the temperature measurement accuracy.
  • The usage of CableFast with a remote CJC is not recommended.
The following diagram shows how to connect a remote Cold Junction Compensation using a temperature compensation on the 140 ATI 030 00:
For more information on the 140 ATI 030 00 please refer to the Modicon Quantum Automation Series Hardware Reference Guide (840 USE 100).