Rockwell Automation T7903 ICS Regent+Plus I/O Termination Assembly (ITA) User Manual
Regent + plus, I/o termination assembly (ita)
Regent + Plus
PD 7901
Industrial Control Services
1
I/O Termination Assembly (ITA)
RH/LH Varelco Connector and Screw
Terminal Versions
(T7901, T7902 and T7903)
Issue 1, March, 06
I/O Termination Assemblies (ITAs) are used in conjunction with I/O
modules to enhance the field wiring philosophy of the Regent + Plus
product range. The ITAs provide connector type conversion, analog
conversion, panel break facilities and an ideal point for test signal
injection. The ITAs can provide these facilities for all I/O modules with
the exception of the Thermocouple, RTU, Relay and Isolated Guarded
Output modules, which are wired in a conventional manner.
Features
·
Rapid connection between I/O chassis and customer field
devices
·
Optional current to voltage conversion for active field devices
·
Provides supply and return paths for field devices
·
Right-hand Varelco version - T7901
·
Left-hand Varelco version - T7902
·
Screw terminal version (high voltage) - T7903
·
Provides panel break facilities
·
Uses standard cables
·
Fault tolerant configurable
The ITAs provide rapid connection between I/O chassis and customer
field wiring, using pre-formed cables which are wired on a one to one
basis (ie. module pin 1 to ITA pin 1). A common supply path is
provided, allowing common field/return and analog conversion via
resistors.
Document Outline
- Module Operation
- Application
- Specifications
- Appendix A - Differential, Field Loop
- Appendix B - Single Ended, No Current Limiting, Field Loop
- Appendix C - Single Ended, Current Limiting, Field Loop With Dioded Power Protection (24V)
- Appendix D - Single Ended, Analog, Current Mode
- Appendix E - Single Ended, External Current Limiting
- Appendix F - Differential, Analog Current Mode
- Appendix G - Differential, Field Loop With Dioded Power Protection
- Appendix H - Single Ended, No Current Limiting, Field Loop With Dioded Power Protection