Rockwell Automation T7903 ICS Regent+Plus I/O Termination Assembly (ITA) - Manual (Page 16)

I/O Termination Assembly
1 6
Industrial Control Services
A p p e n d i x B - Single Ended, No Current
Limiting, Field Loop
YTMR790111 (Right Hand Varelco Connector)
YTMR790211 (Left Hand Varelco Connector)
YTMR790311 (Screw Terminal Connector)
The Single Ended, No Current Limiting, Field Loop ITA provides a
method for supplying a common feed/return path to field devices on a
per module basis, as shown below:
The single ended signal is fed from the I/O chassis to the ITA. The ITA
provides a common supply which is tracked out on the ITA to provide
each single ended signal with a feed/return supply path. Each field
loop is capable of carrying 2A. The overall maximum current of the
ITA should not exceed 16A total.
Single ended I/O modules have 16 field circuits and one ITA will be
required for each module.
The connector idents are shown on the legend on the ITA.
The block diagrams below show typical connection of the module to
the field device.