Rockwell Automation 1797-TCAP ControlNet Ex Tap Dummy Load Installation User Manual

Page 5

ControlNet Ex Tap Terminator Installation Instructions

1797-5.30 - September 1999

UL, cUL I/O Entity Parameters and Requirements

The entity concept allows interconnection of intrinsically safe

apparatus with associated apparatus not specifically examined in
combination as a system when the approved values of V

and I

or V

and

of the associated apparatus are less than or equal to V

max

and I

max

of the

intrinsically safe apparatus and the approved values of C

and L

of the

associated apparatus are greater than C

+ C

cable

and L

+ L

cable

respectively

for the intrinsically safe apparatus.

Wiring methods must be in accordance with the National Electric

Code, ANSI/NFPA 70, Article 504 and 505 or the Canadian Electric Code
CSA C22.1, Part 1, Appendix F. For additional information refer to ANSI/
ISA RP12.6.

WARNING: Substitution of components may impair intrinsic safety.

AVERTISSEMENT: La substitution de composant peut compromettre la
securite intrinseque.

If fiber optic cable is provided with a metal shield, it must be connected

to a dedicated intrinsic safety ground in the non-hazardous location and
tied back in the hazardous location or be connected to a ground in the
hazardous location and tied back in the non-hazardous location.

The glass fiber must have a minimum diameter of 6

Table 1

Terminals

(V)

(mA)

Groups

(

Male Bus
Connector

5.8

400

A-G

3.0