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FLEX Ex is a trademark of Rockwell Automation.

 1797-5.2 - September 1999

Installation Instructions

FLEX Ex Spring Clamp Terminal Base

(Cat. No. 1797-TB3S) 

You will need to rotate the keyswitch (4) to the correct position depending 
on the module. Refer to the module’s installation instructions for more 
information. Do not change the position of the keyswitch after wiring 
the terminal base unit.

Component Identification

1

Female flexbus connector

2

Terminal base unit

3

Male flexbus connector

4

Keyswitch - Set to the position required for the installed module

5

Mounting holes for panel mounting

6, 7, 8

Input/output terminal strips for connecting input/output wiring, -V, 
+V connections, chassis grounds

9

Locking tab

10

Module locking latch

11

Cover plug for male flexbus connector

12

96 pin female I/O connector

1

5

6

7

8

9

2

11

3

4

10

41253

Only remove this cover plug if 
connecting another terminal 
base unit.

12

Allen-Bradley

Summary of Contents for 1797-TB3S

Page 1: ...er wiring the terminal base unit Component Identification 1 Female flexbus connector 2 Terminal base unit 3 Male flexbus connector 4 Keyswitch Set to the position required for the installed module 5 M...

Page 2: ...n be cut out and posted is included in this installation instruction European Community Directive Compliance If this product has the CE mark it is approved for installation within the European Communi...

Page 3: ...e followed The terminals in this terminal base unit may be electrically connected to each other by the insertion of FLEX Ex I O modules See the module installation instructions to determine this Descr...

Page 4: ...supply Do not exceed the values listed in the specifications for this terminal base unit Do not use the unused terminals on this terminal base unit Using these terminals as supporting terminals can re...

Page 5: ...base over the 35 x 7 5mm DIN rail A A B pt no 199 DR1 ATTENTION Do not force the terminal base into the adjacent modules Forcing the units together can bend or break the hook and allow the units to s...

Page 6: ...terminal base is in place Wiring 1 Make wiring connections as described in the installation instructions included with the specific module that mounts on your terminal base unit 2 Connect V and V fro...

Page 7: ...intended operation of your system Daisy chaining 41110 V V Wiring when total module current power is less than 8 5W Combination Wiring when total module current power is greater than 8 5W 41111 V V 8...

Page 8: ...unit will void the warranty and IS certification If repair is necessary return this module to the manufacturer About the Mounting Kit Use the optional 1794 NM1 mounting kit to mount your system on a p...

Page 9: ...d by inserted module Weight 200g approximately Dimensions with module installed in base Inches Millimeters 3 7H x 3 7W x 2 7D 94H x 94W x 69D Environmental Conditions Operational Temperature Storage T...

Page 10: ...5 5 2 3 58 5 1 4 35 5 1 6 40 5 61 15 6 3 8 Cable length approximately 11 5 292 1 or 35 5 901 0 from upper connector length depends upon cable 1ft 0 3m or ATTENTION Be careful of metal chips when drill...

Page 11: ...amp Terminal Base 11 1797 5 2 September 1999 Important For detailed certification information refer to the FLEX Ex System Certification Reference Manual publication 1797 6 5 6 Attention Avoid electros...

Page 12: ...Publication 1797 5 2 September 1999 PN 957208 15 Supersedes Publication 1797 5 2 September 1998 1999 Rockwell International All Rights Reserved Printed in USA...

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