Rockwell Automation 1797-IBN16 FLEX Ex NAMUR Input Module - Manual (Page 8)

8 FLEX Ex NAMUR Input Module
Publication 1797-5.7 - March 2010
Wiring to a 1797-TB3 or -TB3S Terminal Base Unit
Connect wiring to the 1797-TB3 or 1797-TB3S terminal base unit as shown
below.
1. Connect the individual input wiring to (+) terminals (0, 2, 4, 6, 8, 10,
12, 14) on the 0 to 15 row (A) and on the 16 to 33 row (B) (terminals
17, 19, 21, 23, 25, 27, 29, 31)as indicated in the table below.
2. Connect the associated input to the corresponding (-) terminal (1, 3,
5, 7, 9, 11, 13, 15) on the 0 to 15 row (A), and on the 16 to 33 row (B)
(terminals 18, 20, 22, 24, 26, 28, 30, 32) for each input as indicated in
the table below.
3. Connect +V dc power to terminal 34 on the 34 to 51 row (C).
4. Connect -V to terminal 35 on the 34 to 51 row (C).
WARNING
Make certain that you power this module with an intrinsically safe power
supply. Do not exceed the values listed in the specifications for this module.
If you connect or disconnect wiring while the field-side power is on, an
electrical arc can occur. This could cause an explosion in hazardous location
installations. Be sure that power is removed or the area is nonhazardous
before proceeding.
41504
Row A
Row B
Row C
+ + + + - - - -
ch0 ch1 ch2 ch3
+V -V
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
No connections allowed to terminals 36 or 49.
34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
+ - + - + - + -
ch7 ch6 ch5 ch4
+ - + - + - + - + - + - + - + -
ch8 ch9 ch10 ch11 ch15 ch14 ch13 ch12
+V -V