Rockwell Automation 1797-BCNR FLEX Ex Redundant ControlNet Barrier Module - Manual (Page 5)

FLEX Ex Redundant ControlNet Barrier Module 5
Publication 1797-5.35 - July 2004
Mounting the Barrier on a DIN Rail Before Installing Modules
The 1797-BCNR module mounts on a DIN rail.
1. Position the ControlNet Ex barrier module (A) on a 35 x 7.5mm DIN
rail (B) (A-B pt. no. 199-DR1) at a slight angle.
2. Hook the lip on the rear of the barrier (A) onto the top of the DIN
rail (B), and rotate the module onto the rail.
3. Press the barrier module down onto the DIN rail until flush.
4. The locking tab (C) should snap into position and lock the barrier
module to the DIN rail.
5. If the barrier module does not snap into position, use a screwdriver or
similar device to move the locking tab down while pressing the barrier
module flush onto the DIN rail. Release the locking tab to lock the
module in place.
6. If necessary, push up on the locking tab to lock.
7. Make certain that you only connect the ControlNet Ex side of the
1797-BCNR to 1797 ControlNet taps with either a 1797-ACNR15 or
a 1797-TCAP attched.
WARNING
The 1797-BCNR cannot be used in an intrinsically safe
environment after the ControlNet Ex connections have been
exposed to non-intrinsically safe signals.
In
Out
Out
Channel A
Channel B
In
A
B
C
43477
B