Rockwell Automation 1747-ACNR15 ControlNet Adapter Module User Manual - Manual (Page 99)

Publication 1747-UM003A-EN-P
Understanding Your SLC 500/1746 Control System B-7
The enclosure should be equipped with a disconnect device. To calculate the
heat dissipation of your controller, Refer to Calculating Heat Dissipation for
Your Control System on page B-34.
Spacing Considerations
Up to three chassis can be connected (for a maximum of 30 I/O slots). Follow
the recommended minimum spacing shown below to allow for convection cooling
within the enclosure.
IMPORTANT
Be careful of metal chips when drilling mounting holes for
the chassis. Do not drill holes above a mounted control
system.
(1)
(2)
(3)
(4)
(3)
(2)
(1)
(1)
(2) (2)
(3)
(3)
Recommended Spacing:
1.
15.3 to 20 cm (6 to 8 in.) when using the 1746-C9 cable.
2. Greater than 10.2 cm (4 in.).
3. Greater than 15.3 cm (6 in.).
4. 7.7 to 10.2 cm (3 to 4 in.) when using the 1746-C7 cable.
IMPORTANT
When making a vertical connection between two A13 chassis with
a 1746-C9 cable, you must limit the space to 15.3 cm (6 in.) for
the C-9 cable to reach from chassis to chassis.
1746-C9 Cable
1746-C7 Cable
1746-C9 Cable
1746-C9 Cable