Cable and wiring recommendations – Rockwell Automation 1336E IMPACT Adjustable Frequency AC Drive User Manual V 1-4.XX User Manual
Page 331
Specifications
A-5
Cable and Wiring
Recommendations
Example
Spacing relationship between 480V AC incoming power leads and
24V DC logic leads.
•
480V AC leads are class 2; 24V DC leads are class 6.
•
For separate steel conduits, the conduits must be 76 mm
(3 inches) apart.
•
In a cable tray, the two groups of leads are to be 152 mm
(6 inches) apart
Spacing Notes
1. Both outgoing and return current carrying conductors are to be
pulled in the same conduit or laid adjacent in tray.
2. Cables of the following classes can be grouped together.
–
Class 1: equal to or above 601 volts
–
Classes 2, 3, and 4 may have their respective circuits pulled in
the same conduit or layered in the same tray.
–
Classes 5 and 6 may have their respective circuits pulled in
the same conduit or layered in the same tray.
Note: Bundle may not exceed conditions of NEC310.
Minimum Spacing in Inches Between
Classes — Steel Conduit/Tray
Category
Wiring
Class
Signal Definition
Signal Examples
Cable Type
1
2/3/4
5/6
7/8
9/10/11
Power
1
AC power (600V or
greater)
2.3kV 3/Ph AC lines
per NEC & local codes
0
3/9
3/9
3/18
Note 6
2
AC power (less than
600V)
460V 3/Ph AC lines
per NEC & local codes
3/9
0
3/6
3/12
Note 6
3
AC power
AC motor
per NEC & local codes
Control
5
115V AC/DC logic
Relay logic/PLC I/O
motor thermostat
per NEC & local codes
3/9
3/6
0
3/9
Note 6
115V AC power
Power supplies,
instruments
6
24V AC/DC logic
PLC I/O
per NEC & local codes
Signal
(Process)
7
Analog signals, DC
supplies
Reference/feedback
signal, 5 to 24V DC
Shielded cable — Belden
8735, 8737, 8404
3/18
3/12
3/9
0
1/3
Digital (low speed)
TTL
8
Digital (high speed)
I/O, encoder,
counter pulse tack
Shielded cable — Belden
9728, 9730
Signal
(Comm)
9
Serial
communications
RS-232, 422 to
terminals and
printers
Shielded cable — Belden
RS-232 — 8735, 8737
RS-422 — 9729, 9730
Note 6
1/3
0
11
Serial
communications
(greater than 20k
baud)
PLC Remote I/O,
PLC Data Highway
Twinaxial Cable —
A – B 1770 CD