User Manual

Rockwell Automation Publication 20P-UM001K-EN-P - July 2014 43
Installation and Wiring Chapter 1
Cable and Wiring
Recommendations
Use the following cable and spacing recommendations for all drives sizes:
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 3 inches (76 mm) apart
• In a cable tray, the two groups of leads are to be 6 inches (152 mm) apart
Minimum Spacing Between Classes - Steel Conduit/Tray
Category Wiring
Class
Signal Definition Signal Example Cable Type 1 2/3/4 5/6 7/8 9/10/11 See Cable
Spacing
Notes, on
page 44
Power 1 AC Power (600V Or
Greater)
2.3kV 3/ph AC Lines Per NEC & Local
Codes
03/9 in.
(76/229 mm)
3/9 in.
(76/229 mm)
3/18 in.
(76/457 mm)
See Note 6 1/2/5
2AC Power (Less Than
600V)
460V 3/ph AC Lines 3/9 in.
(76/229 mm)
03/6 in.
(76/152 mm)
3/12 in.
(76/305 mm)
See Note 6 1/2/5
3 DC Power DC Motor Armature
4 DC Power DC Motor Field
Control 5 115V AC/DC Logic Relay Logic/PLC I/O
Motor Thermostat
3/9 in.
(76/229 mm)
3/6 in.
(76/152 mm)
03/9 in.
(76/229 mm)
See Note 6 1/2/5
115V AC Power Power Supplies,
Instruments
6 24V AC/DC Logic PLC I/O
Signal
(Process)
7 Analog Signals, DC
Supplies
Reference/Feedback
Signal, 5 To 24V DC
Shielded Cable –
Belden 8735,
8737, 8404
3/18 in.
(76/457 mm)
3/12 in.
(76/305 mm)
3/9 in.
(76/229 mm)
01/3 in.
(25/76 mm)
2/3/4/5
Digital (Low Speed) TTL
8 Digital (High Speed) I/O, Encoder, Resolver,
Count Pulse Tach
Shielded Cable –
Belden 9728, 9730
Signal
(Comm.)
9 Serial Communication RS-232 (20-COMM-R),
422 To Terminals/printers
Shielded Cable –
Belden RS-232 –
8735, 8737 RS-
422 – 9729, 9730
See Note 6 1/3 in.
(25/76 mm)
0–
11 Serial Communication
(Greater Than 20k Baud)
PLC Remote I/O, PLC Data
Highway
Twinaxial Cable –
Belden 9463, A-B
1770-CD
Minimum Spacing Between Classes Steel Conduit/Tray
Category
Wiring
Class
Signal Definition Signal Example 1
2/3/4 5/6
Power
2
AC Power (less
than 600V)
460V 3/Ph AC Lines 3/6 in.
(76/152 mm)
Control
6
24V AC/DC Logic PLC I/O 3/6 in.
(76/152 mm)