Rockwell Automation 7000A PowerFlex Medium Voltage Drive (A-Frame) - Classic Control - Manual (Page 84)

2-44 Drive Installation
7000A-UM150F-EN-P – June 2013 7000 “A” Frame
The following table identifies general wire categories that will be encountered when installing the
PowerFlex 7000 “A” Frame Drive. Each category has an associated wire group number that is used in the
following sections to identify the wire to be used. Application and signal examples along with the
recommended type of cable for each group are provided. A matrix providing the recommended minimum
spacing between different wire groups run in the same tray or separate conduit is also provided.
For Tray: Recommended spacing between different wire groups in the same tray.
For Conduit: Recommended spacing for wire groups in separate conduit – mm (inches).
Wire
Category
Wire
Group
Application
Signal
Example
Recommended
Cable
Wire
Group
Power
1
Power
2
Control
3
Control
4
Signal
5
Signal
6
Power
1
AC Power
(> 600V AC)
2.3 kV, 3 
AC Lines
Per IEC / NEC
Local Codes and
Application
Requirements
In
Tray
228.6
(9.00)
228.6
(9.00)
228.6
(9.00)
228.6
(9.00)
Between
Conduit
76.2 (3.00)
Between Conduit
2
AC Power
(TO 600V AC)
480V, 3 
Per IEC / NEC
Local Codes and
Application
Requirements
In
Tray
228.6
(9.00)
228.6
(9.00)
152.4
(6.00)
152.4
(6.00)
Between
Conduit
76.2 (3.00)
Between Conduit
Control
3
115V AC
or 115V DC
Logic
Relay Logic
PLC I/O
Per IEC / NEC
Local Codes and
Application
Requirements
In
Tray
228.6
(9.00)
152.4
(6.00)
228.6
(9.00)
152.4
(6.00)
115V AC
Power
Power Supplies
Instruments
Between
Conduit
76.2 (3.00)
Between Conduit
4
24V AC
or 24V DC
Logic
PLC I/O
Per IEC / NEC
Local Codes and
Application
Requirements
In
Tray
228.6
(9.00)
152.4
(6.00)
152.4
(6.00)
228.6
(9.00)
Between
Conduit
76.2 (3.00)
Between Conduit
Signal
5
Analog Signals
DC Supplies
5-24V DC
Supplies
Belden 8760
Belden 8770
Belden 9460
Digital
(Low Speed)
Power Supplies
TTL Logic Level
6
Digital
(High Speed)
Pulse Train
Input
Tachometer
PLC
Communications
Belden 8760
Belden 9460
Belden 9463
All signal wiring must be run in separate steel conduit.
A wire tray is not suitable.
The minimum spacing between conduits containing different
wire groups is 76.2 mm (3 inches).
Belden 8760 - 18 AWG, twisted pair, shielded
Belden 8770 - 18 AWG, 3-conductor, shielded
Belden 9460 - 18 AWG, twisted pair, shielded
Belden 9463 - 24 AWG, twisted pair, shielded
Note 1: Steel conduit or cable tray may be used for all PowerFlex 7000 “A” Frame Drive power or control wiring, and steel conduit is required for all PowerFlex
7000 “A” Frame Drive signal wiring. All input and output power wiring, control wiring or conduit should be brought through the drive conduit entry holes of the
enclosure. Use appropriate connectors to maintain the environmental rating of the enclosure. The steel conduit is REQUIRED for all control and signal circuits,
when the drive is installed in European Union countries. The connection of the conduit to the enclosure shall be on full 360 degree and the ground bond at the
junction shall be less than 0.1 ohms. In EU countries this is a usual practice to install the control and signal wiring.
Note 2: Spacing between wire groups is the recommended minimum for parallel runs of 61 m (200 feet) or less.
Note 3: The customer is responsible for the grounding of shields. On drives shipped after November 28/02, the shields are removed from the drive boards. On
drives shipped prior to November 28/02, all shields are connected at the drive end and these connections must be removed before grounding the shield at the
customer end of the cable. Shields for cables from one enclosure to another must be grounded only at the source end cabinet. If splicing of shielded cables is
required, the shield must remain continuous and insulated from ground.
Note 4: AC and DC circuits must be run in separate conduits or trays.
Note 5: Voltage drop in motor leads may adversely affect motor starting and running performance. Installation and application requirements may dictate that
larger wire sizes than indicated in IEC / NEC guidelines are used.
Table 2.A – Wire Group Numbers