Rockwell-automation 2099-BMxx Kinetix 7000 High Power Servo Drive User User Manual download pdf (Page 73)

Rockwell Automation Publication 2099-UM001D-EN-P - December 2012 73

Connect the Kinetix 7000 Drive System Chapter 4

Cable Sizes

In the table below the appropriate VFD shielded cable to use based on 150%

overload capability and 25 °C (77 °F) operating temperature is shown.

For applications above 130 Amps, use thick insulation lead wire, such as RHW-2

or equal. Make sure you thread the four wires (U, V, W, and ground) through a

single, grounded, metal conduit.

Table 30 - 1.5x Rated Continuous Motor Current Cable Size

Conduit

For applications above 130 Amperes, metal conduit is required for cable

distribution. Follow these guidelines:

• Drives are normally mounted in cabinets, and ground connections are

made at a common ground point in the cabinet. If the conduit is

connected to the motor junction box and the drive end is connected to the

ground panel in the cabinet, you do not need any additional conduit

connections.

• Route no more than three sets of motor leads and a ground wire through a

single conduit. This minimizes cross talk that also reduces the effectiveness

of the noise reduction methods described. If more than three drive/motor

connections per conduit are required, use shielded cable. If practical, each

conduit should contain only one set of motor leads.

• You should use a thick insulation lead wire, such as type RHW-2 or equal.

Motor Current Cable Size

AWG

12 A 1.5 16

17 A 2.5 14

21 A 4 12

30 A 6 10

55 A 10 8

65 A 16 6

95 A 25 4

130 A 35 2

1 2 ... 68 69 70 71 72 73 74 75 76 77 78 ... 189 190

No comments

Rockwell-automation 2099-BMxx Kinetix 7000 High Power Servo Drive User User Manual Page 73