Specifications

130BA389.10

Illustration 6.11 Mains Connection Enclosure Types C1 and C2

(IP21/NEMA Type 1 and IP55/66/NEMA Type 12).

91 92 93

96 97 98

88 89

81 82

130BA718.10

Illustration 6.12 Mains Connection Enclosure Type C3 (IP20).

DC-

DC+

R-

R+

130BA719.10

Illustration 6.13 Mains Connection Enclosure Type C4 (IP20).

Usually the power cables for mains are unscreened cables.

6.1.4

Motor Connection

NOTICE

To comply with EMC emission specifications, screened/

armoured cables are required. For more information, see

chapter 2.9.2 EMC Test Results.

See chapter 9 General Specifications and Troubleshooting for

correct dimensioning of motor cable cross-section and

length.

Screening of cables:

Avoid installation with twisted screen ends (pigtails). They

spoil the screening effect at higher frequencies. If it is

necessary to break the screen to install a motor isolator or

motor contactor, the screen must be continued at the

lowest possible HF impedance.

Connect the motor cable screen to both the decoupling

plate of the frequency converter and to the metal housing

of the motor.

Make the screen connections with the largest possible

surface area (cable clamp). This is done by using the

supplied installation devices in the frequency converter.

If it is necessary to split the screen to install a motor

isolator or motor relay, continue the screen with the

lowest possible HF impedance.

Electrical Installation

Design Guide