Motors Without Drive-Cliq Interface; Connecting To A Converter - Siemens 1FK7 Series Operating Instructions Manual

Connecting
6.1 Electrical connection
6.1.7

Motors without DRIVE-CLiQ interface

If a motor is not equipped with a DRIVE-CLiQ interface, the speed encoder and temperature
sensor are connected via a signal connector.
Motors without DRIVE-CLiQ require a Sensor Module Cabinet (SMC) for operation with a
SINAMICS S120 drive system. The motor is connected to the SMC via a signal line. The
SMC is connected to the motor via a DRIVE-CLiQ cable (MOTION-CONNECT).
Figure 6-6
6.1.8

Connecting to a converter

Selecting and connecting the cable
To connect the motor to a converter, use MOTION-CONNECT cables or shielded connecting
cables. The protective braided shield of the cable must made up of as many strands as
possible and have good electrical conductivity. Braided shields made of copper or aluminum
are very suitable.
The shield must be connected at both ends to the motor and the converter; unshielded cable
ends must be kept as short as possible.
In order to ensure good discharge of high-frequency currents, provide a 360° contact through
a large surface area at the converter.
36
Encoder connection without DRIVE-CLiQ
Synchronous Motors 1FK7
Operating Instructions, 03/2011, 610.40700.40c