Motor-Side Power Components; Blocksize; Motor Reactors; Description - Siemens S120 Manual

Motor-side power components

6.1

Blocksize

6.1.1

Motor reactors

6.1.1.1

Description

Motor reactors reduce the voltage stress on the motor windings by reducing the voltage
gradients at the motor terminals that occur when motors are fed from drive converters. At the
same time, the capacitive re-charging currents that additionally load the output of the Power
Module when longer motor cables are used are simultaneously reduced.
The motor reactors for Power Modules 380 V to 480 V 3 AC are suitable for a pulse
frequency of 4 kHz. Higher pulse frequencies are not permissible.
6.1.1.2

Safety instructions for motor reactors

Danger to life if the fundamental safety instructions and residual risks are not observed
The non-observance of the fundamental safety instructions and residual risks stated in
Chapter 1 can result in accidents with severe injuries or death.
• Observe the fundamental safety instructions.
• Consider the residual risks for the risk evaluation.
Danger to life due to electric shock in the event of missing touch protection
Death or serious injury can result when live parts are touched.
• For the motor reactors, use touch protection according to IPXXA or corresponding to the
AC Drive
Manual, (GH6), 04/2014, 6SL3097-4AL00-0BP4
WARNING
DANGER
local installation regulations.
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