Option Modules, Brake Control; Introduction; Brake Relay; Description - Siemens SINAMICS S120 Manual

7.5

Option modules, brake control

7.5.1

Introduction

An option module brake control is required for operating motors with holding brakes.
The option module brake control provides the electrical interface between the CU/PM340
and the brake of a motor. Two versions are available:

1. Brake Relay

2. Safe Brake Relay
This is mounted in the Screening Kit (refer to the Chapter "Screening Kit") or alternatively at
the rear cabinet panel.
7.5.2 Brake Relay
7.5.2.1

Description

The Brake Relay in conjunction with Power Modules, Blocksize format, can be used to
control a motor brake.
Using the Brake Relay, both 24 V DC as well as 1-ph. 240 V AC brakes can be operated.
The integrated relay is controlled from the Control Unit. The electrically isolated NC contact
is connected through a two-pole terminal.
The Brake Relay has the following interfaces:
Table 7-19
Type
Switch contact (NO contact) to control the motor
brake solenoid
Connection for the pre-fabricated (CTRL) to the
Power Module, Blocksize format
The supplied brake relay includes the cable harness for connection with the power module.
AC Drive
Manual, (GH6), 07/2007 Edition, 6SL3097-2AL00-0BP2
Supplementary System Components and Encoder System Integration
Overview of the Brake Relay interfaces
7.5 Option modules, brake control
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