Direct Connection Of The Holding Brake To Sinamics Devices; Connection Of The Holding Brake To An External Power Supply Via Contactor - Siemens SIMOTICS S-1FG1 Operating Instructions Manual

Description
3.6 Mounting and options
NOTICE
Faulty brake function due to inadmissible wear
Inadmissible wear means that the braking function is no longer guaranteed.
• Comply with the specified EMERGENCY STOP characteristics.
• Avoid repeated brief acceleration of the servo geared motor against a holding brake that is
Principle of operation
The holding brake operates according to the closed-circuit principle. It brakes when the
current is interrupted and holds the servo geared motor.
When power is applied to the brake it opens and the servo geared motor is free to rotate.
In the event of a power failure or an Emergency Stop, the servo geared motor is braked from
its actual speed down to standstill.
Note
Forbidden uses of the holding brake
The holding brake must not be used in hazardous areas/areas subject to firedamp.
Note
It is not possible to subsequently modify servo geared motors with or without holding brake.
Servo geared motors with a holding brake are longer by the length of the holding brake.
Setting up the brake
The rated holding brake voltage is 24 V DC +/- 10 %. Voltages outside this tolerance range can
result in faults.
When setting up machines and systems (jog mode), carefully observe the technical data for
the holding brakes provided in Chapter "Configuration Instructions" of Catalog D41.
3.6.4.2

Direct connection of the holding brake to SINAMICS devices

The holding brake in the servo geared motor is intended for direct connection to the SINAMICS
converter using the MOTION CONNECT power cable with an integrated brake connection cable,
see Chapter "Selecting and connecting the cables (Page 137) "
Since safe electrical isolation from the servo geared motor winding is guaranteed for the
brake cable in the motor and the power cable is designed as an enforced insulation, no
further protection circuits are required in this case.
3.6.4.3

Connection of the holding brake to an external power supply via contactor

You can control the holding brake via an external power supply.
42
still closed. For the drive control and/or the drive enable, consider the response times of the
brakes and relay switching times.
SIMOTICS S-1FG1 servo geared motor
Operating Instructions, 12/2022, A5E47360747B/RS-AC