K88, Safe Brake Adapter Sba 230 V Ac - Siemens SINAMICS S120 Manual

8.19

K88, Safe Brake Adapter SBA 230 V AC

Availability of option
This option is available for the following S120 Cabinet Modules:
● Motor Modules in chassis format
Description
The Safe Brake Control (SBC) is a safety function, that is used in safety-related applications,
e.g. in presses or in rolling mills. In the current-free state, the brake acts on the motor of the
drive using spring force. The brake is released when current flows through it (=low active).
The maximum brake current is 2 A.
The Safe Brake Adapter 230 V AC is installed in the cabinet unit in the factory. An infeed is
connected to terminal -X12 on the Safe Brake Adapter to provide the necessary power. For
control, a connection is established between the Safe Brake Adapter and the Control
Interface Module using a cable harness installed in the factory.
For controlling the brake, a connection must be established on site between terminal -X14 on
the Safe Brake Adapter and the rectifier of the brake. It is not permissible that AC brakes are
directly controlled.
Damage to the device when connecting a 24 V DC brake
If, on the plant site, a 24 V DC brake is connected to option K88, Safe Brake Adapter 230 V
AC, then this can damage the Safe Brake Adapter. This can result in the following
undesirable effects:
 Closing the brake is not displayed on the LEDS.
 The fuse is ruptured.
 The contact service life of the relay is reduced.
Maximum cable length of the brake control
The maximum permissible cable length of 300 m between the Safe Brake Adapter 230 V
AC and the brake must be observed. To accurately calculate the maximum cable length,
see the SINAMICS Low Voltage Engineering Manual on the customer DVD supplied with
the device.
Cabinet Modules
Manual, 03/2013, A5E03263538A
WARNING
WARNING
8.19 K88, Safe Brake Adapter SBA 230 V AC
Options
413