Siemens SIROTEC Device Manual

Options
8.19 K88, Safe Brake Adapter SBA 230 V AC
Cabinet Modules NEMA
Manual, 04/2014, A5E03586450A
395
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.
NOTICE
Device failure due to connection of a 24 V DC brake
Connection of a 24 V DC brake to option K88 (Safe Brake Adapter 230 V AC) can cause
damage to the Safe Brake Adapter and even failure (closing of the brake is not indicated
via an LED, the fuse can be tripped, the contact service life of the relay is reduced).
• Do not connect a 24 V DC brake to the Safe Brake Adapter 230 V AC.
Note
Maximum cable length of the brake control
The m
aximum permissible cable length of 980 ft (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 th
e device.

Siemens SIROTEC Specifications

General

Brand	Siemens
Model	SIROTEC
Category	DC Drives
Language	English