Automation Function; Description Of The Function Example - Siemens SINAMICS S120 Manual

SINAMICS S120 Fail-Safe Drives
2

Automation function

2.1

Description of the function example

The following safety functions according to IEC 61800-5-2 have been integrated into
SINAMICS S120 drives:
Name
STO Safe Torque Off
SBC Safe Brake Control
SS1 Safe Stop 1
SS2 Safe Stop 2
SOS Safe Operating Stop
SLS Safely-Limited Speed
SSM Safe Speed Monitor
The control of these extended safety functions can be realized using
PROFIsafe with PROFIBUS and also using a TM54F terminal expansion
module.
I DT Safety Integrated
Function
– The torque-generating power feed to the motor is
– Restart is interlocked using a restart/power-on
– SBC is only used when there is a motor brake; the
– SBC always responds in conjunction with STO or
– The drive is quickly stopped along the OFF3 ramp
– After a delay time has expired or the shutdown
– The drive is quickly stopped along the OFF3 ramp
– After a delay time has expired or the shutdown
– This function is used to safely monitor the stand-
– The drive speed is safely monitored
– Parameterizable shutdown response when the
– Safety-relevant display when a speed limit is
Page 5/43
Description
disconnected in a safety-relevant fashion
inhibit.
(Category 0 stop function acc. to EN 60204-1)
motor brake is connected to the power connector
via the outputs.
when internal safety monitoring functions respond
with safety-relevant pulse cancellation.
– and is monitored in a safety-relevant fashion at
the same time
speed is reached, a transition is made to STO
(Category 1 stop function acc., to EN 60204-1)
– and is monitored in a safety-relevant fashion at
the same time
speed is reached, a transition is made to SOS;
the drive remains in closed-loop control
(Category 2 stop function acc., to EN 60204-1)
still position of a drive. The drive remains in
closed-loop control.
limit value is violated
fallen below (n < nx)
Entry ID: 28424136
MC-FE-I-005-V11-EN