Safe Stop 1 (Ss1, Time-Controlled) - Siemens SINAMICS S210 Operating Instructions Manual
Servo drive system, converter,
servomotor
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Also See for SINAMICS S210:
- Operating instructions manual (769 pages) ,
- Operating instructions manual (6 pages)
Table of Contents
Safety functions integrated in the drive
4.1 Basic Functions
4.1.2
Safe Stop 1 (SS1, time-controlled)
Overview
v
Functional features
The Safety Integrated Basic Function "Safe Stop 1" is available in the following versions:
● SS1 with OFF3 (SS1-t according to IEC 61800-5-2)
● SS1 with external stop (SS1E-t)
Set the SS1 response for Safety commissioning in the "Parameterization" step.
Applications
SS1 can be applied in the following cases:
● The load torque cannot reduce the motor to a standstill through friction within a sufficiently
short time.
● Coasting down of the drive (STO) will pose risks to safety.
SS1 with OFF3 (SS1-t)
When SS1-t is selected, the motor speed is reduced along the OFF3 ramp for the duration of
the selected delay time. After the delay time expires, the drive activates the STO function
(independent of the actual speed).
Note
Braking at the OFF3 ramp is not monitored!
80
t
The "Safe Stop 1" function (SS1, time-control‐
led) causes a drive-autonomous deceleration
of the motor and initiates the "Safe Torque Off"
(STO) function after a predefined time interval
has elapsed. This function corresponds to stop
category 1 to EN 60204‑1.
t
SINAMICS S210 servo drive system
Operating Instructions, 01/2019, A5E41702836B AC
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