General information about SINAMICS Safety Integrated
3.2 Drive monitoring with or without encoder
Safety Integrated
30 Function Manual, 08/2023, A5E03264275A
3.2 Drive monitoring with or without encoder
If motors without a (safety-capable) encoder are being used, not all Safety Integrated
Functions are available.
inition: "Without encoder"
When "without encoder" is used in this manual, then this always means that either no
encoder or no safety-capable encoder is being used.
In operation without encoder, the actual speed values are calculated from the measured
electrical actual values. Therefore, speed monitoring is also possible during operation without
encoder.
Table 3- 1 Overview of Safety Integrated Functions
Functions Abbr. With
Without
Brief description
Safe stop according to stop category 1
tions
1)
Safe stop according to stop category 1
1)
Safe monitoring of the standstill position
Safe stop according to stop category 2
1)
Safe monitoring of the maximum speed
1)
Safe monitoring of the minimum speed
Safe monitoring of the direction of motion
Safely-Limited Acceleration
Safely limited acceleration
Safe test of the required holding torque of a
brake
Safe Acceleration Monitor
1)
Safe monitoring of drive acceleration
1)
Safe gearbox stage switch-
over
tions
Transferring safe position
values
1)
Transferring safe position values
1)
The use of this safety function without encoder is permitted only for induction motors or synchronous motors of the
SIMOTICS A-1FU (previously: SIEMOSYN).
The configuration of the Safety Integrated Functions and the selection of monitoring with or
without encoder is realized in the Safety screens of the STARTER or Startdrive tools.