Drive Monitoring With Or Without Encoder - Siemens Sinamics S120 Function Manual

General information about SINAMICS Safety Integrated

2.5 Drive monitoring with or without encoder

2.5 Drive monitoring with or without encoder
If motors without a (safety-capable) encoder are being used, not all Safety Integrated
functions can be used.
Not e
Def 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 2- 1 Overview of Safety Integrated functions
Fu n ctions
Basic Functions Safe Torque Off
Safe Stop 1
Safe Brake Control
Extended Safe Torque Off
Functions
Safe Stop 1
Safe Brake Control
Safe Operating Stop
Safe Stop 2
Safely Limited Speed
Safe Speed Monitor
Safe Direction
Safely Limited Position
Safe referencing
Transferring safe position
values
Safe Brake Test
Safe Acceleration Monitor
Safe Brake Ramp
Safe gearbox stage switch-
over
The use of this safety function without encoder is permitted only for induction motors or synchronous motors of the
1)
SIEMOSYN series.
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 SCOUT tools.
32
Ab br. Wi th Wi thout
e n coder e n coder
STO Yes Yes
SS1 Yes Yes
SBC Yes Yes
STO Yes Yes
1)
SS1 Yes Yes
1)
SBC Yes Yes
1)
SOS Yes No
SS2 Yes No
SLS Yes Yes
1)
SSM Yes Yes
1)
SDI Yes Yes
1)
SLP Yes No
SR Yes No
SP Yes Yes
1)
SBT Yes No
SAM Yes Yes
1)
SBR Yes Yes
1)
– Yes No
Function Manual, (FHS), 07/2016, 6SL3097-4AR00-0BP6
Brief description
Safe torque off
Safe stopping process according to stop
category 1
Safe brake control
Safe torque off
Safe stop according to stop category 1
Safe brake control
Safe monitoring of the standstill position
Safe stop according to stop category 2
Safe monitoring of the maximum speed
Safe monitoring of the minimum speed
Safe monitoring of the direction of motion
Safely limited position
Safe referencing
Transferring safe position values
Safe test of the required holding torque of a
brake
Safe monitoring of drive acceleration
Safe braking ramp
–
Safety Integrated