Drive Monitoring With Or Without Encoder - Siemens Sinamics S110 Function Manual

Safety Integrated Functions
8.2 General information about SINAMICS Safety Integrated
8.2.3

Drive monitoring with or without encoder

If motors without an encoder are being used, not all Safety Integrated functions can be used.
In operation without encoder the speed actual values are calculated from the measured
electrical actual values.
As a consequence, speed monitoring down to a speed of 0 rpm is also possible for operation
without an encoder.
Table 8- 2
Functions
Extended
Functions
The configuration of the Safety Integrated functions and the selection of monitoring with or
without encoder takes place in the Safety screens of the STARTER or SCOUT tools.
Monitoring with an encoder
The Safety Integrated functions with encoder are configured using p9506 = p9306 = 0 in the
expert list (factory setting) or by selecting "with encoder" in the Safety screen form.
The Safe Acceleration Monitor (SAM) recognizes if the drive accelerates beyond the
tolerance defined in p9348/p9548 during the ramp down phase, and generates a STOP A.
The monitoring function is activated for SS1 (or STOP B) and SS2 (or STOP C) and is
deactivated after the speed drops below the value set in p9368/p9568.
You can find more detailed information on the Safe Acceleration Monitor later on in this
manual.
336
Overview of Safety Integrated functions
Functions
Basic Safe Torque Off
Safe Stop 1
Safe Brake
Control
Safe Torque Off
Safe Stop 1
Safe Brake
Control
Safe Stop 2
Safe Operating
Stop
Safely Limited
Speed
Safe Speed
Monitor
Safe Acceleration
Monitor
Safe Brake Ramp
Safe Direction
Abbreviation With
encoder
STO Yes
SS1 Yes
SBC Yes
STO Yes
SS1 Yes
SBC Yes
SS2 Yes
SOS Yes
SLS Yes
SSM Yes
SAM Yes
SBR No
SDI Yes
Function Manual, 01/2011, 6SL3097-4AB10-0BP3
Without Brief description
encode
r
Yes Safe torque off
Yes Safe stopping process in
accordance with stop
category 1
Yes Safe brake control
Yes Safe torque off
Yes Safe stop in accordance with
stop category 1
Yes Safe brake control
No Safe stop in accordance with
stop category 2
No Safe monitoring of the
standstill position
Yes Safe monitoring of the
maximum speed
No Safe monitoring of the
minimum speed
No Safe monitoring of drive
acceleration
Yes Safe brake ramp
Yes Safe monitoring of the
direction of motion
Function Manual