Safely Limited Speed (Sls) - Siemens SINUMERIK 828D Function Manual

3.6

Safely Limited Speed (SLS)

Definition
Definition according to EN 61800-5-2:
"The SLS function prevents the motor from exceeding the specified speed limit."
Examples of how the function can be used
Example
After opening a protective door, the machine
operator must enter the machine and in the
hazardous zone, operate a horizontal conveyor belt
running at a slow speed using an acknowledgment
button.
How does SLS function in detail?
SLS monitors the absolute value of the actual velocity. In addition, you can parameterize
SLS so that SLS limits the velocity to values below the monitoring threshold.
Safety Integrated
Function Manual, 07/2012, 6FC5397-3EP40-3BA0
SLS
Select SLS
Description of the Safety Integrated Extended Functions
Possible solution
Select SLS in the inverter via a fail-safe
•
input.
The inverter limits and monitors the velocity
•
of the horizontal conveyor.
3.6 Safely Limited Speed (SLS)
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