Siemens SINAMICS S120 Function Manual page 360

Safety Integrated basic functions
9.1 General information
● Safety Integrated Basic Functions
● Safety Integrated Extended Functions (including the Basic Functions)
Note
When a drive object for which Safety Integrated Extended Functions are enabled is
switched to "Park" mode, the Safety Integrated software responds by selecting STO
without generating a separate message.
Prerequisites for the Extended Functions
● Special license for Extended Functions
360
These functions are part of the standard scope of the drive.
– Safe Torque Off (STO)
STO is a safety function that prevents the drive from restarting unexpectedly, in
accordance with EN 60204-1:2006 Section 5.4.
– Safe Stop 1 (SS1, time controlled)
Safe Stop 1 is based on the "Safe Torque Off" function. This means that a Category 1
stop in accordance with EN 60204-1:2006 can be implemented.
– Safe Brake Control (SBC)
The SBC function permits the safe control of a holding brake.
SBC is supported only by Power/Motor Modules in chassis format with order number
...3 or higher. Blocksize Power Modules also require a Safe Brake Relay for this
function.
– Safe Stop 1 (SS1, time and acceleration controlled)
The SS1 function is based on the "Safe Torque Off" function. This means that a
Category 1 stop in accordance with EN 60204-1:2006 can be implemented.
– Safe Stop 2 (SS2)
The SS2 function brakes the motor safely with a subsequent transition to "Safe
Operating Stop" (SOS).
– Safe Operating Stop (SOS)
"Safe Operating Stop" (SOS) protects against unintentional movements. The drive is
in closed-loop control mode and is not disconnected from the power supply.
– Safely Limited Speed (SLS)
The "Safely Limited Speed" (SLS) protects against excessively high drive speeds.
– Safe Speed Monitor (SSM)
The SSM function reliably monitors the speed limit and issues a safe output signal, but
without a response function.
Unlike the Basic Functions, a special license is required for Safety Integrated Extended
Functions. The associated license key is entered in parameter p9920 in ASCII code. The
license key can be activated via parameter p9921=1. For information on how to generate
the license key for the product "SINAMICS Safety Integrated Extended Functions", read
the section "Licensing" in the SINAMICS S120 Function Manual. An insufficient license is
indicated via the following alarm and LED:
Function Manual, (FH1), 10/2008, 6SL3097-2AB00-0BP5
Drive functions