11.3.5 Expansion card "Safety 1-2" (S3)
This expansion card includes all available safety functions. Rotatory synchronous motors
are allowed when using this safety card. All functions fulfill the safety requirements SIL CL3
acc. to IEC 62061 respectively performance level PLe acc. to ISO 13849-1.
The safety card restricts feedback capability of the drive (refer to Safety Card Operation
Manual or to the KDN).
11.3.5.1 SSafe drive functions S1-2
The safety functions are activated using the digital inputs on the expansion card. The fol-
lowing functions are available:
Safe Torque Off (STO)
With the STO function, the power supply to the motor is interrupted safely directly in the
drive. This corresponds to an uncontrolled braking in accordance with IEC 60204-1,cat.0.
Safe Stop 1 (SS1)
With the SS1 function, the drive is stopped by controlled braking and then the power supply
to the motor is interrupted safely. This corresponds to an uncontrolled braking in accordance
with IEC 60204-1, cat.1.
Safe Stop 2 (SS2)
With the SS2 function, the drive is stopped by controlled braking and then remains at a con-
trolled standstill (SOS). This corresponds to a controlled braking in accordance with IEC
60204-1, cat.2.
Safe Operating Stop (SOS)
The SOS function monitors the stop position reached and prevents any deviation outside a
defined range.
Safely Limited Speed (SLS)
The SLS function monitors the drive to ensure that it maintains a defined speed.
Safe Limited Increments (SLI)
The SLI function monitors that the drive maintains a relative position.
Safe Limited Position (SLP)
The SLP function monitors that the drive maintains an absolute position.
Safe Speed Range (SSR)
The SSR function checks the current speed of the drive against maximum and minimum lim-
iting values.
Safe Direction (SDI)
The SDI function ensures that the drive can only move in one (defined) direction.
Safe Brake Control (SBC)
An external mechanical brake can be controlled by the 2 poles output "SBC+/SBC" of the
safety card. SBC will become active with STO.
Safe Brake Test (SBT)
The safety function SBT can be used for testing the external mechanical brake and the
internal motor holding brake.
11.3.5.2 Safety NotesS1-2
Comply with the operating instructions for the safety card. You can find the operating instruc-
tions on the CD-ROM provided with the product or on the website.
S748-772 Instructions Manual | 11 Expansions
Kollmorgen | kdn.kollmorgen.com | July 2019 155
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