Safety Function Sto; Safety Characteristic Data - Kollmorgen SERVOSTAR 300 Instruction Manual

Kollmorgen
6.9

Safety function STO

A frequently required application task is the protection of personnel against the restarting
of drives. The S300 servo amplifier offers, even in the basic version, a single channel
STO function (Safe Torque Off) that can be used as a functional safe restart lock.
Advantages of the restart lock STO :
—
—
—
The safety function STO can be operated from a safe external control (semiconductor
output or driven contact).
The safetys concept is certified. The safety circuit concept for realizing the safety function
"Safe Torque Off" in the servo amplifiers S300 is suited for SIL CL 2 according to IEC
62061 and PLd according to ISO 13849-1.
6.9.1

Safety characteristic data

The subsystems (servo amplifiers) are totally described for safety technics with the
characteristic data SIL CL, PFH
Device
STO-Enable
S300 Instructions Manual
the DC bus link remains charged up, since the mains supply line remains active
only low voltages are switched, so there is no contact wear
very little wiring is required
Operation mode
single channel
02/2017
and T .
D M
EN 13849-1
PLd
Technical description
EN 62061 PFH [1/h] T
D
SIL CL 2 1,50E-07
[Year]
M
20
37