Technical data

6.9.8.1 Signal diagram (sequence)
The diagram shows how to use STO function to ensure a safe stop of the drive and error
free operation of the servo amplifier.
1. Brake the drive in a controlled manner (speed setpoint=0V)
2. When speed = 0 rpm, disable the servo amplifier (Enable=0V)
3. Activate the STO function (STO-Enable=0V)
Suspended loads can set themselves to motion on motors without brake, because
the motor loses all torque when STO is engaged (STO-Enable open and/or 0 V). Use
motors with built-in holding brake.
S300 Instructions Manual 39
Kollmorgen 09/2011 Technical description