Kollmorgen S772 Instruction Manual page 42

Technical description
6.9.9.1 Safe operation sequence
If a controlled braking before the use of STO is necessary, the drive must be braked and
the inputs STO1-ENABLE and STO2-Enable have to be separated from +24 VDC
time-delayed.
1. Brake the drive in a controlled manner (speed setpoint = 0V)
2. When speed = 0 rpm, disable the servo amplifier (enable = 0V)
3. If there is a suspended load, block the drive mechanically
4. Activate STO (STO1-Enable and STO2-Enable = 0V)
The diagram shows how STO should be used to ensure a safe stop of the drive and error
free operation of the servo amplifier.
speed
Enable
X3A/1
STO1-Enable
X4/7
STO2-Enable
X4/5
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11/2018
S748-S772 Instructions Manual
Kollmorgen
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