Safe Torque Off (STO) with PSD1
70 (109)
192-011006N8 2019-07
09.10.19 09:27
6.2.1.
STO principle with PSD1-S
With the single axis drive PSD1-S STO is activated via 2 channels (STOA/ and
STOB/).
Pin
Name
Description
X17.12 STOA/*
Input
STOA/ = 0 V
Motor deactivated
STOB/ = 0 V
Motor deactivated
STOA/ = 24 VDC and
STOB/ = 24 VDC
Motor released
X17.16
(see
page
STOB/*
Input
X17.14 STOGND*
Input
STO Ground.
Ground of the external 24 VDC must be connected to the
central ground connection (bottom of the device).
* The inputs are optically isolated.
6.2.2.
STO principle of PSD1-S with one axis module
At the PSD1-M with one axis module, STO is activated via 2 channels (STOA1/
und STOB1/).
Pin
Name
Description
X17.12 STOA1/*
Input
STOA1/ = 0 V
Motor deactivated
STOB1/ = 0 V
Motor deactivated
STOA1/ = 24 VDC and
STOB1/ = 24 VDC
Motor released
X17.16
(see
page
49)
STOB1/*
Input
X17.14 STOGND1* input
STO Ground.
Ground of the external 24 VDC must be connected to the
central ground connection (bottom of the device).
* The inputs are optically isolated.