Parker ac890 - Page 145

6-10 Safe Torque Off
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames E & F
Examples of wiring to X11/05 and X11/06.
Active high output:
Active low output:
The load is energised and X11/05 is high when
STO is in the intended safe STO state.
The load is energised and X11/06 is low when STO is
in the intended safe STO state.
The examples show the use of the 24V supply provided on X14/03 (+24V) and X14/04 (0V) as source of power
to a load. Alternatively an external 24V supply could be used.
Note: If a drive is powered from 24V only, i.e., 24V is applied to terminals X13/01 or X13/02 and the 3 phase
power is off, the STO user output will still reflect the status of the two STO user inputs.
X11/06 X14/03
24VDC
X11/05 X14/04
890STO
LOAD
X11/06 X14/03
24VDC
X11/05 X14/04
890STO
LOAD
0V
0V