Parker ac890 - Page 172

Safe Torque Off 6-37
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames E & F
Channel A Fault Check:
STO test
Comprehensive Check, Activity
Expected reaction and effect
10
Ensure the drive is running and the motor is turning.
Disconnect terminal X11/01 for approximately 5 seconds (must
exceed 3 seconds).
Motor must immediately coast to rest.
Drive must report STO trip immediately.
X11/05 and /06 must remain OFF.
11
The STO function has latched in hardware to disable the drive.
Re-apply 24V to terminal X11/01, and then try to restart drive.
Drive must not start.
Drive must continue to report STO trip.
X11/05 and /06 must remain OFF.
12 Remove and re-apply all power to the drive X11/05 and /06 must be OFF.
13 Try to restart the drive.
Drive must start at SPT1.
X11/05 and /06 must remain OFF.
Channel B Fault Check:
STO test
Comprehensive Check, Activity
Expected reaction and effect
14
Ensure the drive is running and the motor is turning.
Disconnect terminal X11/03 for approximately 5 seconds (must
exceed 3 seconds).
Motor must immediately coast to rest.
Drive must report STO trip immediately.
X11/05 and /06 must remain OFF.
15
The STO function has latched in hardware to disable the drive.
Re-apply 24V to terminal X11/03, and then try to restart drive.
Drive must not start.
Drive must continue to report STO trip.
X11/05 and /06 must remain OFF.
16 Remove and re-apply all power to the drive X11/05 and /06 must be OFF.
17 Try to restart the drive.
Drive must start at SPT1.
X11/05 and /06 must remain OFF.
18 Stop the drive.
Drive must decelerate to rest.
X11/05 and /06 must remain OFF.