Safe Torque Off
6-17
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames E & F
4
The fault state (one input high, the other input low) has persisted for longer than 3.0 seconds (being the
maximum fault detection time). The STO hardware logic locks into state 4. The STO function prevents the
drive from starting. User output is OFF. To exit from state 4, the drive must be powered off (all power
removed including any auxiliary 24Vdc) and back on
DANGER
OPERATION OF THE 890 UNIT SHOULD CEASE IMMEDIATELY AND THE UNIT SHOULD BE
RETURNED TO PARKER SSD DRIVES FOR INVESTIGATION AND REPAIR.
FAILURE TO DO SO COULD RESULT IN INJURY, DEATH OR DAMAGE.
FURTHER OPERATION OF THE 890 WITHOUT RESOLVING THIS FAILURE IS ENTIRELY AT
THE USER’S OWN RISK.
SEE SAFETY CATEGORY DEFINITIONS AND LIMITATIONS, REFER TO EN ISO 13849-1:2008.