Rockwell Automation 21G PowerFlex 750-Series AC Drives Reference Manual - Manual (Page 67)

Rockwell Automation Publication 750-RM001F-EN-P - February 2012 67
Safe Stop and Safe Stop with Door Monitoring Modes Chapter 6
Automatic
If the SS Reset is configured as automatic, the safety option always attempts a
reset if it is in the Safe State or has initiated a Safe Stop Type. The reset is
attempted when the SS_In input transitions from OFF to ON or if SS_In is ON
at powerup.
Manual
If the SS Reset is configured as manual, the reset is attempted when the SS_In
input is ON and the Reset_In input is ON.
Manual Monitored
A manual monitored reset requires an OFF to ON to OFF transition of the
Reset_In input.
If at any time before the closing and opening of the Reset_In input, the SS_In
input transitions from ON to OFF, the reset is aborted.
Faults
If a fault occurs, other than an Invalid Configuration fault or an ESM
Monitoring fault, the SS_In input must turn OFF and ON again to reset the
Wait SS Cyc bit before a successful SS Reset can occur.
Door Control
The status of door control logic (Lock or Unlock) and the Door Monitor Input
(DM_In), along with the safety option’s location in the system P20 [Cascaded
Config] and Door Control Output Type P57 [Door Out Type] determine
whether the Door Control output (DC_Out) is locked or unlocked during
normal operation.
When the DC_Out output has no faults, the safety option is configured for Safe
Stop, and the safety option is monitoring motion, the door control logic state is
Locked. It remains locked while a Safe Stop is being executed. For all Safe Stop
Types except Safe Torque Off without Standstill Checking, door control logic is
set to Unlock only when Standstill Speed has been reached.
ATTENTION: If the Safe Stop Type is Safe Torque Off without Standstill
Checking, door control logic is set to Unlock when the Stop Delay P47 [Max Stop
Time] has elapsed, regardless of speed.