Rockwell Automation 21G PowerFlex 750-Series AC Drives Reference Manual - Manual (Page 113)

Rockwell Automation Publication 750-RM001F-EN-P - February 2012 113
Chapter
9
Safe Maximum Speed and Direction Monitoring
Introduction This chapter describes Safe Maximum Speed (SMS), Safe Maximum
Acceleration (SMA), and Safe Direction (SDM) monitoring modes of safety
operation and provides a list of configuration parameters.
Safe Maximum Speed (SMS)
Monitoring Configure Safe Maximum Speed monitoring by setting the P61 [Max Speed
Enable] parameter to Enable. When configured, Safe Maximum Speed
monitoring is active any time the safety option configuration is valid and the
Safety mode is not Disabled.
When you configure the safety option for Safe Maximum Speed, the feedback
velocity is monitored and compared against a user-configurable limit.
The P62 [Safe Max Speed] parameter is relative to encoder 1. If the monitored
speed is greater than or equal to the configured P62 [Safe Max Speed] value, an
SMS Speed fault (Stop Category fault) occurs.
Figure 37 - Safe Max Speed Timing Diagram
Topic Page
Safe Maximum Speed (SMS) Monitoring 113
Safe Maximum Acceleration (SMA) Monitoring 116
Safe Direction Monitoring (SDM) 118
Max Speed, Max Accel, and Direction Monitoring Parameter List 120
P62 [Safe Max Speed]
Speed
Time