Rockwell Automation 21G PowerFlex 750-Series AC Drives Reference Manual User Manual

Page 115

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Rockwell Automation Publication 750-RM001F-EN-P - February 2012

115

Safe Maximum Speed and Direction Monitoring

Chapter 9

Figure 39 - SMS Speed Fault When P63 [Max Spd Stop Typ] Set to
’Use Configured Stop Type (Safe Stp Typ)’

If an SMS Speed fault is detected during the Stop Delay P47 [Max Stop Time]
and the P63 [Max Spd Stop Typ] parameter equals Use Safe Torque Off with
Check for Standstill (Torque Off ), the SMS Speed fault is reported and motion
power is removed. The Stop Delay P47 [Max Stop Time] continues with
standstill checking enabled.

Figure 40 - SMS Speed Fault When P63 [Max Spd Stop Typ] Set to
‘Use Safe Torque Off with Check for Standstill (Torque OFF)’

(1) This signal is internal, between the safety option and drive.

For more information about faults, see

Fault Reactions

on

page 155

.

Stop Request

Stop Delay

P47 [Max Stop Time]

SMS Speed Fault

P48 [Standstill Speed]

Speed

Time

P62 [Safe Max Speed]

P51 [Stop Decel Tol]

P46 [Stop Mon

Delay]

Stop Request

Stop Delay

P46 [Max Stop Time]

SMS Speed Fault

P48 [Standstill Speed]

Speed

Time

P62 [Safe Max Speed]

Motion Power

(1)

Unlock
Door

DC_Out

SS_In

SS_Out

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