178 Rockwell Automation Publication PFLEX-RM003E-EN-E - January 2011
Chapter 1 Detailed Drive Operation
To control from a communication network (20-COMM module):
1. Toggle bit 1 “Start” in the logic command word on and then off to perform
a start.
2. Toggle bit 9 “CoastStop” in the logic command word on and then off to
perform a coast stop.
To configure the drive for 3-wire control with a current limit stop:
For parameter 153 [Control Options], set bit 8 “3WireControl” = 1.
To c o n tr o l f r o m d i g it a l i n p u t s :
1. Set one of the parameters 825…830 [Dig Inx Sel] = 18 “CurLim Stop.”
2. Set a second parameter 825…830 [Dig Inx Sel] = 5 “Start.”
To control from a communication network (20-COMM module):
1. Toggle bit 1 “Start” in the logic command word on and then off to perform
a start.
2. Toggle bit 8 “CurrLimStop” in the logic command word on and then off to
perform a current limit stop.
Note: In 3-wire mode, all stops commanded by pressing the HIM Stop button
are ramp stops.
Configuring the Start and Stop for 2-Wire Control (Maintained
Start and Stop)
To configure the drive for 2-wire control with a ramp stop:
Set parameter 153 [Control Options] bit 8 “3WireControl” = 0.
To c o n tr o l f r o m d i g it a l i n p u t s :
• Set one of the parameters 825-…830 [Dig Inx Sel] = 7 “Run”
To control from a communication network (20-COMM module):
1. Turn on bit 1 “Start” in the logic command word to run.
2. Turn off bit 1 “Start” in the logic command word to perform a ramp stop.
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