Rockwell Automation 20D PowerFlex 700S with Phase I Control Reference Manual - Manual (Page 36)

36 Rockwell Automation Publication PFLEX-RM002D-EN-E - August 2013
Chapter 1 Detail Drive Configuration and Operation
Decel Time Parameter 33 [Decel Time] sets the rate at which the drive ramps down its output
during a ramp Stop command or during a decrease in commanded speed.
The rate established is the result of the programmed Decel Time and the
programmed motor rated speed parameter 4 [Motor NP RPM] as follows:
Times are adjustable in 0.0001 second increments from 0.01 to 6553.5 seconds.
DeviceNet (20-COMM-D) This serves as a supplement to the PowerFlex DeviceNet Adapter Users Manual,
publication
20COMM-UM002 , addressing items specific to the PowerFlex
700S. Please refer to the user manual for details on 20-COMM-D set-up,
configuration, I/O messaging, and Explicit messaging.
Technical Information
The 20-COMM-D device must be v1.005 firmware or later in order to be used
with the PowerFlex 700S.
The Logic Command and Logic Status are 16 bits plus a 16 bit pad word for a
total of 32 bit data. The bit definitions of the Logic Command word follow the
same pattern as parameter 158 [Drive Logic Rslt]. The bit definitions of the
Logic Status word follow the same pattern as bits 0-15 of parameter 155 [Logic
Status]. Reference, Feedback, and Datalinks are 32 bit data. This means with just
the Logic Command/Status and Speed Ref/Fdbk I/O enabled, the 20-COMM-
D would map 8 bytes of I/O in the DeviceNet Scanner. With the Logic
Command/Status, Speed Ref/Fdbk and all of the Datalinks enabled, the 20-
Motor RPM (Parameter 4)
Decel Time (Parameter 33)
----------------------------------------------------------------- Decel Rate (RPM/sec) =