Rockwell Automation 20B PowerFlex 700 AC Drives Vector Control (v4.001 and up) - Manual (Page 97)

Rockwell Automation Publication 20B-UM002G-EN-P - July 2014 97
Appendix
A
Supplemental Drive Information
For product certifications and specifications, see PowerFlex 700 Adjustable
Frequency AC Drive Technical Data, publication
20B-TD001 .
Communication
Configurations Typical Programmable Controller Configurations
Logic Command/Status Words
Table 13 - Logic Command Word
Topic Page
Communication Configurations 97
IMPORTANT If block transfers are programmed to continuously write information to the
drive, care must be taken to properly format the block transfer. If attribute 10 is
selected for the block transfer, values will be written only to RAM and will not
be saved by the drive. This is the preferred attribute for continuous transfers. If
attribute 9 is selected, each program scan will complete a write to the drives
non-volatile memory (EEprom). Since the EEprom has a fixed number of
allowed writes, continuous block transfers will quickly damage the EEprom. Do
Not assign attribute 9 to continuous block transfers. Refer to the individual
communications adapter User Manual for additional details.
Logic Bits
Command Description 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
x Stop (1) 0 = Not Stop
1 = Stop
x Start (1)(2) 0 = Not Start
1 = Start
x Jog 0 = Not Jog
1 = Jog
x Clear Faults 0 = Not Clear Faults
1 = Clear Faults
x x Direction 00 = No Command
01 = Forward Command
10 = Reverse Command
11 = Hold Present Direction
x Local Control 0 = No Local Control
1 = Local Control