Rockwell Automation 20P PowerFlex Digital DC Drive - Manual (Page 217)

Rockwell Automation Publication 20P-UM001I-EN-P - February 2013 217
Supplemental Drive Information Appendix A
Communication
Configurations Typical Programmable Controller Configurations
Logic Command/Status Words
See parameter 1328 [Drive Logic Rslt] for more information.
Figure 60 - Logic Command Word
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)
(1) A “0 = Not Stop” condition (logic 0) must first be present before a “1 = Start” condition will start the drive. The Start command acts
as a momentary Start command. A “1” will start the drive, but returning to “0” will not stop the drive.
(2) This Start will not function if a digital input (parameters 133…144) is programmed for 2-Wire Control (option 5 “Run”, 6 “Run
Forward” or 7 “Run Reverse”).
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
x MOP
Increment 0 = Not Increment
1 = Increment
x x Accel Rate 00 = No Command
01 = Use Accel Time 1
10 = Use Accel Time 2
11 = Use Present Time
x x Decel Rate 00 = No Command
01 = Use Decel Time 1
10 = Use Decel Time 2
11 = Use Present Time
x x x Reference
Select
(3)
(3) This Reference Select will not function if a digital input (parameters 133…144) is programmed for “Speed Sel 1, 2 or 3” (option 17,
18 or 19). Note that Reference Selection is “Exclusive Ownership”. See [Reference Owner] on page 176 .
000 = No Command
001 = Ref. 1 (Spd Ref A)
010 = Ref. 2 (Spd Ref B)
011 = Ref. 3 (Preset Spd 3)
100 = Ref. 4 (Preset Spd 4)
101 = Ref. 5 (Preset Spd 5)
110 = Ref. 6 (Preset Spd 6)
111 = Ref. 7 (Preset Spd 7)
x MOP
Decrement 0 = Not Decrement
1 = Decrement