96 Rockwell Automation Publication 20A-UM001N-EN-P - July 2013
Appendix A Supplemental Drive Information
Logic Command Word/ Logic Status Word
Tab le 1 8 and Ta b le 19 provide bit settings for logic command word and
logic status word.
Table 18 - Logic Command Word
Logic Bits
1514131211109876543210Command Description
xStop
(1)
0 = Not Stop
1 = Stop
xStart
(1)(2)
(1) A “0 = Not Stop” condition (logic 0) must first be present before a “1 = Start” condition starts the drive. The Start command acts as
a momentary Start command. A “1” starts the drive, but returning to “0” does not stop the drive.
(2) This Start does not function if a digital input (parameters 361…366) is programmed for 2-Wire Control (option 7, 8, or 9).
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
xMOP
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
xxx Reference
Select
(3)
(3) This Reference Select does not function if a digital input (parameters 361-366) is programmed for “Speed Sel 1, 2, or 3” (option 15,
16, or 17). When using the Logic Command Word for the speed reference selection, always set Bit 12, 13, or 14. Note that reference
selection is “Exclusive Ownership” see [Reference Owner] on page 62
.
000 = No Command
001 = Ref. 1 (Ref A Select)
010 = Ref. 2 (Ref B Select)
011 = Ref. 3 (Preset 3)
100 = Ref. 4 (Preset 4)
101 = Ref. 5 (Preset 5)
110 = Ref. 6 (Preset 6)
111 = Ref. 7 (Preset 7)
xMOP
Decrement
0 = Not Decrement
1 = Decrement
To Next Page
Loading...
Need help?
General
