Rockwell Automation 1336E IMPACT Adjustable Frequency AC Drive User Manual V 1-4.XX User Manual

Page 343

Advertising
background image

Control Block Diagrams

B-5

Selecting the Speed and Jog References

Multiple parameters can affect the speed and jog references. These
parameters are as follows:

When determining the speed reference, bits 12, 13, and 14 of Logic
Input Sts
(parameter 14) identify which speed reference or preset
speed parameter is used:

Likewise, when determining the jog reference, bits 2 and 6 of Logic
Input Sts
identify which jog speed parameter is used.

Using a Start Dwell

You can use Start Dwell Spd (parameter 193) and Start Dwell Time
(parameter 194) to set the speed and the length of time that the drive
should immediately output when a start command is issued. Once the
specified time has elapsed, the drive ramps to the speed you selected
in speed reference 1 through 7.

file:

Control

group:

Speed Reference

This parameter

group:

Is represented

by parameters:

And has

this function:

Speed Reference

28, 29, and 31
through 36

Supplies the speed references that the drive
should use.

Speed Scale
Factor

30 and 37

Sets the gain multiplier that is used to scale
the speed references.

Jog Speed

38 and 39

Sets the jog speed reference.

file:

Monitor

group:

Drive/Inv Status

If bit 14 is:

And bit 13 is:

And bit 12 is:

Then, the speed reference is:

0

0

0

Zero

0

0

1

Speed Ref 1

0

1

0

Speed Ref 2

0

1

1

Speed Ref 3

1

0

0

Speed Ref 4

1

0

1

Speed Ref 5

1

1

0

Speed Ref 6

1

1

1

Speed Ref 7

Speed

Time

Start Command

Start Dwell Spd
(parameter 193)

Start Dwell Time
(parameter 194)

0

0

Advertising