2 programming scheduled drive reference data, Table 4.3 - scheduled drive reference data, Start – Rockwell Automation GV3000/SE AC Drive ControlNet Network Communication Board, M/N 2CN3000 User Manual

Page 65: Stop, Fault reset, Run/jog, Forward/reverse, Ocl enable

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Programming the Drive

4-3

4.2.2 Programming Scheduled Drive Reference Data

To control the drive over the ControlNet network with the scheduled drive reference
data, parameter P.000 must be set to OP, specifying the option board as the drive’s
control source. The programmable controller controls the drive by using the drive
reference data, which is transmitted over the ControlNet network as scheduled data.

You can write from one to six words of data to the file you defined during drive
configuration as the Output Address. The value you defined as the Output Size
determines how many words of data the option board can accept from the
programmable controller. During a scheduled data transfer, the programmable
controller writes the data contained in the Output Address to the option board.

Scheduled drive reference data is composed of from one to six words. The first word
of the scheduled drive reference data is always the drive control word. Should you
configure less than six words of output data, you can access the drive reference data
through file N12 as an unscheduled data transfer. See section 4.3.

Table 4.3 describes the function of each word of the scheduled drive reference data.

Table 4.3 – Scheduled Drive Reference Data

Word:

Bit:

Description:

Word 0 –

Drive Control

Set and reset (clear) the bits in this word via your
programmable controller application program to control the
state of the drive.
The drive control bits that are used for drive sequencing are
evaluated in the drive every 20 msec.

0

Start

Use this bit to start the drive.

When the drive is in run mode, a 0-to-1 transition starts the
drive.

When the drive is in jog mode, a value of 1 jogs the drive. A
value of 0 stops the drive.

1

Stop

Use this bit to stop the drive.
0 = stop the drive
1 = allow the drive to run

2

Fault Reset

Use this bit to reset latched faults. Faults are reset via a
transition from 0 to 1. The error log in unaffected by this bit.

3

Run/Jog

Use this bit to select run or jog mode.
0 = run mode
1 = jog mode

4

Forward/Reverse

Use this bit to select the direction of the drive.
0 = forward
1 = reverse

5

OCL Enable

Use this bit to enable the Outer Control Loop.
0 = OCL disabled
1 = OCL enabled

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