Rockwell Automation 20-COMM-L LonWorks Adapter User Manual

Page 38

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4-6

Configuring the LonWorks Network

20-COMM-L LonWorks Adapter User Manual

Publication 20COMM-UM008B-EN-P

Variable: nviDrvSpeedStpt

Format: SNVT_switch

Explanation:

This network variable input provides a speed reference setpoint. When
nviDrvSpeedStpt.state is set to zero, the drive is stopped.

Valid Range:

Default Value:

Default value is AUTO (state = 0xFF). This value is adapted at power up.
This network variable input uses adapter Parameter 7 - [RcvHrtBeat
Time]
if this function is set up for use. The actual drive speed also depends
on nviDrvSpeedScale.

Variable: nviDrvSpeedScale

Format: SNVT_lev_percent

Explanation:

This network variable input provides scaling for nviDrvSpdStpt. For
example, if nviDrvSpeedStpt value is 100% and nviDrvSpeedScale value is
-150%, then actual speed setpoint value is -150% (reverse direction at 1.5
times nominal speed).

Valid Range: -163.84…163.83%

Default Value: Defined by nciDrvSpeedScale.

Drive Speed Setpoint

State

Value

Requested Speed

0

n/a

STOPPED

1

0%

0%

1

0.5…100.0%

0.5…100.0%

1

100.0%

100.0%

0xFF

n/a

AUTO (Default)

Speed Setpoint Scaling

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