Rockwell Automation 22-COMM-L LonWorks Adapter - Manual (Page 47)

Configuring the Network 4-19
This section describes what conditions are required for performing some
common actions and how the combination of SNVTs and SCPTs affects
the operation of the drive.
Starting the Drive
The drive will RUN if the drive state element in the Network Variable
Input nviDrvSpeedStpt is set to “1.”
Stopping the Drive
The drive will stop and use the default stop mode if the drive state
element in the Network Variable Input nviSpeedStpt is set to “0.” When
the node is brought offline or disabled, the drive will take the idle fault
response action set in adapter Parameter 09 - [Idle Flt Action].
Adjusting the Frequency Setting
The actual value written to the drive equals:
nciNmlFreq * (nviDrvSpeedStpt ÷ 100) * (nviDrvSpeedScale ÷ 100)
Explanation: Nominal frequency is the basis for speed setpoint and
speed scale percent values. For more information, see
Drive Speed
Setpoint on page 4-6 and Speed Setpoint Scaling on page 4-6 .
Resetting Faults
If an error occurs, the drive faults. After removing the cause of the fault
and setting nviObjRequest to RQ_CLEAR_ALARM, the drive can be
reset.
Conditions Required for Operation
nviDrvSpeedStpt Value
nviSpeedScale
Value (%)
Resulting Speed Requested Speed (%) Drive State
0.0 1 (RUN) 0.000 0 Hz (RUN)
0.0 1 (RUN) 100.000 0 Hz (RUN)
100.0 1 (RUN) 0.000 0 Hz (RUN)
100.0 0 (STOP) 150.000 (Normal) STOP
100.0 1 (RUN) 150.000 1.0 * 1.5 * NomFreq (RUN)
100.0 1 (RUN) -75.000 1.0 * -0.75 * NomFreq (RUN)
50.0 1 (RUN) 150.000 0.5 * 1.5 * NomFreq (RUN)