Emerson FM-3 Guía de usuario descargar pdf (Pagina 33)

Epsilon Eb and EN Drives Reference Manual

Figure 8: Velocity vs. Time Diagram using Preset Velocities

Summation Submode

In Summation submode the Velocity Command is the result of the sum of the Velocity

Command Analog and the Velocity Command Preset values.:

Where:

VC = Velocity Command

AC = Velocity Command Analog

PC = Velocity Command Preset

Example 1:

Use of Velocity Presets in a phase advance/retard application. Velocity Preset #0 is set to 0

RPM, Velocity Preset #1 is set to +5 RPM, and Velocity Preset #2 is set to -5 RPM. The

Analog Input is the command source for a web application where a phase adjustment may be

useful. Without interrupting the operation, you may select either Velocity Preset #1 or #2 to

speed up or slow down the motor thereby advancing or retarding the phase between the motor

and the web material.

PC AC VC +=

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Emerson FM-3 Guía de usuario Pagina 33