Emerson P/N 400518-02 manual Alternate Mode Select, Analog Torque Mode, Analog Velocity Mode

Models: P/N 400518-02

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Epsilon EP-I Indexing Drive and FM-2 Indexing Module Reference Manual

Alternate Mode Select

Analog Velocity Mode

Analog Inputs

The Analog Inputs receives an analog voltage which is converted to the Velocity Command Analog parameter using the Full Scale Velocity, Analog Input Full Scale, and Analog Input Zero Offset parameters. The equation for this conversion is:

VCA = ((AI − AZO) FSV)

AFS

Where:

VCA = Velocity Command Analog (RPM) AI = Analog Input (volts)

AZO = Analog Input Zero Offset (volts) FSV = Full Scale Velocity (RPM)

AFS = Analog Input Full Scale (volts)

The Velocity Command is always equal to the Velocity Command Analog in Analog Velocity mode. The Velocity Command is the command received by the velocity closed loop control.

Figure 72: Alternate Mode - Analog Velocity Mode

Analog Input Group

Full Scale Velocity

This parameter displays the maximum velocity attainable given the max analog value detailed in the Analog Full Scale parameter.

Analog Torque Mode

In Torque mode both the position and velocity loops are disabled and only the torque loop is enabled.

Note

Velocity related faults and velocity related input and output functions are still enabled (including Stop and Travel Limits).

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Emerson P/N 400518-02 manual Alternate Mode Select, Analog Torque Mode, Analog Velocity Mode, Analog Input Group