Parameters, 5 analog i/o, 1 analog output – Lenze E94P PositionServo with MVOB User Manual

Page 55: 2 analog output current scale (volt/amps), 3 analog output velocity scale (mv/rpm), 4 analog input current scale (amps/volt), 5 analog input velocity scale (rpm/volt)

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Parameters

5.5

Analog I/O

5.5.1

Analog Output

The PositionServo has one analog output with 10-bit resolution on P3 pin 23. The signal is scaled to ±10V.
The analog output can be assigned to the following functions:

Not Assigned

Phase current RMS

Phase current Peak

Motor Velocity

Phase R current

Phase S current

Phase T current

Iq current (Torque component)

Id current (Direct component)

5.5.2

Analog Output Current Scale (Volt/Amps)

Applies scaling to all functions representing CURRENT values.

5.5.3

Analog Output Velocity Scale (mV/RPM)

Applies scaling to all functions representing VELOCITY values. (Note: that mV/RPM scaling units are
numerically equivalent to volts/kRPM)

5.5.4

Analog Input Current Scale (Amps/Volt)

This parameter sets the analog input sensitivity for current reference used when the drive operates in torque
mode. Units for this parameter are A/Volt. To calculate this value use the following formula:

Iscale = Imax / Vin max

Imax

maximum desired output current (motor phase current RMS)

Vin max

max voltage fed to analog input at Imax

Example: Imax

= 5A (phase RMS)

Vin max = 10V

Iscale

= Imax / Vin max

= 5A / 10V = 0.5 A / Volt (value to enter)

5.5.5

Analog Input Velocity Scale (RPM/Volt)

This parameter sets the analog input sensitivity for the velocity reference used when the drive operates
in velocity mode. Units for this parameter are RPM/Volt. To calculate this value use the following formula:

Vscale = VELOCITYmax / Vin max

VELOCITYmax

maximum desired velocity in RPM

Vin max

max voltage fed to analog input at Velocity

max

Example: VELOCITYmax = 2000 RPM

Vin max

= 10V

Vscale

= VELOCITYmax / Vin max

= 2000 / 10V

= 200 RPM / Volt (value to enter)

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