Figure 6.7-8 - Dc Motor Tachometer Gain And Compensation - Newport ESP6000 User Manual

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General purpose velocity feedback drivers usually have two adjustments:
tachometer gain and compensation (Figure 6.7-8).
compensation
control signal
±10V
tach. gain
Figure 6.7-8 — DC Motor Tachometer Gain and Compensation
The tachometer gain is used to set the ratio between the control voltage
and the velocity. The compensation adjustment reduces the bandwidth of
the amplifier to avoid oscillations of the closed loop.
The UniDrive can be configured either as a current driver or a velocity
driver. When used with an ESP-compatible stage, the ESP6000 controller
card will configure the UniDrive for optimum stage performance.
V = velocity
M
T
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