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B.1.3 Speed amplifier
Setting CONFIG to _cfVELOCITY configures the MintDrive
Figure 54. Here, a speed reference obtained from a specified source (e.g. a Mint program, the
WorkBench v5 Command window, the analog demand input, or Fieldbus) provides targets for
a speed profiler. The profiler generates a speed demand signal that smoothly changes
between successive speed targets. This speed demand signal is fed into the speed controller,
and the remaining system operates as described in section B.1.1.
Speed
reference
Figure 54 - Control structure in Velocity (_cfVelocity) configuration
MN1901
Speed
profiler
Speed
demand
Speed
controller
II
as a speed amplifier, as shown in
Torque
demand
PWM
Torque
controller
Measured current
Measured speed
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Power stage
+ motor
Control System B-3
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