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Control System B-3MN1901
B.1.3 Speed amplifier
Setting CONFIG to _cfVELOCITY configures the MintDrive
II
as a speed amplifier, as shown in
Figure 54. Here, a speed reference obtained from a specified source (e.g. a Mint program, the
W orkBench 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
controller
Torque
controller
Power stage
+ motor
Torque
demand
PWM
Speed
demand
Speed
profiler
Speed
reference
Measured c ur r ent
Measured s peed
Figure 54 - Control structure in Veloc ity (_cfVelocity) configuration