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B-4 Control System MN1901
B.1.4 Torque amplifier
Setting CONFIG to _cfTORQUE configures the MintDrive
II
as a torque amplifier, as shown in
Figure 55. Here, a torque 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 torque profiler. The profiler generates a torque demand signal that smoothly changes
between successive torque targets. This torque demand signal is fed into the torque
controller, and the remaining system operates as described in section B.1.1.
Torque
controller
Power stage
+ motor
Torque
demand
PWM
Torque
profiler
Torque
reference
Measured c ur r ent
Figure 55 - Control structure in Torque (_cfTorque) configuration