Bosch Rexroth VFC 3210 Operating Instructions Manual page 200

Bosch Rexroth AG VFC 3210
Functions and Parameters
Fig. 12-59: Automatic torque boot with square V/f curve
For further adjustment of the voltage boost, set parameter C2.22 'Automatic tor-
que boost factor'. Its default value 50 % means no adjustment. The calculation
equation is shown as below:
[Voltage boost] = √3 x 0.5 x I x R x [C2.22]
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R : stator resistance
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I : stator current
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Thus R should be preset or calculated or tuned, and then input to [C1.21].
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