12 basic drive functions – Lenze E94AxPExxxx User Manual
Page 566
12
Basic drive functions
12.12
Brake control
566
Lenze · 9400 Servo PLC· Reference manual · DMS 4.0 EN · 11/2013 · TD05/06
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Further torque feedforward control options
[12-40] Feedforward control with parameterised starting torque
Application example:
In the case of a hoist drive, the load is always known. For an optimum behaviour a torque
proportional to the load and additionally 10 Nm as a constant feedforward control value should be
loaded into the speed controller.
• As a constant feedforward control value the starting torque 1 is used (
="10 Nm",
= "0", and BRK_bStartingTorque2 = FALSE).
• Via the input BRK_dnTorqueAdd_n the torque is specified proportional to the load.
• Via the input BRK_dnTorqueAdd_n an
additional feedforward control value can
be defined.
1
0
BRK_dnTorqueAdd_n
CTRL
Speed controller