Commissioning
Optimising the drive behaviour after start
Speed controller adjustment
156
EDBCSXS064 EN 4.0
ƒ
The derivative gain (T
dn
) is set via C0072:
– Increase C0072 during operation until an optimal control mode is reached,
although the D component is mostly not used in praxis (C0072=0).
Code
Possible settings
IMPORTANT
No.
Designation
Lenze/
{Appl.}
Selection
C0072 Td speedCTRL
0.0
Derivative gain of speed
controller (T
dn
)
0.0
{0.1 ms}
32.0
Signal limitation
ƒ
If the drive operates with the maximum torque, the speed controller operates
within the limitation.
ƒ
The drive cannot follow the speed setpoint.
ƒ
The output SPEED−MCTRL.MMax is set to TRUE.
ƒ
The output TORQUE−MCTRL.MMax is set to TRUE.
Set the I component
For selecting torque starting values the integral component of the speed controller can be
set externally (e.g. when using the brake control).
ƒ
In case of speed control ("Speed"):
SPEED−MCTRL.ILoad = TRUE (C7411/12):
– The speed controller accepts the value applied at SPEED−MCTRL.ISet (C7431/8) into
its integral component.
– The value at SPEED−MCTRL.ISet (C7431/8) acts as a torque setpoint for the motor
control.
SPEED−MCTRL.ILoad = FALSE (C7411/12):
– The function is switched off.
ƒ
In case of torque control ("Torque"):
TORQUE−MCTRL.ILoad = TRUE (C7511/7):
– The speed controller accepts the value applied at TORQUE−MCTRL.ISet (C7531/8)
into its integral component.
– The value at TORQUE−MCTRL.ISet (C7431/8) acts as a torque setpoint for the motor
control.
TORQUE−MCTRL.ILoad = FALSE (C7511/7):
– The function is switched off.
