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5
Motor control (MCTRL)
5.9
Servo control (SC)
240
Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23
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5.9.4
Optimising the control mode
The "optimisation steps" given in the table below serve to further optimise the control behaviour of
the servo control and adjust it to the concrete application.
• Detailed information on the individual steps can be found in the following subchapters.
Generally, the following optimisation steps are recommended:
Note!
When the inverter has been enabled, starting up is delayed by the magnetization
process of the motor. The speed setpoint is only enabled for motor control if 87 % of the
motor magnetising current are available. If this delay is not tolerable for certain
applications, the preset percentage threshold can be reduced in
From version 12.00.00:
• Following successful motor parameter identification, the current controller
parameters (
,
) and field controller parameters (
calculated automatically.
• If these parameters are not to be calculated, bit 4 of
must be set to "1".
• Following successful motor parameter identification, the speed controller parameters
(
,
) can be calculated automatically.
• If these parameters are to be calculated, bit 6 of
must be set to "5".
• Following successful motor parameter identification, other controller parameters
(
) can be calculated automatically.
• If these parameters are to be calculated, bit 6 of
must be set to "6".
Optimisation steps
1
• The current controller should always be optimised if a motor of a third-party manufacturer with
unknown motor data is used!
2.
• The setting of the speed controller must be adapted depending on the mechanical path.
3.
Optimise response to setpoint changes and determine mass inertia
• For an optimal reference behaviour, the total moment of inertia can be used to make a feedforward
control of the speed setpoint.