Lenze 8400 TopLine - Manual (Page 236)

5 Motor control (MCTRL)
5.9 Servo control (SC)
236
Lenze · 8400 TopLine · Reference manual · DMS 6.0 EN · 06/2014 · TD05/TD14
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
Tip!
Information on the optimisation of the control mode and the adaptation to the real
application is provided in chapter " Optimising the control mode ". ( 236)
Parameterisable additional functions are described correspondingly in the chapter
" Parameterisable additional functions ". ( 256)
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 controller 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 C00918 .
From version 12.00.00:
• Following successful motor parameter identification, the current controller
parameters ( C00075 , C00076 ) and field controller parameters ( C00077 , C00078 ) are
calculated automatically.
• If these parameters are not to be calculated, bit 4 of C02865/1 must be set to "1".
• Following successful motor parameter identification, the speed controller parameters
( C00070/2 , C00071/2 , C00072 ) can be calculated automatically.
• If these parameters are to be calculated, bit 6 of C02865/1 must be set to "5".
• Following successful motor parameter identification, other controller parameters
( C00011 , C00022 , C00497 ) can be calculated automatically.
• If these parameters are to be calculated, bit 6 of C02865/1 must be set to "6".
Optimisation steps
1. Optimise current controller . ( 237)
• The current controller should always be optimised if a motor of a third-party manufacturer with
unknown motor data is used!
2. Optimise speed controller . ( 238)
• The setting of the speed controller must be adapted depending on the mechanical path.
3. Optimise response to setpoint changes and determine mass inertia . ( 241)
• For an optimal reference behaviour, the total moment of inertia can be used to make a feedforward
control of the speed setpoint.