6 v/f control (vfcplus), 1 basic settings, V/f control (vfcplus) – Lenze E94AxPExxxx User Manual
Page 229: Basic settings, V/f control (vfcplus) ( 229), 6motor interface
Lenze · 9400 Servo PLC· Reference manual · DMS 4.0 EN · 11/2013 · TD05/06
229
6
Motor interface
6.6
V/f control (VFCplus)
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6.6
V/f control (VFCplus)
If this motor control mode is set in
, the output voltage of the controller follows a firmly
defined characteristic.
6.6.1
Basic settings
After the motor and controller have been optimally adjusted to each other, the "initial
commissioning steps" described in the following table are sufficient for a simple characteristic
control.
• Detailed information on the individual steps can be found in the following subchapters.
Tip!
How to optimise the control behaviour and adjust it to the concrete application is described
Parameterisable additional functions are described correspondingly in the chapter
"
Parameterisable additional functions
Note!
The operation of vertical drives/hoists is only supported up to 55 kW by the V/f control!
Initial commissioning steps
1.
Defining the V/f characteristic
2.
3.
Parameterising load adjustment
4.
Activating voltage vector control
• The Voltage Vector Control (VCC), which can be activated, serves to provide a torque at low field
frequencies. This task is executed by a current controller the output voltage of which is added to the
voltage from the characteristic.
5.
Defining the current limit (Imax controller)
6. Additional "flying restart" function:
• In the Lenze setting, this parameterisable additional function is activated.
• If the flying restart function is not required, deactivate this function.
Flying restart function ( 257)
Only deactivate the flying restart if it is ensured that the drive is always at standstill in the case of controller
enable!
7. Additional "DC-injection braking" function:
• In the Lenze setting, this parameterisable additional function is deactivated.
• If DC-injection braking is required, activate this function.