2 select motor control, Select motor control, 6motor interface – Lenze E94AxPExxxx User Manual
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Lenze · 9400 Servo PLC· Reference manual · DMS 4.0 EN · 11/2013 · TD05/06
169
6
Motor interface
6.2
Select motor control
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6.2
Select motor control
In
the motor control is selected; the default is the servo control for synchronous motors.
Alternatively to the servo control, also the V/f control and the sensorless vector control are provided
in
:
• The V/f control is the classic operating mode for standard applications.
• Compared to the V/f control, improved drive characteristics can be achieved with sensorless
vector control by:
• a higher torque across the entire speed range
• a higher speed accuracy and a higher concentricity factor
• Higher efficiency
[6-1]
Comparison of V/f control and sensorless vector control
Open/closed loop control
Detailed information
1 SC: Servo control for synchronous motor
2 SC: Servo control for asynchronous motor
4 SLVC: Sensorless vector control
Sensorless vector control (SLVC) ( 211)
6 VFCplus: V/f control open loop
7 VFCplus: V/f control closed loop
V/f control
Sensorless vector control
M
n
n
N
M
N
Note!
Sensorless vector control (SLVC) is only approved for powers up to 55 kW and horizontal
applications (no hoists or lifting equipment)!