Lenze 8400 - Manual (Page 32)

Technical data
General data and operating conditions
4

32 EDS84ASC552 EN 9.1
Open and closed loop control
Open and closed loop control processes
V/f characteristic control (VFCplus)
 Operation of asynchronous machines with a linear load torque characteristic

Operation of asynchronous machines with a quadratic load torque characteristic
V/f control (VFCplus + encoder)

V/f characteristic control VFCplus with additional speed feedback
Energy-saving V/f characteristic control (VFCplusEco)

Reduction of the power loss in the partial load operational range
Sensorless vector control (SLVC)

Encoderless control of asynchronous machines
Sensorless vector control (SLPSM)

Encoderless control of synchronous machines
Servo control (SC)
 Dynamic control of asynchronous machines in all quadrants

Dynamic control of synchronous machines in all quadrants
Switching frequency
2 kHz, 4 kHz, 8 kHz, 16 kHz,
Optionally noise optimised or power-loss optimised
Torque behaviour
Setting range SC ASM 1 : 20 ... 50 Valid for power- / current-adapted motor and correct
parameterisation.
Setting range SC
PMSM
1 : 20 ... 40 Valid for power- / current-adapted motor and correct
parameterisation.
Setting range SLVC 1 : 10 ... 20 Valid for power- / current-adapted motor and correct
parameterisation.
Setting range SLPSM 1 : 10 ... 20 Valid for power- / current-adapted motor and correct
parameterisation.
Information exclusively refers to controlled operational range.
Note: The setting range depends on the accuracy of the nameplate data and the equivalent circuit diagram
data of the motor. Depending on the data quality, the above-stated setting ranges may differ. In the case
of special motors or strong differences in the dimensionings of motor and controller, the values may also
differ.
Sensorless vector control (speed)
Minimum output
frequency
0.5 Hz (0 ... M
rated
)
Setting range 1 : 10 Based on 50 Hz and M
rated
Accuracy 0.5 %
In a setting range of 3 ... 50 Hz
Smooth running 0.1 Hz
Output frequency
Range -1000 Hz ... +1000 Hz
Absolute resolution 0.02 Hz
Standardised
resolution
Parameter data: 0.01 %, process data: 0.006 % (= 2 14 )
Digital setpoint selection
Accuracy 0.01 %
Analog setpoint selection
Accuracy 0.5 % Based on the final value