Lenze E84AVHC Series - 5.5 V;f control (VFCplus + encoder)

Firmware ≤ 05.00 - DMS 4.2 EN - 02/2010 L 127
8400 HighLine | Parameter setting & configuration
Motor control (MCTRL)
V/f control (VFCplus + encoder)
5.5 V/f control (VFCplus + encoder)
The V/f characteristic control (VFCplus) described above can be operated with a speed
feedback. This has the following advantages:
 Steady-state accuracy of the speed
 Less parameterisation effort compared to the sensorless vector control (SLVC)
 Better dynamic performance compared to the V/f characteristic control without
feedback or to the sensorless vector control (SLVC).
 Suitable for group drives
Short overview of the relevant parameters:
 The descriptions provided in the "V/f characteristic control (VFCplus)" chapter
apply in the same way to the V/f control.
( 112)
 Note!
• Ensure that the maximum input frequency of 100 kHz is not exceeded during
execution of the motor control function with speed feedback. Using DI1(6)
and DI2(7) as frequency inputs ( 221)
• In this operating mode, slip compensation (C00021
) is deactivated because
the slip is calculated from the actual speed value and the speed setpoint and
is injected by the slip regulator if V/f operation with feedback is selected.
Parameter Info
C00006
Selection of the operating mode for V/f characteristic control with feedback
with
• value "6" for operating mode: VFCplus, V/f linear characteristic, or
• value "8" for operating mode: VFCplus, V/f square-law characteristic
C00011
Reference speed
C00015 Base frequency
C00016
V
min
boost
C00018
Switching frequency
C00022
Current limit (in motor mode)
C00023
Current limit (in generator mode)
C00073/1
I
max
current controller gain
C00074/1
I
max
current controller reset time
C00080
Override point of field weakening function
C00115/1
Function of digital inputs 1 and 2
C00420/1
Number of encoder increments, digital inputs 1 and 2
C00495
Speed sensor selection
C00496
Encoder evaluation procedure
C00497/1
Encoder filter time for digital inputs 1 and 2
C00909/1 /2
Maximum positive / negative speed
C00910/1 /2
Maximum positive / negative output frequency
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