Firmware
≤
11.00 - DMS 8.0 EN - 10/2011
L
139
8400 StateLine C | Reference manual
Motor control (MCTRL)
V/f characteristic control (VFCplus)
V/f characteristic control (VFC)
The accuracy of the torque limitation is limited because the actual torque (
C00056/2
) is
only calculated from the slip speed measured indirectly via the motor current.
V/f control (VFC + encoder)
The slip speed of the motor is available at the slip controller output. This leads to a high
accuracy for the actual torque (
C00056/2
) and the torque limitation.
[5-6]
Extract from the signal flow of the V/f control (VFC + encoder)
Parameter
Info
Parameter
Info
1
C00056/2
Actual torque value
9
C00830/22
MCTRL: nSpeedSetValue_a
2
C00830/29
Limitation of torque in motor mode
10
C00909/1
Max. pos. speed
3
C00830/28
Limitation of torque in generator mode
11
C00909/2
Max. neg. speed
4
C00054
Motor current
12
C00105
Decel. time - quick stop
5
C00022
Imax in motor mode
13
C00050
Speed setpoint
6
C00023
Imax in generator mode
7
C00074
Ti Imax controller
8
C00073
Vp Imax controller
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