Lenze 8400 - Scaling of Speed and Torque Values

7 Technology applications
7.3 TA "actuating drive speed (AC Drive Profile)"
426
Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23
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7.3.5.2 Scaling of speed and torque values
Scaling of the speed values
The speed setpoint is defined by the bus in [rpm]. The conversion then takes place in the inverter as
all speed-related signals are processed to a reference variable in percent. An adjustable scaling
factor serves to make an additional scaling.
For the output of the actual speed value to the bus, the following conversion is made:
Scaling of the torque values
The torque setpoint is defined by the bus in [Nm]. The conversion then takes place in the inverter as
all torque-related signals are processed to a reference variable in percent. An adjustable scaling
factor serves to make an additional scaling.
For the output of the actual torque value to the bus, the following conversion is made:
Equation for scaling the speed setpoint
Parameters Name Description
C00011 Appl.: Reference speed Reference variable for speed-related signals
C01353/1
ACDrive: Speed scaling In the Lenze setting "0", no scaling takes place (2
0
=1)
Equation for scaling the actual speed value
Parameters Name Description
C00011 Appl.: Reference speed Reference variable for speed-related signals
C01353/1
ACDrive: Speed scaling In the Lenze setting "0", no scaling takes place (2
0
=1)
Equation for scaling the torque setpoint
Parameters Name Description
C00057 Maximum torque Reference variable for torque-related signals
C01353/2
ACDrive: Torque scaling In the Lenze setting "0", no scaling takes place (2
0
=1)
Equation for scaling the actual torque
Parameters Name Description
C00057 Maximum torque Reference variable for torque-related signals
C01353/2
ACDrive: Torque scaling In the Lenze setting "0", no scaling takes place (2
0
=1)
Speed setpoint
Application
Speed setpoint
Bus
[rpm]
16384
Reference speed [rpm]
----------------------------------------------------------
1
2
Scaling factor
--------------------------------
⋅⋅=
Actual speed value
Bus
[rpm] Actual speed value
Application
Reference speed [rpm]
16384
----------------------------------------------------------
2
Scaling factor
⋅⋅=
Torque setpoint
Application
Torque setpoint
Bus
[Nm]
16384 100⋅
Maximum torque [0.01 Nm]
-------------------------------------------------------------------------
1
2
Scaling factor
--------------------------------
⋅⋅=
Actual torque
Bus
[Nm] Actual torque
Application
Maximum torque [0.01 Nm]
16384 100⋅
-------------------------------------------------------------------------
2
Scaling factor
⋅⋅=