2 scaling of speed and torque values, Scaling of speed and torque values, 7technology applications – Lenze 8400 StateLine User Manual

Page 350

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7

Technology applications

7.3

TA "actuating drive speed (AC Drive Profile)"

350

Lenze · 8400 StateLine · Reference manual · DMS 12.0 EN · 06/2014 · TD05/TD14

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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 controller

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 controller

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

Parameter

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

Parameter

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

Parameter

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

Parameter

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

=

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