4 setpoint selection, 5 setpoint interpolation, Setpoint selection – Lenze E94AxHE Technology Application CiA402 Device profile User Manual

Page 146: Setpoint interpolation

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9400 Technology applications | CiA402 device profile

Parameter setting & configuration

Cyclic synchronous position mode (IEC 61800-7)

146

L

EDS94TA11010xxxx EN 1.2 - 03/2010

Internal variables of the motor control (oscilloscope signals)

 The red numbers in brackets specified in the signal flow represent internal variables of

the motor control which can be recorded with the oscilloscope for diagnostic and

documentation purposes.

3.12.4

Setpoint selection

The position setpoint is selected via the

0x6071

object (target position). Use the

0x60B2

object (offset position) to additionally define an offset which is added to the position

setpoint.
The speed feedforward control value is selected via the

0x60FF

object (target velocity). Use

the

0x60B1

object (offset velocity) to additionally define an offset which is added to the

speed setpoint.
The torque feedforward control value is selected via the

0x6071

object (target torque). Use

the

0x60B2

object (torque offset) to additionally define an offset which is added to the

torque feedforward control value.

3.12.5

Setpoint interpolation

Similar to the "

Interpolated position mode

", the resulting position setpoint is interpolated

in this operating mode as well, if the communication cycle time differs from the control

cycle time of the controller (1 ms).

 For the determination of the required interpolation steps the

0x60C2

object

(interpolation time period) is used.

No. Variable of the motor control

Meaning

(1)

Torque.dnTotalTorqueAdd

Additive torque feedforward control value

(2)

Torque.dnTorqueSetpoint

Torque setpoint

(3)

Position.dnActualLoadPos

Actual position

(4)

Position.dnPositionSetpoint

Position setpoint

(5)

Position.dnActualMotorPos

Current motor position

(6)

Position.dnContouringError

Following error

(7)

Speed.dnOutputPosCtrl

Output signal - phase controller

(8)

Speed.dnSpeedSetpoint

Speed setpoint

(9)

Speed.dnActualMotorSpeed

Current motor speed

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