11 basic drive functions – Lenze 9400 User Manual

Page 486

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11

Basic drive functions

11.8

Position follower

486

Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06

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11.8.1

Internal interfaces | "LS_PositionFollower" system block

The LS_PositionFollower system block provides the internal interfaces for the basic function

"Position follower" in the function block editor.

Inputs

Outputs

Note!

Ensure that the system block is called in a cyclic application task.
Basically, projects which only contain an unsolicited task and no cyclic task are not

permissible!

Identifier

DIS code | data type

Information/possible settings

PF_bEnable

C02689/1

| BOOL

Requesting control via the basic function

TRUE If no other basic function is active, a change-over to the "Position

follower active" function state is carried out, and the setpoints

defined are accepted.

TRUEFALSE If no other basic function takes over the control of the drive, the drive

is brought to standstill, i. e. a change-over from the active function

state "Position follower active" via the "Drive is stopped" function

state back to the basic state "Drive at standstill" is carried out.

PF_dnPositionSet_p

C02688/1

| DINT

Position setpoint in [increments]

PF_dnSpeedAdd1_s

C02686

| DINT

Speed feedforward control value in [rpm]

PF_dnSpeedAdd2_n

C02687/1

| DINT

Additional speed setpoint in [%]

• 100 % ≡ Motor reference speed (

C00011

)

PF_dnAccAdd_x

C02685

| DINT

Motor acceleration

• For calculating the acceleration torque (for setting

C00276

= "0").

• Selection as speed variation/time in [rpm/s]

PF_dnTorqueAdd_n

C02687/2

| DINT

Additive torque feedforward control value in [%]

• 100 % ≡ motor reference torque (display in

C00057/2

).

Identifier

DIS code | data type

Value/meaning

PF_bEnabled

C02689/2

| BOOL

Status signal "Basic function is enabled"

TRUE The defined setpoints are accepted.

LS_PositionFollower

PF_bEnable

PF_dnPositionSet_p

PF_dnSpeedAdd1_s

PF_dnSpeedAdd2_n

PF_dnTorqueAdd_n

PF_bEnabled

M

Position
setpoint

PF_dnAccAdd_x

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