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5function blocks – Lenze E94A User Manual

Page 431

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Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05

431

5

Function blocks

5.114

L_PosSequencer - sequence control

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Inputs

Identifier/data type

Information/possible settings

bStart

BOOL

Start/continue positioning program

• Display parameter: C04690/2

FALSETRUE The positioning program is started/continued.

• Counters and outputs are not automatically reset by this.

• A positioning program interrupted by bBreak is continued with

the sequence step.

• The started positioning program is processed until the end, even

if bStart is reset to FALSE.

bPause

BOOL

Interrupt the current step of the positioning program

• Display parameter: C04690/3

TRUE

• An active positioning is interrupted.

• The drive is stopped with the current profile deceleration.

• A deceleration override is taken into account.

• The sequence of an active timing element is stopped.

• A "Standby" action is not interrupted, i.e. the output

bEnableFollower remains TRUE.

FALSE

• The interrupted positioning is completed.

• The distance of the profile already covered is considered here.

• Positioning processes with final speeds are not continued if the

final speed cannot be reached anymore.

• The deceleration of the stopped timing element is continued with

the residual time.

bNextStep*

BOOL

From library V02.00.xx.xx

Cancel current step and go to next step

FALSETRUE The current positioning program step is cancelled immediately and

the positioning program is continued with the next step listed in the

sequence table.

bCancel

BOOL

Cancel the current step and jump to the step defined in C04504

• Display parameter: C04690/6

FALSETRUE The current step of the positioning program is cancelled immediate-

ly and the positioning program is continued with the step defined in

C04504.

bBreak

BOOL

Interrupt positioning program

• This input is intended for a linkage with drive-relevant status signals (e.g. for con-

troller inhibit or quick stop).

• If the interruption is cancelled again by a reset to FALSE, a new FALSE/TRUE edge

is required at bStart so that the positioning program can be continued with the

sequence step.

• Display parameter: C04690/4

FALSE Condition for the program start via bStart.

TRUE The active positioning program is interrupted.

• If positioning is active, the drive is braked to standstill with the

deceleration time for stop.

• The system block LS_Positioner is deactivated.

• The system block LS_Homing is deactivated.

• The setpoint followers are deactivated.

• The digital output signals keep their state.