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Festo Контроллер двигателя SFC-ST User Manual

Page 51

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3. Control block

3−7

Festo P.BE−SFC−DC−PB−S7−E N en 0604NH

Parameter

Description

Data
type

DeclarĆ
ation

Start_Task

INPUT

BOOL

Start current task.
With a

rising edge the current nominal values will be

transferred and positioning started (record 0 = reference
travel).

Operation_Mode

INPUT

BOOL

Selecting the operating mode
FALSE: Record Select
TRUE:

Direct mode

Absolute_Relative INPUT

BOOL

Positioning mode
FALSE: Nominal value is absolute.
TRUE:

Nominal value is relative to last nominal value

Clear_Remaining_
Position

INPUT

BOOL

Deletes the unfinished positioning task after a stop.
In the Halt" status, a positive signal edge causes the
positioning task to be deleted and transfer to the Ready"
status.

Jog_pos

INPUT

BOOL

Jogging positive
The drive moves at the specified speed in the direction of
larger actual values, providing the bit is set. The movement
begins with the rising edge and ends with the falling edge.

Jog_neg

INPUT

BOOL

Jogging negative
The drive moves at the specified speed in the direction of
smaller actual values, see Jog_neg".

Teach_Actual_
Value

INPUT

BOOL

Teach th ecurrent position, see appendix A.2.4.
The Teach target is defined with PNU 520.

Record_No

INPUT

INT

Preselect of record number for Record Select
(1 ... 31, 0 = reference travel).

Set_Value_
Velocity

INPUT

INT

Preselect of speed for direct mode
(in % of the maximum speed)

Set_Value_
Position

INPUT

DINT

Preselect of position for direct mode:
ć position in measured unit, depends on position factor.

Tab. 3/2:

Input parameter SFC_DC_CTRL"