Parameters

Channel parameters

P-CHAN-00057

Setting the default measurement type

Parameter

messtyp

Description

Seven different measurement types are available. The required measurement type can be set with this element.

Data type

UNS16

Data range

1: Measurement travel (G100) with at least one axis,
measurement feed rate programmable via F word

2: Measurement travel (G100) with exactly one axis;
measurement feed rate is specified in the ACHS_MDS list

3: Measurement travel (G100) with at least one axis,
measurement feed rate programmable via F word
optionally with continued travel up to destination point

4: Measurement travel (G100) only with the maximum of three main axes,
measurement feed rate programmable via F word

5: Interruptible measurement travel (G310) with at least one axis,
measurement feed rate programmable via F word

6: Interruptible measurement travel (G310) with at least one SERCOS axis,
measurement feed rate programmable via F word

7: Measurement travel by moving on a fixed stop with at least one axis,
Measurement feed programmable through F-Word.

Dimension

Translatory: -

Rotatory: -

Default

-

Remarks

The measurement type can be modified at any time in the NC program with #MEAS MODE.

Axis parameters

P-AXIS-00086

Measuring probe stroke

Parameter

kenngr.hub_messtaster

Description

As the stroke of mechanical measuring sensors is limited, when the measuring sensor is actuated a check is made as to whether a delay via the ramps chosen in the axis parameter list is sufficient on the basis of the acceleration ramp and the current feed rate. Therefore, the P-AXIS-00086 parameter defines the maximum permitted deceleration distance for measurement.

Data type

UNS32

Data range

0<P-AXIS-00086 <MAX(UNS32)

Dimension

Translatory: 0.1 µm

Rotatory: 0.0001°

Default

-

Remarks

A buffer exists between the interpolator and the position controller to calculate the parameters for feed forward control of axes. This results in a dead time between calculation of a setpoint by the interpolator and its execution in the position controller. In the worst case, an error can be produced during measurement travel because the interpolator, which monitors the stroke of the measuring probe, ignores the distance components in the buffer. This can be prevented by enlarging the actual measuring probe stroke.

P-AXIS-00113

Measured signal edge

Parameter

kenngr.mess_neg_flanke

Description

Definition of the edge of the measured signal where the counter performs the latching operation.

Data type

BOOLEAN

Data range

0: Latching if positive measured signal edge

1: Latching if negative measured signal edge

Dimension

Translatory: -

Rotatory: -

Default

-

Remarks

-

P-AXIS-00114

Measurement travel offset

Parameter

kenngr.mess_offset

Description

The measurement travel offset P-AXIS-00114 specifies by which distance further than the destination position programmed in the measurement block the axis may travel if the measurement probe has not yet been actuated up to the programmed destination point. An error message is issued if a measurement signal can still not be recorded within the measurement offset.

Data type

UNS32

Data range

0<P-AXIS-00114 <MAX(UNS32)

Dimension

Translatory: 0.1µm

Rotatory: 0.0001°

Default

-

Remarks

This parameter is used only for measurement in accordance with measurement type 2.

P-AXIS-00115

Measured signal via axis-specific control bit pattern

Parameter

kenngr.mess_signal_achs_steuer

Description

To make it possible to take external measured signals into account as well, one bit in the axis-specific control bit pattern is treated as the measured signal. This can be activated via P-AXIS-00115.

Data type

BOOLEAN

Data range

0: No evaluation of the measured signal via the axis-specific control bit pattern

1: Evaluation of the measured signal via the axis-specific control bit pattern

Dimension

Translatory: -

Rotatory: -

Default

-

Remarks

The following measurement methods are permitted depending on the drive type

 

Measurement method

 

P-AXIS-00117
(mess_signal_taster)

P-AXIS-00116
(mess_signal_sercos)

P-AXIS-00115
(mess_signal_achs_steuer)

Drive simulation

X

-

X

Conventional
drive interface

X

-

X

SERCOS drive interface

X

X

X

P-AXIS-00116

Measurement with SERCOS drives

Parameter

kenngr.mess_signal_sercos

Description

With the aid of P-AXIS-00116, you define whether the measured signal is to read in via the SERCOS interface.

Data type

BOOLEAN

Data range

0: Read measured signal via control bit pattern and hardware interface
(see P-AXIS-00115 or P-AXIS-00117)

1: Read measured signal via the SERCOS interface

Dimension

Translatory: -

Rotatory: -

Default

-

Remarks

-

P-AXIS-00117

Measuring probe signal via hardware interface

Parameter

kenngr.mess_signal_taster

Description

Use of the NC kernel's hardware interface is selected via P-AXIS-00117.

Data type

BOOLEAN

Data range

0: Do not read the measuring probe signal via the controller's hardware interface

1: Read the measuring probe signal via the controller's hardware interface

Dimension

Translatory: -

Rotatory: -

Default

-

Remarks

-

P-AXIS-00118

Measurement axis

Parameter

kenngr.messachse

Description

P-AXIS-00118 defines whether an axis can be involved in measurement travel.

Data type

BOOLEAN

Data range

0: Axis cannot be used as measured axis

1: Axis can be used as measured axis

Dimension

Translatory: -

Rotatory: -

Default

-

Remarks

-

P-AXIS-00215

Feed rate for measurement in accordance with measurement type 2

Parameter

kenngr.vb_messen

Description

For measurement type 2 P-AXIS-00215 is used as feed for the measurement movement.

Data type

UNS32

Data range

0<P-AXIS-00215 <MAX(UNS32)

Dimension

Translatory:

Rotatory: 0,001°/s

Default

-

Remarks

Only used for measurement type 2.

P-AXIS-00060

Number of used real time bits for SERCOS drives

Parameter

kenngr.echtzeit_bit_nr

Description

With this parameter the assignment of the realtime status and control bits for SERCOS drives is done.

The assignment is according to the following table:

P-AXIS-00060

Controlbits

Statusbits

 

Measurement
Enable

Measurement
done

Measurement equipment

Actuated

0,
no entry

Realtime

control bit 1

P-AXIS-00106

Realtime
status bit 2

1

Realtime

control bit 1

Realtime
status bit 1

Realtime
status bit 2

2

Realtime

control bit 2

Realtime
statusbit 2

Realtime
statusbit 1

Data type

UNS08

Data range

0≤ P-AXIS-00060 ≤ 2

Dimension

-

-

Default

0

Remarks

It is recommended to use either 1 or 2 as value for P-AXIS-00060.

P-AXIS-00257

Measurement is done in the CNC

Parameter

kenngr.probing_signal_via_plc

Description

Latching the measured value is done in the CNC, the probing signal is handed over to the CNC via the PLC interface.

Data type

BOOLEAN

Data range

0 : Use drive based measurement

1 : Use CNC based measurement.

Dimension

Translatory:

Rotatory: -

Default

0

Remarks

-

P-AXIS-00330

Measuring with movement on a fixed stop

Parameter

kenngr.meas_signal_fixed_stop

Description

With this parameter the measurement signal source "Fixed stop" is enabled.

Data type

BOOLEAN

Data range

0: No measuring on a fixed stop possible

1: Enabling of measuring on a fixed stop

Dimension

Translatory: -

Rotatory: -

Default

-

Remarks

The user has to ensure, that during the movement on a fixed stop in the drives involved a torque limitation is active and that the velocity is low enough.

All other measurement signal sources (e.g. P-AXIS-00116 (kenngr.mess_signal _sercos)) have to be deselected.

P-AXIS-00331

Limit for position lag

Parameter

kenngr.fixed_stop_pos_lag_limit

Description

This parameter specifies the limit for the position lag. After exceeding this limit the fixed stop is detected and the measuring position is taken over.

Data type

UNS32

Data range

0 < P-AXIS-00331 < MAX(UNS32)

Dimension

Translatory: 0,1 µm

Rotatory: 0,0001°/s

Default

-

Remarks

-

P-AXIS-00332

Number of position controller cycles

Parameter

kenngr.fixed_stop_nbr_cycles

Description

This parameter defines the number of position control cycles for the waiting time after exceeding of the given position lag limit P-AXIS-00331, before the measurement value is determined. The counting is started again, if during this time the limit is fallen below.

Data type

UNS32

Data range

0 < P-AXIS-00332 < MAX(UNS32)

Dimension

Translatory: -

Rotatory: -

Default

-

Remarks

-