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SINUMERIK 840D sl. Service - Functions. Manual (2018-2020) - page 7

Feedrates

6.2 Path feedrate F

This corresponds to a reference radius of:

FGREF = 360 mm / (2π) = 57.296 mm

This default is independent of the active basic system

(MD10240 $MN_SCALING_SYSTEM_IS_METRIC) and the currently active G70/G71/G700/G710

setting.

Special features of the feedrate weighting for rotary axes in FGROUP:

Program code

N100 FGROUP(X,Y,Z,A)

N110 G1 G91 A10 F100

N120 G1 G91 A10 X0.0001 F100

The programmed F value in block N110 is evaluated as a rotary axis feedrate in degrees/min,

while the feedrate weighting in block N120 is either 100 inch/min or 100 mm/min, depending

on the current inch/metric setting.

NOTICE

Different systems of units

The FGREF factor also works if only rotary axes are programmed in the block. The normal F

value interpretation as degree/min applies in this case only if the radius reference corresponds

to the FGREF default:

• For G71/G710: FGREF[A]=57.296

• For G70/G700: FGREF[A]=57.296/25.4

Example

The following example is intended to demonstrate the effect of FGROUP on the path and path

feedrate. The variable $AC_TIME contains the time of the block start in seconds. It can only be

used in synchronized actions.

Program code

Comment

N100 G0 X0 A0

N110 FGROUP(X,A)

N120 G91 G1 G710 F100

; Feedrate = 100 mm/min or 100 degrees/min

N130 DO $R1=$AC_TIME

N140 X10

; Feedrate = 100 mm/min, path = 10 mm, R1 = approx. 6 s

N150 DO $R2=$AC_TIME

N160 X10 A10

; Feedrate = 100 mm/min, path = 14.14 mm, R2 = approx.

8 s

N170 DO $R3=$AC_TIME

N180 A10

; Feedrate = 100 degrees/min, path = 10 degrees, R3

= approx. 6 s

N190 DO $R4=$AC_TIME

N200 X0.001 A10

; Feedrate = 100 mm/min, path = 10 mm, R4 = approx. 6 s

N210 G700 F100

; Feedrate = 2540 mm/min or 100 degrees/min

N220 DO $R5=$AC_TIME

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Feedrates

6.4 Feedrate control

Channel-specific "Feed stop" for geometry axes in the JOG mode

The traversing motion of a specific geometry axis of the channel is stopped using the channel-

specific NC/PLC interface signals:

• DB21, ... DBX12.3 (feedrate stop, geometry axis 1)

• DB21, ... DBX16.3 (feedrate stop, geometry axis 2)

• DB21, ... DBX20.3 (feedrate stop, geometry axis 3)

The interface signals are only active in the JOG mode.

Axis-specific "Feedrate stop/spindle stop" for machine axes

Traversing motion of the machine axis is stopped using the axis-specific NC/PLC interface signal:

DB31, ... DBX4.3 (feedrate stop / spindle stop)

AUTOMATIC and MDI modes

The following applies in the AUTOMATIC and MDI modes:

• If the "Feed stop" is performed for a path axis, all the axes traversed in the current block and

all axes participating in the axis group are stopped.

• If the "Feed stop" is performed for a positioning axis, only this axis is stopped.

Thread cutting

Thread cutting

Effectiveness

G33, G34, G35

Effective

Notice

Contour deviation

G331, G332

Effective

G63

Axis: Effective

Spindle: Not effective

Axis-specific axis/spindle disable for machine axes

Traversing motion of the machine axis is stopped using the axis-specific NC/PLC interface signal:

DB31, ... DBX1.3 (axis/spindle disable)

6.4.2

Feedrate override via machine control panel

Function

With the "Feedrate override via machine control panel", the operator can locally increase or

decrease the path feedrate at the machine as a percentage with immediate effect. To achieve

this, the programmed feedrates are multiplied with the override values available at the NC/PLC

interface.

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6.4 Feedrate control

The feedrate can be changed axis-specifically for positioning axes.

The "Spindle override" can be used to change the spindle speed and the cutting rate (G96,

G961).

With a feedrate change, the axial acceleration and velocity limits are maintained. There are no

contour errors along the path.

The feedrate override can be changed separately for path and position axes.

The overrides influence the programmed values or the limits (e.g. G26, LIMS for spindle speed).

Channel-specific feedrate and rapid traverse override

For feedrate and rapid traverse override, dedicated enable signals and correction/offset factors

are available in the NC/PLC interface:

DB21, ... DBX6.7 (feedrate override active)

DB21, ... DBB4 (feedrate override)

DB21, ... DBX6.6 (rapid traverse override active)

DB21, ... DBB5 (rapid traverse override)

The override factors can be specified from the PLC either in the binary or Gray-coded format. The

format is communicated to the NC via the following machine data:

MD12020 $MN_OVR_FEED_IS_GRAY_CODE (path feedrate override switch Gray-coded)

MD12040 $MN_OVR_RAPID_IS_GRAY_CODE (rapid traverse override switch Gray-coded)

The following permanent assignment applies to binary code:

Binary code

Decimal

Override factor

00000000

0

0.00 ≙ 0%

00000001

1

0.01 ≙ 1%

00000010

2

0.02 ≙ 2%

00000011

3

0.03 ≙ 3%

00000100

4

0.04 ≙ 4%

01100100

100

1.00 ≙ 100%

11001000

200

2.00 ≙ 200%

With Gray coding, the override factors corresponding to the switch position must be entered in

the following machine data:

MD12030 $MN_OVR_FACTOR_FEEDRATE [<n>] (evaluation of the path feedrate override

switch)

MD12050 $MN_OVR_FACTOR_RAPID_TRA [<n>] (evaluation of the rapid traverse override

switch)

An active feedrate override acts on all path axes that are assigned to the current channel. An

active rapid traverse override has an effect on all the axes that are traversed with rapid traverse

and that are assigned to the current channel.

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Feedrates

6.4 Feedrate control

No rapid traverse override switch available

If there is no dedicated rapid traverse override switch, you can switch between rapid traverse

override and feedrate override. The override to be active can be selected via the PLC or operator

panel front. When rapid traverse override is active, the feedrate override values are limited to

100%.

• When the rapid traverse override is activated via the operator panel front, the basic PLC

program:

- Transfers the selection of the feedrate override for rapid traverse on the activation signal

for the rapid traverse override:

DB21, ... DBX6.6 = DB21, ... DBX25.3

- Transfers the feedrate override value in the rapid traverse value

DB21, ... DBB5 = DB21, ... DBB4

• When the rapid traverse override is selected via the PLC, the PLC user program:

- Must set the activation signal for the rapid traverse override:

DB21, ... DBX6.6 = 1

- Must transfer the feedrate override value in the rapid traverse override value:

DB21, ... DBB5 = DB21, ... DBB4

Effectiveness of the channel-specific feedrate and rapid traverse override:

• With active G33, G34, G35:

Not effective

• With active G63:

Not effective

• With active G331, G332:

Not effective

Reference velocity for path feedrate override

The reference velocity for the "Path feedrate override via machine control panel" can be set

differently to the standard feedrate (= programmed feedrate).

MD12082 $MN_OVR_REFERENCE_IS_MIN_FEED

Axis-specific feedrate override

An enable signal and a byte for the feedrate override factor are available in the NC/PLC interface

for each positioning axis:

DB31, ... DBX1.7 (override effective)

DB31, ... DBB0 (feedrate override)

The override factor can be specified from the PLC either in the binary or Gray-coded format. The

format is communicated to the NC via the following machine data:

MD12000 $MN_OVR_AX_IS_GRAY_CODE (axis feedrate override switch Gray-coded)

The following permanent assignment applies to binary code:

Binary code

Decimal

Override factor

00000000

0

0.00 ≙ 0%

00000001

1

0.01 ≙ 1%

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6.4 Feedrate control

Binary code

Decimal

Override factor

00000010

2

0.02 ≙ 2%

00000011

3

0.03 ≙ 3%

00000100

4

0.04 ≙ 4%

01100100

100

1.00 ≙ 100%

11001000

200

2.00 ≙ 200%

With Gray coding, the override factors corresponding to the switch position must be entered in

the following machine data:

MD12010 $MN_OVR_ FACTOR_AX_ SPEED [<n>] (evaluation of the axis feedrate override

switch)

Effectiveness of the axis-specific feedrate override:

• With active G33, G34, G35:

Not effective

• With active G63:

Not effective

(the override is set in the NC permanently to 100%)

• With active G331, G332:

Not effective

(the override is set in the NC permanently to 100%)

Spindle override

An enable signal and a byte for the spindle override factor are available in the NC/PLC interface

for each spindle:

DB31, ... DBX1.7 (override effective)

DB31, ... DBB19 (spindle override)

The override factor can be specified from the PLC either in the binary or Gray-coded format. The

format is communicated to the NC via the following machine data:

MD12060 $MN_OVR_SPIND_IS_GRAY_CODE (spindle override switch Gray-coded)

The following permanent assignment applies to binary code:

Binary code

Decimal

Override factor

00000000

0

0.00 ≙ 0%

00000001

1

0.01 ≙ 1%

00000010

2

0.02 ≙ 2%

00000011

3

0.03 ≙ 3%

00000100

4

0.04 ≙ 4%

01100100

100

1.00 ≙ 100%

11001000

200

2.00 ≙ 200%

With Gray coding, the override factors corresponding to the switch position must be entered in

the following machine data:

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6.4 Feedrate control

MD12070 $MN_OVR_FACTOR_SPIND_SPEED [<n>] (evaluation of the spindle override switch)

Effectiveness of the "spindle override":

• With active G33, G34, G35:

Effective

• With active G63:

Not effective

• With active G331, G332:

Effective

Reference of the spindle override

The spindle override can refer to the speed or the programmed speed limited by the machine or

setting data. The setting is realized via:

MD12080 $MN_OVR_REFERENCE_IS_PROG_FEED (override reference velocity)

Limiting the override factor

For binary-coded override factors, the maximum possible overrides for path feedrate, axis

feedrate and spindle speed can be limited:

MD12100 $MN_OVR_FACTOR_LIMIT_BIN (limit for binary coded override switch)

Override active

For overrides that have been enabled, the specified override values entered via the machine

control panel become immediately active in all operating modes and machine functions.

Override inactive

An override factor of 100% is internally effective if an override is not activated. The override

factor at the NC/PLC interface is not evaluated.

An exception is the zero setting for a binary interface and the 1st switch setting for a Gray-coded

interface. In these cases, the override factors entered at the NC/PLC interface are evaluated. For

a binary interface, the override factor is always 0%. For a Gray-coded interface, the value entered

in machine data for the 1st switch position value is output as override value. It should be

assigned the value "0".

6.4.3

Programmable feedrate override

Function

The "Programmable feedrate override" function can be used to change the velocity level of path

and positioning axes via the part program.

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Feedrates

6.4 Feedrate control

Programming

Syntax

Meaning

OVR=<value>

Feedrate change for path feedrate F

OVRA[<axis>=<value>

Feedrate change for positioning feedrate FA

The programmable range is between 0 and 200%.

Default setting: 100%

Effectiveness

The NC/PLC interface signals DB21, ... DBB6 (rapid traverse or feedrate override active) and

DB31, ... DBX1.7 (axis-specific override active) do not refer to the programmable feedrate

override. The programmable feedrate override remains active when these signals are

deactivated.

The effective override is calculated from the product of the "Programmable feedrate override"

and the "Feedrate override via machine control panel (Page 232)".

The default setting for the "Programmable feedrate override" is 100%.

The default setting is effective:

• If no feedrate override is programmed or

• After reset if the machine data:

MD22410 $MC_F_VALUES_ACTIVE_AFTER_RESET (F function is active even after reset)

is not set.

Note

OVR is not effective with G33, G34, G35.

6.4.4

Maximum programmable path velocity

With the function "Adapt maximum path velocity", the velocity of the path motion resulting from

the axial limitation values can be limited or reduced in critical program sections in the part

program. The velocity value to which the maximum path velocity is to be limited is programmed

via the address FLIM. The programmed value is always effective only until the next NC reset or

the end of the part program.

The override also affects the feedrate limited by FLIM. FLIM can therefore be moderately

exceeded using the override switch.

Effectiveness

The function is effective:

• In the AUTOMATIC operating modes

• Only on path axes

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Feedrates

6.4 Feedrate control

• Only for G94

• Not with rapid traverse

Note

The function "Adjust maximum path velocity" is only effective in combination with linear

feedrate G94. The function cannot be used in combination with other feed types (G93, G931,

G95, G96, G97, G971, G972).

Syntax

FLIM=<Value>

FLIM=-1

Meaning

FLIM

Address for adjusting the maximum path velocity

<Value>

Speed value to which the maximum path velocity should be limited

Data type:

REAL

Value range:

1.0 * 10^-6 ... 1.0 * 10³⁸

Unit:

mm/min or inch/min (depending on the active system of

units)

FLIM=-1

Cancels the limit programmed by FLIM=<Value>.

Example

Program code

Comment

N1000 G0 X0 Y0 F10000 G64 G710

N1100 G1 X20 RNDM=5

N1200 G1 Y20 FLIM=5000

; The axis slide in Y direction is moved at

max. 5 m/min.

N1300 G1 X0 Y40

; The path movement of the axis slides in X

direction and Y direction are moved at max.

5 m/min.

N1400 G1 Y0 FLIM=-1

; The axis slide in Y direction is moved at

10 m/min.

M30

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Feedrates

6.4 Feedrate control

6.4.5

Dry run feedrate

Function

The dry run feedrate is used when testing part programs without machining the workpiece in

order to allow the program or program sections to execute with an increased path feedrate, for

example.

Activation

The dry run feedrate can be selected in the automatic modes and activated from the PLC or the

operator panel front.

When activated from the operator panel front, the interface signal:

DB21, ... DBX24.6 (dry run feedrate selected)

is set and transferred from the basic PLC program to the interface signal:

DB21, ... DBX0.6 (activate dry run feedrate).

When selected on the PLC, the interface signal DB21, ... DBX0.6 (activate dry run feedrate) must

be set from the PLC user program.

Effectiveness

As long as the "Activate dry run feedrate" interface signal is set, instead of the programmed

feedrate, the feedrate value set via SD42100 DRY_RUN_FEED is effective in the way specified via

SD42101 $SC_DRY_RUN_FEED_MODE (see parameterization):

The dry run feedrate is always interpreted as linear feedrate (G94).

Parameterization

Activation of dry run feedrate

The time of activation depends on the setting in the machine data:

MD10704 $MN_DRYRUN_MASK (activation of dry run feedrate)

Value

Meaning

0

The dry run feedrate may only be switched on and off at the end of the block (default setting).

1

The dry run feedrate can also be activated during the program processing (in the part program

block).

Notice:

Activation during processing triggers an internal reorganization operation on the controller

which causes the axes to be stopped for a short time. This can affect the surface finish of the

workpiece being machined.

2

The dry run feedrate can be activated/deactivated at any time without the axes being stopped.

The function only takes effect with a block "later" in the program run.

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Feedrates

6.4 Feedrate control

Changing the dry run feedrate

The feedrate for the dry run is entered in the setting data:

SD42100 $SC_DRY_RUN_FEED (dry run feedrate)

The setting data can be changed via the operator panel front in the "Parameters" operating area.

If the selection has been accepted by the NC, the following NC/PLC interface signal is set:

DB21, ... DBX318.6 (dry run feedrate active)

"DRY" is displayed in the operator panel front status bar to indicate an active dry run feedrate if:

• Selection took place during the program stop at the end of a block or

• The machine data MD10704 $MN_DRYRUN_MASK was set to "1" during the program

execution

Mode of operation of the dry run feedrate

The mode of operation of the dry run feedrate entered in SD42100 can be set via the setting data:

SD42101 $SC_DRY_RUN_FEED_MODE

Value

Meaning

0

The programmed feedrate is compared to the dry run feedrate in SD42100 and then travers-

ing is performed with the higher of the two feedrates (default setting).

1

The programmed feedrate is compared to the dry run feedrate in SD42100 and then travers-

ing is performed with the lower of the two feedrates.

2

The dry run feedrate entered in SD42100 takes effect directly, irrespective of the programmed

velocity.

3 - 9

Reserved

10

As for configuration 0, except for thread cutting (G33, G34, G35) and tapping (G331, G332,

G63). These functions are executed as programmed.

11

As for configuration 1, except for thread cutting (G33, G34, G35) and tapping (G331, G332,

G63). These functions are executed as programmed.

12

As for configuration 2, except for thread cutting (G33, G34, G35) and tapping (G331, G332,

G63). These functions are executed as programmed.

6.4.6

Multiple feedrate values in one block

Function

The function "Multiple feedrate values in one block" can be used to activate six different feedrate

values of an NC block, a dwell time or a retraction motion-synchronously, depending on the

external digital and/or analog inputs.

When the input for the sparking out time or retraction path is activated, the distance-to-go for

the path axes or the particular single axis is deleted and the dwell time or retraction is started.

The retraction is started within an IPO cycle.

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Feedrates

6.4 Feedrate control

Signals

The input signals are combined in one input byte for the function. A fixed functional assignment

applies within the byte.

Table 6-1

Input byte for the "Multiple feedrates in one block" function

Bit

7

6

5

4

3

2

1

0

Input no.

I7

I6

I5

I4

I3

I2

I1

I0

Feedrate address

F7

F6

F5

F4

F3

F2

ST

SR

I7 to I2: Activation of feedrates F7 to F2

E1: Activation of the dwell time ST/STA (in seconds)

I0: Activation of the retraction motion SR/SRA

Priority of the signals

The signals are scanned in ascending order starting at I0. Therefore, the retraction motion (SR)

has the highest priority and the feedrate F7 the lowest priority.

SR and ST end the feedrate motions that were activated with F2 to F7.

SR also ends ST, i.e. the complete function.

The signal with the highest priority determines the current feedrate.

The response to loss of the respective highest-priority input (F2 - F7) can be defined with the

machine data:

MD21230 $MC_MULTFEED_STORE_MASK (storage behavior for the "Multiple feedrate values in

one block" function)

Bit

Value

Meaning

2 ... 7

0

With the loss of the respective highest-priority input, the associated feedrate is not

retained (default setting).

1

Set bit 2 to 7 ensures that the associated feedrate (F2 to F7) that was selected by the

respective highest-priority input signal is also retained when there is a loss of the

input signal and a lower-priority input is active.

The end-of-block criterion is satisfied when:

• The programmed end position is reached

• The retraction motion ends (SR)

• The dwell time elapses (ST)

Hardware assignment

The input byte for the "Multiple feedrate values in one block" function can be assigned a

maximum of two digital input bytes or comparator input bytes of the NC I/O:

MD21220 $MC_MULTFEED_ASSIGN_FASTIN (assignment of the input bytes of the NC I/O for

"Multiple feedrate values in one block"), bits 0 ... 15

The input bits can also be inverted:

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Feedrates

6.4 Feedrate control

MD21220 $MC_MULTFEED_ASSIGN_FASTIN, bit 16 ... 31

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Signal assignment for the "Multiple feedrate values in one block" function

The assignment of the digital input bytes and parameterization of the comparators are described

in:

Further information:

Function Manual Basic Functions; Digital and analog NC I/O

Programming

Path motion

The path feedrate is programmed under the address F and remains valid until an input signal is

present. This value acts modally.

F2=... to F7=... can be used in addition to the path feedrate to program up to six further

feedrates in the block. The numerical expansion indicates the bit number of the input that

activates the feedrate when changed:

Example:

F7=1000

;7 corresponds to input bit 7

The programmed values act non-modally. The path feedrate programmed under F applies in the

next block.

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6.4 Feedrate control

Note

POS instead of POSA

If feedrates, sparking out time (dwell time) or return path are programmed for an axis on

account of an external input, this axis must not be programmed as POSA axis (positioning axis

over multiple blocks) in this block.

Note

Status query

It is also possible to poll the status of an input for synchronous commands of various axes.

Note

LookAhead

Look Ahead is also active for multiple feedrates in one block. In this way, the current feedrate can

be restricted by the Look Ahead value.

Application

The "Multiple feedrate values in one block" function is used primarily for grinding, but is not

restricted to it.

Typical applications are, for example:

• Analog or digital calipers

Depending on whether the external inputs are analog or digital, various feedrate values, a

dwell time and a retraction path can be activated. The limit values are defined via the setting

data.

• Switching from infeed to working feedrate via proximity switch

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6.4 Feedrate control

Example

Internal grinding of a conical ring, where the actual diameter is determined using calipers and,

depending on the limits, the feedrate value required for roughing, finishing or fine finishing is

activated. The position of the calipers also provides the end position. Thus, the block end

criterion is determined not only by the programmed axis position of the infeed axis but also by

the calipers.

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6.4.7

Fixed feedrate values

Function

The "Fixed feedrate values" function can be used to activate fixed feedrates (max. four) defined

via the machine data instead of the programmed feedrate or the configured JOG velocities.

The function is available in AUTOMATIC and JOG mode.

Behavior in AUTOMATIC mode

The contour travels at the activated fixed feedrate, instead of using the programmed feedrate.

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Feedrates

6.4 Feedrate control

6.4.9

Feedrate for chamfer/rounding FRC, FRCM

The machining conditions can change significantly during surface transitions to chamfer/

rounding. Hence, the chamfer/rounding contour elements require dedicated, optimized

feedrate values to achieve the desired surface quality.

Function

The feedrate for chamfer/rounding can be programmed via NC addresses.

Programming

Syntax:

... FRC/FRCM=<value>

Meaning:

FRC:

Non-modal feedrate for chamfer/rounding

FRCM:

Modal feedrate for chamfer/rounding

<value>:

The feedrate is interpreted according to the active feedrate type:

• G94, G961, G971:

Feedrate in mm/min or inch/min or ^o/min

• G95, G96, G97:

Revolutional feedrate in mm/rev or inch/rev

Note

FRC is only effective if a chamfer/rounding is programmed in the block or if RNDM has been

activated.

FRC overwrites the F or FRCM value in the current block.

The feedrate programmed under FRC must be greater than zero.

FRCM=0 activates the feedrate programmed under F for chamfering/rounding.

Parameterization

Assignment of the chamfer/rounding to the previous or following block

The feedrate type (G94, G95, G96, G961 ... ) and therefore the conversion to the internal format

must be consistent within the block for F and FRC/FRCM. In this context, the following machine

data must be taken into account:

MD20201 $MC_CHFRND_MODE_MASK (chamfer/rounding behavior)

Bit

Value

Meaning

0

0

The technology of the chamfer/rounding (feedrate, feedrate type, M commands, etc.) is

determined by the following block (default setting).

1

The technology of the chamfer/rounding is determined by the previous block (recom-

mended setting).

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6.4 Feedrate control

Writing ACC and reading $AA_ACC in a part program:

ACC[X]=50

; writing

RO=$AA_ACC[X]

; reading

IF (RO <> $MA_MAX_AX_ACCEL[X] * 0.5)

; checking

SETAL(61000)

ENDIF

Writing ACC and reading $AA_ACC in a synchronized action:

WHEN TRUE DO ACC[X]=25 R0=$AA_ACC[X]

; writing and reading

G4 F1

IF (RO <> $MA_ MAX_AX_ACCEL[X] * 0.25)

; checking

SETAL(61001)

ENDIF

end-of-motion criterion for single axes

Similar to the block change criterion for path interpolation (G601, G602, G603) the end-of-

motion criterion for traversing motion of individual axes can be programmed in part programs /

synchronized actions:

Program command

End-of-motion criterion

FINEA[<axis>]

"Exact stop fine"

COARSEA[<axis>]

"Exact stop coarse"

IPOENDA[<axis>]

"Interpolator stop" (IPO stop)

The most recently programmed value is kept after the end of program or NC reset.

The effective end-of-motion criterion can be read using the axis-specific system variable

$AA_MOTEND.

Note

Depending on whether the system variable $AA_MOTEND is read in the part program or

synchronized action, it contains the value for the NC axes or the main run axes.

Example:

Part program:

N80 G01 POS[X]=100 FA[X]=1000 ACC[X]=90 COARSEA[X]

Synchronized action:

N100 EVERY $A_IN[1] DO POS[X]=50 FA[X]=2000 ACC[X]=140 IPOEN-

DA[X]

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Feedrates

6.6 Data lists

6.6

Data lists

6.6.1

Machine data

6.6.1.1

NC-specific machine data

Number

Identifier: $MN_

Description

10651

IPO_PARAM_THREAD_NAME_TAB

Name of the interpolation parameters for convex

threads

10704

DRYRUN_MASK

Activation of dry run feedrate

10710

PROG_SD_RESET_SAVE_TAB

Setting data to be updated

11410

SUPPRESS_ALARM_MASK

Mask for suppressing special alarms

11550

STOP_MODE_MASK

Defines the stop behavior

12000

OVR_AX_IS_GRAY_CODE

Axis feedrate override switch, Gray-coded

12010

OVR_FACTOR_AX_SPEED

Evaluation of the axis feedrate override switch

12020

OVR_FEED_IS_GRAY_CODE

Path feedrate override switch, Gray-coded

12030

OVR_FACTOR_FEEDRATE

Evaluation of the path feedrate override switch

12040

OVR_RAPID_IS_GRAY_CODE

Rapid traverse override switch, Gray-coded

12050

OVR_FACTOR_RAPID_TRA

Evaluation of the rapid traverse override switch

12060

OVR_SPIND_IS_GRAY_CODE

Spindle override switch, Gray-coded

12070

OVR_FACTOR_SPIND_SPEED

Evaluation of the spindle override switch

12080

OVR_REFERENCE_IS_PROG_FEED

Override reference velocity

12082

OVR_REFERENCE_IS_MIN_FEED

Defines the reference of the path override

12090

OVR_FUNCTION_MASK

Selection of override specifications

12100

OVR_FACTOR_LIMIT_BIN

Limit for binary-coded override switch

12200

RUN_OVERRIDE_0

Traversing with override 0

12202

PERMANENT_FEED

Fixed feedrates for linear axes

12204

PERMANENT_ROT_AX_FEED

Fixed feedrates for rotary axes

6.6.1.2

Channel-specific machine data

Number

Identifier: $MC_

Description

20100

DIAMETER_AX_DEF

Geometry axes with transverse axis functions

20150

GCODE_RESET_VALUES

Basic setting of the G groups

20172

COMPRESS_VELO_TOL

Maximum permissible deviation from path feed for com-

pression

20200

CHFRND_MAXNUM_DUMMY_BLOCKS

Empty blocks with phase/radii

20201

CHFRND_MODE_MASK

Behavior for chamfer/rounding

20750

ALLOW_GO_IN_G96

G0 logic for G96, G961

21200

LIFTFAST_DIST

Traversing path for fast retraction from the contour

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Feedrates

6.6 Data lists

Number

Identifier: $MC_

Description

21220

MULTFEED_ASSIGN_FASTIN

Assignment of input bytes of NC I/O for "Multiple fee-

drate values in one block"

21230

MULTFEED_STORE_MASK

Storage behavior for the "Multiple feedrate values in one

block" function

22240

AUXFU_F_SYNC_TYPE

Output timing of F functions

22410

F_VALUES_ACTIVE_AFTER_RESET

F function active after reset

6.6.1.3

Axis/Spindle-specific machine data

Number

Identifier: $MA_

Description

30300

IS_ROT_AX

Rotary axis/spindle

32000

MAX_AX_VELO

Maximum axis velocity

32060

POS_AX_VELO

Initial setting for positioning axis velocity

32300

MAX_AX_ACCEL

Axis acceleration

32320

DYN_LIMIT_RESET_MASK

Reset behavior of dynamic limits

34990

ENC_ACTIVAL_SMOOTH_TIME

Smoothing time constant for actual values

35100

SPIND_VELO_LIMIT

Maximum spindle speed

35130

GEAR_STEP_MAX_VELO_LIMIT

Maximum speed of gear stage

35140

GEAR_STEP_MIN_VELO_LIMIT

Minimum speed of gear stage

35160

SPIND_EXTERN_VELO_LIMIT

Spindle-speed limitation via PLC

6.6.2

Setting data

6.6.2.1

Channel-specific setting data

Number

Identifier: $SC_

Description

42000

THREAD_START_ANGLE

Start angle for thread

42010

THREAD_RAMP_DISP

Acceleration behavior of axis when thread cutting

42100

DRY_RUN_FEED

Dry run feedrate

42101

DRY_RUN_FEED_MODE

Dry run feed mode

42110

DEFAULT_FEED

Default value for path feed

42600

JOG_FEED_PER_REV_SOURCE

Revolutional feedrate control in the JOG mode

43300

ASSIGN_FEED_PER_RES_SOURCE

Revolutional feedrate for positioning axes/spindles

Axes and spindles

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6.6 Data lists

6.6.2.2

Axis/spindle-specific setting data

Number

Identifier: $SA_

Description

43210

SPIND_MIN_VELO_G25

Programmed spindle speed limiting G25

43220

SPIND_MAX_VELO_G26

Programmed spindle speed limiting G26

43230

SPIND_MAX_VELO_LIMS

Spindle speed limiting with G96

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Transverse axes

7

7.1

Function

Transverse axis

Within the framework of "turning" technology, the transverse axis refers to the machine axis that

travels perpendicular to the axis of symmetry of the spindle, in other words, to longitudinal axis

Z.

[

7UDQVYHUVH D[LV

0

:

]

/RQJLWXGLQDO D[LV

Figure 7-1

Position of the transverse axis in the machine coordinate system

Geometry axis as transverse axis

Every geometry axis of a channel can be defined as a transverse axis.

For the geometry axis as a transverse axis, the following functions can be simultaneously or

separately permitted and activated:

• Programming and display in the diameter

• Reference axis for constant cutting speed G96/G961/G962

Several transverse axes in the channel

The introduction several transverse axes in the channel involves a functional decoupling of

diameter programming and reference axis for G96/G961/G962. Diameter programming and

reference axis for G96/G961/G962 can be active for different transverse axes (see table below).

Programming and display

Reference axis for

in the diameter

G96 / G961 / G962

Permissible axis type:

Geometry axis

Linear channel

Geometry axis

axes

Selection in the channel:

one

m of 3

m of n

one

one of 3

Specific effect:

Channel

Axis

Channel

Machine data:

MD20100

MD30460

MD20100

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Transverse axes

7.1 Function

Programming and display

Reference axis for

in the diameter

G96 / G961 / G962

Programming:

DIAM*

SCC[<Axis>]

channel-specific modal

channel-specific modal

G group 29

Reference axis for G96/G961/G962

Acceptance during axis re-

DIAM*A[<Axis>]

placement:

axis-specific modal

Axis-specific non-modal dia-

DAC, DIC; RAC, RIC

metral/radius program-

blockwise axis-specific only programming

ming:

DIAM*: DIAMOF, DIAMON, DIAM90, DIAMCYCOF

DIAM*A[<Axis>]: DIAMOFA[<Axis>], DIAMONA[<Axis>], DIAM90A[<Axis>], DIACYCOFA[<Axis>], DIAMCHANA[<Axis>]

<Axis>: Axis name for geometry, channel or machine axis name

Note

Rotary axes are not permitted to serve as transverse axes.

Diameter-related data

DIAMON/DIAMONA[<Axis>]

After activation of the diameter programming with DIAMON/DIAMONA[<Axis>] (see

"Programming (Page 267)"), the following data refer to diameter dimensions:

• Display data of transverse axis in the workpiece coordinate system:

- Setpoint and actual position

- Distance-to-go

- REPOS offset

• "JOG" mode:

- Increment (INC) through incremental manual handwheel traversing (depending on the

active MD)

• Part program programming:

- End positions, independent of reference mode (G90 / G91)

- Interpolation parameters of circular-path programming (G2 / G3) if these are

programmed with part program instruction AC absolute.

• Actual values read with reference to the workpiece coordinate system (WCS):

- $AA_MW[<transverse axis>]

System variable of the measuring functions MEAS (measuring with delete distance-to-go)

and MEAW (measuring without delete distance-to-go)

- $P_EP[<transverse axis>]

- $AA_IW[<transverse axis>]

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7.2 Parameterization

Extended functions for data that is always radius-related:

The following applies for PLC axes, via FC18 or axes controlled exclusively from the PLC:

• The dimension for PLC axes in the radius also applies to several transverse axes with diameter

function and is independent of channel-specific or axis-specific diameter programming.

• In the JOG mode (Inc) a PLC axis is subordinate to the channel status. If diameter

programming is active and MD20624 $MC_HANDWH_CHAN_STOP_COND bit 15 = 0, only

half the path of the specified increment is traversed.

7.2

Parameterization

Defining a geometry axis as a transverse axis

Defining a geometry axis as a transverse axis in the channel is realized using machine data:

MD20100 $MC_DIAMETER_AX_DEF (geometry axis with transverse axis function)

Example

MD20100 $MC_DIAMETER_AX_DEF="X" ; geometry axis X is the transverse axis in the channel.

For this axis, diameter programming and assigning a constant cutting speed with G96 / G961 /

G962 are both permitted.

Several transverse axes in the channel

Defining additional transverse axes in the channel, for which the functionality of the axis-

specific diameter programming is permitted, is performed using the machine data:

MD30460 BASE_FUNCTION_MASK.Bit 2 = <value>

Bit

Value

Meaning

2

0

Axis-specific diameter programming is not permitted.

1

Axis-specific diameter programming is permitted.

Note

The setting MD30460 bit 2 = 1 is only possible for linear axes.

Constraints

In a channel, a transverse axis can be defined as channel-specific (MD20100) and axis-specific

(MD30460, bit 2) axis at the same time. The channel-specific machine data has the higher

priority.

With MD20100, the following channel-specific functions are assigned to the transverse axis

during the run-up

The following axis-specific basic position is assigned to the transverse axis during the power-up

of the NC: "Transfer of the diameter programming channel status" DIAMCHANA[<axis>]

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7.2 Parameterization

With the release of the axis-specific diameter programming (MD30460, bit 2 = 1), the following

axis-specific operations can be used at the user's end:

• DIAMONA (axis-specific modal diameter programming: ON)

• DIAMOFA (axis-specific modal diameter programming: OFF)

• DIAM90A (axis-specific modal diameter programming for G90 and AC, radius programming

for G91 and IC)

• DIACYCOFA (axis-specific modal diameter programming: OFF in cycles)

• DIAMCHANA (transfer of the diameter programming channel status)

Dimensions for tool parameters

With the following channel-specific machine data, the following tool parameters can be

activated as diameter values for all of the transverse axes defined in the channel:

MD20360 $MC_TOOL_PARAMETER_DEF_MASK.<Bit> = <value>

MD20360 $MC_TOOL_PARAMETER_DEF_MASK

Bit

Value

Meaning

1

1

Transverse axis tool length as a diameter

2

1

Alarm for wear or tool length as a diameter and plane change

3 ¹⁾

0

Work offset $P_EXTFRAME and frames

For transverse axes, work offsets in frames are always calculated as radius values.

1

The work offset (WO) in frames in the transverse axis as a diameter

The frame stores the work offsets internally as a radius value. There is no conversion

during a change of diameter to radius programming or vice versa.

4

1

Preset value as a diameter

5 ¹⁾

0

External work office (axis overlay)

For transverse axes, the external work offset is always calculated as a radius value.

1

External WO of the transverse axis as a diameter

There is no conversion during a change of diameter to radius programming or vice

versa.

6

1

Actual values of the transverse axis as a diameter

7

1

Display of actual values of the transverse axis as a diameter value

8 ¹⁾

1

Display of remaining path in WCS always as a radius

9 ¹⁾

For all of the transverse axes for which it is set that the specifications of the handwheel are path

specifications (MD11346 $MN_HANDWH_TRUE_DISTANCE == 1), the following applies:

0

Half of the path of the specified handwheel increment is traveled if channel-specific or

axis-specific diameter programming is active for this axis.

1

Half of the path of the specified handwheel increment is always traveled.

10

1

Tool portion of an active tool carrier that can be oriented if no tool is active

11

1

Evaluation of $TC_DP6 as a diameter

12

1

Evaluation of $TC_DP15 as wear of the tool diameter

13 ¹⁾

1

When jogging around circles, the circle center point coordinate is always a radius

value, see SD42690 $SC_JOG_CIRCLE_CENTRE

14 ¹⁾

1

For cycle masks, the absolute values of the transverse axis are always meant as the

radius.

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Transverse axes

7.2 Parameterization

MD20360 $MC_TOOL_PARAMETER_DEF_MASK

Bit

Value

Meaning

15

1

Incremental values of the transverse axis for cycle masks as diameters

1) The function is dependent upon the settings in MD20100 $MC_DIAMETER_AX_DEF and MD30460

$MA_BASE_FUNCTION_MASK, bit 2

Behavior during manual handwheel traversing

The behavior during manual handwheel traversing (MD11346

$MN_HANDWH_TRUE_DISTANCE == 1 or 3) of a transverse axis while diameter programming is

active can be adjusted with the following machine data:

MD20624 $MC_HANDWH_CHAN_STOP_COND.Bit 15 = <value>

Bit

Value

Meaning

15

0

Only the half path of the specified increment is traveled.

1

The specified increment is traveled completely.

Displaying position values in the diameter

Position values of transverse axes are always displayed as diameter values, if:

MD27100 $MC_ABSBLOCK_FUNCTION_MASK, bit 0 = 1

Channel-specific basic position after power up, reset

The channel-specific basic position after power up or channel reset or the part program end of

G group 29 (DIAMON, DIAM90, DIAMOF, DIAMCYCOF) is defined by the machine data MD20110

$MC_RESET_MODE_MASK.

MD20110 $MC_RESET_MODE_MASK, bit 0 = 0:

• Power-up: Basic position according to MD20150 $MC_GCODE_RESET_VALUE

• Channel reset or part program end: Basic position according to MD20150

$MC_GCODE_RESET_VALUES

MD20110 $MC_RESET_MODE_MASK, bit 0 = 1:

• After power-up: Basic position according to MD20150 $MC_GCODE_RESET_VALUE

• After channel reset or part program end: Basic position according to MD20152

$MC_GCODE_RESET_MODE

The user can set the respective desired status via an event-driven program call (ProgEvent).

If the basic position after the power-up is G96 / G961 / G962, a transverse axis must be defined

with MD20100 $MC_DIAMETER_AX_DEF, otherwise the alarm 10870 is displayed.

To ensure that the reference axis for G96 / G961 / G962 is retained during a reset, end of part

program or start of part program, the following setting must be made:

• Channel reset or part program end: MD20110 $MC_RESET_MODE_MASK, bit 18 = 1

• Part program start: MD20112 $MC_START_MODE_MASK, bit 18 = 1

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Transverse axes

7.3 Programming

A reference axis for G96 / G961 / G962 can also be assigned without the parameterization of a

transverse axis in MD20100 via SCC[AX]. For this scenario, the constant cutting speed must not

already be activated with G96. For additional information, see the following:

Further information: Programming Manual NC Programming

7.3

Programming

Transverse axes can be programmed with respect to both diameter and radius. Generally, they

are diameter-related, i.e. programmed with doubled path dimension so that the corresponding

dimensional information can be transferred to the part program directly from the technical

drawings.

[

7UDQVYHUVH D[LV

0

:

'

'

]

/RQJLWXGLQDO D[LV

Figure 7-2

Transverse axis with diameter information (D1, D2)

Switching the diameter programming on/off

Channel-specific diameter programming

The activating or deactivating of the diameter programming is done via the modally active part

program statements of the G group 29:

• DIAMON: Diameter programming ON

• DIAMOF: Diameter programming OFF, in other words, radius programming ON

• DIAM90: Diameter or radius programming depending on the reference mode:

- Diameter programming ON in connection with absolute dimensioning G90

- Radius programming ON in connection with incremental dimensioning G91

• DIAMCYCOF: Radius programming for G90 and G91 ON, for the HMI, the last active G

command of this group remains active

Reference is made exclusively to the transverse axis of the channel.

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Transverse axes

7.6 Data lists

Program code

Comment

N40 DIAMONA[Y]

;Y axis-specific modal diameter programming

N50 Y250 X300

;Dimensions: X and Y in diameter

N60 SETM(1)

;Synchronous marker 1

N70 WAIT(1,2)

;wait for synchronous marker 1 in channel 2

Channel 2

N50 DIAMOF

;channel 2 no diameter programming active

N100 WAIT(1,1)

;wait for synchronous marker 1 in channel 1

N110 GETD(Y)

;Axis replacement direct Y

N120 Y100

;Y is the channel-specific diameter programming

;subordinated in channel 2; i.e. dimension in the radius

7.6

Data lists

7.6.1

Machine data

7.6.1.1

Channelspecific machine data

Number

Identifier: $MC_

Description

20050

AXCONF_GEOAX_ASSIGN_TAB[n]

Assignment of geometry axis to channel axis

20060

AXCONF_GEOAX_NAME_TAB[n]

Channel axis name in the channel

20100

DIAMETER_AX_DEF

Geometry axis with transverse axis function

20110

RESET_MODE_MASK

Definition of the control basic setting after power-up and RESET /

part program end

20112

START_MODE_MASK

Definition of the control basic setting for NC start

20150

GCODE_RESET_VALUES[n]

Basic setting of the G groups

20152

GCODE_RESET_MODE[n]

G command basic setting at RESET / part program end

20360

TOOL_PARAMETER_DEF_MASK

Definition of tool parameters

20624

HANDWH_CHAN_STOP_COND

Definition of the behavior of the manual handwheel traversing

27100

ABSBLOCK_FUNCTION_MASK

Parameterize block display with absolute values

7.6.1.2

Axis/spindlespecific machine data

Number

Identifier: $MA_

Description

30460

BASE_FUNCTION_MASK

Axis functions

Axes and spindles

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Positioning axes

8.2 Own channel, positioning axis or concurrent positioning axis

together and do not reach their end point simultaneously (no direct time relationship, see also

Section "Motion behavior and interpolation functions (Page 278)").

Positioning axis types and block change

The block change time depends on the programmed positioning axis type (refer also to Section

"Block change (Page 290)"):

Type

Description

1

The block change occurs when all path and positioning axes have reached their programmed

end point.

2

The block change occurs when all path axes have reached their programmed end point.

With positioning axis type 2, it is possible to approach the programmed end point across several

block limits.

3

It is possible to set the block change within the braking ramp of the single axis interpolation if

the criteria for the motion end and the block change are fulfilled for the path interpolation.

Motion synchronization

Positioning axes permit movements to be activated from the same machining program and such

movements to be synchronized at block limits (type 1) or at explicit points by means of a WAITP

command (type 2).

Motion end criterion for block change in the brake ramp

For single-axis interpolation, it is also possible to set another end-of-motion criterion for the

block change in the braking ramp.

Traverse path axes in G0 as positioning axis

Each path axis can be traversed as positioning axis in rapid traverse movement (G0). Thus all

axes travel to their end point independently.

In this way, two sequentially programmed X and Z axes are treated like positioning axes in

conjunction with G0. The block change to axis Z can be initiated by axis X as a function of the

braking ramp time setting (100-0%). Axis Z starts to move while axis X is still in motion. Both axes

approach their end point independently of one another.

Axis types

Positioning axes can be linear axes and rotary axes.

Positioning axes can also be configured as indexing axes.

Independence of positioning axes and path axes

The mutual independence of positioning and path axes is ensured by the following measures:

• No shared interpolation

• Each positioning axis has a dedicated axis interpolator

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Positioning axes

8.4 Positioning axis dynamic response

Revolutional feedrate

In JOG mode the behavior of the axis/spindle also depends on the setting of SD41100

JOG_REV_IS_ACTIVE (revolutional feedrate when JOG active).

• If this setting data is active, an axis/spindle is always moved with revolutional feedrate

MD32050 $MA_JOG_REV_VELO (revolutional feedrate with JOG) or MD32040

$MA_JOG_REV_VELO_RAPID (revolutional feedrate with JOG with rapid traverse overlay) as

a function of the master spindle.

• If the setting data is not active, the behavior of the axis/spindle depends on SD43300

$SA_ASSIG_FEED_PER_REV_SOURCE (revolutional feedrate for positioning axes/spindles)

• If the setting data is not active, the behavior of a geometry axis on which a frame with

rotation is effective depends on the channel-specific setting data SD42600

$SC_JOG_FEED_PER_REV_SOURCE. (In the operating mode JOG, revolutional feedrate for

geometry axes on which a frame with rotation is effective.)

Maximum axial acceleration

With positioning axis motions, one of the two following maximum values is effective depending

on the set positioning axis dynamic response mode:

• MD32300 $MA_MAX_AX_ACCEL [0] (maximum axial acceleration for path motions in the

dynamic response mode DYNNORM)

• MD32300 $MA_MAX_AX_ACCEL [1] (maximum axial acceleration for path motions in the

dynamic response mode DYNPOS)

The positioning axis dynamic response mode is set in the NC-specific machine data:

MD18960 $MN_POS_DYN_MODE = <mode>

<mode>

Meaning

0

Effective maximum axial acceleration: MD32300 $MA_MAX_AX_ACCEL[ 0 ]

1

Effective maximum axial acceleration: MD32300 $MA_MAX_AX_ACCEL[ 1 ]

Maximum axial jerk

When traversing positioning axes with active jerk limitation, the value from one of the following

machine data takes effect as maximum axial jerk:

• MD32430 $MA_JOG_AND_POS_MAX_JERK (maximum axial jerk for positioning axis

motions)

• MD32431 $MA_MAX_AX_JERK [0] (maximum axial jerk for path motions in the dynamic

response mode DYNNORM)

• MD32431 $MA_MAX_AX_JERK [1] (maximum axial jerk for path motions in the dynamic

response mode DYNPOS)

The machine data to be used is determined by the set positioning axis dynamic response mode:

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Positioning axes

8.5 Programming

MD18960 $MN_POS_DYN_MODE = <mode>

<mode>

Meaning

The following is effective as maximum axial jerk for positioning axis motions:

0

MD32430 $MA_JOG_AND_POS_MAX_JERK

With active G75 (fixed-point approach): MD32431 $MA_MAX_AX_JERK[0]

1

MD32431 $MA_MAX_AX_JERK[1]

8.5

Programming

8.5.1

General

Note

For programming positioning axes, please observe the following documentation:

Further information

See Feedrates (Page 195) and Spindles (Page 377)

Note

The maximum number of positioning axes that can be programmed in a block is limited to the

maximum number of available channel axes.

Definition

Positioning axes are defined using the following parameters:

• Axis type: Positioning axis type 1, type 2 or type 3

• End point coordinates (in absolute dimensions or in incremental dimensions)

• Feedrate for linear axes in [mm/min], for rotary axes in [degrees/min]

Example: Positioning axis type 1

Program code

Comment

POS[Q1]=200 FA[Q1]=1000

;Axis Q1 with feedrate 1000 mm/min at Position 200.

Example: Positioning axis type 2

Program code

Comment

POSA[Q2]=300 FA[Q2]=1500

;Axis Q2 with feedrate 1500 mm/min at Position 300.

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Positioning axes

8.6 Block change

The following settings are possible:

Value

Description

0

No revolutional feed rate selected

>0

The revolutional feed rate is derived from the round axis/spindle with the machine axis index

specified here.

-1

The revolutional feed rate is derived from the master spindle of the channel in which the axis/

spindle is active.

-2

The revolutional feed rate is derived from the rotary axis/spindle with the machine axis index

0.

-3

The revolutional feed rate is derived from the master spindle of the channel in which the axis/

spindle is active. No revolutional feed rate is selected if the master spindle is at a standstill.

8.6

Block change

Since path and positioning axes are interpolated separately, they reach their programmed end

positions at different instants in time. If path and positioning axes are programmed in a block

together, then the block change behavior depends on the programmable type of positioning

axes.

Type 1: Block-related positioning axis

Properties:

• The block change is performed as soon as all path and positioning axes have reached their

respective programmed end-of-motion criterion:

- Path axes: G601, G602, G603

- Positioning axes: FINEA, COARSA, IPOENDA

• Programming the positioning axis: POS[<axis>]

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8.6 Block change

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Figure 8-1

Block change for path axis and positioning axis type 1

Note

Continuous path mode

Continuous path mode across block limits (G64) is only possible if the positioning axes reach

their end-of-motion criterion before the path axes (in the diagram above, this is not the case).

Type 2: Modal positioning axis (across blocks)

Properties:

• The block change is performed as soon as all path axes have reached their programmed end-

of-motion criterion (G601, G602, G603)

• Programming the positioning axis: POSA[<axis>]

• The positioning axis traverses beyond the block limits to its programmed end position. It is

not permissible that the positioning axis is programmed again before reaching its end-of-

motion criterion.

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291

Positioning axes

8.6 Block change

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Figure 8-2

Block change for path axis and positioning axis type 2

8.6.1

Settable block change time

Type 3: Conditional block-related positioning axis

Properties:

• The block change is performed as soon as all path and positioning axes have reached their

respective programmed end-of-motion criterion:

- Path axes: G601, G602, G603

- Positioning axes: IPOBRKA

• Programming the positioning axis:

- N(x) IPOBRK(<axis>[,<time>]) ;own block

- N(x+1) POS[<axis>]

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292

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Positioning axes

8.6 Block change

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Figure 8-3

Block change for path axis and positioning axis type 3

Block change criterion: "Braking ramp" (IPOBRKA)

If, when activating the block change criterion "brake ramp", a value is programmed for the

optional parameter <time>, then this becomes effective for the next positioning motion and is

written into the setting data synchronized to the main run. If no value is specified for the block

change instant in time, then the actual value of the setting data is effective.

SD43600 $SA_IPOBRAKE_BLOCK_EXCHANGE

The time at which the block change can be realized is specified as a percentage of the braking

ramp:

•

100% = start of the braking ramp

•

0% = end of the braking ramp, the same significance as block change criterion IPOENDA

Programming

IPOBRKA(<axis>[,<time>])

IPOBRKA:

Block change criterion: Deceleration ramp

Effectiveness:

Modal

<axis>:

Channel axis name (X, Y,

)

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293

Positioning axes

8.6 Block change

Block change criterion "braking ramp" in synchronized action

In the technology cycle:

Program code

Comment

FINEA

;End-of-motion criterion: "Exact stop fine"

N10 POS[X]=100

;The technology cycle block change is realized if the X axis

has reached position 100 and "exact stop fine" is reached.

N20 IPOBRKA(X,100)

;Activate block change criterion "braking ramp",

100% = start of the braking ramp.

N30 POS[X]=200

;Technology cycle block is changed as soon as axis X starts

to brake.

N40 POS[X]=250

;X axis does not brake at position 200, but rather continues

to traverse to position 250. As soon as the X axis starts to

brake, the block change takes place in the technology cycle.

N50 POS[X]=0

;X axis brakes and returns to position 0,

the block change is realized at position 0 and "exact stop

fine".

N60 M17

Block change criterion "braking ramp" and "tolerance window" in the part program

Program code

Comment

;Default setting effective.

N10 POS[X]=100

;Positioning motion from X to position 100.

;Block change criterion: "Exact stop fine"

N20 IPOBRKA(X,100)

;Block change criterion: "Braking ramp", 100% = start of the

braking ramp.

N21 ADISPOSA(X,1,0.5)

;Tolerance window: 1 = set position, tolerance = 0.5

N30 POS[X]=200

;The block is changed as soon as axis X starts to brake.

N40 POS[X]=250

;Axis X no longer brakes at position 200, but rather contin-

ues to traverse to position 250. As soon as the axis starts

to brake, the block changes.

N50 POS[X]=0

;Axis X brakes and returns to position 0,

the block change is realized at position 0 and "exact stop

fine".

N60 X10 F100

N70 M30

Block change criterion "braking ramp" and "tolerance window" in synchronized action

In the technology cycle:

Program code

Comment

FINEA

;End-of-motion criterion: "Exact stop fine"

N10 POS[X]=100

;The technology cycle block change is realized if the X axis

has reached position 100 and "exact stop fine" is reached.

N20 IPOBRKA(X,100)

;Activate block change criterion "braking ramp", 100% =

start of the braking ramp.

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