Content      ..     8      9      10      11     ..

SINUMERIK 840D sl. Service - Functions. Manual (2018-2020) - page 10

Spindles

12.4 Configurable gear adaptations

The motor accelerates with the oscillation acceleration to the oscillation speed in the specified

setpoint direction of rotation:

• MD35410 $MA_SPIND_OSCILL_ACCEL (acceleration when oscillating)

• MD35400 $MA_SPIND_OSCILL_DES_VELO (oscillation speed)

Reversing the direction of rotation

The oscillation times and switching over the direction of rotation must be realized in the PLC user

program.

End of oscillation mode

On termination of oscillation mode, the spindle returns to the open-loop control mode and

automatically changes to the mode defined by SPCON or SPCOF.

All gear-specific limit values (min./max. speed, etc.) correspond to the parameterized values of

the actual gear stage.

Block change

Processing of the active NC program is stopped if the spindle was switched into the oscillation

mode (DB31, ... DBX82.3 = 1 (switchover gear stage)).

Processing of the NC program is continued if the gear stage has been switched over (DB31, ...

DBX16.3 == 1 (gear stage has been switched over).

4QFFE

SQN

%#

ܵ %#9

HFBS JT TXJUDIFE PWFS

#MPDL

DIBOHF

5JNF

T

Figure 12-5

Block change following oscillation mode

Axes and spindles

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

439

Spindles

12.4 Configurable gear adaptations

Example of the signal flow

%#

ܵ %#9

DPOUSPM NPEF

%#

ܵ %#9

PTDJMMBUJPO NPEF

1SPHSBNNFE 4 WBMVF

%#

ܵ %#9

HFBS JT TXJUDIFE PWFS

%#

ܵ %#9

TXJUDI PWFS HFBS

%#

ܵ %#9

TFU HFBS TUBHF

%#

ܵ %#9

TQJOEMF JO TFUQPJOU SBOHF

%#

ܵ %#9

TQJOEMF TUBUJPOBSZ

%#

ܵ %#9

BDUVBM HFBS TUBHF

%#

ܵ %#9

PTDJMMBUJPO FOBCMF

(FBS TUBHF FOHBHFE

NFDIBOJDBM

*OUFSOBM GFFE EJTBCMF

4QJOEMF TQFFE

5

5

U

U

U

U

U

t₁:

As a result of the newly programmed S value S1300 in the NC program, the NC identifies the

necessity to switch over the gear stage (1st → 2nd gear stage), and requests the enable from the

PLC:

• NC → PLC: DB31, ... DBX82.3 = 1 (switchover gear stage)

The NC locks program processing (internal feed rate disable *)

Axes and spindles

440

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

Spindles

12.4 Configurable gear adaptations

GSC at fixed position

Typical time sequence for the gear stage change at fixed position:

%#

ܵ %#9

QPTJUJPOJOH NPEF

%#

ܵ %#9

DPOUSPM NPEF

%#

ܵ %#9

PTDJMMBUJPO NPEF

1SPHSBNNFE 4 WBMVF

%#

ܵ %#9

HFBS JT TXJUDIFE PWFS

%#

ܵ %#9

TXJUDI PWFS HFBS

%#

ܵ %#9

TFU HFBS TUBHF " $

%#

ܵ %#9

TQJOEMF JO TFUQPJOU SBOHF

%#

ܵ %#9

TQJOEMF TUBUJPOBSZ

%#

ܵ %#9

BDUVBM HFBS TUBHF " $

%#

ܵ %#9

PTDJMMBUJPO TQFFE

TU HFBS TUBHF FOHBHFE

NFDIBOJDBM

OE HFBS TUBHF FOHBHFE

NFDIBOJDBM

*OUFSOBM GFFE EJTBCMF

4QJOEMF TQFFE

U

%#

ܵ %#9

FYBDU TUPQ ꫼OF

U

U

U

U

U

t₁:

With the programming of S1300, NC detects a new gear stage (second gear stage), sets IS

DB31, ... DBX84.5 (positioning mode) and blocks processing for the next part program block (=

internal feed disable*).

Axes and spindles

444

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

Spindles

12.4 Configurable gear adaptations

Possible reasons:

• Only one optimization (K_V, feedforward control, filter) to suit a gear stage can be found in the

servo parameter set for axis mode (index 0). The machine data for this parameter set should

not be rewritten.

• There is only one mechanical transmission ratio which, unlike the others, possesses little or

no backlash compensation. The spindle can only follow a path motion or transformations

(e.g. TRANSMIT) together with other axes in this gear stage.

Function

If the function is activated, a predefined gear stage is loaded automatically during transition to

axis mode.

The gear stage change is integrated into the M70 process and occurs after spindle deceleration

and before the loading of the servo parameter set with index 0 (note

MD35590 $MA_PARAMSET_CHANGE_ENABLE!).

The typical dialog between NC and PLC which occurs during gear stage changes is executed in

a similar way to programmed gear stage changes (M41 ... M45) performed.

Requirements

Gear stage changes during transition to axis mode require general enabling of the gear stage

change via the machine data:

MD35010 $MA_GEAR_STEP_CHANGE_ENABLE (assign parameters to the gear stage change).

MD35090 $MA_NUM_GEAR_STEPS (number of gear stages set up)

Activation/deactivation

The function is activated/deactivated via the machine data:

MD35014 $MA_GEAR_STEP_USED_IN_AXISMODE (gear stage for axis mode in M70)

Value

Meaning

0

No implicit gear stage change occurs in M70. The current gear stage is retained (default

setting!).

1 ... 5

A gear stage change to gear stage 1 ... 5 occurs during the processing of M70.

Supplementary conditions

Gear stage change at fixed position (MD35010 $MA_GEAR_STEP_CHANGE_ENABLE = 2)

The "gear stage change at fixed position" function is supported. The sequence in M70 is then

extended by the time it takes to position the spindle. The position is approached at the current

gear stage.

Transition to axis mode without programming M70

The control system detects the transition to axis mode automatically from the program

sequence (see "Implicit transition to axis mode (Page 401)") and generates the requisite M70

sequence, including the gear stage change, within the control system.

Axes and spindles

448

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

Spindles

12.4 Configurable gear adaptations

Transition to axis mode with FC 18

Implicit gear stage change is not supported in transition to axis mode with the FC 18 ("Start

axis"). This requires the right gear stage to be engaged by the PLC application before switching

to axis mode. The gear stage change is also possible with the FC 18 ("Start gear stage change").

Change from axis mode to spindle mode

When changing from axis mode to spindle mode, the gear stage loaded with M70 remains

activated. The gear stage which is activated in spindle mode prior to M70 is not automatically

loaded again. The servo parameter set is changed from parameter set 1 (index 0) to parameter

sets 2 ... 6 (index 1 ... 5) to suit the gear stage (with

MD35590 $MA_PARAMSET_CHANGE_ENABLE < 2).

Example

Gear stage 4 should be loaded in the case of spindle transition to axis mode.

Configuration: MD35014 $MA_GEAR_STEP_USED_IN_AXISMODE[<spindle name>] = 4

Program code

Comment

N05 M3 S1000

N10 G1 X100 F1000

N15 M70

; Gear stage 4 is loaded.

N20 POS[C]=77

N25 ...

Note

MD35014 can be changed by the "Activate machine data" function. Thus, the gear stage being

loaded can still be changed in the part program before transition to axis mode, if necessary.

12.4.10

Suppression of the gear stage change for DryRun, program test and SERUPRO

Function

For test feed rate (DryRun), program test and SERUPRO, normally, a gear stage change is not

required. This is the reason that it can be suppressed for these functions. The corresponding

configuration is realized with bits 0 ... 2 in machine data:

MD35035 $MA_SPIND_FUNCTION_MASK

Dry run feedrate (DryRun)

Bit 0 = 0

When the DryRun function is active - for part program blocks - gear stages are changed

with M40, M41 to M45, or programming via FC18 and synchronized actions.

Axes and spindles

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

449

Spindles

12.4 Configurable gear adaptations

Bit 0 = 1

When the DryRun function is active - for part program blocks - a gear stage change is

suppressed with M40, M41 to M45, programming via FC18 and synchronized actions.

Program test and SERUPRO

Bit 1 = 0

For active program test / SERUPRO function - for part program blocks - gear stages are

selected with M40, M41 to M45, programming via FC18 and synchronized actions.

Bit 1 = 1

For active program test / SERUPRO function - for part program blocks - a gear stage change

is suppressed with M40, M41 to M45, programming via FC18 and synchronized actions.

DryRun, program testing and SERUPRO

Bit 2 = 0

Gear stage change for programmed gear stage is not performed subsequently on REPOS

after deselection of functions DryRun, Program Test and SERUPRO.

Bit 2 = 1

Gear stage change for programmed gear stage is performed after deselection of functions

DryRun and SERUPRO if possible.

Sequence

If a gear stage change is suppressed, if necessary, the interpolator will limit the programmed

spindle speed to the permissible speed range of the active gear stage.

NC/PLC interface signals DB31, ... DBX83.2 (setpoint speed increased) and DB31, ... DBX83.1

(setpoint speed limited) generated as a result of this limit are suppressed.

Monitoring by the PLC program is not necessary during DryRun and in dry run feedrate.

When the gear stage change is suppressed, no new gear stage setpoint (DB31,... DBX82.0-82.2)

is output to the PLC.

The gear stage change request DB31, ... DBX82.3 (change gear) is also suppressed.

This ensures that no gear stage change information has to be processed by the PLC program.

Determining the last active gear stage

System variable $P_GEAR returns the gear stage programmed in the part program (which may

not have been output to the PLC).

System variable $AC_SGEAR can be used to read the last active gear stage from the part

program, synchronized actions and at the user interface.

Behavior after deselection

The DryRun function can be deselected within a running part program. Once it has been

deselected, the correct gear stage requested by the part program must be identified and

selected.

It cannot be assured that the remainder of the part program will run without errors until the

correct gear stage has been activated. Any necessary gear stage change is performed in the

system REPOS started on deselection if the spindle is in speed control mode. A complete gear

stage change dialog takes place with the PLC and the last programmed gear stage is activated.

If, for REPOS, there is a mismatch between the gear stage programmed in the part program and

the actual gear stage supplied via the NC/PLC interface, then no gear stage change takes place.

Axes and spindles

450

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

Spindles

12.5 Additional adaptations to the spindle functionality that can be configured

MD35035 $MA_SPIND_FUNCTION_MASK, <bit> = <value>

<Bit>

<Val-

Meaning

ue>

0 ... 2

1

Activation: Gear stage change behavior for test feedrate (DryRun), program test and

SERUPRO

See "Suppression of the gear stage change for DryRun, program test and SERUPRO

(Page 449)".

4

1

Spindle speed S..., programmed in the NC program, is taken after

SD43200 $SA_SPIND_S. This also applies to speed setpoint signals via the PLC user

program with FC18 and synchronized actions.

See "Function (Page 462)".

5

0

When traversing the spindle in the JOG mode, the currently valid speed setpoint

applies.

See SD41200 $SN_JOGSPIND_SET_VELO

1

When traversing the spindle in the JOG mode, the speed parameterized in

SD43200 $SA_SPIND_S is effective.

8

1

Cutting velocity S..., programmed in the NC program is taken after

SD43202 $SA_SPIND_CONSTCUT_S.

This also applies to cutting velocity setpoint signals via the PLC user program with

FC18.

See "Function (Page 462)".

10

0

SD 43206 $SA_SPIND_SPEED_TYPE is not changed by the NC program or channel

settings.

1

If the spindle is a master spindle, then the feedrate type (active value of the 15th G

group) is taken after SD43206 $SA_SPIND_SPEED_TYPE.

If the spindle is not a master spindle, then SD43206 $SA_SPIND_SPEED_TYPE remains

unchanged.

See "Function (Page 462)".

12

Effectiveness of the spindle override for a zero mark search, M19, SPOS, SPOSA = 0:

0

The spindle override is not active.

1

The spindle override is active.

19

Response regarding an implicit auxiliary function output M19:

0

AND MD20850 $MC_SPOS_TO_VDI == 0:

For SPOS and SPOSA, auxiliary function M19 is not output to the PLC.

1

For SPOS and SPOSA, auxiliary function M19 is output to the PLC.

The address extension corresponds to the spindle number.

See "Positioning mode (Page 383)"

20

Response regarding an implicit auxiliary function output M70:

0

An implicit auxiliary function M70 is not output to the PLC.

Note: A programmed auxiliary function M70 is always output to the PLC.

1

When transitioning from spindle to axis operation, auxiliary function M70 is output to

the PLC.

The address extension corresponds to the spindle number.

See "Implicit transition to axis mode (Page 401)".

Axes and spindles

452

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

Spindles

12.6 Selectable spindles

<Bit>

<Val-

Meaning

ue>

22

Deactivating the axis-specific NC/PLC interface signal DB31, ... DBX17.6 (invert M3/M4) to

reverse the direction of rotation of the spindle for tapping without compensating check

(G331, G332).

0

Interface signal DB31, ... DBX17.6 active.

Note

• Standard case: The value of the interface signal is determined when the NC

program starts. When the interface signal subsequently changes, this has no ef-

fect within the NC program.

• Special case: If a change to the interface signal must be taken into account while

the NC program is being executed, then this must be implemented as part of the

application engineering. See Chapter "Special case: Direction of rotation reversal

via NC/PLC interface signal in the NC program (Page 409)".

1

Interface signal DB31, ... DBX17.6 not active.

12.6

Selectable spindles

Function

Regarding channel spindles, the "Switchable spindles" function allows general NC programs to

be written, which can be used in different channels. The logical spindle number used in the NC

program is converted to the physical spindle number using a spindle number converter. This

means for the same spindle number programmed in the NC program, different physical spindles

(machine axes) can be traversed in different channels.

The physical spindles loaded or unloaded by "axis replacement" no longer have to be specified

explicitly in the part program.

Machine data

Physical spindle number

Each spindle must be assigned to a machine axes using a unique configurable number, the

physical spindle number:

MD35000 $MA_SPIND_ASSIGN_TO_MACHAX[<machine axis>] = <physical spindle number>

Activation of the spindle number converter

The spindle number converter is activated on a channel-for-channel basis using machine data:

MD20092 $MC_SPIND_ASSIGN_TAB_ENABLE = TRUE

Axes and spindles

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

453

Spindles

12.7 Programming

12.7

Programming

12.7.1

Programming from the part program

Programming statements

Statement

Description

SETMS:

Master spindle is the spindle specified in the following machine data:

MD20090 $MC_SPIND_DEF_MASTER_SPIND (position of deletion of the master spindle in

the channel)

SETMS(<n>):

The spindle with the number <n> is the master spindle

(may differ from the initial setting:

MD20090 $MC_SPIND_DEF_MASTER_SPIND).

The master spindle must be defined for the following functions:

• G95:

Revolutional feedrate

• G96 S.../G961

Constant cutting rate in m/min or feet/min

S...:

• G97/G971:

Cancel G96/G961 and freeze last spindle speed

• G63:

Tapping with compensating chuck

• G33/G34/G35:

Thread cutting

• G331/G332:

Tapping without compensating chuck

• G4 S...:

Dwell time in spindle revolutions

• Programming M3, M4, M5, S, SVC, SPOS, M19, SPOSA, M40, M41 to M45, and WAITS

without entering the spindle number

The current master spindle setting can be retained via RESET / part program end and part

program start. The setting is done via the machine data:

• MD20110 $MC_RESET_MODE_MASK

• MD20112 $MC_START_MODE_MASK

M3:

Clockwise spindle rotation for the master spindle

M<n>=3:

Clockwise spindle rotation for spindle number <n>

M4:

Counter-clockwise spindle rotation for the master spindle

M<n>=4:

Counter-clockwise spindle rotation for spindle number <n>

M5:

Spindle stop without orientation for the master spindle

M<n>=5:

Spindle stop without orientation for spindle number <n>

S...:

Spindle speed in rpm for the master spindle

S<n>=...:

Spindle speed in rpm for spindle number <n>

SVC=...:

Cutting rate in m/min or feet/min for the master spindle

SVC[<n>]=...:

Cutting rate in m/min or feet/min for the spindle <n>

SPOS=...:

Spindle positioning for the master spindle

SPOS[<n>]=...:

Spindle positioning for spindle number <n>

The block change is only performed when the spindle is in position.

Axes and spindles

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

457

Spindles

12.7 Programming

Statement

Description

SPOSA=...:

Spindle positioning for the master spindle

SPOSA[<n>]=...:

Spindle positioning for spindle number <n>

The block change is executed immediately. Spindle positioning continues, regardless of

further part program processing, until the spindle has reached its position.

SPOS=DC(...):

The direction of motion is retained for positioning while in motion and the position ap-

proached. When positioning from standstill, the position is approached via the shortest

SPOS[<n>]=DC(...):

path.

SPOSA=DC(...):

SPOSA[<n>]=DC(...):

SPOS=ACN(...):

The position is always approached with negative direction of motion. If necessary, the

direction of motion is inverted prior to positioning.

SPOS[<n>]=ACN(...):

SPOSA=ACN(...):

SPOSA[<n>]=ACN(...):

SPOS=ACP(...):

The position is always approached with positive direction of motion.

If necessary, the direction of motion is inverted prior to positioning.

SPOS[<n>]=ACP(...):

SPOSA=ACP(...):

SPOSA[<n>]=ACP(...):

SPOS=IC(...):

The travel path is specified. The direction of travel is determined from the sign in front of

the travel path. If the spindle is in motion, the direction of travel is inverted as necessary to

SPOS[<n>]=IC(...):

allow traversing in the programmed direction.

SPOSA=IC(...):

If the zero mark is crossed during traversing, the spindle is automatically synchronized with

SPOSA[<n>]=IC(...):

the zero mark if no reference is available or if a new one has been requested via an interface

signal.

M19:

Positioning the master spindle to the position in SD43240

M[<n>]=19:

Positioning spindle number <n> to the position in SD43240

The block change is only performed when the spindle is in position.

Bring spindle to standstill and activate position control, select zero parameter set, activate

axis mode

M70:

for the master spindle

M<n>=70:

for spindle number <n>

Spindle position control ON

SPCON:

for the master spindle

SPCON(<n>):

for spindle number <n>

SPCON(<n>,<m>):

for spindle numbers <n> and <m>

Spindle position control OFF, activate speed control mode

PCOF:

for the master spindle

SPCOF(<n>):

for spindle number <n>

SPCOF(<n>,<m>):

for spindle numbers <n> and <m>

FPRAON(S<n>):

Revolutional feedrate for spindle <n> ON, derived from the master spindle

FPRAON(S<n>,S<m>):

Revolutional feedrate for spindle <n> ON, derived from spindle <m>

The revolutional feedrate value must be specified with FA[S<m>].

FPRAOF(S<n>):

Revolutional feedrate for spindle <n> OFF

C30 G90 G1 F3600

Rotary axis C (spindle in axis mode) travels to the position 30 degrees at a speed of 3600

degrees/min = 10 rpm

Axes and spindles

458

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

Spindles

12.7 Programming

Statement

Description

Programmable minimum spindle speed limitation

G25 S...:

for the master spindle

G25 S<n>:

for spindle number <n>

Programmable maximum spindle speed limitation

G26 S...:

for the master spindle

G26 S<n>:

for spindle number <n>

Programmable maximum spindle speed limitation with G96, G961, G97

LIMS=...:

for the master spindle

LIMS[<n>]=...:

for spindle number <n>

VELOLIM[<spindle>]=...:

Programmable limiting of the configured gear stage dependent maximum speed

Using machine data (MD30455 $MA_MISC_FUNCTION_MASK, bit 6), when programming

in the part program, it can be set as to whether VELOLIM is effective independent of

whether used as spindle or axis (bit 6 = 1) - or is able to be programmed separately for each

operating mode (bit 6 = 0). If they are to be separately effective, then the selection is made

using the name when programming:

• Spindle name S<n> for spindle operating modes

• Axis name, e.g. "C", for axis operation

The correction value refers to:

• Spindles in axis operation (if MD30455 Bit 6 = 0):

To the configured maximum axis velocity (MD32000 $MA_MAX_AX_VELO).

• Spindles in spindle or axis operation (if MD30455 bit 6 = 1):

To the maximum speed of the active gear unit stage

(MD35130 $MA_GEAR_STEP_MAX_VELO_LIMIT[<n>])

WAITS:

Synchronization command for master spindle

The subsequent blocks are not processed until the spindle programmed in a previous NC

block with SPOSA has reached its position (with exact stop fine).

WAITS after M5: Wait until the spindle is stationary.

WAITS after M3/M4: Wait until the spindle reaches its setpoint speed.

WAITS(<n>):

Synchronization command for spindle number <n>

WAITS(<n>,<m>):

Synchronization command for spindle numbers <n> and <m>

FA[S<n>]:

Programming of positioning speed (axial feed) for spindle <n> in [deg/min]

With FA[S<n>]=0, the configured value takes effect once more:

MD35300 $MA_SPIND_POSCTRL_VELO

OVRA[S<n>]:

Programming of the axial override value for spindle <n> in [%]

ACC[S<n>]:

Programming of the axial acceleration capacity for spindle <n> in [%]

Axes and spindles

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

459

Spindles

12.7 Programming

Statement

Description

SPI(<n>):

With SPI(<n>) a spindle number is converted into the data type AXIS according to ma-

chine data

MD35000 $MA_SPIND_ASSIGN_TO_MACHAX[ ]

SPI is used if axis functions are to be programmed with the spindle.

The following commands are possible with SPI:

• Frame commands:

- CTRANS()

- CFINE()

- CMIRROR()

- CSCALE()

• Velocity and acceleration values for following spindles:

- FA[SPI(<n>)]

- ACC[SPI(<n>)]

- OVRA[SPI(<n>)]

• System variables:

- $P_PFRAME[SPI(<n>),TR]=<value>

- $P_PFRAME=

CTRANS(X,<axis value>,Y,<axis value>,SPI(<n>),<axis value>)

- $P_PFRAME=

CSCALE(X,<scale>,Y,<scale>,SPI(<n>),<scale>)

- $P_PFRAME=CMIRROR(S<n>,Y,Z)

- $P_UBFR=CTRANS(A,10) : CFINE (19,0.1)

M40:

Automatic gear stage selection for the master spindle

M<n>=40:

Automatic gear stage selection for spindle number <n>

M41 to M45:

Select gear stage 1 to 5 for the master spindle

M<n>=41 to M<n>=45:

Select gear stage 1 to 5 for spindle number <n>.

Note

M functions M3, M4, M5, and M70 are not output in DB21, ... DBB194 and DBB202 if a spindle is

configured in a channel. These M functions are offered as extended M functions in DB21, ...

DBB68 ff. and in the relevant axis DBs, DB31, ... DBB86 ff.

Further information

For exhaustive information about programming the spindle, see the NC Programming

Programming Manual.

Axes and spindles

460

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

Spindles

12.7 Programming

Channel assignment

A spindle job is processed in that particular channel, which is assigned to the spindle at the

instant of the job.

The channel, which is assigned to the spindle, can be determined using the following NC/PLC

interface signal:

DB31, ... DBX68.0 - 3 (channel assignment of the NC axis/spindle)

Mode change

The definitions made within the context of the spindle jobs are kept beyond any mode change.

Program start

When an NC program starts in the channel, which is assigned to the spindle, then the actual

spindle definitions are kept. Spindle definitions can be changed using NC program commands or

using synchronized actions.

See also

M40: Automatic gear stage selection for speeds outside the configured switching thresholds

(Page 477)

Velocities, setpoint/actual value systems, closed-loop control (Page 135)

12.7.4.2

Commissioning: Machine data

Automatically accepting spindle definitions in setting data

Using the following machine data settings, spindle definitions are transferred from NC

programs, synchronized actions and the spindle control by the PLC (FC18) into the

corresponding setting data:

MD35035 $MA_SPIND_FUNCTION_MASK, bit x = <value>

Bit

Value

Meaning

4

1

A speed setpoint is entered via NC program, synchronized actions or FC18 is trans-

ferred into the following spindle-specific setting data:

SD43200 $SA_SPIND_S[<spindle>]

Note

S values that are not programmed speed values are not transferred. e.g.:

• S value at constant cutting speed (G96, G961)

• S value for rotation-related dwell time (G4)

0

No speed setpoints are transferred into the setting data.

Axes and spindles

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

463

Spindles

12.7 Programming

Bit

Value

Meaning

8

1

A cutting rate is entered as setpoint in the following spindle-specific setting data

via the NC program, synchronized actions or FC18 if the "Constant cutting rate"

function is active (G96, G961, G962):

SD43202 $SA_SPIND_CONSTCUT_S[<spindle>]

Note

S values that are not programmed cutting rate values are not transferred. e.g.:

• S value for rotation-related dwell time (G4)

0

No cutting rate setpoints are transferred into the setting data.

10

1

For the master spindle the feedrate type is transferred into the following setting

data:

SD43206 $SA_SPIND_SPEED_TYPE[<spindle>]

0

No feedrate type definitions for the master spindle are transferred into the setting

data.

With the spindle definitions transferred into the setting data, the spindle is traversed to execute

the spindle jobs.

12.7.4.3

Commissioning: NC/PLC interface signals

Job interface

• DB31, … DBX30.0 (spindle stop)

• DB31, … DBX30.1 (spindle start, clockwise)

• DB31, … DBX30.2 (spindle start, counter-clockwise)

• DB31, ... DBX30.3 (select gear stage)

• DB31, … DBX30.4 (spindle positioning start)

Relevant state signals

• DB21, ... DBX35.3 (program state "interrupted")

• DB21, ... DBX35.4 (program state "canceled")

• DB21, ... DBX35.7 (channel state "reset")

• DB21, ... DBX35.6 (channel state "interrupted")

• DB31, ... DBX68.0 - 3 (channel assignment of the NC axis/spindle)

• DB31, ... DBX 84.0 (constant cutting rate)

Further information

A detailed description of the NC/PLC interface signals can be found in the NC Variables and

Interface Signals List Manual.

12.7.4.4

Speed setpoint (SD43200)

When starting a spindle using a spindle job, then the spindle-specific value entered in the setting

data becomes active as spindle speed:

Axes and spindles

464

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

Spindles

12.7 Programming

System of units

When writing the setting data, the value is interpreted corresponding to the following secondary

conditions:

• Writing via NC program or synchronized action:

- G700 active: feet/min

- G710 active: m/min

- G70, G71 active: Depending on the setting in MD10240

$MN_SCALING_SYSTEM_IS_METRIC

• Writing via SINUMERIK Operate:

- Depending on the setting in MD10240 $MN_SCALING_SYSTEM_IS_METRIC

• Writing via FC18:

- Function number 10: "constant cutting rate (m/min)"

- Function number 11: "constant cutting rate (feet/min)"

Reading via system or OPI variable

In the NC program, synchronized action or HMI, the currently entered setpoint for the constant

cutting rate can be read using the following system data:

System variable

OPI variable

Meaning

$P_CONSTCUT_S

---

Last programmed cutting rate

$AC_CONSTCUT_S

acConstCutS

Actual constant cutting rate

12.7.4.6

Entering the spindle speed type for the master spindle (SD43206)

Definition of the spindle speed type for the master spindle from part program, FC18 or

synchronized actions are written to the following setting data from all the usual sources:

SD43206 $SA_SPIND_SPEED_TYPE (spindle speed type for spindle start via PLC interface)

The value range and functionality correspond to the 15th G group (feedrate type).

Permissible values are G values: 93, 94, 95, 96, 961, 97 and 971.

Depending on the setting, for DB31, … DBX30.1/2 (spindle start, clockwise/counter-clockwise)

either the speed from SD43200 $SA_SPIND_S or the cutting speed from

SD43202 $SA_SPIND_CONSTCUT_S is active:

93, 94, 95, 97 and 971:

The master spindle is started with the speed from SD43200.

96 and 961:

The speed of the master spindle is obtained from the specified

cutting rate (SD43202) and the radius of the transverse axis.

Axes and spindles

466

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

Spindles

12.7 Programming

12.7.5

External programming (PLC, HMI)

SD43300 and SD42600

The revolutional feedrate behaviour can be selected externally via the axial setting data:

SD43300 $SA_ASSIGN_FEED_PER_REV_SOURCE (Rotational feedrate for spindles)

in JOG operating mode using the channel-specific setting data

SD42600 $SC_JOG_FEED_PER_REV_SOURCE (Revolutional fedrate control in JOG mode)

The following settings can be made via the setting data:

>0:

The machine axis number of the rotary axis/spindle from which the revolutional feedrate shall

be derived.

-1:

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

spindle is active in each case.

0:

Function is deselected.

FPRAON (S2)

Revolutional feedrate for spindle S2 ON, derived from the master spindle

FPRAON (S2, A)

Revolutional feedrate for spindle S2 ON, derived from axis A.

The revolutional feedrate value must be specified with FA[Sn].

FPRAOF (S2)

Revolutional feedrate for spindle S2 OFF.

SPI(n)

It is also possible to program SPI(n) instead of SPI(Sn).

Axes and spindles

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

467

Spindles

12.8 Spindle monitoring

12.8

Spindle monitoring

12.8.1

Permissible speed ranges

The permissible speed range of a spindle results from the parameterized or programmed speed

limit values and the active spindle function (G94, G95, G96, G961, G97, G971, G33, G34, G35,

G331, G332, etc.).

6SHHG

0D[ HQFRGHU OLPLW IUHTXHQF\

0'

0$B(1&B)5(4B/,0,7

0DFKLQH GHSHQGHQW PD[ VSLQGOH VSHHG

0'

0$B63,1'B9(/2B/,0,7

3URFHVV GHSHQGHQW PD[ VSLQGOH VSHHG

6'

6$B63,1'B86(5B9(/2B/,0,7

0D[ VSLQGOH VSHHG RI DFWLYH JHDU VWDJH Q

0'

0$B*($5B67(3B0$;B9(/2B/,0,7>Q@

0'

0$B*($5B67(3B3&B0$;B9(/2B/,0,7>Q@

3URJUDPPDEOH VSLQGOH VSHHG OLPLW *

6'

6$B63,1'B0$;B9(/2B*

3URJUDPPDEOH VSLQGOH VSHHG OLPLWDWLRQ /,06 *

6'

6$B63,1'B0$;B9(/2B/,06

3URJUDPPDEOH PLQLPXP VSLQGOH VSHHG *

6'

6$B63,1'B0,1B9(/2B*

0LQ VSLQGOH VSHHG RI DFWLYH JHDU VWDJH Q

0'

0$B*($5B67(3B0,1B9(/2B/,0,7>Q@

0D[ YHORFLW\ VSHHG $[LV VSLQGOH VWRSSHG

0'

0$B67$1'67,//B9(/2B72/

,) $[LV VSLQGOH VWDWLRQDU\ Q QPLQ

6SHHG UDQJH RI VSLQGOH RU VSLQGOH FKXFN

6SHHG UDQJH RI DFWLYH JHDU VWDJH

6SHHG UDQJH RI DFWLYH JHDU VWDJH

OLPLWHG E\ * DQG *

6SHHG UDQJH RI DFWLYH JHDU VWDJH

ZLWK FRQVWDQW FXWWLQJ UDWH * DQG *

,) 5HIHUHQFHG V\QFKURQL]HG

Figure 12-8

Ranges of spindle monitoring functions / speeds

Axes and spindles

468

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

Spindles

12.8 Spindle monitoring

The minimum gear stage speed is effective only in speed mode and can only be undershot by:

• Spindle override 0%

• M5

• S0

• DB31, ... DBX4.3 (spindle stop)

• DB31, ... DBX2.1 (withdraw controller enable)

• DB21, ... DBX7.7 (reset)

• DB31, ... DBX2.2 (delete distance-to-go / spindle reset)

• DB31, ... DBX18.5 (oscillation speed)

• DB21, ... DBX7.4 (NC stop axes plus spindles)

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

• DB31, ... DBX16.7 (delete S value)

Maximum speed

The maximum speed of the gear stage of a spindle is configured in machine data:

MD35130 $MA_GEAR_STEP_MAX_VELO_LIMIT[<n>]

The speed setpoints, generated taking into account the override, are limited to this speed.

The following NC/PLC interface signal is set in the case that the speed is limited:

DB31, ... DBX83.1 (speed setpoint limited)

12.8.5

Diagnosis of spindle speed limitation

System variables

The effective/limiting spindle parameters can be read via the following system variables: The

system variables must be indexed with the spindle number and they return values only relevant

in the speed control and spindle position modes.

System variable

Meaning

$AC_SMAXVELO[<n>]

Maximum possible spindle speed [RPM].

$AC_SMAXVELO_INFO[<n>]

Identifier for the speed-limiting data element.

$AC_SMINVELO[<n>]

Minimum possible spindle speed [RPM].

$AC_SMINVELO_INFO[<n>]

Identifier for the speed-increasing data element.

$AC_SMAXACC[<n>]

Maximum possible spindle acceleration [rev/s²].

$AC_SMAXACC_INFO[<n>]

Identifier for the acceleration-limiting data element.

$AC_SPIND_STATE[<n>]

Spindle status in speed-control mode.

<n>: 0, 1, 2, ... maximum spindle number (0: current master spindle of the channel)

Axes and spindles

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

471

Spindles

12.8 Spindle monitoring

Note

Rotary axis / spindle

If a spindle is also temporarily operated as a rotary axis, alarm 22100 "Chuck speed exceeded"

is displayed if:

"Actual speed of the rotary axis" > MD35100 $MA_SPIND_VELO_LIMIT

(maximum spindle speed) +

MD35150 $MA_SPIND_DES_VELO_TOL (spindle speed tolerance value)

Remedy: Adjust the maximum spindle speed to the maximum rotary axis speed during rotary

operation:

MD35100 $MA_SPIND_VELO_LIMIT = MD32000 $MA_MAX_AX_VELO (maximum

speed of the rotary axis)

For the change to take effect a reset must be triggered.

Maximum spindle speed: Configurable process-dependent limit value

The maximum process-related spindle speed is configured through the following setting data:

SD43235 $SA_SPIND_USER_VELO_LIMIT (maximum spindle speed)

Changes can be made by writing the setting data through:

• Programming in an NC program

• Manually through the user interface by the machine operator

Changes become effective immediately.

Limitation of the speed setpoint

Where appropriate, the controller limits programmed spindle speed setpoints to the values

specified in the setting data. The limitation is then displayed through the following system

variables:

$AC_SMAXVELO_INFO[<Spindle number>] == 21

12.8.7

Maximum encoder limit frequency

CAUTION

Limit violation

The maximum encoder frequency limit of the actual spindle position encoder is monitored by

the control (the limit can be exceeded). It is the responsibility of the machine tool manufacturer

to ensure that the configuration of the spindle motor, gearbox, measuring gearbox, encoder

and machine data prevents the maximum speed of the actual spindle position encoder being

exceeded.

Axes and spindles

474

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

Spindles

12.8 Spindle monitoring

12.8.8

End point monitoring

End point monitoring

During positioning (the spindle is in positioning mode), the system monitors the distance from

the spindle (with reference to the actual position) to the programmed spindle position setpoint

(end point).

For this to work, in machine data:

MD36000 $MA_STOP_LIMIT_COARSE (Exact stop limit coarse)

and

MD36010 $MA_STOP_LIMIT_FINE (Exact stop limit fine)

two limit values can be defined as an incremental path starting from the spindle position

setpoint.

Regardless of the two limit values, the positioning of the spindle is always as accurate as defined

by the connected spindle measurement encoder, the backlash, the transmission ratio, etc.

Exact stop window dependent on parameter set

Various parameter-set-dependent exact stop windows can be configured.

This makes it possible to work to different levels of accuracy in axis mode and spindle

positioning. The exact stop window can be configured separately for each gear step for spindle

positioning.

4QFFE

4FUQPJOU QPTJUJPO

.BY NPUPS

TQFFE

&YBDU TUPQ MJNJU

DPBSTF

1PTJUJPO

&YBDU TUPQ MJNJU ꫼OF

Figure 12-9

Exact stop zones of a spindle

DB31, ... DBX60.7 and DB31, ... DBX60.6 (position reached with exact stop coarse / fine)

The two limit values defined by machine data:

MD36000 $MA_STOP_LIMIT_COARSE (Exact stop limit coarse)

and

MD36010 $MA_STOP_LIMIT_FINE (Exact stop limit fine)

are output to the PLC using NC/PLC IS:

DB31, ... DBX60.7 (Position reached with exact stop coarse)

and

DB31, ... DBX60.6 (Position reached with exact stop fine).

Axes and spindles

476

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

Spindles

12.9 Spindle with SMI 24 (Weiss spindle)

Note

Spindle with sensor module SMI 24 and axis container

A spindle with sensor module SMI 24 and drive telegram 139 for the transmission of sensor data

to the control must not be part of an axis container whose axes are distributed over several NCUs

via an NCU link.

Transmission of sensor data

Sensor data is transferred to the control from sensor module SMI 24 in cyclic drive telegram 139

as process data 11 - 14. Drive telegram 139 is based on drive telegram 136, where sensor data

is transferred instead of the data of the 2nd encoder. A detailed description of drive telegram

139 can be found in:

Further information: SINAMICS S120/S150 List Manual; Function Diagrams, Chapter:

PROFIdrive

System data: Sensor data

Sensor data can be read into the control via the following system data:

Meaning

System variable

NC/PLC inter-

OPI variables

Drive param-

$VA_

face

eters

DB31, ...

Sensor configuration

MOT_SENSOR_CONF[<axis>]

DBB132,

vaMotSensorConf

r5000

DBB133

Clamped state ¹⁾

MOT_CLAMPING_STATE[<axis>]

DBW134

vaMotClampingState

r5001

Measured value analog

MOT_SENSOR_ANA[<axis>]

DBW136

vaMotSensorAna

r5002

sensor S1 ^{1) 2)}

Status digital sensors

MOT_SENSOR_DIGI[<axis>]

DBB138,

vaMotSensorDigi

r5003

DBB139

<axis>: Machine axis name: AX1 ... AXn or spindle name: S1 ... Sm

1)

See Chapter "Clamped state (Page 481)"

2)

Sensor S1: 0 - 10 V

Analog actual value: 10000 increments, resolution 1 mV

Example:

SIMATIC S7 input module: 27648 increments, resolution 0.36 mV

Adaptation factor if you change to a spindle with SMI 24: (10000 incr. * 1 mV) / (27648 incr.

* 0.36 mV) = 1.00469393

Detailed system data description

NC/PLC interface signals

NC Variables and Interface Signals List Manual

System variable:

List Manual, System Variables

Axes and spindles

480

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

Spindles

12.9 Spindle with SMI 24 (Weiss spindle)

In the various clamped states, the controller limits the spindle speed to the applicable limit.

Note

Changing the speed limits

A change of the speed limits in drive parameter p5043[0...6] is only effective in the controller

(limitation of the spindle speed to the new speed limit) after:

• Power-on reset or when the controller is switched-off/switched-on

• Deselecting the "Park" status for the spindle (see Function Manual "Monitoring and

Compensating", Section "Parking a machine axis")

Context: State value, voltage range and speed limit

State value ¹⁾

Clamped state

Voltage range ²⁾

Speed limit

Upper limit

Lower limit

0

Sensor S1 not available or state values inactive

---

---

---

3)

1

State initialization running

---

---

3)

2

Released with signal (error state)

---

p5041[0] + p5040

3

Released

p5041[0]

p5041[1]

p5043[0]

4

Clamping with tool

---

---

p5043[1]

5

Releasing with tool

---

---

p5043[2]

6

Releasing without tool

---

---

p5043[3]

7

Clamped with tool AND S4 == 0

p5041[2]

p5041[3]

p5043[4]

8

Clamped with tool AND S4 == 1

p5043[4]

9

Clamping without tool

---

---

p5043[5]

10

Clamped without tool

p5041[4]

p5041[5]

p5043[6]

3)

11

Clamped with signal (error state)

p5041[5] - p5040

---

1)

The state value can be read into the controller using the following system data:

• System variable:

$VA_MOT_CLAMPING_STATE[<axis>]

• NC/PLC interface:

DB31, ... DBW134

• OPI variables:

vaMotClampingState

• Drive parameters:

r5001

2)

p5041[0...5]: Voltage threshold values, p5040: Voltage threshold values tolerance

3)

Speed limit permanently set: 0 [rpm]

Axes and spindles

482

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

Spindles

12.12 Data lists

12.12

Data lists

12.12.1

Machine data

12.12.1.1

NC-specific machine data

Number

Identifier: $MN_

Description

10192

GEAR_CHANGE_WAIT_TIME

Wait time for acknowledgment of a gear stage change

during reorganization

10714

M_NO_FCT_EOP

M function for spindle active after RESET

12060

OVR_SPIND_IS_GRAY_CODE

Spindle override 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

12.12.1.2

Channelspecific machine data

Number

Identifier: $MC_

Description

20090

SPIND_DEF_MASTER_SPIND

Initial setting for master spindle on channel

20092

SPIND_ASSIGN_TAB_ENABLE

Enabling/disabling of spindle converter

20850

SPOS_TO_VDI

Output of M19 to the PLC with SPOS/SPOSA

22400

S_VALUES_ACTIVE_AFTER_RESET

S function active after RESET

12.12.1.3

Axis/spindlespecific machine data

Number

Identifier: $MA_

Description

30300

IS_ROT_AX

Rotary axis

30310

ROT_IS_MODULO

Modulo conversion

31044

ENC_IS_DIRECT2

Encoder on intermediate gear

31050

DRIVE_AX_RATIO_DENOM

Load gear denominator

31060

DRIVE_AX_RATIO_NUMERA

Load gear numerator

31064

DRIVE_AX_RATIO2_DENOM

Intermediate gear denominator

31066

DRIVE_AX_RATIO2_NUMERA

Intermediate gear numerator

31070

DRIVE_ENC_RATIO_DENOM

Measuring gear denominator

31080

DRIVE_ENC_RATIO_NUMERA

Measuring gear numerator

31122

BERO_DELAY_TIME_PLUS

BERO delay time in plus direction

31123

BERO_DELAY_TIME_MINUS

BERO delay time in minus direction

32200

POSCTRL_GAIN

K_V factor

Axes and spindles

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

485

Spindles

12.12 Data lists

Number

Identifier: $MA_

Description

32800

EQUIV_CURRCTRL_TIME

Equivalent time constant of the current control loop for

feedforward control

32810

EQUIV_SPEEDCTRL_TIME

Equivalent time constant of the speed control loop for

feedforward control

32910

DYN_MATCH_TIME

Time constant for dynamic response adaptation

34040

REFP_VELO_SEARCH_MARKER

Reference point creep velocity

34060

REFP_MAX_MARKER_DIST

Monitoring of zero mark distance

34080

REFP_MOVE_DIST

Reference point distance / destination point for distance-

coded system

34090

REFP_MOVE_DIST_CORR

Reference point offset / absolute offset, distance-coded

34100

REFP_SET_POS

Reference point value

34200

ENC_REFP_MODE

Referencing mode

35000

SPIND_ASSIGN_TO_MACHAX

Assignment of spindle to machine axis

35010

GEAR_STEP_CHANGE_ENABLE

Type of gear stage change

35012

GEAR_STEP_CHANGE_POSITION

Gear stage change position

35014

GEAR_STEP_USED_IN_AXISMODE

Gear stage for axis mode with M70

35020

SPIND_DEFAULT_MODE

Basic spindle setting

35030

SPIND_DEFAULT_ACT_MASK

Activate basic spindle setting

35035

SPIND_FUNCTION_MASK

Setting of spindle-specific functions

35040

SPIND_ACTIVE_AFTER_RESET

Spindle active after reset

35090

NUM_GEAR_STEPS

Number of set gear stages

35092

NUM_GEAR_STEPS2

2nd gear stage data set: Number of set gear stages

35100

SPIND_VELO_LIMIT

Maximum spindle speed

35110

GEAR_STEP_MAX_VELO[n]

Maximum speed for automatic gear stage change

35112

GEAR_STEP_MAX_VELO2[n]

2nd gear stage data set: Maximum speed for automatic

gear stage change

35120

GEAR_STEP_MIN_VELO[n]

Minimum speed for automatic gear stage change

35122

GEAR_STEP_MIN_VELO2[n]

2nd gear stage data set: Minimum speed for automatic

gear stage change

35130

GEAR_STEP_MAX_VELO_LIMIT[n]

Maximum speed of gear stage

35135

GEAR_STEP_PC_MAX_VELO_LIMIT[n]

Maximum speed of gear stage in position control

35140

GEAR_STEP_MIN_VELO_LIMIT[n]

Minimum speed of gear stage

35150

SPIND_DES_VELO_TOL

Spindle speed tolerance

35160

SPIND_EXTERN_VELO_LIMIT

Spindle speed limitation from PLC

35200

GEAR_STEP_SPEEDCTRL_ACCEL[n]

Acceleration in speed control mode

35210

GEAR_STEP_POSCTRL_ACCEL[n]

Acceleration in position control mode

35212

GEAR_STEP_POSCTRL_ACCEL2[n]

2nd gear stage data set: Acceleration in position control

mode

35220

ACCEL_REDUCTION_SPEED_POINT

Speed limit for reduced acceleration

35230

ACCEL_REDUCTION_FACTOR

Reduced acceleration

35300

SPIND_POSCTRL_VELO

Position control activation speed

35350

SPIND_POSITIONING_DIR

Positioning direction of rotation for a non-synchronized

spindle

Axes and spindles

486

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

Spindles

12.12 Data lists

Number

Identifier: $MA_

Description

35400

SPIND_OSCILL_DES_VELO

Oscillation speed

35410

SPIND_OSCILL_ACCEL

Oscillation acceleration

35430

SPIND_OSCILL_START_DIR

Oscillation start direction

35440

SPIND_OSCILL_TIME_CW

Oscillation time for M3 direction

35450

SPIND_OSCILL_TIME_CCW

Oscillation time for M4 direction

35500

SPIND_ON_SPEED_AT_IPO_START

Feed enable with spindle in setpoint range

35510

SPIND_STOPPED_AT_IPO_START

Feed enable with stationary spindle

35550

DRILL_VELO_LIMIT[n]

Maximum speeds for tapping

35590

PARAMSET_CHANGE_ENABLE

Parameter set specification possible from PLC

36060

STANDSTILL_VELO_TOL

Threshold velocity "Axis/spindle stationary"

36200

AX_VELO_LIMIT

Threshold value for velocity monitoring.

12.12.2

Setting data

12.12.2.1

Channelspecific setting data

Number

Identifier: $SC_

Description

42600

JOG_FEED_PER_REF_SOURCE

Revolutional feedrate control in JOG mode

42800

SPIND_ASSIGN_TAB

Spindle number converter

42900

MIRROR_TOOL_LENGTH

Mirror tool length offset

42910

MIRROR_TOOL_WEAR

Mirror wear values of tool length compensation

42920

WEAR_SIGN_CUTPOS

Mirror wear values of machining plane

42930

WEAR_SIGN

Invert sign of all wear values

42940

TOOL_LENGTH_CONST

Retain the assignment of tool length components when

changing the machining plane (G17 to G19)

12.12.2.2

Axis/spindle-specific setting data

Number

Identifier: $SA_

Description

43200

SPIND_S

Speed for spindle start via PLC interface

43202

SPIND_CONSTCUT_S

Cutting rate for spindle start via PLC interface

43206

SPIND_SPEED_TYPE

For spindle start via PLC interface

43210

SPIND_MIN_VELO_G25

Progr. Spindle speed limiting G25

43220

SPIND_MAX_VELO_G26

Progr. Spindle speed limiting G26

43230

SPIND_MAX_VELO_LIMS

Progr. spindle speed limiting G96/G961

43235

SPIND_USER_VELO_LIMIT

Maximum spindle speed

43240

M19_SPOS

Spindle position for spindle positioning with M19

Axes and spindles

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

487

Spindles

12.12 Data lists

Number

Identifier: $SA_

Description

43250

M19_SPOSMODE

Spindle positioning approach mode for spindle position-

ing with M19

43300

ASSIGN_FEED_PER_REF_SOURCE

Rotational feedrate for positioning axes/spindles

Axes and spindles

488

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

Synchronous spindle

13.1 Brief description

Selecting/de-selecting

Part program commands are used to select/deselect the synchronous operation of a pair of

synchronous spindles.

8PSLIPMEFS

O

O

4QJOEMF

4QJOEMF

O

O

4QJOEMF

4QJOEMF

O

O

4QJOEMF

4QJOEMF

Figure 13-1

Synchronous operation: On-the-fly workpiece transfer from spindle 1 to spindle 2

O

O

4QJOEMF

4QJOEMF

Figure 13-2

Synchronous operation: Polygonal turning

Axes and spindles

490

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

Synchronous spindle

13.1 Brief description

13.1.2

Synchronous mode

Description

<axial expression>:

can be:

- Axis name

- Spindle name

<axis name>:

C (if spindle has the name "C" in axis operation.)

<spindle name>:

Sn, SPI(n) where n = spindle number

<Spindle number>:

1, 2, ... according to the spindle number defined in

MD35000 $MA_SPIND_ASSIGN_TO_MACHAX

(FS, LS, offset):

LS = Leading Spindle, FS = Following Spindle, Off-

set = read programmable offset of following spin-

dle using system variables

$P_COUP_OFFS[Sn]

Programmed position offset of the synchronous

spindle

Synchronous spindle pair

Synchronous operation involves a following spindle (FS) and a leading spindle (LS), referred to

as the synchronous spindle pair. The following spindle imitates the movements of the leading

spindle when a coupling is active (synchronous operation) in accordance with the defined

functional interrelationship.

Synchronous mode

Synchronous mode (also referred to as “Synchronous spindle operation”) is another spindle

operating mode. Before synchronous mode is activated, the following (slave) spindle must have

been switched to position control. Synchronous operation is activated for the following spindle

when the coupling is activated. As soon as the coupling is deactivated, the following spindle

switches back to open-loop control mode.

As soon as synchronous operation is active for the following spindle, the following interface

signal is reported to the PLC:

IS "Synchronous mode" (DB31, ... DBX84.4) = 1.

Number of synchronous spindles

It is possible to couple several following spindles to one leading spindle. The number of

following spindles on this leading spindle depends on the respective version of the appropriate

software versions.

Any number of following spindles in any channels of one NCU or a different NCU can be coupled

to this leading spindle.

Note that one spindle is always the master and the number of couplings results from the number

of axes less the master.

Axes and spindles

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

491

Synchronous spindle

13.1 Brief description

Synchronization is recovered as follows:

• By repeating the part program operation COUPON (FS, LS, offset) with IS "Disable

synchronization" (DB31, ... DBX31.5) = 0.

COUPON (FS, LS, offset) can be written e.g. in an ASUB.

• By setting the IS "Resynchronize" (DB31, ... DBX31.4) = 1

Read offset

The following system variables can be used to read three different position offset values of the

following spindle from the part program and synchronized actions. The variable

$P_COUP_OFFS[Sn] is only available in the part program.

Description

NC variable

Programmed position offset of the synchronous spindle

$P_COUP_OFFS[Sn]

Position offset of synchronous spindle, setpoint end

$AA_COUP_OFFS[Sn]

Position offset of synchronous spindle, actual value end

$VA_COUP_OFFS[Sn]

"Feedrate stop/spindle stop"

By configuring bit 4 in MD30455 MISC_FUNCTION_MASK, the behavior of the axial IS "Feedrate

stop/Spindle stop" (DB31, ... DBX4.3) is defined for the following spindle.

Bit 4 = 0 compatibility method:

Canceling feed enable for the following spindle decelerates the coupling assembly.

Bit 4 = 1:

Feedrate enable refers only to the interpolation component (SPOS,..) and does not affect the

coupling.

Note

Other configuration options for axis functions using MD30455 $MA_MISC_FUNCTION_MASK:

Further information

Rotary axes (Page 307)

13.1.7

Monitoring of synchronous operation

Fine/coarse synchronism

In addition to conventional spindle monitoring operations, synchronous operation between the

FS and LS is also monitored in synchronous mode.

IS "Fine synchronism" (DB31, ... DBX98.0) or IS "Coarse synchronism" (DB31, ... DBX98.1) is

transmitted to the PLC to indicate whether the current position (AV, DV) or actual speed (VV) of

the following spindle lies within the specified tolerance window.

Axes and spindles

Function Manual, 10/2020, 6FC5397-4GP40-0BA1

503

Content      ..     8      9      10      11     ..