BCN-15345-S2.PDF

BCN-1534%S2

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SPINDLE ORIENT.ATION by ENCODER

TYPE DL-UE

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MAINTENANCE

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MANUAL .. . ,a .,.. ,.- ,. ~ 2,- >;..

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Now publkatlon dtoctlvo Fob. lB811ransht.d from Japamou manual BCN-11341.81 AtMITSUBISHIELECTRIC

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\I . IntroductionPage.......................................................................................................................1

1. Specifications ..._..___~__ ....................................................................................................1

m. Basic principle ...................................................................................................................2

3_ 1 Bol ck diagram ....-..........~..............~................................................................~_.........................2

3-2 ()perati on expl afiati on ............................................................................................................3

Iv. Parts 1 ayout drawing ..................................................................................................... 5

V . S i te adjustments .........____ .........................____ ..................................................................... 6

5-l Initial adjustments and adjustments beforestart of mass production ............................................................................................. 5

5-2 Adjustment after start of mass producti ~~..-..--.............~.......~........._..._..~.....~................7

5-3 Setting details for each part ._._____._ ____ ____ __ ___._.__________.___ _ __._ ___ ________ _________ ______ _ __________ __ .____._. 8

5-4 Installation of the encoder . . ..~._..~~___~~....._.................~._~_.~.~.._...~..~................~......---~-------.. 13

M. Detai Is for check terminals and I ight-emi tting diodes------------------ 14

6-l Li st of the check terminal s ............... .._.....~...~...~......._.~.~....~~._~........._.~.....~.~.._~........._......_~.l 4

6-2 Detai 1 s for the 1 ight-emi tti ng di o&s. ...........................................................................15

cM. Connector composition. card dimensions, and card weight ..-.----. 17

7_ 1 Connector composition __________________________________________~~~.....~......._........~__.~......~...~...-................... 1 7

7-2 Card dimens i ens _________________i__________________....._~.~~...........~~~.~..........~.-...--~........~......~.....-~-...-...17

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MS T roubie -shoot ing .............................................................................................................18

8-1 External c.,eck ........................................................................._ ..........................................18

8-2 Vol f-age check ......................................................................................................................18

8-3. Trouble-shooting............................................ ....................................................................18

K. Card Exchange _______________ ____ __ _____ __________ __._________..________._ _ _.__........ _.._.__ -..... _-_ -.... I . . . . . . . _ . . . . . . ..- ---_ 20

X . Elementary diagram._...___._._ _.____ _______________ _ ________ _._ _________ _ _____.._ _._ __.............................: . . . . . 21

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I . Introduct ion

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This manual treats the option card DL-UE for spindle

orientation function according to the encoder method.

II. S p e c i f i c a t i o n s

1. Used encoder: R FA-1024-22-1-68BKO-C-1723 (NIKON >

2. Resolution: O.O89"/pulse _

'3. Max. spindle speed: 6000 rpm.

4..IN POSITION judqement width: + 0.6" or + 0.3" (switchable)

Standard setting: + 0.6O

5. Output signal contacts: 1A contacts. Closed with IN-

POSITION Contact rating DC 30 V,

0.2 A or less

6. Orientation position adjustment: Adjuktment is possible

with the switch on the card

in increments of 0.089" to

max. about + ll".

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Ill. Basic principle

3-l. Block diagramThe block diagram is shown in Fig. 3-l.

I Stop porition indication

IN POSITION l-4

o-PLG Racoivor

4 t

Synohroniz-d lbcoiver -

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ationcircuit

IN POSITIONsott ing width

Position Bufferamp1 if iar am01 ifier

me-

~;(~%jY---

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Suffer amplifier .. Speed amp1 if ier

Fig. 3-l Block diagram

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3-2. Operat ion explanat ion

The operation is shown in the time chart of Fig. 3-2 .

Motor speed

Speed decided by the gain ofthe position amplifier

Counting isstarted

yc

Orientation command

UP TO SPEED

n l-l 1 !Mark pulse I rl

IN POSITION OUTPUT

(1)

(2)

(3)

(4)

I -4-L200mS 'Fig. 3-2 Time chart

By orientation command, the motor speed is switched

to orientation speed.

When the motor speed reaches the orientation speed,

the UP TO SPEED signal rises.

When a mark pulse enters after rising of the UP TO

SPEED Signal , the orientation position set by SW801 and

MI802 is read, and counting is started simultaneously.

The motor speed at this time is the orientation speed.

When a point about SO0 before the target point is

reached, the control loop is switched from the speed

loop to the position loop. At this time, the motor

speed is switched from the orientation speed to the

speed decided by the gain of the position amplifier.

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(5) At about 11' before the target point, the linear zone

of the position loop is entered, the motor starts

deceleration, and stop is executed at the target point.

(6) The IN POSlTlON signal rises at about 0.3' or about

0.6' respectively before the target point, and the

IN POSlTlON signal output contacts close about 200 ms

later. Switching between 0.3O and 0.6O can be executed

with the short-circuit pin on the card.

(7) When the orientation.command is cancelled, the motor

returns to the speed of the S command given at that

time.

(8)'When reorientation is executed from orientation con-

dition, then the motor turns once and. executes orientation.

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N. Parts layout drawing

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(POSlTl;_td;;ynt w i d t h Orientation position adjustment

(5-3 (3))

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H range orientation speed

/ (5-3 (811

L range orientstion speed/ (5-3 (9))

H range posit ion amplifier gain/

(5-3 (10))

L rsnge po&t ion amplifier gqin

(5-3

V. Site adjustments

5-l . Init ial adjustments

of mass production.

and adjustments before start

When machine and controller are combined for the first.

time and the controller has not been adjusted for that

machine before shipment from the factory, execute adjust-

ment according to this item.

Sequence'numbers, part numbers, and setting contents are

listed in the following.

1. PIN802: Encoder power

For details, refer to

Supply sellecticn

S-3.(5).

2. PIN.801: Encoder revolution direction

For details, refer to S-3.16).

3. PIN803: IN POSITIoN judgement width

For details, refer to S-3.(7).

4. VP801: H range orientation speed

Set preliminarily to scale graduation 2.

5. vR802: L range orientation speed

Set preliminarily to scale graduation 2.

6. VR803: H range position amplifier gain

For details, refer to S-3.(10).

7. VR804: L range position amplifier gain

For details, refer to S-3.(11).

8. VP 12 (in SD-W ): In case of unstable orientation operation

For details, refer to S-3.(4).

9. vR805: H range offset

For details, refer to S-3.(1).

10. VR806: L range offset

For details,. refer to S-3.(2).

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11. Sw801. SW802: Orientation position adjustment

Execute ATC without key insertion, and set to a suitable

position. However, it should be noted that an error

may be caused for the fit between spindle and tool

by tool insertion error, position deviation at the time

of insertion, etc.

For details, refer to S-3.(3).

5-2. Adjustment after start of mass production

The site adjustment items during mass production are

shown in the following.

Note:

For adjustment execution, confirm that VR801to VR804 and PIN801 to PIN803 are set correctly

according to "ADJUSTMENT DATA".

Sequence numbers, part numbers, and setting contents

are listed in the following.

1.

2.

3 .

4 .

VR12 (in SD-SA): In case of unstable orientation operation

For details, refer to S-3.(4).

VR805: H range offset

For details, refer to S-3.(1).

VR806: L range offset

For details, refer to 5-3. (2).

SW801, SW802: Orientation position adjustment

Execute ATC without key insertion, and set to a suitable

position. However, it should be noted that an error

may be caused for the fit between spindle and tool

by tool insertion error, position deviation at the time

of insertion, etc.

For details, refer to S-3.(3).

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5 - 3 . S e t t i n g details fo r each par t

The setting details for each part are explained in the

by the maker and should not be changed unnece-

(1) vR805: H range position amplifier offset adjustment

Repeat orientation (Mlg) with H gear MO3, and adjust

VI3805 so that the lighting condition of LED801 to

LED808 at the completion of orientation is as shown

in the following figure.

For the meaning of the light-emitting diodes, refer

to item 6-2.(l).

0 0

0 00 00 or 00 00 00 00 0

LCDaOl

LED802

LEO803

LED804

LED805

LED806

LED307

~ED808

o indicates LED illuminated

l indicates LED not illuminated

(2) VR806: L range position amplifier offset adjustment

Execute the same kind of adjustment as in item 1 with

VI3806 for the L gear l

As there is only a difference of 1 pulse between all

LED illuminated and all LED not illuminated, repeated

simultaneous ON/OFF for LED801 to LED808 indicates

that ON/OFF is repeated by an error of 1 pulse, and

this is not abnormal.

Generally, when adjustment for MO3 is executed so that

all LED are out, then in many cases LED801 to LED808

all together will tepeat ON/OFF with MO4, or only

LED808 will repeat ON/OFF, and this condition is OK.

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(3) SW8Ol.; SW=: Orientation position adjustment

Orientation position adjustment is executed with SW8Ol

and SW802.

Large 4 Small

SW801 and SW802 have a 2 bit binary code composition.

Number Movement amount(about) Numberr;;z;F;lt amount

11

ISW801(41 (vR12

Turn VR12 in the card SD-SA about 1 scale graduation

4 11.6O 4 0.72"

in D-SA) : In case of unstable spindle operation

at the time of orientation

in counterclockwise direction.

(5) PlN802: Setting of the encoder power supply source

(A> Power supply from the spindle controller

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Note:

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Set the pin to position A.

The standard setting for PIN802 at the time of

shipment is position A. .

Wrong setting of this pin may make orientation

impossible..

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(B) Power supply from. the-NC

-10 the encoder

St the Pin to Position 8.

CAUTION

Before the' pin insertion position is changed,

the power supply must be switched off.

(61 PIN801 : Setting of the encoder revolution direction

Start the spindle with SlOO, and insert the pin into

A or B so that LED811 and LED812 both light up or go

out together with MO3 and M04.-.

Good example Bad example

LED811 l ;o: LED811 l ;o;

LED812 l . :o: LED812 ;o: 0

MO3 MO4 MO3 MO4

or or

MO4 MO3

Note:

M O 4 M O 3

The standard position for PIN801 at the time of

shipment is position B.

When this pin is inserted wrongly, the spindle will

chatter at the time of orientation and orientation will

not be possible.

Note:

When motor and encoder's rotation is the same

direction, position A is used, and when their

rotation is opposite directions, position B

1 is used.

I Note:--Before'the pin insertion position is'chanped,

the power supply must be switched off.

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(71 PIN803: IN POSITION judgement width setting

PIN803A B

@Iz When the pin is inserted on side A, IN POSITION

is obtained with a width of + 3 pulses.-

A B

c@LWhen the pin is inserted on side B, IN POSITION

is obtained with a width of + 6 pulses.

Note :The standard setting for this pin at the time of

shipment is position B.I

*Note:

Before the pin insertion,position is changed, the

power'supply must be switched off.

(8) VR801: H range orientation speed

Orientation speed

Time

Try orientation in H gear. When VR801 is turned clock-

wise, the orientation speed increases as shown in the

figure, but excessive turning will cause overrun.

Visually observe that the servo speed appears suitable

for forward and reverse, and adjust so that orientation

is executed smoothly and quickly.

A spindle speed of about 200 rpm is suitable as

orientation speed.

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(9) VR802: L range orientation speed

Execute the same adjustment as in item 8 for the L gear.

In this case also, a-spindle speed of about 200 rpm

is suitable as orientation speed.

(10) VR803: H range position amplifier gain

Orientation speed

o As shown in the figure, clockwise turning of this

volume will increase the servo speed and shorten

the orientation time, while simultaneously the

position accuracy is improved.

o However, clockwise turning facilitates overrun.

o With further turning in clockwise direction, the

operation will become unstable, and.finally hunting

will occur.

Adjust so that orientation is executed smoothly and

quickly.

Note:-When this volume has been turned, the offset

must be readjusted according to item 1.

(11) VR804: L range pos i t i on ampl i f i e r ga in

Execute the same adjustment as described in item 10

for the L gear.

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When this volume has been turned, the offset must be

readjusted according to item 2.

5-4. I ns ta l la t ion o f the encoder .

As shown in Fig. 5-1, encoder has one thin line on

. the roter and two thin lines on the stater, respectively.

After the installation to the machine, when orientation

is finished, as shown in Fig. 5'1, the stater's line

coinsides with the skater's line that is in opposition

with the connector.

so, at the installation of the encoder, you should set

the machine's spindle to the orientation point required

at first, and then install the encoder of which lines

are in coincidence with each other as shown in Fig. 5-l.

More fine orient point adjust is executed within +ll

degrees electrically. (refer to S-4-3).

n rtater 8 I ines

rotbrsI

I inesW

+coincidexce of the two lines

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I-Fig. 5-l Orient point of the encoder

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Iorient s ta te ]

M. Detai ls for check terminals and l ight-emitt ing diodes

6-l. L is t o f the check te rmina ls

The check terminals, their functions, the normal values,

and the normal wave forms are listed in the following.

1. (X801: Orientation command confirmation

About +15 V by orientation start command.

2. a-1802: D/A

(1) + 10 v

(2) During

(3) At the

0 to +

converter output voltage

+ 10% during continuous revolution.

orientation

time of orientation completion

250 mV.

3. CH803: Speed command voltage

+ 10 V/max. speed.-

4. CH804: Synchronization oscillator output

m-OAbout 15 V

About 250 kHz

5. CH805: H range orientation speed command voltage-

About + 1 V to + 3 V.

6.

7.

CH806: L range orientation speed command voltage

About + 3 V to + 6 V.

CH807: UP/DOWN command

L at the time of DOWN COUNT

At the time of UP COUNT: - - - -

---I--LED812 lights up at the time of UP COUNT.

8. CH8C8: COUNT PULSE

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9. CH8O9: B phase pulse check

During continuous revolution:

10. CH810: A phase pulse check

Same as item 10.

11. CH811: Encoder power supply

+5 v + 10%.-

12. CH812: +5 V stabilized power supply output

+5 v + 10%.

13. CH 813: Common

0 v.

14. CH814: +15 V power supply

+15 v + 3%.

15. CH815: -15 V power supply

-15 v + 3%.- -

6-2. Details for the light-emitting diodes

(1) POSITION ERROR ( LED801 to LED8O8)

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LED801 to LED8Q8 indicate the deviation from the encoder

shaft target position as a.pulse number. As described

above, one pulse corresponds to 0.089'.

LED801.. . . . . . . .o 0 0 0 0 0 0 0 0 0 2~~~~~~OOOOOOO~O0000000000 2~~~8O3OOOO..O..~~~00000~~ 25

LED804.'. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2'

~~~8O5OooooooooOOOOOOOOeo 23

LED8060 0 0 0 0 0 0 0 0 0 0 0 0'0 0 0 0 0 0 22

~~D8O7oOOooOOeoOOooOOooOO 2l

L~~8o8oOoOoOoOoOoOoOoOoOo 2.O

-8-7-6-5-4-3-2-l-0+0 1 2 3 4 5 6 7 8 9

DOWN COUNT -

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(PULSE)

UP COUNT C . LED ILLUMINATED

TARGET POINT 0 LED NOT ILLUMINATED

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(2) Other light-emitting diodes

Lights up with normal A phase pulse0 LiDSO 1

0 LED8020 LED8030 LED8040 ~~~805

during motor run

Lights up with normal B phase pulseduring motor run

I ights up during reverse runof the motor

6 LED8060 LED8070 LED808

L E D 8 0 9

L E D 8 1 0Lights up at the time of up COUNT

(From S300 up, this LED lights up LED81 1independent of UP COUNT or DOWN COUNT.) LED81 2 I 1

Lights up with IN POSITION

As the circuit composition provides for UP C@UNT atthe time of reverse and DOWN COUNT at the time offorward, it is normal that both LED light up andgo out together.

Fig. 6-l

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cW. Connector composition9 card dimensions, and card weight

7-1 . Connector composition

(1) CON54

'1 2 3 4 5 6 7 8 9 10

A ORCl ORLK ORA OR1 ,PG LA1 RI P15E P12 AC1

B CTL ORAl OSB COM PG LA1 RI Nl5E N12. AC2

(2) CON4, CON5

I= IPA 1 XIPB 1

7-2 . Card d imens ions

!-------7-a:Weight

About 300 gr. (not including ,connection connectors).

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IW. T r o u b l e - s h o o t i n g

8-l. External check

First, execute the following visual checks:

o Are there abnormalities in the external appearance?

o Are there any damaged parts?

o Is there attachment of metal chips'or other foreign matter?

o Are there loose connectors?

8-2. Voltage check

Use a DC voltmeter to check the following check pins:

0 CH811: +5 v + 10%

o CH814: +15 v + 3%

o CH815: -15 v + 3%. ..I.

At*@iis time, CH813 is used as common for measuring.

8-3. T r o u b l e - s h o o t i n g

(1) Even when an orientation command (M19, Mll,, etc.) is

given, there is no change in the motor operation

(orientation is not possible).

1. The orientation interlock signal is ON.

The signal is ON when pin 5 of K-69 is "L".

Cancel the interlock signal.

2. No orientation signal is given to the card.

When pin 1 of lC-69 is not "L", the signal is not

applied. Treat the outside so that the signal is applied.

(2) When an orientation command is given, the spindle con-

tinues to run with about 200 rpm

1. No pulse signal from the encoder is given as input.

When LED801 to LED810 all light up during spindle

run, the pulses enter. When they do not light up:

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(1) Check the contact of the connectors CON4 and CON5..

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(2) Check the encoder wiring.

(3) Exchange the encoder.

(3) Overrun occurs at the time of orientation, and orientation

is executed to a completely different place

1. The orientation speed is high.

Turn VR801 (H range) and/or VR802 (4 range) for

about 1 scale graduation in counterclockwise direction.

(4) The spindle operation at the time of orientation is

not smooth

1. High gain of,the speed loop

Turn VR12 in the card SD-SA for about 1 scale

graduation in counterclockwise direction.

2. High gain of the position loop

Turn VR803 (H range) and/or VR804- (L range) for

about 1 scale graduation in counterclockwise direction.

Note:

After turning of VR12, VR803, and VR804, refer

to 5-3.(l) and (2) and execute offset adjustment.

5) Orientation is executed to the correct position, but

the IN POSITION signal is not put out

1. Deviation of the offset adjustment

Refer to S-3.(1) and (2) and execute offset ad-

justment.

(6) The IN POSITION signal drops off

the machine grasps the tool, and

immediately when

ATC operation stops.

1. The offset adjustment has deviated, the position

deviates slightly by external force at the moment

when the tool is grasped, and IN POSITION drops off.

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Refer to 5-3.(l) and (2) and execute offset ad-

justment.

2. Because of deviation of the orientation position

adjustment, a large external force is applied at

the moment when the tool is grasped, the position

deviates, and IN POSITION drops off.

Refer to 5-3.(3) and execute orientation position

adjustment.

K. Card Exchange

9-l. Pin and volume sett ing

Set PIN801 to P1~805 and VI3801 to VR804 to the same positions

as on the cart? to be exchanged.

Set SW801 and SW802 also to the same positions.

9-2. Offset adjustment

Adjust VI3805 and VR806 under reference to 5-3.(l) and (2).

g-3. Confirmation of the orientation posit ion

Execute ATC without key insertion, try manual key insertion,

and if manual insertion is not possible, confirm that a

position is reached where the taper part will enter with

application of hydraulic pressure.

In case of position deviation, adjustSW801 and SW802

according to 5-3.(3).

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