3OM-1064-001 - 第23页

Check whether the head rotational shaft rotates smoothly . *9 Confirm that the head rotational shaft rotates smoothly when turned by hand. Check whether the placement level is correct. *10 When a component is excessively…

(4) Open the “MANUAL AXIS OPERATION” display and move

the X/Y beams until they can be reached by hands. (Hierarchical

Sequence: “MANUAL MODE” Display

“MANUAL AXIS

OPERATION” Display).

(5) Set the [OPERATION/SET UP] switch on the checked side to

the “SET UP” side.

(6) Press the [READY] button on the checked side and release the

electromagnetic locks of the supply cover and the safety bar.

(7) Open the supply cover on the checked side.

(8) Open the “MANUAL SUBSYSTEM OPERATION” display and

press the [L**-AXIS VACUUM/BLOW] key to set the

“VACUUM BLOW” mode. (Hierarchical Sequence: “MANUAL

MODE” Display

“MANUAL SUBSYSTEM OPERATION”

Display)

(9) Put a small piece of paper on your palm and bring it close to the

end of the vacuum nozzle. Confirm that air is blown to the pa-

per.

Confirm that the paper is picked up when the [L**-AXIS

VACUUM/BLOW] key is pressed again to set the “VACUUM”

mode.

Refer to “Section 4 Manual Mode Menus in Volume 1” for the

detailed information on each display.

Check whether the hoses of the X/Y beams and the placement

heads are crushed or have any holes. *7

Refer to the management data and check the hose of the placement

head which has caused low component pick-up rate.

• Confirm that the bundled or fixed part of the hoses is not crushed

or the vacuum is leaking.

• Confirm that the connected parts of the hoses are not crushed nor

the vacuum is not leaking.

• Confirm that the flat tubes are not bent.

• Confirm that no hose in the cable bearer has a hole due to friction

and mechanical wear.

Check whether any vacuum nozzle is stained. *8

Dirty diffusion plate will cause a component recognition error or false

recognition.

If sebum or oil, etc., adheres to the surface of the diffusion plate of

the vacuum nozzle, note the followings and clean the surface.

(There is a possibility that components cannot be recognized.)

Prohibited Items

Use of Organic Solvents, Rag, etc.

Any Practice which may nick the diffusion plate

Recommended Cleaning: Use an ultrasonic cleaner and wash

the diffusion plate in water for 10 to

15 minutes or less.

Blow off moisture on the vacuum

nozzle, using compressed air.

If the nozzle is still dirty, consult our

sales personnel for details.

Note: Do not use any organic sol-

vent, a rag, etc.

Wipe off dirt accumulated on the nozzle end with a lens cleaning

cloth.

Refer to “Nozzle Stocker” in “6. Monthly Maintenance of Section 1

in Volume 4” and inspect the nozzles. If necessary, clean them.

Diffusion

Plate

Nozzle End

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1. Cause and Remedy of Simple Trouble

Check whether the head rotational shaft rotates smoothly. *9

Confirm that the head rotational shaft rotates smoothly when turned

by hand.

Check whether the placement level is correct. *10

When a component is excessively pushed for placement or the vacuum

turns off before a component reaches the placement surface, it will be

placed incorrectly, deviating from the correct placement position.

Check the offset in the vertical (height) direction and the height data

in the component library data.

Check whether the device offset data is proper. *11

If the device offset data is not normal, component cannot be picked

up nor placed correctly.

Open the “OFFSET DATA” display and check each offset data. (Hi-

erarchical Sequence: “DATA EDIT” Display → “OFFSET DATA”

Display)

Open the “MANUAL SUBSYSTEM OPERATION” and “DEVICE

TEST” displays and check visually that each device moves to its cor-

rect position.

Note: Although each offset data can be taught at the “OFFSET

TEACH” display, it is required to re-teach a series of device

offset data. (Hierarchical Sequence: “SPECIAL SEL.” Dis-

play → “OFFSET TEACH” Display)

A special jig is also required for the teaching operations.

Whenever it is necessary to perform the teaching operations,

consult our sales personnel for details.

Check whether P.C.B. support pins are correctly set. *1

Check visually whether no problem has arisen in the location of the

P.C.B. support pins.

Especially, when components are placed on both sides of a P.C.B.,

confirm that no component on the back of the P.C.B. touches any

P.C.B. support pin.

Check whether the P.C.B. supporting plate moves normally. *2

Check visually whether no problem has arisen in the movement of

the P.C.B. supporting plate.

When the P.C.B. supporting plate does not move up (pushing) nor-

mally, a P.C.B. may deviate from its correct position during compo-

nent placement.

Check whether the set parameter as the conveyor width (com-

pared with the P.C.B. width) is correct. *3

If the conveyor width is not proper, P.C.B.’s cannot be transferred

smoothly, causing wrong P.C.B. positioning or positional deviation

of a P.C.B. due to vibrations (caused during placement).

Or, P.C.B.’s may not be pushed horizontally enough or positioned

correctly, causing positional deviation of a P.C.B. during placement.

Check whether the groove of the fixed chute or the bearing of the

movable chute is under abnormal condition. *4

If a foreign substance exists in the groove of the fixed chute, P.C.B.’s

cannot be positioned correctly, causing positional deviation of place-

ment. If a foreign substance is found in the groove of the fixed chute

or the bearing of the movable chute during P.C.B. transfer does not

work smoothly, P.C.B.’s cannot be transferred, causing wrong P.C.B.

positioning or positional deviation of a P.C.B. due to vibrations (caused

during placement).

1.2.2 Deterioration of Accuracy in P.C.B. Positioning Section,

User Production P.C.B.’s, and Transfer Section

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1. Cause and Remedy of Simple Trouble

Check whether a problem has arisen in the condition of P.C.B.

surfaces. *5

Check for ragged P.C.B. surfaces and warping.

Especially, a warped P.C.B. may bound and cause components to de-

viate from the correct position during component placement.

Check whether the quantity of glue and solder paste is proper.

If the quantity of glue and solder paste is insufficient, components

cannot be placed securely, causing dislocation of components.

On the other hand, if the quantity is excessive, component may also

be dislocated because the placement plane differs in height.

Check whether the positional relation between glue or solder paste

and components is appropriate. *7

Check P.C.B.’s after component placement. If placement position has

deviated from the correct one in comparison with the patterns, cor-

rect the placement coordinates.

Check whether there is a factor that may cause vibration and

shock while a component placed P.C.B. is being transferred. *8

If the P.C.B. transfer chute is under abnormal condition, P.C.B.’s can-

not be transferred smoothly, causing positional deviation of place-

ment. If a P.C.B. is given a big shock while being pushed against the

P.C.B. stopper in the output machine, placed components may devi-

ate from the correct position.

Check for dust and dirt on the lenses. *1

Dust and dirt accumulated on the lenses may cause false recognition

frequently.

Check that dust and dirt are not included in the captured images.

If necessary, clean the lenses with a lens cleaner.

Check whether the lamps for component recognition are “ON”

normally. *2

Open the “COMPONENT RECOG LIGHTING” display and turn on

the lamps for component recognition. (Hierarchical Sequence: “SPE-

CIAL SEL.” Display → “UNIT ADJUSTMENT” Display → “REC-

OGNITION LIGHTING” Display → “COMPONENT RECOG

LIGHTING” Display)

Confirm that each unit for component recognition lighting illumi-

nates.

Check whether the parameters in the component library data are

set properly. *3

When appropriate parameters such as size and lighting are not set in

the component library data, false component recognition and posi-

tional deviation will occur frequently.

Make a component recognition test and check whether or not the pa-

rameters such as size and lighting are correctly set in the component

library data.

1.2.3 Deterioration of Accuracy at Component Recognition

Camera Section

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1. Cause and Remedy of Simple Trouble