YS100_Mainte_E - 第58页

2-2 2 Daily maintenance items 1. Checking the nozzle Solder sticking to the nozzle tip or a clogged nozzle hole can cause component pickup errors and recognition errors. Poor nozzle spring action can also cause pickup an…

2-1

Daily maintenance items

Before beginning work

In most cases, maintenance should be performed with the machine’s power turned Off.

However, some maintenance works are performed under emergency stop conditions with the machine’s power

turned on. In such cases, ensure adequate safety and press the emergency stop button before beginning the

maintenance.

The power is turned on during maintenance when moving axes or machine operation check are required

depending on the maintenance work while the machine’s power turned on.

In the case also, ensure adequate safety before beginning the maintenance.

Make sure that the following conditions are met when operating the machine.

Operating conditions

1. Supply air pressure is kept at correct pressure.

2. All safety covers are closed.

3. All feeder exchange carriages are securely clamped when they are used with the machine.

4. Nozzles and other units are attached in place.

NOTE

The description "Cancel the emergency stop." is in the procedures of this manual. It means "releasing the emergency

stop and pressing the [Ready] button to turn the servo on".

2-2

Daily maintenance items

1. Checking the nozzle

Solder sticking to the nozzle tip or a clogged nozzle hole can cause component pickup errors and

recognition errors. Poor nozzle spring action can also cause pickup and mounting errors. To prevent such

problems periodically inspect and clean each nozzle.

1.1 Check with software

How to check for a dirty nozzle (with the [Tip Dirt Check] button)

The term "dirty nozzle" as used here indicates shiny material such as solder adhering to the nozzle tip. This

shiny portion might be mistaken for a component and cause recognition errors. [Tip Dirt Check] is a tool that

judges the nozzle contamination status by recognizing the nozzle tip in the non-component status with the

camera.

NOTE

[Tip Dirt Check] is a function that recognizes the reﬂection of the light around the nozzle center. The applicable nozzles

are those with a small tip, such as 301A(F), 302A(F), and 311A(F).

NOTE

Since the nozzle speciﬁcation may vary depending on

the machine, some machines may require additional

settings. For details about settings, contact YAMAHA

sales representative.

(Without nozzle station) Replace

the nozzle.

1. Press the [Required Nozzles] button on

the [Setup] screen to check the nozzle to

be used for the production.

2. Press the emergency stop button to open

the machine safety cover.

3. Attach the nozzle to be used for the

production to the head.

4. Close the machine safety cover and

cancel the emergency stop.

NOTE

If the machine is equipped with the nozzle station, skip

Step 1.

Press the [Tip Dirt Check] button.

Press the [Tip Dirt Check] button on the

[Setup] screen.

54200-L1-10

Select the item to be executed.

After checking the displayed message,

select the desired button.

When [Yes] was selected

Performs auto nozzle change and checks all relevant

nozzles.

When [No] was selected

Checks relevant nozzles of all nozzles currently

attached to the head.

54201-L1-10

Check the message.

Check the message, and when it is “NG”,

clean the nozzle by referring to "2.1 Cleaning

the nozzle air path" in Chapter 3. In case of

the FNC nozzle, clean the nozzle by referring

to "2.2 Cleaning FNC nozzles" in Chapter 3.

Selecting the item to be executed

Step 3

When [No] was selected

Pressing the [Check Nozzles] button

Step 2

[Tip Dirt Check] button

2-3

Daily maintenance items

How to check for clogged nozzles (on the [Unit]-[Head] screen)

The term "clogged nozzle" used here indicates that material such as solder is adhering to the nozzle hole, causing a rise

in negative pressure even if no component is being picked up by the nozzle. This state might cause problems such as

component mounting errors. The following describes the checking procedure for clogged nozzles using Type 302A

nozzles as an example.

NOTE

The vacuum level when nozzle is open, which is the criterion for clogged nozzle, varies depending on the nozzle types.

See the next page for the vacuum level when nozzle is open other than Type 302A nozzle.

Attach the nozzle.

Press the emergency stop button, and

attach Type302A(F) nozzle (in case of FNC,

302F nozzle) to all heads.

If the machine is equipped with a nozzle

station, press the [Nozzle Change] button to

replace the nozzles.

54204-L1-10

Reset the numerical figure.

Open the [Unit] - [Head] screen. Then press

the [Reset] button on the lower right of the

screen to reset the pickup level values.

Generate negative pressure.

On the [Unit] - [Head] screen, set the

[Vacuum] buttons for all heads to ON. When

this value starts rising, wait 5 to 10 seconds

and set to OFF.

Check the vacuum levels.

Read the value of the “Maximum value”

displayed in red on the screen of the head.

It is a normal range when the read value is

80 to 120 or below (in case of 302F, 90 to

130).

When the number is above the range, the

nozzle hole may be dirty, clean the nozzle

by referring to "1.1 Inspecting and cleaning

the nozzles" in Chapter 3.

In case of the FNC nozzle, clean the nozzle

by referring to "2.2 Cleaning FNC nozzles" in

Chapter 3 also.

54205-L1-10

NOTE

If a correct value cannot be obtained after cleaning even after performing steps 1 to 4, then the interior of the spline

shaft might be dirty.

Negative pressure generation

Step 1 to 3

[Nozzle Change] button[Vacuum] button [Reset] button

Negative pressure check

Step 4

Max value