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1.12 Supply and Placing Unit Functions 1.12.1 Offset When Picking Parts In order to be able to continually pick parts at the center of the part, the machine compiles statistics on how far off center in the X-direction pa…

processing” will display and the function key display will change to [CANCEL]. If

[CANCEL] is pressed during [S STOP] / [D STOP] processing, the system will return to

regular production.

However, [S STOP] / [D STOP] does not display during the clear off operation.

Stopping the machine after completing all the boards in the machine.

• Press [CLEAR OFF] during the automatic production. The board(s) in the machine (all

the boards on the XY-table, In-carrier and In-conveyor) are completed and sent to the

next machine, then the machine stops and the START button is enabled.

• Push the START button to resume operation.

Clear Off Operation

Use the [CLEAR OFF] command to halt production after production of all of the boards

in the machine are completed.

The [CLEAR OFF] command displays as a function key during automatic operation.

When this command is selected board acquisition from the previous machine is stopped,

all boards on the in-conveyor, in-carrier, and XY table are produced, continuous

production is halted after all boards have been unloaded to the next machine, and the

RESET button is enabled.

When this command is executed the message “Clearing off” will display and the

function key display will change to [CANCEL]. To cancel the clear off operation while it

is in progress, press [CANCEL] and production will return to normal production.

However, [S STOP] / [D STOP] does not display during the clear off operation.

Part 2 Chapter 1 Basic Operation

Edition 1.1 2-1-56 CP643E System Reference

1.12 Supply and Placing Unit Functions

1.12.1 Offset When Picking Parts

In order to be able to continually pick parts at the center of the part, the machine

compiles statistics on how far off center in the X-direction parts are being picked. This

information is then used to correct the pick-up position of parts subsequently picked

from the same device position. The three types of offset are described below.

• Automatic Offset

The results of vision processing are processed statistically and the pickup point is

changed accordingly. When a program is transmitted from the host computer or the

[CHANGE] command is used to change the program the offset values will all be

cleared.

These values are internally calculated automatically by the machine and cannot be

changed by the user.

• Device Offset in Proper Data (Device Offset 1 ~ 140)

If automatic offset is not functioning efficiently after a program has been changed,

such that pick-up from a specified device number is not possible, then Device Offset in

Proper data can be set to allow the part to be picked. Moreover, once Device Offset

has been set so that pick-up is possible, then the automatic offset operates to calculate

the center of the part.

• Parts Picking Offset in Part Data

When a part cannot be picked because of its peculiar shape, an offset can be specified

in Part Data to allow pick-up. Moreover, after the offset part is set so that it can be

picked, the automatic offset operates to calculate the center of the part.

Part 2 Chapter 1 Basic Operation

Edition 1.1 2-1-57 CP643E System Reference

1.12.2 Offset When Placing Parts

A total of 120 nozzles (6 nozzle types on 20 heads) can be fitted onto the machine. The

center placing point of each of these nozzles can in fact be misaligned based on the

accuracy with which the machine is assembled, the manufacturing accuracy of the parts,

or by nozzle bend. This misalignment is corrected by placing point offset values. The

different types of placing point offset values are as follows:

• Cam Speed Dependent Offset Y

Movement of the nozzle center in the Y-direction is compensated based on the cam

speed. (Cam speed 100, 90, 80, 70, 60)

• Nozzle Center Offset X

Movement of the nozzle center in the X-direction is compensated.

• Nozzle Center Offset Y

Movement of the nozzle center in the Y-direction is compensated.

• Nozzle Proper data X (A1 Place Offset X ~ T6 Place Offset X)

Amount of mechanical deviation of the X-coordinate placing point is compensated.

• Nozzle Proper data Y (A1 Place Offset Y ~ T6 Place Offset Y)

Amount of mechanical deviation of the Y-coordinate placing point is compensated.

Note: Refer to Chapter 3, “Command Descriptions“ in Part 3 “Commands” for command page

information concerning measurement of the nozzle center of rotation.

1.12.3 Tape End Display

When the supply of a part is about to run out the device number will display on the

monitor. Also, the signal tower lamp can be set to flash (the color depends on what is

entered in Proper data).

Clearing the tape end

When tape end is detected, the following actions will clear the status.

Program change: In joint mode and device change mode all devices must be cleared.

In changeover mode the tape and status of the device on the original

table must be cleared.

Parts Set switch: When parts run out during production in device change mode, once

the table has been loaded and the PARTS SET switch is set to

[COMPLETE], tape and status of the device on that table will be

cleared.

Tape End Detection switch:After the tape end the tape end sensor has detected the parts

again, the tape end status will be cleared.

Power ON: After the power has been turned on all the tape end displays will be

cleared.

Part 2 Chapter 1 Basic Operation

Edition 1.1 2-1-58 CP643E System Reference