M3plus_OperationManual_e.pdf - 第55页

2 - 22 2 Basic oper ation 4. Starting and finishing production Monitor: Detail The [Monitor]-[Detail] tab screen shows you the detailed production status of the current production PCB data. Monitor: Detail 27306-5E-20 St…

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Basic operation

4. Starting and finishing production

Working Ratio

This is the machine unit's working ratio. This ratio is not affected by the status of the upstream and

downstream machines, and is calculated with the following expression. Generally, the mounter

working ratio is 40 to 70%.

Cumulative mounting time + cumulative transfer time

[

(Production completion time - setup completion time)

- cumulative standby time

]

× 100

Working ratio (%)

Cumulative mounting time : Total time that head is operating

Cumulative transfer time : Total transfer time (loading/unloading)

Cumulative standby time : Total time upstream or down stream machine stands by

Production completion time : Time changed to next production PCB

Setup completion time : Time [START] button was pressed and operation started

[Reset]

Resets the production control information, including each data and current production quantity,

current unloader quantity, scheduled production quantity and scheduled unloader quantity. The

"Board Counter" value on the [Setup] screen is also reset when this production data is reset.

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Basic operation

4. Starting and finishing production

Monitor: Detail

The [Monitor]-[Detail] tab screen shows you the detailed production status of the current production

PCB data.

Monitor: Detail

27306-5E-20

Start Time

Shows the time that production was started (time that board selection was completed). The quantity

is normally zero boards.

Last Production Time

Shows the display data update time. The quantity is the number of PCBs produced up to the present

time.

Estimated End Time

Shows the estimated production end time. The quantity is the scheduled production quantity input on

the [Setup] screen. Note that this will be blank if the scheduled production quantity has not been

input.

Supply Time (sec/board)

Shows the average loading time per board.

Delay Time (sec/board)

Shows the time that the machine has waited for PCB loading. Note that when the machine is

mounting components, the delay time will not be counted even if the PCB is standing by. The

average delay time per board or the cumulative delay time can be displayed by pressing the [Unit

Change] button.

Rest (boards)

This is the value obtained by subtracting the production completed board quantity from the scheduled

production quantity.

Assemble Time (sec/board, sec/block, sec/chip)

Shows the time for mounting the board. This time includes the mark recognition (fiducial, bad mark,

etc.), component pickup, component recognition, mounting, dispensing, retry operation, nozzle

change and component dump time, etc. The average time per board, average time per block or the

average time per chip can be displayed by pressing the [Unit Change] button.

Error Stop Time (sec/board, sec)

Shows the time that the machine has been stopped with an error, and is the total from when the error

occurs to when the [CLEAR] button is pressed. Note that the time for recovery is not included. The

average error stop time per board or the cumulative error stop time can be displayed by pressing the

[Unit Change] button.

Output Time (sec/board)

Shows the average unloading time per board.

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Basic operation

4. Starting and finishing production

Delay Time (sec/board, sec)

Shows the time that the machine has waited for PCB unloading. Note that when the machine is

mounting components or the upstream machine is standing by for supply, the delay time will not be

counted even if the PCB is standing by for unloading. The average unloading delay time per board or

the cumulative unloading delay time can be displayed by pressing the [Unit Change] button.

Finished (boards)

Shows the quantity of finished PCBs.

Max. Output

board/h

This is the number of PCBs that can be produced in an hour. This is calculated in reverse from the

average mounting time and average transfer time. Note that the PCB supply delay time and error

stop time are not included.

block/h

This is the number of blocks that can be produced in an hour. This is calculated in reverse from the

average mounting time and number of blocks per board in the PCB information.

chip/h

This is the number of chips that can be produced in an hour. This is calculated in reverse from the

"Cycle Time (sec/chip)" displayed on the [Main] tab screen.

[Reset] button

Resets the production control information, including the various data, current production quantity,

current unloader quantity, scheduled production quantity and scheduled unloader quantity displayed

on the screen. The "Board Counter" value on the [Setup] screen is also reset when this production

data is reset.