CP643 系统参考.pdf - 第117页

1.12.5 Backlight and Frontlight Vision processing is carried out at Station 6. The lighting format can be selected as either a backlight or a frontlight format. Details on setting the type of lighting system in Proper an…

1.12.4 Large Parts Pick-up Check

Inspection of whether or not the mounting parts have been picked up from the feeder is

performed at STN2. If pickup cannot be confirmed, the line stops immediately and a

device check is performed. If it is the end of the tape, "Parts out" is displayed. If it is not

the end of the tape, "Pickup miss" is displayed. This function is set in Part Data, allowing

it to be selected for each part type. If a part could not be picked and recovery is not set to

"error pass", the machine will attempt the recovery process at station 2 after 6 sequences.

How to set Part Data:

[PART DATA] Carrying_data

Carrying_data

14. Pickup_check : This data item chooses whether or not a large part pick-up check

will be carried out.

[Example] 14. Pickup_check Stop

1. Start the VPD.

2. Open the “Part Type Data” in the relevant part data.

3. At the [Pick up] - [Check] item, specify whether or not a large part pick-up check is to

occur.

Caution: The large parts pick-up check function is only concerned with parts whose thickness

exceeds 1 mm. The check function is not carried out for parts with a thickness

(registered in Part Data) of less than 1 mm.

Part 2 Chapter 1 Basic Operation

Edition 1.1 2-1-59 CP643E System Reference

1.12.5 Backlight and Frontlight

Vision processing is carried out at Station 6. The lighting format can be selected as either

a backlight or a frontlight format.

Details on setting the type of lighting system in Proper and Part Data follow:

[Proper]

138. Front Light : Specifies whether or not front lighting is used.

Non: . . Not fitted

Use: . . Fitted

Note: “Use” is specified in standard specification systems.

[PART DATA]

Vision_data

13. Lighting : This item selects which lighting will be used.

0: Back_Light

1: Front_Light

4: Side_Light . . . . . (Option: Special front light)

Caution: “2” and “3” lighting settings are not used on the CP643E.

Note: If ‘Lighting’ is set to “2” or “3”, operation for “0” (Back_light) is carried

out.

1. Start the VPD.

2. Open the “Part Type Data” in the relevant part data.

3. At the [Camera] - [Lighting] item, specify the desired part image acquisition format.

Part 2 Chapter 1 Basic Operation

Edition 1.1 2-1-60 CP643E System Reference

1.12.6 Next Board Supply Timing

The use of a new board transport mechanism provides an improved cycle time over the

conventional board transport system. If the board were transferred from the in-conveyor

to the in-carrier after the completion of production, the cycle time would be the same as

the conventional one.

It is necessary for the next board to already have been transported on the in-carrier at the

completion of production by the way of the instruction for the next board to be

transported during production. The standard timing is 40 sequences prior to the last

sequence but it is possible to change this in the program depending on such things as the

total number of sequences and the cycle time. (If this is set to “0” transport will not

begin until two boards are completed.)

1.12.7 Placing Sequence Assignment When Next Production Starts

In conjunction with the use of a new board transport mechanism to realize an improved

cycle time over the conventional board transport system, production efficiency has also

been improved through a timing change in the assignment of sequences for production

of the next board.

Until now, sequences were assigned in order with the first sequence assigned to ST16 at

the time production of the next board began (when pre-picking began). The first

sequence for the next board (pre-pick sequence) is now assigned to ST16 when the vision

processing of the last sequence has been completed and recovery sequences have been

eliminated.

Conditions for assigning pre-pick sequences

Pre-picking is carried out when all of the conditions below have been met.

• Normal vision processing result returned for the last sequence (ST8)

• No recovery sequences

• Number of boards to be supplied next has been determined

• No block skip marks

• Not in turnover production

If the above five conditions are not satisfied, sequence assignment is carried out, just as it

has been until now, when production of the next board starts.

Maximum number of pre-pick sequences

Since the vision processing result of the last sequence is determined at ST8 and the first

sequence for the next board is assigned to ST16, the maximum number of pre-pick

sequences is four.

If recovery has occurred

If recovery takes place the pre-pick sequences assigned to the head are cleared and

normal recovery sequence processing is carried out. Pre-pick parts are not used for

recovery.

Part 2 Chapter 1 Basic Operation

Edition 1.1 2-1-61 CP643E System Reference