SYS-CP842-1.1E.pdf - 第57页
3.Machine System SYS-CP842-1.1E 48 CP-842E / CP-842ME System Reference Skipping Nozzles Automatica lly (Statistic al Processing ) The machine can be set to automatica lly skip nozzles which have a high rate of error . Us…
SYS-CP842-1.1E 3.Machine System
CP-842E / CP-842ME System Reference 47
The operator can manually skip a nozzle using the following procedure. This procedure can
also be used to change the other nozzle statuses.
Procedure
1. Press [Nozzle Skip] at the [Main] screen. The [Nozzle Skip] screen displays.
2. There is one button for each nozzle and the status of the nozzle is indicated by its color.
A key to the status colors is shown below the table.
3. To skip a nozzle manually press the [OK] button for that nozzle. “OK” switches to “MS”
(Manual Skip). Manually skipped nozzles or nozzles automatically skipped can be
returned to an [OK] status by pressing the button for that [MS], [CS], or [SS] status
nozzle.
MS (Manual Skip): The operator has manually eliminated that nozzle from
assembly.
CS (Check Skip): The nozzle was rejected during a nozzle check.
SS (Statistical Skip): The nozzle was eliminated from assembly through statistical
processing.
3.Machine System SYS-CP842-1.1E
48 CP-842E / CP-842ME System Reference
Skipping Nozzles Automatically (Statistical Processing)
The machine can be set to automatically skip nozzles which have a high rate of error. Users
can set a limit to the rate of errors (pick-up or inspection) caused by a particular nozzle. If
this limit is reached, the nozzle is skipped.
Nozzle statistical processing is based on a cumulative nozzle error count which is cleared
if the nozzle in question performs 16 consecutive successful pick and place attempts. If the
error limit is reached before the error count is cleared, that nozzle is skipped.
Consider the following example where the error limit has been set to 4. Nozzle cycles
where a pick-up or inspection error occurred are marked with 5, nozzle cycles where the
part is successfully picked and placed are marked with 3.
In the case above, the nozzle in question is skipped when the fourth error occurs. The
machine can be set to automatically test the skipped nozzle again (Reject Nozzle Check).
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Part
Status
Successful
Attempt Count
Error
Attempt Count
16 consecutive successful
attempts clears the error count.
4 errors occur before the error
count is cleared, and the nozzle
is skipped.
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SYS-CP842-1.1E 3.Machine System
CP-842E / CP-842ME System Reference 49
Procedure
1. At the [Main] screen press [Maintenance], then press [Configuration] - [Statistical Nozzle
Skip].
2. At the [Statistical Nozzle Skip] settings screen, press [On] to enable the statistical
monitoring of nozzles.
3. To change the error rate, press [Error Limit]. Input the error limit at the numeric keypad.
4. At Stop, set a limit to the number of nozzles which can be skipped at each holder before
the machine stops. The machine will not stop if the limit is set to 0.
5. Press [Close] enter the settings and return to the [Configuration] screen.