SYS-CP842-1.1E.pdf - 第58页
SYS-CP842-1.1E 3.Machine System CP-842E / CP-842ME System Reference 49 Procedure 1. At the [Main] screen press [Ma intenance], th en press [Configuration] - [Statistical Nozzle Skip]. 2. At the [Statistical Nozzle Skip] …
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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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.
3.Machine System SYS-CP842-1.1E
50 CP-842E / CP-842ME System Reference
3.1.6 Supply Unit Functions
Parts are supplied to the pick-up position from the two device pallets moving back and forth
on the D-axis at the rear of the CP-842E/842ME. This section describes functions related
to the supply of parts to the machine.
Loading and Unloading Device Pallets (CP-842ME Option)
The CP-842ME employ a pallet system for loading and unloading batches of feeders. Each
device pallet (device table) is loaded into the machine using the Pallet Change Unit (PCU).
The device table is moved to the production area for the supply of parts for assembly.
Commands at the machine are used to change a used device pallet with a fresh one.
Procedure
1. At the [Main] screen, press [Change Pallet] to display the [Pallet Change] screen.
2. Select the side of the machine to be changed ([Stage 1 Start] or [Stage 2 Start]). The
START button is enabled if the PCU is docked to receive the current device table, and
the safety cover on that side is closed. If one or both of these conditions are not
satisfied, the machine displays a message telling the operator what action is necessary.
3. Press the START button to execute the changeover. The guidance area for that device
pallet describes the current operation. When the pallet is unclamped, open the safety
door and exchange device pallets using the PCU.
Note: Do not press [Close] at this screen until the changeover is complete.
4. Close the safety cover when the new device pallet is in the machine. The machine
automatically clamps the new device pallet and requests the operator to press [Stage 1
Set] ([Stage 2 set]) to complete the operation. When [Stage 1 Set] ([Stage 2 Set]) is
pressed, the device pallet is ready to be used in production. To clear the ‘Set’ status of
the pallet, press [Stage 1 Clear] ([Stage 2 Clear]).