CP643 系统参考.pdf - 第79页
• Error Recovery Counter Each device number is registered in the counter, and every error is registered and sorted by device number. Each error increases the counter by one. If a part is determined as good this counter i…
Device Change Mode
Tables 1 and 2 are used separately. A maximum of 70 devices is possible on each table.
Either table 1 or 2 can be used, and the table not in use is referred to as the spare table.
This mode can be used to eliminate down time on the production line.
Changeover Mode
Tables 1 and 2 are used separately. A maximum of 70 devices is possible on each table.
Either table 1 or 2 can be used and the other table can be prepared for use with the next
production program.
When the program is changed the next device table moves to its part picking position.
The table used until now moves to its resupply position.
This is useful for when the operator has many small production runs.
Command Pass: [SET] - [STATUS] - [T MODE] - [CHANGE]
Note: For Device Change and Changeover modes, press [TABLE1] or [TABLE 2] to select the
production table.
1.3.4 Parts Error Handling
When a part cannot be picked, or when a part is judged to be defective, the same type of
part is picked again at the next opportunity. This is called recovery. Recovery mode can
be set in host computer status data or at the machine by pressing [SET], [STATUS],
[RECOVERY] and [CHANGE]. There are three types of recovery modes: auto recovery,
error stop and error pass, each of which are explained below.
Auto Recovery
If a part is rejected during inspection or if the part is not picked, the device number is
recorded in the error recovery counter, and the recovery operation is automatically
carried out. When the error recovery counter exceeds a preset number, the machine
stops. The error recovery counter number can be set either through host computer or by
pressing: [SET], [STATUS], [RECOVERY] and [TIMES].
[Example] If the counter is set at two, the machine will stop when a part at the same
device number is mispicked three times.
Table 1 Table 2
CP643S2009D
Machine display : " 2B 1A"
Device currently in use Device to be used in next production
Table 1 Table 2
CP643S2009C
Original Table Spare Table
Machine display : "2A 1A"
Part 2 Chapter 1 Basic Operation
Edition 1.1 2-1-21 CP643E System Reference
• Error Recovery Counter
Each device number is registered in the counter, and every error is registered and
sorted by device number. Each error increases the counter by one. If a part is
determined as good this counter is cleared. However, when the number of part errors
or missing parts for any given device number reaches a preset number the machine
stops.
• After a Recovery Limit Error
After the error recovery counter reaches its preset number the machine stops when the
head with the defective part reaches station 8. In this case, it is likely that sequences
for the same part have been allocated to other heads (between station 1 and 7) which
will also cause an error. To ensure the same error does not recur for part which has be
resupplied (when the machine is restarted), the error count is ignored for these parts.
• Next Device
If the error recovery counter reaches its preset number and a next device has been
specified, the next device will be used to supply parts. For detailed information
related to the next device function refer to section 1.20 “Next Device” of this chapter.
• Device Change Mode
When the error recovery counter reaches its preset number while operating in device
change mode, the other table will be used if parts have been set. For detailed
information refer to sub-section 1.3.3 “Setting the Device Table Mode” of this chapter.
• Large Parts Pick-up Check
At Station 2 the machine can check whether or not large parts have been picked. If the
results of this check indicate that a part has not been picked, the machine immediately
stops. In this case the machine stops after the first missing part is detected without
regard to the number of recovery times. Recovery is carried out when the machine is
restarted.
• Clearing the Counters After Program Change
In device change mode and joint mode, all the device number counters will be cleared.
In changeover mode, only the table which has been set as the original table will be
cleared.
Error Stop
In this mode, when parts out or an error is detected the machine will stop every time.
After the START button is pressed, a recovery operation will be carried out. Even when
operating in device change mode or when using the next device function, device change
is not carried out and the detection of an error or of parts out will halt operation.
Error Pass
In this mode, when parts out or an error is detected the machine will not stop. A
recovery operation will not be carried out. Even when operating in device change mode
or when using the next device function, device change is not carried out and operation
continues.
Part 2 Chapter 1 Basic Operation
Edition 1.1 2-1-22 CP643E System Reference
Insertion of Recovery Sequence
If a vision processing error occurs or there are no parts and the machine is set to carry
out a recovery operation, the recovery sequence will be inserted either 6 or 15 sequences
later.
If an error occurs between station 17 ~ 2 then recovery processing takes place at station 2
(this is done 6 sequences later however, this recovery processing does not include such
things as parts being discarded due to an emergency stop).
When an error occurs between station 3 ~ 10, recovery processing for such things as the
discarding of parts due to an emergency stop takes place at station 11 (15 sequences
later).
ST1
ST2
ST3
ST4
ST5
ST6
ST7
ST8
ST9
ST10
ST11
ST12
ST13
ST14
ST15
ST17
ST18
ST19
ST20
ST16
ST11: 15 sequences later
Recovery sequence
inserted at station 16
ST2: 6 sequences later
CP643S2009E
Part 2 Chapter 1 Basic Operation
Edition 1.1 2-1-23 CP643E System Reference