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Errors during Teaching
Related Bits
Name
Model
Teaching
MC421
n+3
MC221
n+3
Teaching
MC421
n+3
Type
MC221
n+3
Teaching
MC421
n+23
Completed
MC221
n+15
Teaching
MC421
n+23
Error
MC221
n+15
Teaching
MC421
n+23
Address
MC221
n+15
Overflow
Using the Teaching Box
10-4 Errors during Teaching
10-4-1 Teaching Error Flag Timing Chart
492
The following table shows related bits in the PLC Interface Area for performing
teaching.
Refer to 10-4 Errors during Teaching for information on teaching errors and
teaching address overflow errors.
Word
Task 1
Task 2
Task 3
n+5
n+7
n+5
---
n+5
n+7
n+5
---
n+27
n+31
n+19
---
n+27
n+31
n+19
---
n+27
n+31
n+19
---
After pressing "TEACH" to set the position data address, press "WRITE" and
"YES." Refer to the Teaching Box Operation Manual (W320) for details.
This section provides information on examples of teaching errors, taking task
1 as an example.
An error will occur and the Teaching Error Flag (n+15 bit 14) will be turned ON
in the following cases when performing teaching.
• Teaching is executed, but the origin has not been established. If even one
of the axes in the task has not been established, the present position data
for all of the axes will not be stored in the position data addresses and the
teaching address will not be changed.
• The teaching address is not within the acceptable range (0 to 1999). The
teaching address will not be changed if the value is incorrect.
Teaching Bit
(n+3, 09)
Teaching Completed Flag
(n+15, 13)
Teaching Error Flag
(n+15, 14)
Bit
Task 4
n+9
09
: Starts teaching.
---
n+9
10
1: Present position (feedback value)
---
0: Target position
n+35
13
: Teaching has been completed.
---
: Teaching command is OFF.
n+35
14
: A teaching error occurred.
---
: OFF when the next teaching
command is completed normally
or teaching address setting is
completed.
n+35
15
: The teaching address was too
---
high.
: OFF when the next teaching
command is completed normally
or teaching address setting is
completed.
Section 10-4
Description
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