SMC Networks LECSB2-T Series - 17.8.5 When the point table setting value is incorrect

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17．Positioning mode (pushing operation)
(2)Timing chart
Wrong positioning start position (Starts point table positioning operation from current position of
10.00)
17.8.5 When the point table setting value is incorrect
[AL7F.3] occurs if the push limit position setting of the point table is incorrect.
If the position data of the point table data / Push limit position is set incorrectly, [AL7F.3] will be
generated after the start signal (ST1) is turned on, the positioning starts and the command position
reaches the pushing start position.
In this case, correct the position data in the point table data of the pushing operation.
(1)Point table setting example
a) For positioning operation (absolute value command method) and pushing operation (absolute
value command method)
Point
table
No.
Position data /
Pushing limit
position
[10^stm μm]
Servo motor
rotation speed /
speed limit value
[r/min]
Acceleration
time
constant
[ms]
Deceleration
time
constant
[ms]
Dwell
[ms]
Auxiliary
function
M code
Pushing
torque
[0.1%]
Point table
No.
1
8.00
3000
100
150
0
1
0(Note1)
0(Note1)
2
4.00
500
0(Note1)
0(Note1)
0(Note1)
16
0(Note1)
500
3
0
2000
100
300
0
0
15
disabled
Note1: The set value of the point table becomes invalid. Refer to section 6.1.3 of this specification
for details.
b) For positioning operation (absolute value command method) and pushing operation (incremental
value command method)
pushing
object
Motor
position address
Table
Ball screw
(origin)
pushing start position
Incorrectly set
push limit position
(Missed swing detection
position)
pushing start position
(Push-back detection position)
Incorrectly calculated
pushing range
current position
Invalid pushing operation pattern