SMC Networks LECSB2-T Series User Manual

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17．Positioning mode (pushing operation)
17.8.1 Missed swing motion detection
If the current position reaches the Push limit position during the pushing operation, a Pushing error occurs
and the motor stops due to dynamic brake (DB) stop (alarm [AL7F.1 Missed swing error] occurs) or servo
lock stop (position lock). To do.
Select the stop method in parameter setting ([Pr.PS01] “_ _ _ x”).
The pushing range is determined by the position data of the point table data / Push limit position.
Missed swing detection position：Push limit position (Determined by Push limit position in pushing
operation point table)
(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%]
1
8.00
3000
100
150
0
1
0(Note1)
0(Note1)
2
12.00 →
(Missed swing
detection
position
12.00)
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)
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%]
1
8.00
3000
100
150
0
1
0(Note1)
0(Note1)
2
4.00 →
(Missed swing
detection position
8.00＋4.00=12.00)
500
0(Note1)
0(Note1)
0(Note1)
18
0(Note1)
500
3
0
2000
100
300
0
0
15
0(Note1)
Note1： The set value of the point table becomes invalid. Refer to section 6.1.3 of this specification
for details.
Motor
position address
Table
Ball screw
(origin)
pushing start position
pushing start position
(Push-back detection position)
pushing range
push limit position
(Missed swing detection
position)

SMC Networks LECSB2-T Series Specifications

General

Brand	SMC Networks
Model	LECSB2-T Series
Category	DC Drives
Language	English