SMC Networks LECSB2-T Series User Manual

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17．Positioning mode (pushing operation)
17.8.2 Push-back operation detection
If the current position reaches the Pushing start position during the pushing operation, a Pushing error
occurs, and the servomotor stops due to the dynamic brake (DB) stop (alarm [AL7F.2 Push back error]
occurs) or the servo lock stops (position lock). Stop. 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.
Push-back detection position：Pushing start position
(Determined by the position data of the point table immediately before the
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 →
(Push-back
detection
position
8.00)
3000
100
150
0
1
0(Note1)
0(Note1)
2
12.00
500
0(Note1)
0(Note1)
0(Note1)
16
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.。
pushing
object
Motor
position address
Table
Ball screw
(origin)
pushing start position
pushing start position
(Push-back detection position)
push limit position
(Missed swing detection
position)
pushing range
current position
command position
servo lock stop
required torque for servo lock

SMC Networks LECSB2-T Series Specifications

General

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