SMC Networks LECSB2-T Series User Manual

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16. POSITIONING MODE
16.26 STOP METHOD AT SOFTWARE LIMIT DETECTION
Select a stop method of the servo motor for when a software limit ([Pr. PT15] to [Pr. PT18]) is detected with
the setting of the third digit in [Pr. PD30]. The software limit limits a command position controlled in the
driver. Therefore, actual stop position will not reach the set position of the software limit.
The software limit is disabled in the indexer method.
[Pr. PD30]
setting
Operation status
Remark
During rotation at constant speed
During deceleration to a stop
_ 0 _ _
(initial
value)
Erases the droop
pulses and stops the
motor.
Erases the home
position.
A difference will be
generated between
command position
and current position.
Perform a home
position return again.
_ 1 _ _
Erases the droop
pulse portion and
stops the motor.
Erases the home
position.
A difference will be
generated between
command position
and current position.
Perform a home
position return again.
_ 2 _ _
Decelerates to a stop
with the deceleration
time constant
currently selected
with the point table or
the program.
Continues operation
for a delay portion of
the S-pattern
acceleration/decelera
tion time constants.
Keeps the home
position.
_ 3 _ _
Erases the droop
pulse portion and
stops the motor.
Continues operation
for a delay portion of
the S-pattern
acceleration/decelera
tion time constants.
Keeps the home
position.
Stop method selection at software limit detection
0: Quick stop (home position erased)
1: Slow stop (home position erased)
2: Slow stop (deceleration to a stop by deceleration time constant)
3: Quick stop (stop by clearing remaining distance)
[Pr. PD30]
Servo motor speed
(linear servo motor speed)
0 r/min
(0 mm/s)
Software limit detection
No S-pattern acceleration/
deceleration
With S-pattern acceleration/
deceleration
Servo motor speed
(linear servo motor speed)
0 r/min
(0 mm/s)
Software limit detection
No S-pattern acceleration/
deceleration
With S-pattern acceleration/
deceleration
Servo motor speed
(linear servo motor speed)
0 r/min
(0 mm/s)
Software limit detection
Part of droop
pulses
No S-pattern acceleration/
deceleration
With S-pattern acceleration/
deceleration
Servo motor speed
(linear servo motor speed)
0 r/min
(0 mm/s)
Software limit detection
Part of droop
pulses
No S-pattern acceleration/
deceleration
With S-pattern acceleration/
deceleration
Servo motor speed
(linear servo motor speed)
0 r/min
(0 mm/s)
Software limit detection
Acceleration/
deceleration
time constant
+
S-pattern
acceleration/
deceleration
time constant
Decelerates to stop.
Acceleration/
deceleration
time constant
No S-pattern acceleration/
deceleration
With S-pattern acceleration/
deceleration
Servo motor speed
(linear servo motor speed)
0 r/min
(0 mm/s)
Software limit detection
Continues
deceleration
to stop.
No S-pattern acceleration/
deceleration
With S-pattern acceleration/
deceleration
Servo motor speed
(linear servo motor speed)
0 r/min
(0 mm/s)
Part of droop
pulses
Part of S-pattern
acceleration/
deceleration time
constants
+
Part of droop
pulses
No S-pattern acceleration/
deceleration
With S-pattern acceleration/
deceleration
Software limit detection
Servo motor speed
(linear servo motor speed)
0 r/min
(0 mm/s)
Software limit detection
Part of S-pattern
acceleration/
deceleration time
constants
+
Part of droop
pulses
Part of droop
pulses
No S-pattern acceleration/
deceleration
With S-pattern acceleration/
deceleration

SMC Networks LECSB2-T Series Specifications

General

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