7. PARAMETERS
7 - 34
7.2.7 Stop method at software limit detection
By setting the third digit in [Pr. PD12], select a stop method of the servo motor for when a software limit ([Pr.
PT15] to [Pr. PT18]) is detected. With the software limit, a command position controlled in the servo amplifier
is limited. Therefore, actual stop position will not reach the set position of the software limit.
Stop method selection at software limit detection
1: Slow stop
2: Slow stop (deceleration to a stop by deceleration time constant)
3: Quick stop (stop by clearing remaining distance)
[Pr. PD12]
[Pr. PD12]
setting
Operation status
Remark
During rotation at constant speed
During deceleration to a stop
_ 1 _ _
(initial
value)
Servo motor speed
0 r/min
(0 mm/s)
Software limit detection
Droop pulses
No S-pattern acceleration/
deceleration
With S-pattern acceleration/
deceleration
Servo motor speed
0 r/min
(0 mm/s)
Software limit detection
Droop
pulses
No S-pattern acceleration/
deceleration
With S-pattern acceleration/
deceleration
The servo motor stops
after having traveled
for the droop pulses.
The home position is
maintained; however,
there is a difference
between the command
and current positions.
Perform a home
position return again.
_ 2 _ _
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
0 r/min
(0 mm/s)
Software limit detection
Continues
deceleration
to stop.
No S-pattern acceleration/
deceleration
With S-pattern acceleration/
deceleration
The servo motor
decelerates to a stop
with the deceleration
time constant currently
selected with the point
table.
The operation is
continued for the delay
of the S-pattern
acceleration/decelerati
on time constants. The
home position is
maintained.
There is no difference
between the command
and current positions.
_ 3 _ _
Servo motor speed
0 r/min
(0 mm/s)
Droop pulses
Part of S-pattern
acceleration/
deceleration time
constants
+
Droop pulses
No S-pattern acceleration/
deceleration
With S-pattern acceleration/
deceleration
Software limit detection
Servo motor speed
0 r/min
(0 mm/s)
Software limit detection
Part of S-pattern
acceleration/
deceleration time
constants
+
Droop pulses
Droop pulses
No S-pattern acceleration/
deceleration
With S-pattern acceleration/
deceleration
The servo motor stops
after having traveled
for the droop pulses.
Operation is continued
for the delay of the S-
pattern
acceleration/decelerati
on time constants. The
home position is
maintained.
There is no difference
between the command
and current positions.
Содержание MR-J4-_GF
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