Mitsubishi FR-A721-11K Instruction Manual page 138

Parameter
Name
Completion signal output
363
delay time
364
Encoder stop check time
365
Orientation limit
366
Recheck time
Number of encoder pulses
369
Orientation selection
393
Orientation speed gain (P
396
term)
Orientation speed integral
397
time
Orientation speed gain (D
398
term)
Orientation deceleration
399
ratio
359
Encoder rotation direction
367
Speed feedback range
368
Feedback gain
369
Number of encoder pulses
374
Overspeed detection level
Incre Initial
Range
ments Value
The orientation complete signal (ORA) is output
delaying the set time after in-position zone is entered.
0.1s 0.5s 0 to 5s
Also, the signal turns off delaying the set time after
in-position zone is out.
Orientation fault signal (ORM) is output when the
encoder remains stopped for the set time without
orientation completion in the state where no
0.1s 0.5s 0 to 5s orientation complete signal (ORA) is output. ORM
signal is output when orientation is not completed
again in the set time in the state where ORA signal is
output.
Measure the time taken after passing the creep
switchover position and output the orientation fault
0 to 60s
signal (ORM) if orientation is not completed within the
1s 9999
set time.
9999 Set to 120s.
Turning off the start signal with orientation command
(X22) on after stopping the motor by orientation
0 to 5s control, the present position is checked again after the
0.1s 9999
set time elapses and the orientation complete signal
(ORA) or orientation fault signal (ORM) is output.
9999 Not checked.
Set the number of pulses of the encoder.
1 1024 0 to 4096
Set the number of pulses before multiplied by four.
Orientation is executed from the current rotation
0
direction.
Orientation is executed from the forward rotation
1 0 1
direction.
Orientation is executed from the reverse rotation
2
direction.
1 60 0 to 1000
Servo rigidity is (response level during position
control loop) at orientation stop can be adjusted.
0.001s 0.333s 0 to 20.0s
0.1% 1% 0 to 100.0% Lag/advance compensation gain can be adjusted.
Make adjustment when the motor runs back at
1 20 0 to 1000
orientation stop or the orientation time is long.
0
1 1
1
0 to 400Hz Set the range of speed feedback control.
0.01Hz 9999
9999 Encoder feedback control is invalid
0.1 1 0 to 100 Set when the rotation is unstable or response is slow.
Set the number of pulses of the encoder.
1 1024 0 to 4096
Set the number of pulses before multiplied by four.
When the motor speed reaches or exceeds the speed
set in Pr.374 during encoder feedback control, Real
0.01Hz 140Hz 0 to 400Hz
sensorless vector control, or vector control, over
speed (E.OS) occurs and stops the inverter output.
Parameter List
Description
CW
A
Encoder
Clockwise direction as viewed
from A is forward rotation
CCW
A
Encoder
Counter clockwise direction as
viewed from A is forward rotation
4
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