Mitsubishi FR-A721-11K Instruction Manual page 139

Parameter List
Parameter
Encoder signal loss
376
detection enable/disable
selection
380 to 383
Refer to Pr. 29.
—
384 to 386
Refer to Pr. 291.
Position command source
419
selection
Command pulse scaling factor
420
numerator
Command pulse scaling factor
421
denominator
422
Position loop gain
423
Position feed forward gain
Position command acceleration/
424
deceleration time constant
Position feed forward
425
command filter
426
In-position width
427
Excessive level error
428
Command pulse selection
429
Clear signal selection
430
Pulse monitor selection
Digital position control
sudden stop deceleration
464
time
450
Refer to Pr. 71.
451
Refer to Pr. 80.
—
453, 454
Refer to Pr. 80.
455 to 463
Refer to Pr. 82.
132
Incre
Name
ments
1
1
1
1
-1
1s
1%
0.001s
0.001s
1 pulse
1
1
1
1
0.1s
Initial
Range
Value
0
Signal loss detection is invalid
0
Signal loss detection is valid
When the cable of the encoder signal is broken during
1 encoder feedback control, orientation control, or vector
control, signal loss detection (E.ECT) is activated to stop
the inverter output.
0
Simple position control function by contact input
1 Position command using pulse train input (FR-A7AL)
0
Simple position pulse train command by pulse train input
2
from the JOG terminal
1 0 to 32767
Set the electronic gear.
Pr. 420 is a numerator and Pr. 421 is a denominator.
1 0 to 32767
-1 -1
Set the gain of the position loop.
25s 0 to 150s
Function to cancel a delay caused by the droop pulses of
0% 0 to 100%
the deviation counter.
Used when rotation has become unsmooth at a large
0s 0 to 50s electronic gear ratio (about 10 times or more) and low
speed.
Enters the primary delay filter in response to the feed
0s 0 to 5s
forward command.
100 0 to 32767
The in-position signal (Y36) turns on when the droop
pulses become less than the setting.
pulse pulse
A position error excessive (E.OD) occurs when the droop
0 to 400K
pulses exceed the setting.
40K
9999 Function invalid
Pulse train + rotation signal
0 to 2
sign
0
Pulse train + rotation signal
3 to 5
sign
Deviation counter is cleared at trailing edge (at the
0
moment when H level is changed to L level)
1
1 eviation counter is cleared at L level
Description
0
The cumulative command
pulse value is displayed.
1
9999
2
The cumulative feedback
3 pulse value is displayed.
4
The droop pulses are
monitored.
5
9999 Frequency monitor is displayed.
Set the time until the inverter stops when the forward
0 0 to 360.0s
rotation (reverse rotation) command is turned OFF with
the position feed forward function.
Description
Negative logic
Positive logic
FR-DU07(FR-PU04/FR-
PU07)
display
Lower 4(5) digits
Upper 4(5) digits
Lower 4(5) digits
Upper 4(5) digits
Lower 4(5) digits
Upper 4(5) digits