Mitsubishi Electric FR-A720-0.4K Instruction Manual page 130

Parameter
Name
286
Droop gain
Droop filter time
287
constant
Droop function
288
activation selection
Pulse train I/O
291
selection
Input pulse division
384
scaling factor
Frequency for zero
385
input pulse
Frequency for
386
maximum input pulse
292, 293
Refer to Pr. 61.
—
294
Refer to Pr. 261.
—
296
Password lock level
Password lock/
297
unlock
299
Refer to Pr. 57.
—
Incre- Initial
Range
ments Value
0 Droop control is invalid
Set the drooping amount at the rated
0.1% 0% 0.1 to
torque as a percentage with respect to the
100%
rated frequency.
Set the time constant of the primary delay
0.01s 0.3s 0 to 1s
filter applied to the torque current.
Real sensor less
vector/vector control
Droop control is not
exercised during
acceleration/
deceleration.
0, 10 (When Pr.288 = 10,
droop compensation
amount is determined
using the motor
speed as reference.)
Droop control is
1 0
always exercised
during operation.
(with 0 limit)
1, 11 (When Pr.288 = 11,
droop compensation
amount is determined
using the motor
speed as reference.)
Droop control is
always exercised
2
during operation.
(without 0 limit)
0 JOG terminal
1 Pulse train input
10 JOG terminal
11 Pulse train input
20 JOG terminal
1 0
21
Pulse train input
100
Indicates division scaling factor to the input
1 0 0 to 250 pulse and the frequency resolution to the
input pulse changes according to the value.
Set the frequency when the input pulse is 0
0.01Hz 0 0 to 400Hz
(bias).
Set the frequency when the input pulse is
0.01Hz 60Hz 0 to 400Hz
maximum (gain).
0 to 6, 99,
Select restriction level of parameter
100 to 106, reading/ writing when a password is
1 9999
registered.
199
9999 No password lock
1000 to 9998 Register a 4-digit password
Displays password
unlock error count.
1 9999 (0 to 5)* (Reading only)
(Valid when Pr. 296 =
"100" to "106, 199")
9999* No password lock
Parameter List
Description
Advanced magnetic
flux vector control
Droop control is not
exercised during
acceleration/
deceleration.
Droop
compensation
amount is
determined using
the rated motor
frequency as
reference.
Input Output
FM output
FM output
Pulse train open
collector output
(50% duty)
Pulse train open
collector output
(ON width is always
same)
Pulse train open
collector output
(ON width is always
same
(independently of
Pr. 54))
* "0 or 9999" can be
set in Pr. 297 at any
time although the
setting is invalid
(the displayed value
does not change).
: enabled
× : disabled
×
3
×
×
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