Mitsubishi Electric FR-A700 EC, Instruction Manual

Page: 221 / 826

Parameter Parameter overview
FR-A700 EC 6 - 41
Func-
tion
Parameter
Name
Incre-
ments
Initial
Value
Setting
Range
Description
Para-
meter
copy
Para-
meter
clear
All
para-
meter
clear
Refer
to
page
Re
la
te
d
parameters
✔
: enabled
—: disabled
—
267 Refer to Pr. 73
268 Refer to Pr. 52
269 Parameter for manufacturer setting: Do not set!
Load torque high sp
eed frequency control
270
Stop-on contact/load
torque high-speed fre-
quency control selec-
tion
1 0
0
Without stop-on contact control
and load torque high-speed fre-
quency control
✔ ✔ ✔
6-257
1 Stop-on contact control
2
Load torque high speed frequency
control
3
Stop-on c load torque high
speed frequency control
271
High-speed setting
maximum current
0.1% 50% 0–220%
Set the upper and lower limits of
the current at high and middle
speeds.
✔ ✔ ✔
272
Middle-speed setting
minimum current
0.1% 100% 0–220%
✔ ✔ ✔
273
Current averaging
range
0.01Hz 9999
0–400Hz
Average current during accelera-
tion from (Pr. 273 × 1/2)Hz to
(Pr. 273 )Hz can be achieved
✔ ✔ ✔
9999
Average current during accelera-
tion from (Pr. 5 × 1/2)Hz to
(Pr. 5)Hz is achieved.
274
Current averaging fil-
ter time constant
1 16 1–4000
Set the time constant of the pri-
mary delay filter relative to the
output current. (The time con-
stant [ms] is 0.75 × Pr. 274 and
the initial value is 12ms.)
A larger setting provides higher
stability but poorer response.
✔ ✔ ✔
Stop-on contact control
270
Stop-on contact/load
torque high-speed fre-
quency control selec-
tion
1 0
0
Without stop-on contact control
and load torque high-speed fre-
quency control
✔ ✔ ✔
6-509
1 Stop-on contact control
2
Load torque high speed frequency
control
3
Stop-on c load torque high
speed frequency control
275
Stop-on contact excita-
tion current low-speed
multiplying factor
0.1% 9999
0–1000%
Usually set a value between 130%
and 180%.
Set the force (holding torque) for
stop-oncontact control.
✔ ✔ ✔
9999 No compensation.
276
PWM carrier fre-
quency at stopon con-
tact
1 9999
0–9/
0–4 *
Set a PWM carrier frequency for
stop-oncontact control.
(Valid at the output frequency of
3Hz or less.)
*
The setting range differs
according to the inverter
capacity.
(01800 or less/02160 or more)
✔ ✔ ✔
9999
As set in Pr. 72 "PWM frequency
selection".
Tab. 6-1: Parameter overview (41)
Magnetic fluxM
ag
n
et
ic
f
lu
x
Magnetic flux
SensorlessS
en
so
rl
es
s
Sensorless