Mitsubishi Electric FR-D720S SC EC, Инструкция по эксплуатации, Страница: 169 / 512

Parameter Parameter overview
FR-D700 SC EC 6 - 19
Func-
tion
Parameter
Name
Incre-
ments
Initial
value
Setting
range
Description
Para-
meter
copy
Para-
meter
clear
All
Para-
meter
clear
Refer
to
page
Rel
a
ted
pa
ramet
e
rs
✔
: enabled
—: disabled
Slip compensation
245 Rated slip 0.01% 9999
0–50% Used to set the rated motor slip.
✔ ✔ ✔
6-32
9999 No slip compensation
246
Slip compensation
time constant
0.01s 0.5s 0.01–10s
Used to set the response time of
slip compensation. When the
value is made smaller, response
will be faster. However, as load
inertia is greater, a regenerative
over voltage (E.OV
) error is
more liable to occur.
✔ ✔ ✔
247
Constant-output region
slip compensation
selection
1 9999
0
Slip compensation is not made in
the constant output range (fre-
quency range above the frequency
set in Pr. 3)
✔ ✔ ✔
9999
Slip compensation is made in the
constant output range.
Ground fault detection
249
Earth (ground) fault
detection at start
1 0
0 Without ground fault detection
✔ ✔ ✔
6-142
1 With ground fault detection
Selection of motor stopping method
250 Stop selection 0.1s 9999
0–100s
The motor is
coasted to a
stop when the
preset time
elapses after
the start sig-
nal is turned
off.
STF signal:
Forward rotation
start
STR signal:
Reverse rotation
start
✔ ✔ ✔
6-86
1000–1100s
The motor is
coasted to a
stop (Pr. 250
−
1000)s after
the start sig-
nal is turned
off.
STF signal:
Start signal
STR signal:
Forward/reverse
signal
8888
When the
start signal is
turned off, the
motor decel-
erates to stop.
STF signal:
Start signal
STR signal:
Forward/reverse
signal
9999
STF signal:
Forward rotation
start
STR signal:
Reverse rotation
start
Tab. 6-1: Parameter overview (19)