Mitsubishi Electric FR-D720S SC EC Instruction Manual page 157

Parameter
Parameter
Func-
Name
tion
Frequency monitoring
55
reference
Current monitoring
56
reference
57 Restart coasting time
58 Restart cushion time
Automatic restart after
instantaneous power
162
failure selection
Stall prevention opera-
165
tion level for restart
Frequency search gain
298
Rotation direction
detection selection at
299
restarting
Acceleration time at a
611
restart
Tab. 6-1: Parameter overview (7)
FR-D700 SC EC
Incre- Initial Setting
ments value range
0.01Hz 50Hz 0–400Hz
Rated
inverter
0.01 0–500
output
current
0
0.1s 9999
0.1–5s
9999
0,1 s 1 s 0–60 s
0
1
1 1
10
11
0.1% 150% 0–200%
0–32767
1 9999
9999
0
1
1 0
9999
0–3600s
0.1s 9999
9999
Description
Set the full-scale value to output
the output frequency monitor
value to terminal AM.
Set the full-scale value to output
the output current monitor value
to terminal AM.
The coasting time is as follows:
FR-D720S-070SC or less,
FR-D740-036SC or less:. . . . 1 s,
FR-D720S-100SC,
FR-D740-050SC or more:. . . 2 s
Set the waiting time for inverter-
triggered restart after an instanta-
neous power failure.
No restart
Set a voltage starting time at
restart.
With fre-
quency search
Without fre-
quency search
(Reduced
When using the
voltage sys-
frequency search,
tem)
consider the wir-
ing length limit.
Frequency
(Refer to page
search at
3-11.)
every start
Reduced
voltage sys-
tem at every
start
Consider the rated inverter current
as 100% and set the stall preven-
tion operation level during restart
operation.
When offline auto tuning is per-
formed under V/f control, fre-
quency search gain necessary for
frequency search for automatic
restart after instantaneous power
failure is set as well as the motor
constants (R1).
Uses the Mitsubishi motor (SF-JR,
SF-HRCA) constants
Without rotation direction detection
With rotation direction detection
When Pr. 78 = "0", the rotation
direction is detected.
When Pr. 78 = "1", "2", the rotation
direction is not detected.
Set the acceleration time to reach
the set frequency at a restart.
Acceleration time for restart is the
normal acceleration time (e.g.
Pr. 7).
Parameter overview
All
Para- Para-
Para-
meter meter
meter
copy clear
clear
Refer
to
page
✔: enabled
—: disabled
✔ ✔ ✔
6-118
✔ ✔
—
✔ ✔ ✔
✔ ✔ ✔
✔ ✔ ✔
6-123
✔ ✔ ✔
✔ ✔
—
✔ ✔ ✔
✔ ✔ ✔
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