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Mitsubishi Electric FR-F720P-0.75K Instruction Manual Page 101

Fr-f700p series.
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Parameter list
Parameter
Name
Operation selection at power failure and instantaneous power failure — Automatic restart
after instantaneous power failure/flying start (Pr.57, Pr.58, Pr.162 to Pr.165, Pr.299, Pr.611)
57
Restart coasting time
58
Restart cushion time
V/F
V/F
V/F
S
S
S
MFVC
MFVC
MFVC
Automatic restart after
instantaneous power
162
failure selection
163
First cushion time for
V/F
V/F
V/F
restart
S
S
S
MFVC
MFVC
MFVC
164
First cushion voltage
V/F
V/F
V/F
for restart
S
S
S
MFVC
MFVC
MFVC
Stall prevention
165
operation level for
V/F
V/F
V/F
restart
S
S
S
MFVC
MFVC
MFVC
Rotation direction
299
detection selection at
V/F
V/F
V/F
restarting
S
S
S
MFVC
MFVC
MFVC
Acceleration time at a
611
restart
* The setting depends on the inverter capacity (55K or lower/75k or higher)
94
Incre-
Initial
Range
ments
Value
0
0.1s
9999
0.1 to 5s/
0.1 to 30s
9999
0.1s
1s
0 to 60s
0
1
0
1
10
11
0.1s
0s
0 to 20s
0.1%
0%
0 to 100%
0.1%
120%
0 to 150%
0
1
1
9999
9999
0 to 3600s
0.1s
5/15s
*
9999
Description
V/F control,
Simple magnetic
IPM motor control
flux vector control
The coasting time is
as follows:
1.5K or lower.....0.5s,
No coasting time
2.2K to 7.5K ......1.0s,
11K to 55K ........3.0s,
75K or higher ....5.0s
Set the waiting time for inverter-triggered restart
after an instantaneous power failure.
*
No restart
Set a voltage starting time at restart.
V/F control,
Simple magnetic
IPM motor control
flux vector control
With frequency search
With frequency
Without frequency
search
search (reduced
(only at the first start)
voltage system)
Frequency search at
every start
Frequency search at
every start
Reduced voltage at
every start
Set a voltage starting time at restart.
Consider according to the magnitude of load
(moment of inertia/torque).
Consider the rated inverter current as 100%
and set the stall prevention operation level
during restart operation.
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 Pr. 20
Acceleration/deceleration reference frequency at
a restart.
Acceleration time for restart is the normal
acceleration time (e.g. Pr. 7).
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