Mitsubishi Electric FR-A700 Technical Manual page 334

[Pr. ] Name Initial Value
First cushion
163
time for restart
First cushion
164 voltage for
restart
Stall
prevention
165
operation level
for restart
Frequency
298
search gain
Rotation
direction
299 detection
selection at
restarting
55K or
less
Acceleration
611 time at a
75K or
restart
more
* These parameters are not used in instantaneous power failure function.
(1) Connection (CS signal)
When the automatic restart after instantaneous power
failure selection signal (CS) is turned ON, automatic restart
operation is enabled. To use automatic restart after
instantaneous power failure or flying start function, turn ON
CS signal. To operate by switching between bypass and
inverter operation, configure a sequence which turns OFF
CS signal during bypass operation and turns ON during
inverter operation.
When [Pr. 57 ≠ 9999] (automatic restart operation enabled),
the inverter will not operate if used with the CS signal
remained OFF.
Setting Range
0s 0 to 20s
0% 0 to 100%
A700
A700
0 to 220%
E700
E700 D700
D700
0 to 200%
150%
F700
F700
0 to 150%
120%
0 to 32767
9999
9999
0
A700
1
E700
D700
0
9999
F700
9999
5s
0 to 3600s, 9999
15s
A700 F700
Description
Set a voltage starting time at restart.
Consider using these parameters according
to the load (inertia moment, torque)
magnitude.
Considers the rated inverter current as 100%
and sets the stall prevention operation level
during restart operation.
When offline auto tuning is performed under
V/F control, frequency 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-HR,
SF-JRCA, SFHRCA) 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 (acceleration slope)
at restart. For [Pr.611], set the acceleration
time to reach [Pr.20 Acceleration/deceleration
reference frequency] from 0Hz.
Acceleration time for restart is the normal
acceleration time (e.g. [Pr. 7]) when 9999 is
set.
MCCB
368
PARAMETER
Available Inverters
A700
F700
— —
MC2
MC1
MC3
R/L1 U
S/L2 V
T/L3 W
R1/L11
S1/L21
STF
CS
MC
SD
switchover
sequence
For use for only
CS
automatic restart
SD
after instantaneous
power failure or flying start,
short CS-SD in advance.
E700 D700
IM