Restart Operation After Instantaneous Power Failure / Flying Start; Remote Setting Function - Mitsubishi Electric FR-F700 Manual

F700 series
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Pr.
57, 58, 162 to 165, 299, 611

Restart operation after instantaneous power failure / Flying start

Pr.57 Restart coasting time
Pr.162 Automatic restart after instantaneous power failure selection
Pr.163 First cushion time for restart
Pr.164 First cushion voltage for restart
Pr.299 Rotation direction detection selection at restarting
Pr.611 Acceleration time at a restart
You can restart the inverter without stopping the motor in the
following cases.
⋅ when commercial power supply operation is switched to inverter
operation
⋅ when power comes back on after an instantaneous power failure
⋅ when motor is coasting at start
Pr.
Setting Range
Number
0
57
0.1 to 5s/
0.1 to 30s
*
9999 (initial value)
58
0 to 60s
0 (initial value)
1
162
10
11
163
0 to 20s
164
0 to 100%
165
0 to 150%
0
1
299
9999
0 to 3600s
611
9999
*
The setting range varies according to the inverter capacity. (55K or less/
75K or more)
<Connection diagram>
MCCB
MC1
R/L1
S/L2
T/L3
R1/L11
S1/L21
When "0 (initial value) or 10" is set in Pr. 162, the inverter smoothly
starts after detecting the motor speed upon power restoration.
Even when the motor is rotating in the opposite direction, the
inverter can be restarted smoothly as the direction of rotation is
detected. (You can select whether to make rotation direction
detection or not with Pr. 299 Rotation direction detection selection at
restarting. )
33
indicates simple mode parameters and
Pr.
Pr.58 Restart cushion time
Pr.165 Stall prevention operation level for restart
Description
1.5K or less..........0.5s,
2.2K to 7.5K.........1s,
11K or more ........3.0s
75K or more ........5.0s
The above times are coasting time.
Set the waiting time for inverter-triggered
restart after an instantaneous power
failure.
No restart
Set a voltage starting time at restart.
With frequency search
Without frequency search (reduced
voltage system)
Frequency search at every start
Reduced voltage system at every start
Set a voltage starting time at restart.
Consider using these parameters
according to the load (inertia moment,
torque) magnitude.
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
Pr. 78
When
=0, the rotation direction is
detected.
Pr. 78
When
=1,2, the rotation direction is
not detected.
Set the acceleration time to reach the set
frequency at restart.
Acceleration time for restart is the normal
acceleration time (e.g. Pr. 7).
MC2
MC3
U
V
IM
W
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.
indicates extended parameters. When setting parameters, refer to the instruction manual (applied) and understand instructions.
Pr.
When Pr. 162 = 0, 10 (with frequency search)
Instantaneous (power failure) time
Power supply
(R/L1,S/L2,T/L3)
Motor
speed N (r/min)
Inverter
output frequency
f (Hz)
Inverter
output voltage
E (V)
Coasting
Speed
+
time (Pr.57)
detection time
* The output shut off timing differs according
to the load condition.
When Pr. 162
= "1" or "11", automatic restart operation is
performed in a reduced voltage system, where the voltage is
gradually risen with the output frequency unchanged from prior to
an instantaneous power failure independently of the coasting
speed of the motor.
When Pr. 162 = 1, 11 (without frequency search)
Instantaneous (power failure) time
Power supply
(R/L1,S/L2,T/L3)
Motor speed N
(r/min)
Inverter
output frequency
f (Hz)
Inverter
output voltage
E (V)
Coasting time
Pr. 57 setting
* The output shut off timing differs according
to the load condition.
Pr.

Remote setting function

59
Pr.59 Remote function selection
Even if the operation panel is located away from the enclosure,
you can use contact signals to perform continuous variable-speed
operation, without using analog signals.
By merely setting this parameter, you can use the acceleration,
deceleration and setting clear functions of the motorized speed
setter (FR-FK).
Pr.59 Setting
RH, RM, RL signal
function
0 (initial value)
Multi-speed setting
1
Remote setting
2
Remote setting
3
Remote setting
*
0Hz
ON
Acceleration
ON
(RH)
Deceleration
ON
(RM)
Clear (RL)
Forward
ON
rotation (STF)
ON
Power supply
* External runnning frequency (other than multi-speed operation) or PU
running frequency
*
Restart cushion
time (Pr. 58 setting)
Acceleration time
at a restart
(Pr. 611 setting)
*
Restart cushion
time
Pr. 58 setting
Description
Frequency setting
storage function
Yes
No
No
(Turning STF/STR off
clears remotely-set
frequency.)
When Pr. 59 = 1
When Pr. 59 = 1, 2
When Pr. 59 = 3
When Pr. 59 = 2, 3
Time
ON
ON
ON
ON
ON
ON

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