Operation Selection At Power Failure And Instantaneous Power Failure - Mitsubishi Electric FR-A700 Technical Manual

2.16 Operation selection at power failure and
instantaneous power failure
2.16.1 Automatic restart after instantaneous power failure/flying start
[Pr. 30, 57, 58, 96, 162, 163*, 164*, 165, 298*, 299, 611]
When instantaneous power failure protection (E.IPF) and
undervoltage protection (E.UVT) are activated, the inverter
output is shut off. (Refer to page 111 for E.IPF and E.UVT)
When automatic restart after instantaneous power failure
operation is set with the following conditions, the motor can be
restarted if power is restored after an instantaneous power
failure or undervoltage. (E.IPF and E.UVT are not activated.)
[Pr. ] Name Initial Value
Restart
57 9999
coasting time
Restart
58 1s
cushion time
Auto tuning
96 0
setting/status
Automatic
restart after
162 instantaneous 0
power failure
selection
Setting Range
F700
A700
1.5K or less ..... 0.5s
2.2K to 7.5K .... 1s
0
11K to 55K....... 3.0s
75K or more .... 5.0s
of coasting time
55K or
0.1 to 5s
less
Set the waiting time for inverter-triggered
restart after an instantaneous power failure.
75K or
0.1 to 30s
more
9999 No restart
0 to 60s Set a voltage starting time at restart.
0 Offline auto tuning is not performed.
For Advanced magnetic vector control
Offline auto tuning (all motor constants)
1
without running the motor.
(Refer to page 268)
For General-purpose magnetic flux vector
control
11 Offline auto tuning (only motor constant (R1))
without turning the motor.
(Refer to page 268)
For V/F control.
Offline auto tuning (without running the
21 motor) for automatic restart after
instantaneous power failure (with frequency
search)
For Advanced magnetic vector control
Offline auto tuning (all motor constants) by
101
running the motor.
(Refer to page 268)
0 With frequency search
Without frequency search (reduced voltage
1
system)
2 Encoder detection frequency search
10 Frequency search at every start
11 Reduced voltage at every start
12 Encoder detection frequency search at every start
367
common
(common)
(*[Pr. 163, 164] are not available for
(*[Pr. 298] is not available for
• when electronic bypass operation is switched to inverter
operation
• when power comes back ON after an instantaneous
power failure
• when motor is coasting at start
Automatic restart after instantaneous power failure function is
invalid when load torque high speed frequency control ([Pr.
270 = 2, 3]) is set.
Description
E700 D700
1.5K or less...... 1s
2.2K to 7.5K..... 2s
11K or more ..... 3.0s
of coasting time
PARAMETER
.)
E700 D700
.)
F700
A700
Available Inverters
A700 F700 E700 D700
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