Automatic Restart After Instantaneous Power Failure (Pr. 57, Pr. 58, Pr. 162, Pr. 165, Pr. 611) - Mitsubishi Electric FR-A520-0.4K Instruction Manual

4.2.23 Automatic restart after instantaneous power failure
(Pr. 57, Pr. 58, Pr. 162, Pr. 165, Pr. 611)
Pr. 57 "restart coasting time"
Pr. 58 "restart cushion 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. 165 "restart stall prevention operation level"
Pr. 611 "restart acceleration time"
You can restart the inverter without stopping the motor (with the motor coasting) when the commercial
power supply is switched to the inverter operation or when the power is restored after an instantaneous
power failure. (When automatic restart operation is set to be enabled, restart after instantaneous power
failure is performed without outputting alarm output signals, E.UVT (under voltage protection) and E.IPF
(instantaneous power failure protection), at occurrence of an instantaneous power failure.
Parameter Factory
Setting Range
Number Setting
57 9999 0, 0.1 to 5 s, 9999
58 1.0 s 0 to 60 s
162 0 s
163 0 s 0 to 20 s
164 0% 0 to 100%
165 150% 0 to 200%
611 5.0s 0 to 3600s, 9999
When Pr. 162=0 (with frequency search)
Instantaneous power failure time
ower supply (R, S, T)
Motor speed
N (r/min)
Inverter output
frequency
f (Hz)
Inverter output
voltage
E (V)
Coasting
speed
+
time
Pr. 57 setting detection time
Remarks
9999: No restart
0: Frequency
search
0, 1
1: No frequency
search
Restart acceleration time. ( Pr. 611 setting)
Cushion voltage time (value set in Pr. 58)
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NFB MC1
R
S
T
R1
S1
STF
CS
SD
CS
SD
When Pr. 162=1 (without frequency search)
Instantaneous power failure time
Power supply (R, S, T)
Motor speed
N (r/min)
Inverter output
frequency
f (Hz)
Inverter output
voltage
E (V)
Coasting time
Pr. 57 setting.
96
PARAMETERS
MC2
×
MC3
U
V IM
W
MC switching sequence
Connect CS-SD for use of only
automatic restart after instantaneous
power failure.
Cushion voltage time
Pr. 58 setting