If “Continue to run (Deceleration Setting During Current Limit for Restart Mode after Power Interrup-
tion (3008Hex-0FHex) = 3)” is selected at the Power Interruption Restart (mode selection), then at
the moment a momentary power failure occurs while the inverter is operating and the Main Circuit
DC Voltage of the inverter falls below the continuous running level, the operation continuation con-
trol is started.
Adjust the continuous running level at which to start the continuous running control at Continuous
Running V
oltage Level (3008Hex-10Hex). During continuous running control, the operation is contin-
ued while controlling the Main Circuit DC Voltage at a constant level with a PI controller.
Power failure
Main Circuit
DC Voltage
Inverter
output frequency
Continuous Running Volta
ge Level (3008Hex-10Hex)+α
Continuous Running Voltage Level (3008Hex-10Hex)
Undervoltage level
Power restoration
Power supply system
α
22 kW max. 30 kw min.
200 V 5 V 10 V
400 V 10V 20 V
• During decelerating at momentary power failure “IPF2”
This parameter turns ON when Deceleration Setting During Current Limit for Restart Mode after
Power Interruption (3008Hex-0FHex) is 2 or 3, and the Main Circuit DC Voltage falls below Continu-
ous Running V
oltage Level (3008Hex-10Hex) and the continuous running state is established. This
parameter turns OFF when power restores and the Main Circuit DC Voltage becomes “the voltage
set at Continuous Running Voltage Level (3008Hex-10Hex) +10 V or higher.”
This parameter turns ON even when Deceleration Setting During Current Limit for Restart Mode af-
ter Power Interruption (3008Hex-0FHex) is 4 or 5 and the Main Circuit DC Voltage falls below the
undervoltage level. This parameter turns OFF when the DC link bus voltage reaches “the undervolt-
age level +10 V or higher.”
Parameter No. Function name Data
Default da-
ta
Unit
3005Hex-15Hex/
3005Hex-1CHex
Output Terminal [DO1] Function
Selection/
Output T
erminal [ROA, ROB]
Function Selection
79: IPF2 (During decelerat-
ing at momentary power
failure)
- -
8 Other Functions
8-49
M1 Series EtherCAT Type User’s Manual (I670)
8-4 Restart Functions
8
8-4-2 Restart after Momentary Power Failure
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