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Pr.
Name
57
Restart selection
A702
• When the automatic restart after instantaneous power failure is selected on the inverter side, set Pr.57 Restart selection
= "0" on the converter unit side.
• When the automatic restart after instantaneous power failure function is selected, the motor driving is resumed at power
restoration after an instantaneous power failure or undervoltage. (E.IPF and E.UVT are not activated.)
• When Pr.57 = "9999" (initial value), the inverter output is shut off at the activation of the instantaneous power failure
protection (E.IPF or E.UVT) of the converter unit, even when the automatic restart after instantaneous power failure is
selected on the inverter side. (Refer to
• When E.IPF or E.UVT is activated, the Instantaneous power failure/undervoltage (IPF) signal is output.
• The IPF signal is assigned to terminal IPF in the initial status. By setting "2" (positive logic) or "102" (negative logic) in any
parameter from Pr.190 to Pr.195 (Output terminal function selection), the IPF signal can be assigned to another
terminal.
15 to 100ms
Power
ON
OFF
supply
IPF
OFF
CAUTION
• When the automatic restart after instantaneous power failure function is selected, the motor suddenly starts
(after reset time passes) when an instantaneous power failure occurs. Stay away from the motor and machinery.
Apply CAUTION stickers (supplied with the inverter) to easily visible places when automatic restart after
instantaneous power failure has been selected.
5.6.3
Power failure time deceleration-to-stop function
This is a function to decelerate the motor to a stop when an instantaneous power failure or undervoltage occurs.
Pr.
Name
261
Power failure stop selection
A730
Initial
Setting
value
range
The converter restarts operation at the power restoration from instantaneous
0
power failure.
9999
The converter does not restart operation automatically at the power
9999
restoration from instantaneous power failure.
page 144
for E.IPF or E.UVT.)
ON
Initial value
0
Description
Setting range
Power failure time deceleration-to-stop function
0
disabled
Power failure time deceleration-to-stop function
1, 2, 21, 22
enabled
Description
5. PARAMETERS
5.6 (A) Application parameters
1
2
3
4
5
6
7
8
9
10
99
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