E6581090
F-25
6
<Example of operation>1) If function 12 (OT: over-torque det ection) is assigned to the FM/OUT terminal,using the output terminal selection pa rameter H
H (FM/OUT terminal selection 1): 12 (OT: over-torque detection)
Time (sec)
＊H-10%
H
Torque current (%)
Over-torque-
detection signal
P15-FM/OUT
H
ON
ＯFF OFF
*The VF-nC1 inverter has 10% of hysteresis to prevent the occurrence of over-torque hunti ng.
Therefore, the over-t orque signal is turned off at a lev el lower than the s etting of H by
10% (hysteresis).
Less than
H-set value
6.14.8 Undervoltage trip H : Under voltage trip selection
•Function

This parameter is used to select the control mode activated when an undervoltage is

detected. The error message “WR” will be displayed if the inverter trips because of an

undervoltage.

H＝ : Disabled････ The inverter shuts down but not trip. (FL relay not activated) The
inverter shuts down if the voltage drops below 64% of the rated
voltage.
H＝ : Enabled･････The inverter shuts down. It trips if the voltage drops below 64% of
the rated voltage. (FL relay activated)
H＝ : Disabled････ The inverter shuts down but not trip. (FL relay not activated) The
inverter shuts down if the voltage drops below 50% of the rated
voltage. When setting H to , be sure to install the input
reactor of an option.
Title FunctionAdjustment rangeDefault setting
H Under voltage trip
selection
0:Disabled
1:Enabled (shutdown below 64%,
FL relay activated)
2:Disabled (shutdown below 50%,
FL relay not activated)
0