E6581386
F-52
6
6.26.12 Abnormal speed detection
: Abnormal speed detection time
: Overspeed detection frequency upper band
: Overspeed detection frequency lower band
• Function
These parameters allow you to set the inverter so that, when it is in sensor speed control mode (=), it
always monitors the rotational speed of the motor, even when the motor is at rest, and if the speed remains
out of the specified limits for the specified length of time, it outputs an error signal.
Title Function Adjustment range Default setting
Abnormal speed detection time ~ sec.
Overspeed detection frequency upper band : Disabled, ~ Hz
Overspeed detection frequency lower band : Disabled, ~ Hz
Output frequency [Hz]
Time [s]
0
Output frequency
trip
6.26.13 Overvoltage limit operation
: Overvoltage limit operation level
⇒ For more details, refer to Section 6.15.2.
6.26.14 Undervoltage trip
: Undervoltage trip selection
• Function
This parameter is used for selecting the control mode when an undervoltage is detected. (Invalid, while the
inverter stops.)
=: (Disabled)
･････････ Inverter stops,but does not trip. (FL is not active.)
=: (Enabled)
･････････ Inverter stops and is tripped because an undervoltage is detected. (FL is active.)
Title Function Adjustment range Default setting
Undervoltage trip selection : Disabled, : Enabled
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