Detailed operation by function groups
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equivalent to 150 % of the “PhInOpenLvl” setting value at a maximum load.
Code
Keypad display
Name
Range
Unit
Default setting
PRT_17
PhInOpenChk
Input phase open
detection
0 (No)
1 (Yes)
0 (No)
PRT_18
PhInOpenLvl
Input phase open
detection voltage level
2–100
V
3
PRT_19
PhOutOpenChk
Output phase open
detection
0 (No)
1 (Yes)
0 (No)
Output phase open detection is not available for
synchronous motor
s.
6.8.10 Overload
An overload signal is provided when the output current is higher than the
overload warning level during an inverter operation (based on the motor rated
current).
Refer to the overload warning level and time that are set at PRT_20 and
PRT_21 codes.
Overload warning level (PRT_20), Overload warning time (PRT_21)
When the inverter’s output current is maintained above the value set at PRT_20
during the period set at PRT_21, the inverter sends a warning signal. When the
current drops below the overload warning level after an overload warning is
triggered, the overload warning signal changes to OFF after a set period.
The overload warning signal is operated via the multifunction auxiliary output
terminals (A1–A4). Set one of the multifunction auxiliary output terminals at
DIO_11– DIO_14 (multifunction output terminals AX1– AX4) to “OverLoad” to
enable this function. When an overload condition occurs, the inverter continues
to operate, and the overload warning signal is provided via the multifunction
auxiliary output terminal.