4-104
4-2 Function Mode
4
Functions
Light Load Detection Signal
•This signal is output when output current falls below the light load detection level (C039).
•In light load signal output mode C038, you can set whether this output is enabled in any operation
mode, or only in constant speed operation.
Operation Ready Signal
•This signal is output when the Inverter becomes ready for operation (ready to receive the RUN
command).
•Even if the RUN command is input while this signal is not output, the Inverter does not recognize
the RUN command.
•If this signal is not output, check if the input power supply voltage (R/L1, S/L2, T/L3) is within the
specified range.
Forward Run Signal
•This signal is output while the Inverter is running forward.
•While the Inverter is running in reverse, or when stopped, this signal is turned off.
Parameter No. Function name Data Default setting Unit
C021 to C025
Multi-function output
terminal selection
43: LOC (light load detection signal)
C026
Relay output (AL2, AL1)
function selection
05
C038
Light load signal output
mode
00: Enabled in operation
01: Enabled only in constant speed
operation
01
C039 Light load detection level
0.0 to 2.0 × Rated current:
Set an output level for low current signals.
Rated current A
Output
current (A)
Low current
signal detection
level
(C039)
Low current signal
Parameter No. Function name Data Default setting Unit
C021 to C025
Multi-function output
terminal selection
50: IRDY (operation ready signal)
C026
Relay output (AL2, AL1)
function selection
05
Parameter No. Function name Data Default setting Unit
C021 to C025
Multi-function output
terminal selection
51: FWR (forward run signal)
C026
Relay output (AL2, AL1)
function selection
05
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