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Current detection function
2.5 Current detection function
2.5.1 Output current detection functions
(Pr. 48 , Pr. 49 )
<Setting>
Use Pr. 64 or Pr. 65 (output terminal function selection) to assign the terminal used for
Y12 signal output.
If the output remains higher than the
Pr. 48 setting during inverter operation
for longer than the time set in Pr. 49,
the output current detection signal
(Y12) is output from the inverter's open
collector output terminal.
Parameter Name
Factory
Setting
Setting
Range
Remarks
48
Output current
detection level
120% 0 to 150%
Setting is enabled when
Pr. 30 = "1"
49
Output current
detection signal
delay time
0s 0 to 10s
Parameter
Number
Description
48
Set the output current detection level.
100% is the rated inverter current.
49
Set the output current detection period. Set the time from when the output
current has risen above the Pr. 48 setting until the output current detection
signal (Y12) is output.
CAUTION
•Once turned ON, when the output current has risen above the preset
detection level, the output current detection signal is held for at least 100ms
(approximately).
•Using Pr. 64 or Pr. 65 (output terminal function selection) to change terminal
assignment may affect the other functions. Make setting after confirming the
function of each terminal.
♦Related parameters♦
• Assignment of Y12 signal to terminal ⇒ Pr. 64 "RUN terminal function selection", Pr. 65 "A, B, C
terminal function selection" (refer to page 111)
Output current
Time
Output current
detection
signal (Y12)
100ms
Pr.48
Pr.49
OFF OFF
ON