Mitsubishi Electronics FR-S500 instruction manual Current detection function parameters, Setting

Current detection function parameters

2.5 Current detection function parameters

2.5.1Output current detection functions (Pr. 48 , Pr. 49 )

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 or contact output terminal.

Output current detection

signal (Y12) OFF

currentOutput Pr.48

100ms

ON OFF

Pr.49

Time

Parameter	Name	Factory	Setting	Remarks
		Setting	Range
48	Output current	150%	0 to 200%
	detection level			Setting is enabled when
				Pr. 30 = "1"
49	Output current	0s	0 to 10s
	detection period

<Setting>

Parameter	Description
Number

48Set the output current detection level.

100% is the rated inverter current.

Set the output current detection period. Set the time from when the output

49current has risen above the Pr. 48 setting until the output current detection signal (Y12) is output.

Use Pr. 64 or Pr. 65 (output terminal function selection) to assign the terminal used for Y12 signal 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 100)

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