Mitsubishi Electronics FR-A500L instruction manual ，B，C, Run, Ipf

						INSTALLATION AND WIRING
Type		Symbol	Terminal Name			Description
		10E		10VDC, permissible load current		When the frequency setting potentiometer is
				10mA		connected in the factory-set state, connect it to
			Frequency setting
						terminal 10.
			power supply	5VDC, permissible load current
		10				When it is connected to terminal 10E, change the
				10mA
						input specifications of terminal 2.
	settingfrequencyAnalog
signalsInput				By entering 0 to 5VDC (0 to 10VDC), the maximum output frequency is reached at 5V
		2	Frequency setting	(or 10V) and I/O are proportional. Switch between input 0 to 5VDC (factory setting)
			(voltage)	and 0 to 10VDC from operation terminal. Input resistance 10kΩ . Maximum
				permissible voltage 20V.
			Frequency setting	By entering 4 to 20mADC, the maximum output frequency is reached at 20mA and I/O
		4		are proportional. This input signal is valid only when the AU signal is on. Input
			(current)
				resistance 250 . Maximum permissible current 30mA.
				Ω
				By entering 0 to ± 5VDC 0 to ± 10VDC, this signal is added to the frequency setting
		1	Auxiliary frequency	signal of terminal 2 or 4. Switch between input 0 to ± 5VDC and 0 to ± 10VDC (factory
			setting	setting) from operation terminal. Input resistance 10kΩ . Maximum permissible voltage
				± 20V.
		5	Frequency setting	Common to the frequency setting signal (terminal 2, 1 or 4) and analog output terminal
			input common	AM. Do not earth.
				Change-over contact output indicating that the output has been
	Contact			stopped by the inverter protective function activated.
		A，B，C		(continuity across A-C), normal: continuity across B-C
			Alarm output	200VAC 0.3A, 30VDC 0.3A. Alarm: discontinuity across B-C
				(discontinuity across A-C).
				Switched low when the inverter output frequency is equal to or
		RUN	Inverter running	higher than the starting frequency (factory set to 0.5Hz, variable).
				Switched high during stop or DC dynamic brake operation(note1)
				Permissible load 24VDC 0.1A.			Output terminal
				Switched low when the output frequency has reached within ± 10%
				of the set frequency (factory setting, variable). Switched high			function selection
		SU	Up to frequency				(Pr. 190 to Pr.
				during acceleration, deceleration or stop(note 1). Permissible load
signalsOutput	collectorOpen			24VDC 0.1A.			195) change
							terminal functions.
				Switched low when the stall prevention function has caused stall
		OL	Overload alarm	prevention to be activated. Switched high when stall prevention is
				reset(note 1). Permissible load 24VDC 0.1A.
		IPF	Instantaneous power	Switched low when instantaneous power failure or undervoltage
			failure	protection is activated(note 1). Permissible load 24VDC 0.1A.
				Switched low when the output frequency has reached or exceeded
		FU	Frequency detection	the detection frequency set as appropriate. Switched high when
				below the detection frequency(note 1). Permissible load 24VDC
				0.1A
		SE	Open collector output	Common to the RUN, SU, OL, IPF and FU terminals.
			common
	Pulse					Factory setting of output item:
		FM	For meter	One selected from 16 monitoring		Frequency
				items, such as output frequency,		Permissible load current 1mA
				is output(note 2).		1440 pulses/second. at 60Hz
	Analog			The output signal is proportional		Factory setting of output item:
		AM	Analog signal output	to the magnitude of each		Frequency
				monitoring item.		Output signal 0 to 10VDC
						Permissible load current 1mA
Communication	RS485			With the operation panel connector, communication can be made through RS-485.
				∙ Conforming Standard	: EIA Standard RS-485
			PU connector	∙ Transmission format	: Multi-drop link
				∙ Communication speed : Maximum 19200 baud rates
				∙ Overall length	: 500m

Note1: Low indicates that the open collector outputting transistor is on (conducts). High indicates that the transistor is off (does not conduct).

Note2: Not output while the inverter is reset.

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