Hitachi J300U Series Common for monitor Close on run Open OFF stop, Prevention function, MA max

Control circuit

	Terminal		Terminal description and function		Standard setting of				Remarks
	symbol				intelligent terminal
	FM	Frequency monitor						Dry contact
	CM1	Common for monitor						Close: ON (run)
								Open: OFF (stop)
	PLC	Common terminal for the external power						Min. ON time:
		source of the sequencer (PLC)
	P24	Internal power source for the frequency						20 ms or more
		monitor and intelligent input terminal
Input	FW	Forward operation
monitor
signal	8	Intelligent input terminal 8			REV	Reverse operation
	7	Intelligent input terminal 7			CF1	Multistage speed
						(First stage)
	6	Intelligent input terminal 6			USP	Prevention function of
						restart upon power on.
	5	Intelligent input terminal 5			CH1	2 stage acc./dec.
									Note:
	4	Intelligent input terminal 4			FRS	Free run input signal
									If the power is turned
									on when the input
									terminals 1 to 5 are
									kept on, all the data
	3	Intelligent input terminal 3			JG	Jogging			stored in the inverter
									is initialized.
	2	Intelligent input terminal 2			AT	Current input selection			Therefore, never turn
									the power on in such
									a state.
	1	Intelligent input terminal 1			RS	Reset	(NOTE 1)
Frequency	H	Power supply for frequency command						10 VDC
command
	O	Voltage frequency command						0-5 VDC (nominal), 0-10 VDC
input								(nominal)(Input impedance 30 kΩ)
	OI	Current frequency command						DC 4-20 mA (nominal)
								Input impedance 250Ω
	L	Common for frequency command
Output	CM2	Common for intelligent output terminal
signal
	12	Intelligent output signal 12			RUN	Run signal		27 VDC
	11	Intelligent output signal 11			FA1	Frequency arrival signal		50 mA max
Fault alarm	AL0
				Normal: AL0-AL1 close	Contact rating
output	AL1			Abnormal, Power off:	250 VAC		2.5 A (Resistor load) Min 100 VAC
				AL0-AL1 open			0.2 A (cos¿=0.4)		10 mA
		AL2 AL1
	AL2			AL0	30 VDC		3.0 A (Resistor load) 5 VDC
							0.7 A (cos¿=0.4)		100 mA
			CAUTION
			Alarm connection may contain hazardous live voltage even when inverter						is disconnected.
			In case of removing flont cover for maintenance or inspection, confirm that incoming power
			for alarm connection is surely disconnected.

NOTE1: Terminal RS can use only contact a (normally open). It cannot use contact b (normally closed).

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