Mitsubishi Electronics FR-S500 instruction manual Changeover contact output indicates

Standardconnection diagramand terminal specifications

	Symbol				Terminal Name	Definition
						Changeover contact output indicates
				A		that the inverter protective function has
						activated and the output stopped.
				B	Alarm output	230VAC 0.3A, 30VDC 0.3A. Alarm:
				C		discontinuity across B-C (continuity	The function of the
						across A-C), Normal: continuity across	terminals changes
						B-C (discontinuity across A-C).(*5)	according to the
		Open collector				Switched low when the inverter output	output terminal
						frequency is equal to or higher than the	function selection
					Inverter	starting frequency (factory set to 0.5Hz	(Pr. 64, Pr.65).
signals				RUN		variable). Switched high during stop or	(*4)
					running	DC injection brake operation. (*2)
						Permissible load 24VDC 0.1A (a
						voltage drop is 3.4V maximum when
						the signal is on)
Output
			SE		Open collector	Common terminal for inverter running terminal RUN. (*6)
					common
		Indicator				The output signal across terminals AM-5 is factory set to about
				AM	Analog signal	5VDC at 60Hz and is proportional to the corresponding output
						frequency.
					output	Frequency permissible load current 1mA
						Output signal 0 to 5VDC
Communication					RS-485	Using the parameter unit connection cable (FR-CB201 to
			——			205), the parameter unit (FR-PU04) can be connected.
					connector	Communication operation can be performed using RS-485.
						For details of RS-485 communication, refer to page 42.

*1. Do not connect terminals SD and PC each other or to the ground.

For sink logic (factory setting), terminal SD acts as the common terminal of contact input. For source logic, terminal PC acts as the common terminal of contact input. (Refer to page 23 for switching method.)

*2. Low indicates that the open collector output transistor is on (conducts). High indicates that the transistor is off (does not conduct).

*3. RL, RM, RH, RT, AU, STOP, MRS, OH, REX, JOG, RES, X14, X16, (STR) signal selection (Refer to page 98.)

*4. RUN, SU, OL, FU, RY, Y12, Y13, FDN, FUP, RL, Y93, Y95, LF, ABC signal selection (Refer to page 100.)

*5. To be compliant with the European Directive (Low Voltage Directive), the operating capacity of relay outputs (A, B, C) should be 30VDC 0.3A.

*6. Terminals SD, SE and 5 are isolated from each other. Do not ground.

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