Mitsubishi Electronics FR-S500 Start self-holding selection STOP signal Pr. 60 to Pr, inverter

How to use the input signals (assigned terminals

RL, RM, RH, STR)

1.5.4Start self-holding selection (STOP signal): Pr. 60 to Pr. 63

setting "5"

This connection example is used when you want to self-hold the start signal (forward rotation, reverse rotation).

*Connected to the STOP signal to avoid forward or reverse rotation if forward or reverse rotation and stop are turned on simultaneously.

*	STOP
Stop
Forward	SD
rotation
Reverse
rotation

STF

STR

(Wiring example for sink logic)

1.5.5Output shut-off (MRS signal): Pr. 60 to Pr. 63 setting "6"

Short the output stop terminal MRS-SD during inverter output to cause the inverter to immediately stop the output. Open terminals MRS-SD to resume operation in about 10ms. Terminal MRS may be used as described below:

(1)	To stop the motor by		Motor coasted
	mechanical brake (e.g.	frequency
			to stop
	electromagnetic brake)
	Terminals MRS-SD must be
	shorted when the mechanical	Output		Pr. 13
	before motor restart.
	brake is operated and be opened		0.5Hz
(2)	To provide interlock to			"starting
	disable operation by the	Across		frequency"
	inverter		ON
		MRS -SD
	After MRS-SD have been shorted,	Across	ON
	the inverter cannot be operated if	STF-SD
	the start signal is given to the	(STR)
	inverter.

(3) To coast the motor to stop

The motor is decelerated according to the preset deceleration time and is stopped by operating the DC injection brake at 3Hz or less. By using terminal MRS, the motor is coasted to a stop.

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