Mitsubishi FR - S500 Refer to the following table and set the parameters, Setting Description

<Setting>

Refer to the following table and set the parameters:

Parameter		Setting			Description
			0.1K to	Coasting time of 0.5s		Generally, this setting will
	0		1.5K
			2.2K,	Coasting time of 1.0s		pose no problems.
			3.7K
57
				Waiting time for inverter-triggered		restart after power is
		0.1 to 5s		restored from an instantaneous power failure. (Set this time
				between 0.1 and 5s according to the inertia moment (J) and
				torque of the load.)
		- - -		No restart
58		0 to 60s		Normally the motor may be run with the factory settings. These
				values are adjustable to the load (inertia moment, torque).

Instantaneous power failure (power failure) time

CAUTION

Automatic restart operation after

Power supply (R<L1>, S<N>, T)

STF(STR)

Motor speed (r/min) Inverter output frequency (Hz)

Inverter output voltage

(V)

Coasting time

Pr. 57 setting

Restart voltage rise time

Pr. 58 setting

instantaneous power failure is a reduced voltage starting system in which the output voltage is risen gradually at the preset frequency independently of the coasting speed of the motor.

It is a system which outputs the output frequency before an instantaneous power failure, unlike the motor coasting speed detection system (speed search system) used by the FR-E500series Mitsubishi transistorized inverters. Hence, if the instantaneous power failure time is 0.2s or longer, the frequency before an instantaneous power failure cannot be stored in memory and the inverter restarts at 0Hz. The SU and FU signals are not output during a restart. They are output after the restart cushion time has elapsed.

CAUTION

When automatic restart after instantaneous power failure has been selected, the motor and machine will start suddenly (after the restart coasting time has elapsed) after occurrence of an instantaneous power failure. Stay away from the motor and machine.

When you have selected automatic restart after instantaneous power failure, apply in easily visible places the CAUTION seals supplied to the instruction manual (basic).

The motor is coasted to a stop as soon as you turn off the start signal or press the RESETSTOP key during the restart cushion time after instantaneous power failure.

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