Mitsubishi FR - S500 instruction manual EC version

		Factory	Setting
Parameter	Name	Setting		Remarks
			Range
		<EC version>
3	Base frequency	60Hz	0 to 120Hz	
		<50Hz>
				888: 95% of power supply voltage*2
19	Base frequency	- - -	0 to 500V,	- - -: Same as power supply
	voltage	<888>	888, - - -*1	voltage*3
				Setting is enabled when Pr. 30 = "1".
47	Second V/F (base	- - -	0 to	- - -: Function invalid
	frequency)		120Hz, - - -	Setting is enabled when Pr. 30 = "1".

*1 0 to 800V, 888, - - - for FR-S540-0.4K to 3.7K.

*2 1.9 times greater than the power supply voltage for the FR-S510W-0.1K to 0.75K. *3 Twice greater than the power supply voltage for the FR-S510W-0.1K to 0.75K.

<Setting>

In Pr. 3 and Pr. 47, set the base frequency (motor's rated frequency).

Use the RT signal to switch between these two different base frequencies. (Turn on the RT signal to make Pr. 47 valid.) (*)

When running the standard motor, generally set the "base frequency" to the rated frequency of the motor. When running the motor using commercial power supply- inverter switch-over operation, set the base frequency to the same value as the power supply frequency.

When the frequency given on the motor's rating plate is only "50Hz", always set the "base frequency" to "50Hz". Leaving the base frequency unchanged from "60Hz" may make the voltage too low and the torque insufficient, resulting in an overload trip. Special care must be taken when "1" is set in Pr. 14 "load pattern selection".

Set the base voltage (e.g. rated voltage of motor) in Pr. 19.

CAUTION

1.Set 60Hz in Pr. 3 "base frequency" when using a Mitsubishi constant-torque motor.

2.When automatic torque boost is selected, Pr. 47 is invalid. When automatic torque boost is selected, setting "- - -" or "888" in Pr. 19 uses the rated output voltage.

REMARKS

*The RT signal serves as the second function selection signal and makes the other second functions valid.

♦ Related parameters♦

When rated motor frequency is "50Hz" ⇒ Pr. 14 "load pattern selection" (refer to page 66)

RT signal (second function "Pr. 47") setting ⇒ Pr. 60 to Pr. 63 (input terminal function selection) (refer to page 88)

Motor setting ⇒ Pr. 71 "applied motor" (refer to page 93)

Automatic torque boost selection ⇒ Pr. 98 "automatic torque boost selection (motor capacity)"

(refer to page 109)

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