Mitsubishi Electronics FR-S500 instruction manual Maximum and minimum frequency Pr, Setting

Explanation of functions (parameters)

2.3.2 Maximum and minimum frequency (Pr. 1		, Pr. 2	)
You can clamp the upper and
lower limits of the output
frequency.	Output frequency (Hz)
	Pr.1
	Pr.2	Set frequency
	0	5,10V
	(4mA)	(20mA)

Parameter	Name	Factory Setting	Setting Range
1	Maximum frequency	60Hz	0 to 120Hz
2	Minimum frequency	0Hz	0 to 120Hz

<Setting>

•Use Pr. 1 to set the upper limit of the output frequency. If the frequency of the frequency command entered is higher than the setting, the output frequency is clamped at the maximum frequency.

•Use Pr. 2 to set the lower limit of the output frequency.

REMARKS

When using the potentiometer (frequency setting potentiometer) connected across terminals 2-5 to perform operation above 60Hz, change the Pr. 1 and Pr. 38 (Pr. 39 when using the potentiometer across terminals 4-5) values.

CAUTION

If the Pr. 2 setting is higher than the Pr. 13 "starting frequency" value, note that the motor will run at the frequency set in Pr. 2 according to the acceleration time setting by merely switching the start signal on, without entry of the command frequency.

♦Related parameters♦

•Starting frequency setting⇒ Pr. 13 "starting frequency" (refer to page 72)

•Maximum frequency setting using external potentiometer

⇒Pr. 30 "extended function display selection" (refer to page 80), Pr. 38 "frequency setting voltage gain frequency",

Pr. 39 "frequency setting current gain frequency" (refer to page 82)

64