Mitsubishi Electronics FR-S500 instruction manual Voltage input 10, 2

Input terminals

1.4.2Connection of frequency setting potentiometer and output frequency meter (10, 2, 5, 4, AU)

The analog frequency setting input signals that may be entered are voltage and current signals.

For the relationships between the frequency setting input voltages (currents) and output frequencies, refer to the following diagram. The frequency setting input signals are proportional to the output frequencies. Note that when the input signal is less than the starting frequency, the output frequency of the inverter is 0Hz.

If the input signal of 5VDC (or 10V, 20mA) or higher is entered, the output frequency does not exceed the maximum output frequency.

Frequency setting voltage gain frequency Frequency setting

(Hz)	current gain frequency
	(1 to 120Hz)
frequencies
	Maximum frequency	Input voltage is
	(0 to 120Hz)	proportional to
	Minimum frequency	output			Pr.38
		frequency.		Pr.1	Pr.39
Output	(0 to 120Hz)
	Starting frequency			Pr.2
	(0 to 60Hz)
				Pr.13
	0.5
	0	Frequency setting signal	5V	Pr.73
			(10V)
			(20mA)

Relationships between Frequency Setting Inputs and Output Frequencies

REMARKS

For the way to calibrate the output frequency meter, refer to page 126.

(1) Voltage input (10, 2, 5)

Enter the frequency setting input signal of 0 to 5VDC (or 0 to 10VDC) across the frequency setting input terminals 2-5. The maximum output frequency is reached when 5V (10V) is input across terminals 2-5.

The power supply used may either be the inverter's built-in power supply or an external power supply. For the built-in power supply, terminals 10-5 provide 5VDC output.

For operation at 0 to 5VDC, set "0" in Pr. 73 to the 0 to 5VDC input. Use terminal 10 for the built-in power supply.

+5V 10

For operation at 0 to 10VDC, set "1" in Pr. 73 to the 0 to 10VDC input.

0 to 5VDC

2 5

0 to 10VDC

2 5

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