Cleveland Range inverter Parameter Description FU1, FU1-38 Output Voltage Adjustment, User V/F

Chapter 4 - Parameter Description [FU1]

These functions are available only when ‘User V/F’ is selected in FU1-29 [V/F Pattern]. Users can make the custom V/F pattern by setting four points between FU1-22 [Starting Frequency] and FU1-21 [Base Frequency].

Output Voltage

100%
FU1-37
FU1-35
FU1-33
FU1-31		Output
FU1-30	FU1-36	Frequency
FU1-32	FU1-34	Base Freq.
	[User V/F]

☞Note: When the ‘User V/F’ is selected, the torque boost of FU1-26 through FU1-28 is ignored.

FU1-38: Output Voltage Adjustment

This function is used to adjust the output voltage of the inverter. This is useful when using a motor that has a lower rated voltage than the main input voltage. When this is set at 100%, inverter outputs its rated voltage.

Output Voltage

100%

When set at 50%

50%

Output

Frequency

FU1-21 [Base Freq.]

☞Note: The inverter output voltage does not exceed the main input voltage, even though FU1-38 is set at 110%.

FU1-39: Energy Save Level

This function is used to reduce the output voltage in applications that do not require high torque and current at its steady speed. The inverter reduces its output voltage after accelerating to the reference frequency (steady speed). This function may cause over-current trip due to the lack of output torque in a fluctuating load.

This function does not work with 0% set point value.

Output Voltage

100%

80%

Output

Frequency

Reference Frequency

(Steady Speed)

[When Energy Save Level is set at 20%]

☞Note: This function is not recommended for a large load or for an application that need frequent acceleration and deceleration.

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