HP 30 30 manual FU1-38 Output Voltage Adjustment, 100, FU1-39 Energy Save Level, 150

Chapter 6 - Parameter description [FU1]

Related Functions: FU1-21 [Base Frequency]

FU1-22 [Starting Frequency]

FU1-29 [Volts/Hz Pattern]

FU1-38: Output Voltage Adjustment

FU1►Volt control			38	100
38	100.0 %
Factory Default:		100.0 %		100

This function is used to adjust the output voltage of the inverter. This is useful when using a motor with 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

FU1► Energy save		39	0
39	0 %
Factory Default:	0 %		0

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) if the energy save level is set at 20%. 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.

☞Note: This function does not work when ‘Sensorless’ is selected in FU2-40 [Control Mode].

FU1-50: Electronic Thermal (Motor i2t) Selection

FU1-51: Electronic Thermal Level for 1 Minute

FU1-52: Electronic Thermal Level for Continuous

FU1-53: Electronic Thermal Characteristic (Motor type) selection

These functions are to protect the motor from overheating without using additional thermal overload relay. Inverter calculates the temperature rising of the motor using several parameters and determines whether or not the motor is overheated. Inverter will turn off its output and display a trip message when the electronic thermal feature is activated.

FU1► ETH select		50	0
50 ---	No ---
Factory Default:	No		0

This function activates the ETH parameters by setting ‘Yes’.

FU1► ETH 1min		51	150
51	150 %
Factory Default:	150 %		150

This is the reference current when the inverter determines

6-17