HP 30 30 manual FU2-73 User display selection, FU2-74 Gain for Motor Speed Display

Chapter 6 - Parameter Description [FU2]

4	DRV-04 [Frequency Mode]
5	DRV-05 [Step Frequency 1]
6	DRV-06 [Step Frequency 2]
7	DRV-07 [Step Frequency 3]
8	DRV-08 [Output Current]
9	DRV-09	[Motor Speed]
10	DRV-10	[DC link Voltage
11	DRV-11	[User Display selected in FU2-73]
12	DRV-12	[Fault Display]

FU2-73: User display selection

Related parameter : DRV-11 [User display selection]

Select the display as shown below in FU2-73 [User display selection].

Setting	FU2-73	Name	Description
0	Voltag	Output	Display output voltage of the
	e	voltage	inverter (Factory setting)
1	Watt	Output	Display output power of the
		power	inverter

Note) The display of “Watt” is approximate value.

FU2-74: Gain for Motor Speed Display

FU2► RPM factor		74	100
74	100 %
Factory Default:	100 %		100

This code is used to change the motor speed display to rotating speed (r/min) or mechanical speed (m/min). The display is calculated by following equation.

Rotating speed = 120 x F / P, where F=Output frequency, P= motor pole number

Mechanical speed = Rotating speed x Motor RPM Display Gain

Related Functions: DRV-00 [Output Frequency]

DRV-09 [Motor Speed]

FU2-31 [Number of Motor Pole]

FU2-75: DB (Dynamic Braking) Resistor Mode Selection

FU2►		DB mode				75	1
75		Int. DB-R
Factory Default:				Int. DB-R			1
	This code is used to protect the DB resistor from over
	heating.
	Setting Range					Description
	LCD		7-Seg
	None				This is selected when there is no resistor
				0	connected. At this time, inverter does not
					generate DB turn on signal.
					This is selected when using the internal
					DB resistor. This must be selected for
	Int. DB-R			1	1~5 HP inverters because they have
					internal DB resistor as a default.
					Enable Duty (%): 2 ~ 3 %
					Continuous Turn On Time: 5 seconds
					This is selected when using an external
					DB resistor. This must be selected for
	Ext. DB-R				7.5~10 HP inverters. This must be
				2	selected for 1~5 HP inverters in case of
					using an external DB resistor.
					Enable Duty (%): 0 ~ 30 %
					Continuous Turn On Time: 15 seconds

☞The inverter turns the DB turn on signal OFF when the Continuous Turn On Time expires during dynamic braking, and an over voltage fault can occur. When this happens, increase the deceleration time or install an external high- duty DB resistor.

☞Install an exterior high-duty DB resistor when the load accelerates and decelerates frequently. Set the FU2-75 [DB Resistor Mode selection] to ‘Ext. DB-R’, and set the FU2-76 [Duty of DB Resistor].

☞This does not apply to 15~30 HP inverters. They need the Optional DB unit to use DB resistor.

FU2-76: Duty of DB (Dynamic Braking) Resistor

FU2►	DB %ED		76	10
76	10 %
Factory Default:		10 %		10

This must be set when using an external DB resistor. The

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