Fu2-73: User Display Selection; Fu-74: Gain For Motor Speed Display; Fu2-75: Db (Dynamic Braking) Resistor Mode Selection; Fu2-76: Duty Of Db (Dynamic Braking) Resistor - LG SV-iS5 Instruction Manual

Setting
Range
0 DRV-00 [Command Frequency]
1 DRV-01 [Acceleration Time]
2 DRV-02 [Deceleration Time]
3 DRV-03 [Drive Mode]
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 Function: DRV-11 [User display selection]
Select the display as shown below in FU2-73 [User
display selection].
Setting FU2-73 Name
Output
0 Voltage
voltage
Output
1 Watt
power
☞ Note: The displayed vlaue of " Watt" is approximate
value.
FU2-74: Gain for Motor Speed Display
FU2? RPM factor
74 100 %
Factory Default:
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
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Description
Description
Display output voltage of
the inverter (Factory
setting)
Display output power of the
inverter
74 100
100
115
Chapter 6 - Parameter Description [FU2]
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 Int. DB-R
Factory Default:
Int. DB-R
This code is used to protect the DB resistor from over
heating.
Setting Range
LCD 7-Seg
This is selected when there is no resistor
None 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
1~5 HP inverters because they have
1
Int. DB-R
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
1~30 HP inverters. This must be selected
2
Ext. DB-R 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
l
Continuous Turn On Time expires during dynamic
braking, and an over voltage fault could 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
l
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].
Chapter 1. Installation or Power Terminal Wiring.
This does not apply to 40~100
l
the Optional DB unit to use DB resistor.

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

FU2? DB %ED
76 10 %
Factory Default:
10 %
75 1
1
Description
Refer to Basic Wiring in
HP inverters. They need
76 10
10