Chapter 11. Monitoring

Decel time: Run Frequency > (FDT Level – FDT Bandwidth/2)

Group

LED

Parameter Name

Set

Display

value

 

 

I/O group

 

I52

 

[Frequency

Detection

-

 

 

 

 

 

Level]

 

 

 

 

 

 

 

 

 

 

 

 

 

I53

 

[Frequency

Detection

-

 

 

 

 

 

Bandwidth]

 

 

 

 

 

 

 

 

 

 

ƒIt cannot be set above F21- [Max Frequency].

Min/Max

range

0/400

 

 

 

 

 

 

 

Factory

 

 

Unit

 

 

default

 

 

 

 

 

 

 

 

30.0

 

 

Hz

 

 

 

 

10.0

 

 

 

 

 

 

 

 

 

 

 

 

When setting I52, I53 to 30.0 Hz and 10.0Hz, respectively

30Hz

Freq.

MO

Run command

25Hz

5: Overload {OL}

Refer to Page 12-2 Overload Warning and trip

6: Inverter Overload {IOL}

Refer to Page 12-6 Inverter Overload

7: Motor Stall {STALL}

Refer to Page 12-3 Stall prevention

8: Over voltage Trip {Ovt}

Become active when DC link voltage exceeded 400V and led to Over voltage trip.

9: Low voltage Trip {Lvt}

Become active when DC link voltage decreased to 200V and led to Low voltage trip.

10: Inverter heatsink overheating {OHt}

Become active when overheated inverter heatsink triggers protection function.

11: Command Loss

Become active when frequency command is lost.

108

Page 108
Image 108
LG Electronics C Series manual ƒ It cannot be set above F21- Max Frequency