LG C Series User Manual

Page 107

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Chapter 11. Monitoring

2: FDT-3



It activates when run frequency meets the following condition.



Active condition: Absolute value (FDT level - run frequency) <= FDT Bandwidth/2

Group

LED

Display

Parameter Name

Set

value

Min/Max

range

Factory

default

Unit

I52

[Frequency Detection
level]

-

30.0

I/O group

I53

[Frequency Detection
Bandwidth]

-

0/400

10.0

Hz


ƒ It cannot be set above F21- [Max frequency].



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

Freq.

MO

Run

command

25Hz

30Hz

35Hz

3: FDT-4



Become active when run frequency meets the following condition.



Active condition

Accel time: Run Frequency >= FDT Level

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

Group

LED

Display

Description

Set

value

Min/Max

range

Factory

default

Unit

I52

[Frequency Detection
level]

-

30.0

I/O group

I53

[Frequency Detection
Bandwidth]

-

0/400

10.0

Hz


ƒ Cannot be set above F21- [Max Frequency].



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

Freq.

MO

Run

command

25Hz

30Hz

4: FDT-5



Activated as B contact contrast to FDT-4.



Active condition

Accel time: Run Frequency >= FDT Level

107

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