LSIS sv-ig5a - 8.11 Speed Search Function

8-16
8.11 Speed search
Group
Display
Parameter Name
Setting
Range
Default
Unit
Function
group 2
H22
[Speed search select]
-
0 ~ 15
0
H23
[Current level]
-
80 ~ 200
100
%
H24
[Speed search P gain]
-
0 ~ 9999
100
H25
[Speed search I gain]
-
200
I/O group
I54
[Multi-function output
terminal select]
15
0 ~ 19
12
I55
[Multi-function relay select]
15
17
 This is used to prevent possible fault from occurring if the inverter outputs the voltage
during operation after the load is removed.
 The inverter estimates the motor rpm based on output current. Therefore, detecting exact
speed is difficult.
The following table shows 4 types of Speed search selection.
H22
Speed search
during H20 –
[Power ON start]
Speed search
during Instant
Power Failure
restart
Speed search
during H21-
[Restart after
fault reset]
Speed search
during
Acceleration
Bit 3
Bit 2
Bit 1
Bit 0
0
-
-
-
-
1
-
-
-

2
-
-

-
3
-
-


4
-

-
-
5
-

-

6
-


-
7
-



8

-
-
-
9

-
-

10

-

-
11

-


12


-
-
13


-

14



-
15




 H23: Limits current during Speed search. Set as the percent of H33.
 H24, H25: Speed search is activated via PI control. Adjust P gain and I gain corresponding to
the load characteristics.
 I54, I55: Signal of active Speed search is given to external sequence via Multi-function output
terminal (MO) and Multi-function relay output (3ABC).
For Service Call 800-848-2504
For Service Call 800-848-2504