Speed Search - Baldor VS1MD User Manual

8.7
Customizing for Your Application

Speed Search

Group Display
H22
H23
Function
group 2
H24
H25
t32
I/O group
t33
This is used to prevent possible faults 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 selections.
Speed Search
H20[Power ON
0
1
2
3
4
5
H22
6
7
8
9
10
11
12
13
14
15
H23: Limits current during Speed search. Set as a percentage of H33.
H24, H25: Speed search is activated via PI control. Adjust P gain and I gain
corresponding to the load characteristics.
t32, t33: Signal of active Speed search is given to external sequence via Multi-function
output terminal (MO) and Multi-function relay output (3ABC).
Parameter Name
[Speed Search Selection]
[Current Level]
[Speed Search P Gain]
[Speed Search I Gain]
[Multi-function Output
Terminal Selection]
[Multi-function Relay Selection]
Speed Search
During During Instant
Power Failure
Start] Restart
Bit 3 Bit 2
- -
- -
- -
- -
-
-
-
-
-
-
-
-
Setting Range Default
- 0 to 15 0
- 80 to 200 100
- 100
0 to 9999
- 200
15 12
0 to 18
15 17
Speed Search Speed Search
During
H21[Restart After Acceleration
Fault Reset]
Bit 1
-
-
-
-
-
-
-
-
Unit
%
During
Bit 0
-
-
-
-
-
-
-
-
8-15