BENSHAW RSi GX Series Hardware Manual page 94

6 - Parameter Descriptions
H22: Speed Search Select
Range:
Description:
88
Frequency
Reset
Run
command
When H21 is 0
0-15 (Default: 0)
This function is used to catch a spinning motor after Power ON, Fault Reset
and Instant Power Failure without waiting for the motor to stop. The speed
search gain should be set after considering the inertia moment (GD2) and
magnitude of torque of the load. F37 [Load Inertia] must be set to the
correct value to make this function operate properly.
This parameter will estimate the motor speed and try to match it's speed
rather than starting at 0Hz.
The following table shows 4 types of Speed Search Selections.
0
1
2
3
4
H22
5
6
7
8
9
10
11
12
13
14
15
Speed
Speed Search
Search during
during H20 Instant
[Power ON Power
Start] Failure
Restart
Bit 3 Bit 2
- -
- -
- -
- -
ü
-
ü
5
ü
-
ü
-
ü
-
ü
-
ü
-
ü
-
ü ü
ü ü
ü ü
ü ü
When H21 is 1
Speed
Search Speed
during H21 Search
[Restart during
after fault Acceleration
reset]
Bit 1 Bit 0
- -
ü
-
ü
-
ü ü
- -
ü
-
ü
-
ü ü
- -
ü
-
ü
-
ü ü
- -
ü
-
ü
-
ü ü