AXIS#.OBS.KO

Description

AXIS#.OBS.KO sets the model gain of the velocity Observer.

This value represents the gain of the electro-mechanical plant of the system. The system has a high gain if it responds quickly and agilely, and this number will be high. For a heavily loaded system with a large inertia mismatch, the system does not respond quickly and is sluggish. This means the value of OBS.KO will be lower.


  • It becomes important that OBS.KO is set correctly to ensure stability as the Observer's bandwidth (AXIS#.OBS.BW) is set lower.

The Observer is made up of a few components. Following is a block diagram of how the Observer is connected in the loops.

Versions

Action Version Notes
Implemented 02-04-03-000  

General Information

Type

Read/Write

Units

(rad/sec2)/A

Range

0 to 1,000,000.000

Default Value

0

Data Type

Float

Stored in Non-Volatile Memory

Yes

Variants Supported

All variants are supported.

Industrial Ethernet Information

EtherCAT CoE and CANopen

Command

Index

SubIndex

Data Type

Units

Float Scale

Access

PDO Mappable

AXIS1.OBS.KO

5017h

03h

Unsigned32

-

1000:1

Read/Write

No

EtherNet/IP

ID

Instance

Attribute

Name

Data Type

Access

User Mappable

7452

1

7452 (0x1d1c)

AXIS1.OBS.KO

Signed32

Read/Write

Yes

PROFINET

Parameter

PNU

Data Type

Access

Units

AXIS1.OBS.KO

7452

Float

Read/Write

-