CALCCOG

ASCII - Command

CALCCOG

 

 

Syntax Transmit

CALCCOG [Data]

 

Syntax Receive

CALCCOG

Available in

 

Type

Command

MMI

No

ASCII Format

-

CANBus Object Number

No

DIM

rpm

PROFIBUS PNU

No

Range

0 .. 5

DPR

No

Default

2

 

Opmode

0

Data Type Bus/DPR

-

Drive State

Enabled

Weightning

 

Start Firmware

5.41

 

Configuration

No

Revision

1.9

Function Group

Feedback

EEPROM

-

Short Description

Determing the Cogging Table

Description

CALCCOG starts the automatic determination of the cogging table (see also COGGING). To do this, the output stage must be enabled, and the motor must be able to move freely, ideally without any mechanical coupling. The gain of the velocity controller GV should be tuned as high as possible.

While this command is being executed, the motor makes two full turns at the predefined speed. During the first turn, the cogging table values is coarsely identified. The second turn makes a fine identification for the cogging table values.

After this function has been completed, the 24 V power supply must be switched off and on to copy the determined table to the FLASH.

Until now, The CALCCOG function is reasonable when a Resolver, Hiperface- or an EnDAT-feedback device has been selected as the feedback device (FBTYPE=0, 2 or 4).

Before starting this processing, the parameter COGGING must be firstly set to one. Please reference to the ASCII command COGGING.