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Chapter 3 - Device Profile
CD1-k – CANopen Communication Profile
3.13.12 – COGGING TORQUE COMPENSATION (OPTION)
3.13.12.1 - Object 3491h: Enable / Disable Cogging Torque Compensation
The Cogging compensation option available in the CD1-k amplifier range allows to cancel the motor cogging
torque effects for specific applications where torque accuracy higher than 1 % is required.
The CD1 amplifier must be equipped by the factory for getting the cogging compensation option (reference CD1-k
- U / I - CT). The cogging torque compensation is only valid if the cogging torque acquisition procedure has been
performed before (see
CD1-k manual
).
Index 3491h
Name
Enable / Disable Cogging Torque Compensation
Object Code
VAR
Data Type
Unsigned16
Object Class
all
Access rw
PDO Mapping
No
Default Value
eeprom
Bit Number
Description
8
Cogging Torque Compensation
0 => Cogging Torque Compensation disabled
1 => Cogging Torque Compensation enabled
3.13.12.2 - Object 3492h: Cogging torque acquisition procedure
Writing to this object will execute the cogging torque acquisition procedure. For more information about the
cogging torque acquisition procedure, please see
CD1-k manual
.
Index 3492h
Name
Cogging torque acquisition procedure
Object Code
VAR
Data Type
Unsigned32
Object Class
-
Access wo
PDO Mapping
No
In order to avoid running the cogging torque acquisition procedure by mistake, the cogging torque acquisition is
only executed when a specific signature is written to the this object. This signature is 'coga'.
Signature MSB
LSB
ASCII a
g
o c
hex 61h 67h 6Fh 63h