Skip to main content

Parameters

Object's Attributes

Each CANopen Object in emDrive inverter has several attributes. Following attributes are related to changing, storing and loading values of objects.

Attribute Description
Access Type Defines if the object is readable and/or writable
Default Value Default value is value that the object is set to when setting parameters to factory/manufacturer defaults
Read Level Access level that is required for reading value of object
Write Level Access level that is required for writing value to object
Persistent Defines if the value of object is saved in permanent storage (keeps value after reboot or power cycle)

Object which have Persistent attribute set to "1" are stored in permanent memory and are therefore called "Parameters".

Parameter Access LevelsLevel

Each Parameter has attribute for Read and Write level. To be able to read or write to object Inverter must be unlocked to required level.

There are following Access Levels:

Level Name Description
1 End User Object is available to End User without any need to unlock the emDrive
2 Customer Objects are available by default. Can be locked with "Customer Key"
3 Production Objects only available in production to write production related and calibration objects
4 Development Objects are available only during development 

Access Level CANopen Objects

Objects at index 0x2010 are used for Access Level functionality

  • subindex 1 -> "Access_Level__Current" shows current access level that inverter is set to, objects with equal or lower access level can be accessed.
  • subindex 2 -> "Access_Level_Key_input" write your key to unlock the device, depending on the key, specific level will be unlocked.
  • subindex 3 -> "Access_Level_Customer_Key" writing value to this object will lock the device to "End User" (after reset). The same key must be used to unlock the device to "Customer" level. Remove locking by writing value "0".