Basic configuration
Each channel can be configured individually. The parameters can be found in the following CoE objects:
Channel | CoE object |
|---|---|
1 | 0x8000 |
2 | 0x8010 |
3 | 0x8020 |
4 | 0x8030 |
Take particular care when setting the following parameters before operation:
Maximum output current
CoE parameter 0x8pp0:10 "Max Current". Factory setting: 100 % corresponding to 2 A.
Set the parameter to a value less than or equal to the maximum permissible current IL,max of the connected load. The specification is in percent of the maximum possible output current of 2 A:
Example: For a load with a rated current of 0.5 A, the parameter "Max Current" must be set to 25 or lower. (corresponding to 25 % of 2 A)
Operation mode
CoE parameter 8pp0:07 "Operation Mode"
You can choose between the operation modes "Current Control" and "Voltage Control" for each channel. You can enable or disable the current controller by selecting the operation mode.
- "Current Control": current controller enabled.
In this operation mode, you specify the current intensity. The current controller regulates the PWM duty cycle so that the specified current flows through the load.
The prerequisite for this operation mode is an inductive load with at least 1 mH. - "Voltage Control:" current controller disabled.
In this operation mode, you specify the PWM duty cycle directly. The current controller is disabled.
A graphical representation of the signal flows of the operation modes can be found in the chapter Signal flow.
In the factory setting, the operation mode "Current Control" is pre-set; the current controller is enabled. For inductive loads, "Current Control" is generally the correct operation mode.