Commissioning
Adjusting the terminal
This documentation applies from firmware 02, Revision 0017.
Note: Input voltage and output voltage are monitored, the limits can be set in the CoE. This can look like the following, for example:
- Install the current ESI (XML file) EL2596-00x0-xxxx in TwinCAT (usually under C:\TwinCAT\3.1\Config\IO\EtherCAT\).
If necessary, download the latest ESI from the Beckhoff website. - If the terminal has already been used to perform tests or if you have performed a firmware update, perform a "Restore default parameter" in the CoE: enter “0x64616F6C” in CoE parameter 0x1011:01
- Enter the key data of the supply in the terminal
In 0x8000:03 the supply voltage “Supply Voltage”
Warning and ErrorLevel for this in 0x8000:11/12 (lower limit only) - Determine the key data of the intended LED:
- Nominal current of the LED in continuous light mode or maximum permissible limit current when overdriving [mA]. Enter this in CoE parameter 0x8000:02 “Target current”
- Required forward voltage for that [V]
Reason: the current controller regulates the forward voltage itself in order to reach/maintain the desired load current.
Self-heating effects, for example, are thus compensated. So that the load current is as accurate as possible in the first few milliseconds after switch-on, however, the controller needs to know the approximate forward voltage that it has to operate with. The forward voltage or characteristic curve of an LED with a specified forward current can also be determined automatically by the terminal (see Automatic determination of the output voltage and display of the characteristic curve)
Enter the forward voltage in 0x8000:04 “Output voltage”
Warning and ErrorLevel for this in 0x8000:13/16
5. The specific settings for the various operation modes can be found in the chapter Setting the operation modes.
6. Further useful CoE settings
- The information to be transmitted for the real-time diagnosis can be set in 0x8002:11 and 0x8002:19.
- Diagnostics over CoE
- For safety’s sake these CoE data can also be entered into the Startup list. If the EL2596 is exchanged later, the online CoE data are no longer available. The System Manager then writes the data into the new terminal.