Question:
Can you use the EASY Starter to save the parameters of a Lenze servo drive fail-safe in a Lenze controller-based system?
Answer:
Yes, you can, but you have to make sure that the currently active PLC program in the controller was saved as a boot project AND that the controller was started with it.
To start the controller with the boot project, it is not enough to execute the menu command 'Online>Reset warm' or 'Online>Reset cold' via the PLC Designer. For this, the controller must be switched off and on again.
Background:
When the controller is switched on, the controller loads the complete parameter sets into all servo drives, e.g. i700 connected via EtherCAT. I.e. to save a parameter set safe against mains failure after changing a parameter value in the i700, the parameter set must be saved in the controller. For this, connect the EASY Starter via Ethernet with the Lenze controller and execute parameter set saving. In this case, the parameters of all i700 devices connected will be read and saved in a temporary directory of the controller, which is not safe against mains failure.
Only if the controller has been started with the boot project, the parameter sets read out will be additionally saved fail-safe on the SD card. This ensures that the saved parameter sets match the PLC boot project of the controller.
If the project is changed and you log in with online change, you can still save parameter sets fail-safe via the EASY Starter. After an online change, you have to create a new boot project to make the changes in the project safe against mains failure. Creating a boot project overwrites all parameter changes saved fail-safe with the EASY Starter so far.
Apart from the i700, i950 and i750 servo drives, you can also save parameter sets in this way for the i550 frequency inverter and the I/O system 1000 EPM-S130 and -S131 (EtherCAT bus coupler).
