Question:
How does module EMF2174 (CAN address module) affect the CAN baud rate of the controller?
Answer:
The CAN address module EMF2174 is plugged onto the AIF interface of the controller. When the controller is switched on, the module is supplied automatically with voltage. The module then writes the set node address and baud rate to Lenze codes L-C0350 and L-C0351. The module releases a CAN reset node via code L-C0358. Thus, the modified codes L-C0350 and L-C0351 are accepted/activated by the CAN device.
Note: The initialisation of the CAN system bus (X4) is faster than the initialisation of the CAN address module EMF2174. This means that the system bus is ready to operate for a short period before the CAN address module changes the system bus settings. Make sure that no CAN communication is on the bus during this time. Otherwise, bus problems may occur because of an incorrect baud rate of the system bus which is ready for a short period.
As of software version 1.1 of the module, code L-C0003 (save parameter set) is also written after code CAN Reset Node (L-C0358) has been written. This means that the problem only occurs when the CAN baud rate is changed for the first time. Because of the non-volatile saving under L-C0003, the system bus now initialises correctly at once (e.g. after mains switching of the servo controller).
