6/15/2019 10:15 PM | |
Joined: 8/22/2016 Last visit: 8/22/2024 Posts: 4 Rating:
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Hello gays, I have a problem with frequency regulators sinamics v20 on modbus rtu communication. In addition to them, I have the sensors of the manufacturer regeltechnik, belimo valves actuators and samsung dvm heat pump. I have not yet got Belimo's actuators in communication, and with all other devices, PLC is communicating. The problem occurs when I start one of the frequency regulators. After that, I am no longer able to start any more, nor to switch off the already included frequency regulator, while, for example, the heat pump can be operated while the frequency converter is on. The frequency converter is switched off automatically when error F72 appears. All other frequency regulators also appear in this error at the same time. I tried to disconnect the heat pump from the communication and then test it again and got a somewhat better situation in the sense that I can run other frequency controllers and stop them, but the response time is very long, even over 10, 15 minutes. After that, I disconnected all the communication devices except frequency controllers, and in that case they worked well. I have 11 components connected to Modbus RTU network and they are not sorted by addresses, from at least to the largest, but randomly. PLC is Wago pfc200. I someone had the same or similar problem, please send me some advises. Thank you in advance! ------------------------------------------------------------------------------------------ |
Last edited by: Jen_Moderator at: 06/17/2019 10:29:28New subject after splitting |
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