Wrong AC supply wiring can destroy PCD7.L79x
Thanks to the analysis of returned modules we have found that several PCD7.L79x devices were damaged due to inconsistent polarity of the connected AC power supply. This can be the case if no attention is paid to the terminal indications "24V" and "GND".
A damaged communication port.
If GND and 24V are mixed on several units connected to the same S-Bus network, one or more serial communication interfaces of the module(s) are destroyed. Please make sure that all PCD7.L60x are connected the same way to the AC power supply as shown below:
PCD7 / Lxxx
Last update: 19.04.2015 17:22
First release: 22.06.2009 12:03