setting up Moeller VFD to chinese spindle

[ecat]

The DV51 manual I'm looking at online says the RJ45 port is RS485, ie it won't work when connected to a PC serial port without a RS232 to RS485 adapter. No biggie, easy enough to find, probably quite easy to make and I'm sure I've seen a USB type serial port that talked 485. I'll hunt something out if you need.

Of course if your DV51 is RS232 or you already have the 'special' cable then you should ignore this, lol.

Page 73, table 20...
RJ54 pin 5 : Send/receive, positive data channel
RJ54 pin 6 : Send/receive, negative data channel

... half duplex differential 5 volts

This one uses the Modbus protocol so you need to ensure the device IDs are set, unless there is a broadcast address which makes things easy :)

RE: Siemens manuals, you should take a look at their automation software + manuals some day :(


Edit:
The manual I'm looking at, lots and lots to read on communications http://www.inverter.co.uk/applications/manuals&datasheets/moeller-dv51-manual.pdf