Hi All, I am currently at wits end and need some help from some people more knowledgeable than I.
For the past 2 weeks I have been trying to customize GS2_vfd.c (as well as modbus.c/.h) to work with my VFD which is a Huanyang HY02D223B. (The manual is on CNCzone http://www.cnczone.com/forums/attachment.php?attachmentid=79285&d=1239132143) Since I have only ever programmed in basic and that is only PicMicros, I am finding this exceptionally difficult. I have managed to fool (butcher) with it plenty and get an output that would probably work if I could only decipher how to read the input. I am sure that I have gone about it all wrong and was wondering if anyone had a modified driver that was more suited to my requirements. My VFD takes single requests and replies with single answers that is I can only read one thing at a time. To Read the programmed Frequency I need to send [01][04][03][00][00][00][F0][4E] [01] Slave address [04] read control status [03] request length [00] read set Frequency [00 and 00] extra request padding [F0 4E] CRC Generating the reply of [01][04][03][00][03][E8][F0][F0] corresponding to 10.00Hz If I want to know the frequency out of the vfd I send [01][04][03][01][00][00][A1][8E] out amps is [01][04][03][02][00][00][51][8E] etc etc, until I have all the values required 2 of the control requests are as follows sent [01][03][01][08][F1][8E] Drive Stop received [01][03][01][09][30][4E] send [01][03][01][01][31][88] Drive run receive [01][03][01][00][F0][48] and to set the run frequency of the drive I send [01][05][03][03][E8][00][73][8E] Set drive frequency 10.00 Hz receive [01][05][02][03][E8][B8][72] [01][05][03][13][88][00][5A][4B] set drive frequency 50.00 Hz receive [01][05][02][13][88][B5][9A] I though that I could nut this out so that I didn't have to bother anyone but this is driving me crazy. I tried to modify the classic ladder modbus routine also but had no luck with that either. If someone has a stripped down version of the GS2 files that I may have better luck with I would greatly appreciate it. Thanks, Jayson. (Horsham, Australia) _________________________________________________________________ Want to stay on top of your life online? Find out how with Windows Live! http://windowslive.ninemsn.com.au/ ------------------------------------------------------------------------------ Register Now & Save for Velocity, the Web Performance & Operations Conference from O'Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance & Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
