failure Huanyang VFD HY01D523B
- andypugh
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If you "show pin" again after the VFD is enabled do you see any data?
(Such as DC bus voltage)
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- Manu663
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So I guess I must try in LinuxCNC right ?
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- andypugh
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Or, before enabling the component:
loadusr halmeter
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- Manu663
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when I type the command hy_vfd.enable 1 this becomes TRUE
no message related to DC bus voltage
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- andypugh
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hy_vfd.DCVno message related to DC bus voltage
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- Manu663
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- andypugh
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If ACV and DCV both show as zero, and the VFD is powered up then that rather shows that there is no data transfer taking place.
(Which is what we suspected)
You have communicated to the VFD with other software, I believe? Does that still work with the current VFD settings? Does that allow you to confirm the bits. parity and stop bit setting which work with the VFD?
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- Manu663
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I tried varying the baud rates from 9600, then 19200 and finally 34800 (VFD [PD164] and software) and the communication with the port is only effective at 9600.
The values I can read on the other software are as follows:
baud rate: 9600
data bit: 8
parity: none
stop bit: 1 (I have the following choice: none, one , two, OnePointFi (?)
Modbus ID: 1
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- andypugh
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I had a problem with communications between the Huanyang 2.2 KW inverter and the Mach 3, I discovered that there had to be a connection between DCM (digital common) on the inverter and the PC, once that was established everything worked as it should. Although communications work on 2 wire, the reference point is apparently the common ground.
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- Manu663
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I don't understand what I should test, I used the online translation to make sure I didn't miss anything but I must have burnt out neurons: I don't understand. Should I bridge the DCM terminal of the VFD with the GND (earth)?
I've tried so many things and manipulated so many parameters without really knowing what I was doing that I've just spent the morning in the garage to start from scratch and follow the procedures you recommended from the beginning again without success.
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