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== Overview ==

Variable frequency drive for 3-phase spindle motors. They are found on eBay, Amazon, AliExpress, etc, typically marketed for Chinese water cooled spindles.

== Model Numbers ==

{| class="wikitable"
! Model
! Input Power
! Output Power
|-
| HY01D523B
| 1PH/3PH 220VAC±20% 50Hz/60Hz
| 3PH 0-220VAC 1.5kW 7A 0.5-400Hz
|-
| HY02D211B
| 3PH 110VAC±20% 50Hz±5Hz
| 3PH 0-110VAC 2.2kW 20A 0.5-400Hz
|}

[http://www.etech.net.au/Huanyang/HY%20Series%20Inverter%2020100627.pdf#page=4 Page 4] shows the model number scheme

== Wiring Diagram ==

[http://www.etech.net.au/Huanyang/HY%20Series%20Inverter%2020100627.pdf#page=11 Page 11] shows the description of the terminal blocks

== Online Resources ==

[http://www.etech.net.au/Huanyang/HY%20Series%20Inverter%2020100627.pdf Huan Yang HY Series Inverter User Manual]

https://www.exoror.com/datasheet/VFD.pdf