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Controlling Washing Machine Motor with an Arduino

djb-systems

Sep 15, 2022
2
Joined
Sep 15, 2022
Messages
2
Hi All

I have an old Bosch 3 phase brushless motor from a Washing Machine and its working Inverter board, now I know I could buy a VFD and control the motor that way but I was wondering if anyone has had luck connecting an arduino to a washing machine inverter board and controlling the motor? The invertors brains is 256mc206 microchip and the pins are

1 - TX02
2 - RX02
3 PRG_CLK
4 PRG_Data
5 Reset
6 GND
7 +3.3v
8 SCK
9 SDI
10 SDO
11 SDA
12 SCL

I will continue researching but if anyone has already done this, then no point reinventing the wheel, so any help is appreciated.

Cheers

DJ
 

Minder

Apr 24, 2015
3,318
Joined
Apr 24, 2015
Messages
3,318
Incidentally VFD's cannot control a brushless motor unless it is of the AC Induction motor type, PMAC/BLDC do not control at least not that well for most VFD's.
.
 

djb-systems

Sep 15, 2022
2
Joined
Sep 15, 2022
Messages
2
@Minder

Thanks for the reply, ahh I am not much of in the know how when it comes to this.

I think it could be a BLDC
Specs on the motor
Permanent Magnet Synchronous Motor
220-240 50/60Hz
526W 16755r/min 2.4A
 

Minder

Apr 24, 2015
3,318
Joined
Apr 24, 2015
Messages
3,318
Yes PMSM motors do not work with most VFD's out there.
256mc206 micro are dedicated motor controllers, it may be difficult to interface without the code listing etc.
 
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