In order to use an SCR voltage controller to control a treadmill motor usually the potentiometer that comes with the SCR needs to be replaced with a smaller one. Using two smaller ones of different sizes gives you a course and fine speed control. This video shows you how to determine what size potentiometer you need and if you so choose, how to run two of them for fine speed control.
Affiliate links to items in this video:
SCR Voltage controller:
SCR voltage controller [ Ссылка ]
100 amp Bridge rectifier [ Ссылка ]
20 Amp circuit breaker [ Ссылка ]
OR
15 Amp circuit breaker [ Ссылка ]
Emergency stop switch [ Ссылка ]
3PDT direction switch [ Ссылка ]
OR
DPDT center of switch [ Ссылка ]
Toroid Core for AC inductor/choke [ Ссылка ]
10K potentiometer [ Ссылка ]
20K potentiometer [ Ссылка ]
100K potentiometer [ Ссылка ]
150K potentiometer [ Ссылка ]
Inclosuers and inclosure parts:
8” X 6” X 4” hinged box [ Ссылка ]
8” X 10” X 4” Power supply box [ Ссылка ]
12” x 12” x 4” Large component box [ Ссылка ]
7.9” x 4.7” x 2.95” Large plastic box [ Ссылка ]
6.22” x 3.54” x 2.36” Medium plastic box (the one I put all the parts in) [ Ссылка ]
Cable Gland [ Ссылка ]
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