Field winding outputs (only used if you are running a shunt-wound motor; these are left disconnected for permanent magnet motors). Control & Signal Terminals P1, P2, P3: Potentiometer wiper terminals (typically a variable resistor) used to adjust the speed.
If you require the for repair or modification: jymc220bi schematic full
Typically connects to a 4.7-ohm potentiometer used for manual speed control. Field winding outputs (only used if you are
Below is a technical guide and blog-style breakdown for machinists and electronics hobbyists looking for schematic insights and repair tips. Technical Specifications at a Glance Input Voltage: 230 VAC (50/60 HZ) Output Voltage: 0–180 VDC (adjustable) Rated Current: Maximum Power: jymc220bi schematic full