JD2A-S controller
1. Usage conditions and main technical data:
Altitude ≤ 1000m
Environmental temperature -10 ℃~+40 ℃
Relative humidity ≤ 90% (below 20 ℃)
The maximum vibration acceleration within the frequency range of 10Hz~150Hz is ≤ 0.5g
There are no corrosive or explosive gases around
Working power supply voltage 200 ± 10% V.AC
Three phase speed measuring generator voltage to speed ratio ≥ 2B/100r/min
Maximum rated output 90V/5A DC
Controllable motor power: 0.55kW~45kW
Speed change rate ≤ 2.5%
Stability accuracy ≤ 1%
Speed regulation range: 100~1420 revolutions per minute (based on the speed regulation nameplate)
2. Working principle
The JD2A-S electromagnetic speed control motor control device consists of a speed regulator, phase-shifting trigger and thyristor main circuit, speed feedback, and a given circuit (speed digital display circuit), as shown in the following block diagram.

3. Installation instructions
4. Debugging and operation
5. Troubleshooting methods
6. Precautions (When the motor stops running, the controller input 220V power must be cut off.)