PWM Motor Control Board
- AC Grade motor drive: two relays and grade pot pass through.
- PWM speed command input.
- Motor relay with safety circuit over ride.
- Speed feedback pass through from hall effect or reed switch.
- 12 volt 1 amp display power supply
- Diagnostic LEDs: Motor power, grade up/down, AC power, PWM, speed sensor,
display power, run away, current limit, motor voltage, elevation motor.
Motor Drive Section:
- 16KHz PWM drive delivering 25 amps continuous and 35 amps max into a 90
- Max speed and IR compensation trimmers..
- Over speed, over current and over voltage safety circuits.
- Breaking circuit maintains low speed at high grades.
- Power requirements 120/220 Volts AC at 20/10 Amps max.
- On board voltage regulators.
100 pcs: $135
1000 pcs: $120