PRO-150 V1.0 11/18
Page 2
www.4qd.co.uk
1. Introduction
The Pro 150 is a digital, four quadrant motor controller for battery operation of
permanent magnet DC motors. It is suitable for supply voltages between 16V and
48V. The Pro-150 will not operate from 12v. It can deliver a motor current of up to
150A for short periods and up to 60A continuously.
The Pro-150 is intelligent and, at power-up checks itself and its connections for
faults: if it finds a fault, it will not operate and will display a fault code. If all is
correct, it then starts to operate and the display (if fitted) will either show the battery
voltage if the motor is turning, or Pd if the Pro-150 is idle. When a display is not
fitted, a sounder is present which will give a coded series of pulses to indicate any
fault found.
2. Do's and D
on’ts
Do
Please do read this manual.
Disconnect the battery before
doing any work to the system.
Fit motor suppression
components.
Twist the motor wires together.
Use fully insulated power
connectors.
Keep the battery wires short.
Fit an appropriate fuse or circuit
breaker, and battery isolator.
Insulate all input circuitry so it
cannot connect to chassis
(battery -ve).
Do not
Allow metal swarf, water or dirt
to contaminate the board.
Disconnect the motor leads
when the motor is running.
