This is a simple to use MOSFET Controller with Adjustable Sensitivity and Brakes. This controller features PWM (Pulse Width Modulation) Power and Transistor Braking. The brake circuit also features a unique Coast Mode Function to provide progressive braking for HO Cars or High Magnetic Downforce cars where the car stops aggressively even when there is no braking applied.

This PWM Controller is aimed at the serious club racer, and is quick and simple to setup to suit the car and track conditions.

FEATURES:

• PWM drive and brake control
• 36-step element and 9 point contact
• Switchable Power Coasting allows simulated braking for cars that stop quickly even with no brakes applied
• Sensitivity adjustment (with automatic CURVE)
• Acceleration control
• Adjustable trigger return spring tension
• Single and double finger trigger supplied (easy clip-on change without tools)
• High power, POSITIVE track wiring
• Current rating of 20A peak and handling 8A constant
• Auto reset PTC fuse for over-current protection
• LED with triple function
• Fuse protected with replaceable 16A inline fuse
• Supplied without a plug

Brake control:
(Turn clockwise to increase braking)

• Full braking is the same as a short circuit switch for very strong brakes
• In NORMAL and COAST mode a single rotary control sets the brake strength from full to a gentle action
• If the Brake control is turned all the way anti-clockwise for minimum brakes, but the car still stops too quickly (for example, a high magnet-force HO car, or car that slows rapidly even with no brakes), then the Coast mode can be selected (details in the next section)
• The COAST and NORM select switch is located on the rear fascia under the LAUNCH button (the switch is recessed so that it can't be accidentally switched during a race)

Acceleration and Coast Brake control:
(Turn clockwise to increase acceleration in NORMAL MODE and to increase simulated brakes in COAST MODE)

• In NORMAL mode this control sets the rate of acceleration. The idea is that even though the trigger may have been snatched quickly to full throttle, the controller will only feed power to the car at the rate set by this control; this prevents wasted time during wheel spinning and loss of traction as you exit a corner, or the guide lifting out of the slot with powerful motors
• In COAST mode this control becomes a brake simulation adjustment suitable for those cars that stop almost immediately even with no brakes applied; the idea is that though the trigger has been released, the power fed to the motor decreases at a rate set by this control; once the controller is no longer feeding power, the normal brakes will be applied at the rate you have set under BRAKE CONTROL as above (for these cars the BRAKE will usually have be set to minimum) 

Sensitivity control:
(Turn clockwise to increase sensitivity)

This adjusts the trigger wiper sensitivity to enable you to set the controller feel for any car or track condition; there is a built-in CURVE control circuit (similar to the PWM controller) which works automatically together with the sensitivity adjustment to give quick and easy settings; as the Sensitivity is turned up, so the initial start speed also rises slightly to match

The little blue pre-set adjustment on the right hand side of the wiper element provides an adjustment for the range of the MODE function set on the contact board via the solder bridges

If the THROW ADJUSTMENT option has been fitted, then, when the trigger is released for braking, it only goes back as far as your throw  adjustment has been set, so the start speed can be made quite high with a combination of this adjustment and the sensitivity adjustment

LAUNCH Switch:

• While pressed IN, this switch cuts the feed to the car and motor, even if the trigger is pulled; once released the power feeds in at whatever point the trigger has been pulled to, but at the rate set by the ACCELERATION control; the idea is that your trigger is already pulled in on the start line so that all you need to do is release the switch to give you a quicker start from the line

• Another useful feature of the Launch Switch is that it will act as a coasting brake when pressed; if you have a section of track that doesn't really need as much braking as you have set, then you can press the switch to allow the car to coast under its own braking

Trigger Return Spring Tension and Optional Throw Adjustments:

• Spring Tension: Under the trigger is the adjustment screw; it operates against a cam arm that pulls the return spring; turn clockwise to increase tension and anti-clockwise to reduce it (you can see it work through the clear handle) 
• Throw Adjust: Through the access hole in the rear fascia is the throw adjustment screw; this sets the position that the trigger returns to when released for braking; turn clockwise to move the stop point further in (you will see the trigger move as you screw it in and out); the adjustment sets the amount of travel for the trigger by moving the position of the brake contact; the further in you set it, the higher the start-up speed of the car, because, as the brake releases, the trigger is already some way across the element

Power LED : 

• LED Power Indicator. (BLUE for POSITIVE WIRED Track  and RED for NEGATIVE WIRED Track.)
• The LED extinguishes when the relay energises and full power is delivered to the car