Page 2
4QD series controller instructions.
3
Contents
1
Foreword
1
2
Introduction
1
3
Contents
2
4
Dos and Don’ts
2
5
Specifications
3
6
Features
4
7
Controls
5
8
Adjustments
6
Gain
Ramps
¶ Current
¶ Reverse Acceptance Threshold
¶ Reverse Speed
9
Wiring
7
10 Power connections
8
Battery & motor wire size
Battery wiring
¶ Reverse polarity protection
¶ Circuit breaker or fuse.
Motor wiring
Motor polarity
Using several motors
11 Control wiring
10
Pre-wired models
Connectors
6 way connector
4 way connector
3 way connector
12 Wiring - various
11
Ignition switch
Ignition light
Speed control pot
¶ Top Speed adjustment
High Pot lockout
Battery meter
Voltage Control
Wig-wag (Joystick)
Reverse switch
¶ Brake solenoid
¶ Inhibit input
Hand control box
13 Output current & Heatsink
14
14 Mounting & Earthing
13
15 Waterproofing
15
16 Battery charging
15
17 Fuse
16
18 Fault finding
16
4
Dos and Don’ts
Do
Set up the gain, accel and decel presets
to suit your battery voltage and requirements. Page 6.
Keep the controller covered at all times
- or water, dust and dirt will enter.
Fit reverse polarity protection
- this is also an emergency power disconnect so is necessary for safety.
Make sure terminal nuts are tight
- current through a loose connection will burn it.
Keep the motor in good condition.
Damaged brushgear and commutators can blow the controller.
Fit a motor suppression capacitor
. A 10n ceramic across the motor brushes, as close to the motor as
possible, can greatly increase system reliability.
Do not
Drill or otherwise modify the metal base
- it’s impossible to keep metal swarf out of the controller. This
WILL blow the controller!
Test the controller without securing the top board in place
: as a bare minimum, loosely insert the two
screws at the end away from the 6 way connector.
Connect the batteries with the ignition on.
the ignition is also a reset switch if the controller trips for any
reason!
Make any soldered connection to the board.
Such modification invalidates the guarantee!
