4qd 4QD-300-48 Gebruiksaanwijzing - Pagina 11

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The diagram shows the 6 way connector: open,

closed and dismantled, to show the two stage latches

which hold the cable grip in place. The cable grip is

the top section. The numbers correspond with the

'Features' diagram.

If you need to open a closed connector, this is quite

possible by gently lifting the ears of the cable grip

outwards to release then from the latch but take care

not to break them.

ABCDEF

With the connector open, push the wires into the

holes in the cable grip from the front which is as

illustrated. The back has circular holes, not a slot.

When all the wires are in place, squeeze the

connector closed in a vice, or with a pair of parallel

jawed pliers.

Connections for each connector are shown, then

follow more detailed information on the controls.

3 way connector

This is for the electromagnetic parking brake brake

which connects between battery +ve and the centre

pin. A third pin (0v or battery -) is supplied in case a

brake override switch is

required.

Ignition switch

Connects between +Batty and 'Ignition' on the 4 pin

connector. When the switch is open the control

circuitry is disabled, turning off the 4QD-200. When

closed the 4QD-200 is turned on. The current through

the switch is very small so a low current switch may

be used.

The controller will not work at all without this

connection.

The ignition is operated by a voltage so it can be

operated by applying a voltage from a source other

than the +Batty pin.

4QD series controller instructions.

ABCDEF

(+Batty)

+24/36/48

Brake

12 Wiring - various

6 way connector

Note that this connector is underneath the top board

so refer to the 'features' diagram to identify the pin

letters. You will have to release the top board (four

'Board Release' screws on the features diagram) to

insert access the 6 way connector.

This connects the speed pot and the direction switch.

Direction change is by applying a voltage to pin C:

no voltage (pin disconnected) will give forward.

To reverse, connect this pin to a voltage, e.g. pin B or

battery +ve.

There is also an inhibit pin: connecting this to 0v

will inhibit the action of the speed pot

0v (ACW)

{

Speed

Centre

Pot

Top(+10.8v)

Reverse

+11.5v

4 way connector

This is principally for the 'ignition' switch but two

spare pins are supplied, one connected to the

'ignition line and the

second to 0v (battery –)

for a battery condition

meter or a reverse polarity

protection relay.

Ignition light

The diagram shows how an LED may

be fitted to act as an Ignition light. This

can be a useful diagnostic aid if the

controller shuts down because of

overheating, dud wiring or some other

fault. However such problems are

relatively rare so the LED is more

cosmetic.

Note that pin 2 is also +12v to the

direction switch and that pin 6 also

connects to the speed pot.

Inhibit

(+Batty)

+24/36/48

Ignition

Meter +

Meter -

resistor

Page 11