Curtis 1205 Guide de dépannage télécharger pdf (Page 20)

Curtis 1204/1205 Manual, Rev. C

Throttle Pot Wiring

Standard potbox wiring

If the throttle input to the controller is from a Curtis potbox or footpedal,

the wiring is simple: just connect the two wires of the potbox/footpedal

cable to the two push-on terminals of the controller, as shown in Figure 6.

It doesn’t matter which wire goes on which terminal. The wires can be

extended as required.

Any suitable potentiometer of 5 k

Ω nominal resistance will work

with the standard throttle input of the 1204/1205 controllers. As shown

in Figure 10, connection should be made to the wiper and to one outer

terminal of the pot so that resistance increases as the accelerator is applied.

Fig. 11 Bi-directional

twist-grip throttle with

10 k

center-tapped,

4-terminal pot.

of which direction the twist grip is

turned. Alternately, a 4-terminal,

center-tapped 10 kΩ pot can be

coupled directly to the twist grip,

as shown in Figure 11.

A third method of accom-

modating bi-directional twist grip

throttles uses a standard poten-

tiometer and a controller with a

Pots for twist-grip throttles

Twist grip throttles either twist in only one direction (and are used only

for acceleration), or they twist both ways (and are also used for reversing,

by means of microswitches that select a direction contactor). For twist

grips that twist in only one direction, the controller throttle input can

be from a 5 kΩ pot as shown above in Figure 10.

For twist grips that twist both ways, a pot capable of going from

zero in neutral to 5 kΩ in each direction can be used. A mechanism can

be designed to make a standard pot turn in the same direction regardless

Fig. 10 Standard

throttle pot, 0–5k

3 — WIRING

THROTTLE

INPUT

5 kΩ

FASTER

THROTTLE

INPUT

THROTTLE

INPUT

FASTER

0–5kΩ POT

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 51 52

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Curtis 1205 Guide de dépannage Page 20

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