Curtis 1204 User Manual

14
Curtis PMC 1204/1205 Manual
Throttle Pot Wiring
Standard potbox wiring
If the throttle input to the controller is from a Curtis PMC 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 kΩ 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 Ω center-tapped,
4-terminal pot.
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 potenti-
ometer 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 of
Fig. 10 Standard
throttle pot, 0–5k
Ω .
WIRING
TO
THROTTLE
INPUT
5 kΩ
5 kΩ
FASTER
FASTER
FASTER
TO
THROTTLE
INPUT
TO
THROTTLE
INPUT
FASTER
0–5kΩ POT
0–5kΩ POT

Curtis 1204 Specifications

General

Brand	Curtis
Model	1204
Category	Controller
Language	English