Curtis 1214-/15-/19-8 Manual
8
WIRING:
Throttle
Wiring for various throttles is described below. These include 5k
Ω
–0 and 0–5k
Ω
throttles, 0–5V and 0–10V throttles, 3-wire potentiometer throttles, and elec-
tronic throttles. If the throttle you are planning to use is not covered, contact the
Curtis office nearest you.
5k
Ω
–0 Throttle (“Type 1”)
The 5k
Ω
–0 throttle (called a “Type 1” throttle in the programming menu of the
handheld programmer) is a 2-wire resistive throttle that connects between the
2-Wire Pot pin (Pin 16) and the Pot Low pin (Pin 14), as shown in Figure 4. It
doesn’t matter which wire goes on which pin. For Type 1 throttles, zero speed
corresponds to 5k
Ω
and full speed corresponds to 0
Ω
.
2 — INSTALLATION & WIRING
Fig. 4
Wiring for 5k
Ω
–0
throttle (“Type 1”).
In addition to accommodating the basic 5k
Ω
–0 throttle, the Type 1 throttle
input can be used to implement a wigwag-style throttle. Using a 20k
Ω
potenti-
ometer wired as shown in Figure 5, the pot wiper can be set such that the
controller has 5k
Ω
between Pins 14 and 16 when the throttle is in the neutral
position. The throttle mechanism can then be designed such that rotating it
either forward or back decreases the resistance between Pins 14 and 16, which
increases the controller output. The throttle mechanism must provide signals to
Fig. 5
Wiring for 20k
Ω
potentiometer used as a
wigwag-style throttle
(“Type 1”).
14
13
15
16
17
18
19
20
21
22
23
24
12
11
10
9
8
7
6
5
4
3
2
1
Pin 16
Pin 14
2-Wire Pot
Pot Low
PIN KEY
20 k
Ω
FASTER
FASTER
14
13
15
16
17
18
19
20
21
22
23
24
12
11
10
9
8
7
6
5
4
3
2
1
Pin 16
Pin 14
2-Wire Pot
Pot Low
PIN KEY
5k
Ω
–0
FASTER
