Curtis 1244-64 series User Manual

Curtis 1244 Manual, Rev. E
15
2 — INSTALLATION & WIRING: Throttle
0–5kΩ Throttle (“Type 3”)
e 0–5kΩ throttle (“Type 3” in the programming menu) is a 2-wire resistive
throttle that connects between the 2-Wire Pot and Pot Low pins (Pins 16 and 14)
as shown in Figure 10. Zero speed corresponds to 0Ω measured between the two
pins and full speed corresponds to 5 kΩ. is throttle type is not appropriate
for use in wigwag-style applications.
Fig. 10 Wiring
for 0–5k
Ω throttle
(“Type 3”).
If the total resistance between Pins 14 and 16 is greater than 7.5 kΩ, the
controller’s 4.4 V upper fault limit will be exceeded and the controller output
will be disabled. is provides broken wire protection, and also serves as an
indication that the potentiometer’s nominal value has increased and the pot
needs to be replaced.
0–5V and 3-Wire Potentiometer Wigwag-Style Throttles (“Type 4”)
With these throttles (“Type 4” in the programming menu) the throttle can be
used in true wigwag style. Any potentiometer value between 1 kΩ and 10 kΩ
is supported. If a 5kΩ potentiometer is used, the neutral point will be with the
wiper at 2.5 kΩ (measured between the Pot Wiper and Pot Low pins [Pins 15
and 14]). e controller will provide increasing speed in the forward direction
as the wiper is moved toward Pot High, with maximum forward speed reached
at 4.5 kΩ. e controller will provide increasing speed in the reverse direction
as the wiper is moved toward Pot Low, with maximum reverse speed reached
at 0.5 kΩ.
A 0–5V voltage source can also be used as the wiper input (see Figure6).
However, the minimum and maximum wiper voltage must not exceed the 0.5V
and 4.5V fault limits.
With a Type 4 throttle, no direction signals to the controllers’ forward and
reverse inputs are required. Direction is determined by the wiper input value.
e throttle interface to the controller is similar to that for Type 2 throttles.
14 1315161718192021222324
12 11 10 9 8 7 6 5 4 3 2 1
0–5kΩ
Pin 16
Pin 14
2-Wire Pot
Pot Low
PIN KEY
FASTER

Curtis 1244-64 series Specifications

General

Brand	Curtis
Model	1244-64 series
Category	Controller
Language	English