Kohler Curtis AC F2-T User Manual

6 — COMMISSIONING
pg. 169
Return to TOC Curtis AC F2-A, F4-A, F6-A Motor Controllers – FOS 4.5 – April 2022
9.4 e direction source is set using the Direction Source parameter. See Programmer » Application
Setup » rottle » Direction Source. Here, the source will be the Fwd/Rev selection if the
switches are selected as noted in step 9.1. Alternatively, if voltage determines the direction,
select Wig/Wag (wigwag throttle).
9.5 If the throttle will be via VCL, enable VCL rottle. Programmer » Application Setup » rottle
» VCL rottle Enable.
e VCL rottle provides a dierent way of sending the throttle command to the controller.
is throttle type uses VCL to dene the throttle signal that will be “input” into the throttle
signal chain as VCL_rottle.
See Programmer » Controller Setup » IO Assignments » Controls » rottle Source = 0
e VCL program/coding will determine the source of the throttle signal, making this a very
exible throttle input method. VCL can be written to use any of the controller’s analog inputs
or CAN communication messages (e.g., from a vehicle manager controller) as the source of the
throttle signal.
Setting the throttle to the parameter VCL rottle Enable (On) re-assigns (frees) the throttle
pot input for uses other than throttle input.
For questions regarding this throttle type, contact the Curtis distributor or support engineer.
3-wire potentiometer throttle
When a 3-wire potentiometer is used, the controller provides full fault protection in accordance
with EN 1175-1 requirements. In its voltage divider mode, the controller provides the voltage source
and the potentiometer return/ground. e Pot Supply circuit provides a current limited to 5 volts to
the 3-wire potentiometer, and pin 18 or 7, I/O Ground, provides the return path. is is the 3-wire
potentiometer throttle shown in the basic wiring diagram (Figure 13, Chapter 2) and Figure 36, below.
If any of the three connections open, it triggers a rottle Input fault (ash code 4-2).
e Curtis throttle FP-10 model is a 0–5 kΩ 3-wire potentiometer throttle. It oers, besides the
controller’s 3-wire fault detection, two throttle spring (position) detection switches, two neutral and
two full throttle position switches. is throttle is congurable as a 0–5k Ω or 5k–0 Ω potentiometer.
1kΩ –10kΩ
FASTER
I/O Ground (Pin 7)
Pot 6 Supply (Pin 15)
Pot 1 Wiper input (Pin 16)
3-wire Potentiometer Source
Figure 36
Wiring for 3-Wire
Potentiometer throttles
2-wire potentiometer throttle
For 2-wire resistive potentiometers, shown in Figure 37, full throttle request corresponds
to 0 Ω measured between the pot wiper and the I/O Ground. A 2-wire throttle requires the
Forward & Reverse Min Input parameters to be set towards a higher percentage (e.g., 95%) and
the Forward & Reverse Max Input parameters set to a lower percentage (e.g., 5%). Note that this is

Kohler Curtis AC F2-T Specifications

General

Brand	Kohler
Model	Curtis AC F2-T
Category	Controller
Language	English