Curtis Instruments AC F4-A User Manual

6 — COMMISSIONING
pg. 137
Return to TOC Curtis AC F4-A Motor Controller – August 2020
Hall-eect voltage throttles
e Curtis FP Series of electronic throttles oers multiple pedal angles and mounting congurations
(oor, suspended, ush) with 0–5 Volt operation and an Idle Validation Switch (IVS). e IVS will
connect to an assigned analog input (e.g., pin 10). See Figure 27.
e Curtis ET-XXX (e.g., ET-126) electronic throttle is typically a drive throttle (as illustrated in
Figure 28). When used in Class III tiller handles or twist-throttle grips, it oers symmetrical throttle
response in both the forward and reverse directions of the twist-grip/ippers (i.e., CW and CCW
rotation). Based upon rotation it switches the forward or reverse switches to KSI and thus provides the
directional switches within the throttle assembly. It is a wigwag type throttle, which when released,
returns the throttle to neutral for convenience and safety. Other, similar third party wigwag throttles
follow the same setup process.
e ET-XXX voltage throttles contains no built-in fault detection, or a throttle validation signal. It
is the responsibility of the OEM to provide appropriate throttle fault detection.
THROTTLE SENSOR OUTPUT (0.5 –4.5V)
IVS OUTPUT (0.75V [5-0V])
HALL-EFFECT THROTTLE S E NSO R
I/O Ground (pin 7)
Voltage (analog 1) input (pin 16)
(1) Sensor +5V supply
(2) Ground
(3) IVS Signal (voltage)
(4) Throttle Signal (voltage)
(5) IVS Ground
(6) IVS +5V supply
>>
>>
>>
>>
>>
>>
+5V (pin 26)
Voltage (analog) input (pin TBD)
IDLE-VALIDATION SWITCH
Figure 27
Curtis FP-SCV-0022
Hall-eect rottle
Voltage rottle setup
Wire the voltage throttle as illustrated in the options shown in Figures 25 and 26. With the throttle
connected and powered, set the Low and High parameters based upon the observed input Voltage
(analog_input_volts_1) while moving the throttle throughout its physical range (stroke). ese
parameters set the range for 0% (Low) and 100% (High) throttle. Inputs below and above these set
points will declare a fault. e Percent (Analog_Input_Percent_1) monitor variable is repeated as
rottle Input (rottle_Pot_Percent) in the Application Setup » rottle menu. Use either of these
variables as feedback when adjusting the potentiometer throttle’s Forward & Reverse Min/Max
Input parameters (described below).
For voltage throttles with an idle validation switch or additional voltage outputs, program these
signals as per their type using the controller’s available switch or analog inputs. Reference Figure 6
and Tables 5 and 6 for these available switch and analog inputs. Be sure to include these additional
signals in a VCL program as the means to integrate such throttle validation signals into the
controller application.
Quick Links:
Table 5 (Switch Inputs) p.13
Table 6 (Analog Inputs) p.15

Curtis Instruments AC F4-A Specifications

General

Brand	Curtis Instruments
Model	AC F4-A
Category	Controller
Language	English