Curtis Instruments AC F4-A User Manual

4 — PROGRAMMABLE PARAMETERS
Curtis AC F4-A Motor Controller – August 2020 Return to TOC
pg. 96
CONTROLLER SETUP — INPUTS MENU, cont’d
PARAMETER ALLOWABLE RANGE DEFAULT DESCRIPTION
Nominal Resistance
Pot_18_R
0x3357 0x00
800 – 15000 Ω
800 – 15000
5000 Ω Set the nominal resistance of the potentiometer.
Throttle or Brake potentiometers are typically 1k, 5k, or 10k Ohms.
Note: If this parameter value is outside the actual resistance, it
will trigger a Throttle Input fault (Flash code 0x42) if Throttle_
Source = 18.
Note: If this parameter value is outside the actual resistance, it will
trigger a Brake Input fault (Flash code 0x44) if Brake_Source = 18.
Analog 18 menu
Parameters for Voltage with Supply selection
Analog 18 Type
Analog_Input_18_Type
0x330F 0x00
Voltage with Supply
(selection menu)
– The Analog 18 Type “Voltage with Supply” selection operates the
Analog 18 input (pin 17) as a raw voltage input with an internal
pull-up supply voltage.
The output voltage is 10V (approx.) with a 3 mA current limit (to
the external load/device). Reference Table 7.
Use this selection for operating resistive devices such as
thermistors and photocells and reading the voltage in VCL using
the Monitor variable analog_input_volts_18 (0x3B60), then
processing the value in the VCL program.
Voltage
Analog_Input_Volts_18
0x3B60 0x00
–327.68 – 327.67
–32768 – 32767
Read Only
V
The analog voltage at the input pin 17.
Percent
Analog_Input_Percent_18
0x3B62 0x00
0.0 – 100.0 %
0 – 1000
Read Only
%
The percentage of the voltage at pin 17 based upon the High and
Low settings, i.e., the percent of:
((analog_input_volts_18) – (analog_input_18_low)) /
((analog_input_18_high) – (analog_input_18_low))
Low
Analog_Input_18_Low
0x3309 0x00
0.0 – 11.0 V
0 – 1100
0.0 V The minimum input voltage before a fault is declared. When the
Analog 18 Type selection is Voltage with Supply, this set point
represents the 0% point for the normalized input.
Faults:
When the voltage falls below this parameter, it will trigger the
Analog_18_OUT_OF_RANGE fault (flash code 0xBD, Can Index
0x262B).
If assigning the Throttle to Analog 18, the resulting fault will
become the Throttle Input fault (flash code 0x42, CAN Index
0x2210) if Throttle_Source = 18.
If assigning the Brake to Analog 18, the resulting fault will become
the Brake Input fault (Flash code 0x44) if Brake_Source = 18.
High
Analog_Input_18_High
0x330A 0x00
0.0 – 11.0 V
0 – 110
5.1 V The maximum input voltage before a fault is declared. When the
Analog 18 Type selection is Voltage with Supply, this set point
represents the 100% point for the normalized input.
Faults:
When the voltage rises above this parameter, it will trigger the
Analog_18_OUT_OF_RANGE fault (flash code 0xBD, Can Index
0x262B).
If assigning the Throttle to Analog 18, the resulting fault will
become the Throttle Input fault (flash code 0x42, CAN Index
0x2210) if Throttle_Source = 18.
If assigning the Brake to Analog 18, the resulting fault will become
the Brake Input fault (Flash code 0x44) if Brake_Source = 18.
Quick Links:
Voltage rottle p.136
3-Wire rottle p.135
2-Wire rottle p.135
Fig. 6 p.10

Curtis Instruments AC F4-A Specifications

General

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