Curtis Instruments AC F4-A User Manual

4 — PROGRAMMABLE PARAMETERS
Curtis AC F4-A Motor Controller – August 2020 Return to TOC
pg. 40
CONTROL MODE SELECT
PARAMETER ALLOWABLE RANGE DEFAULT DESCRIPTION
Control Mode Select Enumerated 0 This parameter determines which motor control method will be in
effect when controlling the motor:
0 = Speed Mode Express
1 = Speed Mode
Note: Disregard the Torque and Steering modes in CIT help text:
2 = Torque Mode
3 = Torque FrontEnd Mode
4 = Steering Mode
Control_Mode_Select 0 – 1
0x3080 0x00
SPEED MODE EXPRESS — SPEED CONTROLLER MENU
PARAMETER ALLOWABLE RANGE DEFAULT DESCRIPTION
Max Speed
Max_Speed_SpdMx
0x3866 0x00
100 – 8000
100 – 8000
4000 rpm Denes the maximum requested motor rpm at full throttle. A partially
applied throttle is scaled proportionately; e.g. 40% applied throttle
corresponds to a request for 40% of the set Max Speed Value.
Note: The maximum motor rpm is subject to the lower of the three
rpm constraints
Kp
Kp_SpdMx
0x3865 0x00
0 – 100 %
0 – 8192
30 % Determines how aggressively the speed controller attempts to
match the speed of the motor to the commanded speed. Larger
values provide tighter control.
Oscillations may occur when setting the gain too high, as the
controller tries to control the speed.
If it is set too low the motor may behave sluggishly and be
difcult to control.
Ki
Ki_SpdMx
0x3864 0x00
5 – 100 %
50 – 1000
30 % The integral term (Ki) forces zero steady state error so the motor
will run at exactly the commanded speed. Larger values provide
tighter control.
Oscillations may occur when setting the gain too high, as the
controller tries to control the speed.
If it is set too low the motor may take a long time to approach the
exact commanded speed.
SPEED MODE EXPRESS — RESPONSE MENU
PARAMETER ALLOWABLE RANGE DEFAULT DESCRIPTION
Accel Rate
Accel_Rate_SpdMx
0x3861 0x00
0.1 – 30.0 s
100 – 30000
2.5 sec Sets the rate (in seconds/Typical Max Speed) at which the speed
command increases to when throttle is applied. Larger values
represent slower response
Decel Rate
Decel_Rate_SpdMx
0x3863 0x00
0.1 – 30.0 s
100 – 30000
10.0 sec Sets the rate (in seconds/Typical Max Speed) that is used to slow
down the vehicle when the throttle is reduced. Larger values
represent slower response.
Brake Rate
Brake_Rate_SpdMx
0x3862 0x00
0.1 – 30.0 s
100 – 30000
1.0 sec Sets the rate (in seconds/Typical Max Speed) at which the vehicle
slows down when brake is applied or when throttle is applied in
the opposite direction. Larger values represent slower response.
Quick Link:
RPM Constraints p.25

Curtis Instruments AC F4-A Specifications

General

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