Curtis 1220 User Manual

22
Curtis 1220 Manual, Rev. C
MOTOR CONTROL TUNING: SENSITIVITY MAP
ALLOWABLE
PARAMETER RANGE DESCRIPTION
LS Sensitivity 0 – 100 % Denes the steering sensitivity at very low traction speeds (i.e., near
zero traction rpm), as a percentage of the programmed Position Kp.
Sensitivity is typically reduced at low speeds to prevent excessive
hunting for the commanded position.
HS Sensitivity
0 – 100 % Denes the steering sensitivity at high traction speeds, as a percentage
of the programmed Position Kp.
Sensitivity is typically reduced at high speeds to make the vehicle
easier to drive.
Low Speed
0 – 100 % Denes the percentage of Traction Motor Max Speed at which 100%
sensitivity will start to be applied as the vehicle accelerates.
Mid Speed 0 – 100 % Denes the percentage of Traction Motor Max Speed at which 100%
sensitivity will start to decrease as the vehicle decelerates.
High Speed 0 – 100 % Denes the percentage of Traction Motor Max Speed at and above
which the programmed HS Sensitivity value will be applied.
3 — PROGRAMMABLE PARAMETERS: Motor Control Tuning Parameters
Fig. 8 Steering sensitivity map.
STEERING SENSITIVITY (% of Position Kp)
Low
Speed
100%
C
D
B
A
HS Sensitivity
LS Sensitivity
0
Mid
Speed
TRACTION SPEED (RPM)
High
Speed
X (RPM) Y (%)
A 0 LS Sensitivity
B Low Speed 100%
C Mid Speed 100%
D High Speed HS Sensitivity
The map adjusts the proportional gain (Position Kp) as
a function of traction speed.
The steering sensitivity map is shaped by the settings
of the five parameters in the Steering Sensitivity menu,
with the two sensitivity parameters along the Y axis
and the three speed parameters along the X axis.
Table 2 Functions Menu
FUNCTION RANGE DESCRIPTION
Restore Parameters Yes / No When set to Yes, will reset all programmable parameters
to their factory default settings.
Clear Hourmeter Yes / No When set to Yes, will set the hourmeter to zero hours.

Curtis 1220 Specifications

General

Brand	Curtis
Model	1220
Category	Controller
Language	English