4 — PROGRAMMABLE PARAMETERS
pg. 107
Return to TOC Curtis AC F4-A Motor Controller – August 2020
CONTROLLER SETUP/CURRENT LIMITS/POWER LIMITS — DRIVE LIMITING MAP MENU
PARAMETER ALLOWABLE RANGE DEFAULT DESCRIPTION
Nominal
PL_Drive_Nominal
0x3449 0x00
0 – 100 %
0 – 32767
100 % These parameters dene the percentage of the applied drive
current limit at the speeds dened by the nominal speed and
delta speed parameters. The resulting map allows the controller
to reduce the drive current as a function of speed.
Reducing the power requirements at certain speeds restricts
performance. This can be useful for reducing motor heating.
This is useful to keep consistent vehicle power with the changing
battery state-of-charge.
Plus Delta
PL_Drive_Nominal_Plus_Delta
0x344D 0x00
0 – 100 %
0 – 32767
100 %
Plus 2xDelta
PL_Drive_Nominal_
Plus_2xDelta
0x344A 0x00
0 – 100 %
0 – 32767
100 %
Plus 4xDelta
PL_Drive_Nominal_
Plus_4xDelta
0x344B 0x00
0 – 100 %
0 – 32767
100 %
Plus 8xDelta
PL_Drive_Nominal_
Plus_8xDelta
0x344C 0x00
0 – 100 %
0 – 32767
100 %
NOMINAL
NOMINAL SPEED
NOMINAL + Δ
NOMINAL + 2Δ
NOMINAL + 4Δ
NOMINAL + 8Δ
VEHICLE SPEED (rpm)
POWER LIMIT (percent current limit)
0
20
40
60
80
100
Figure 22
Drive Current Limiting Map
Figure 22 illustrates a typical Drive Current Limit mapping.