Return to TOC Curtis 1239E-1269E Manual, os 37.0 RevA – May 2021
4 — PROGRAMMABLE PARAMETERS
pg. 47
DRIVE LIMITING MAP MENU
PARAMETER ALLOWABLE RANGE DESCRIPTION
Nominal
PL_Drive_Nominal
0x3060 0x00
0 – 100%
0 – 32767
These parameters dene the percentage of drive current limit that
will be applied 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. It can
also be used to keep consistent vehicle power with changing battery
state-of-charge.
Figure 15 illustrates these parameters’ typical usage.
Plus Delta
PL_Drive_Nominal_Plus_Delta
0x3061 0x00
0 – 100%
0 – 32767
Plus 2xDelta
PL_Drive_Nominal_Plus_2xDelta
0x3062 0x00
0 – 100%
0 – 32767
Plus 4xDelta
PL_Drive_Nominal_Plus_4xDelta
0x3063 0x00
0 – 100%
0 – 32767
Plus 8xDelta
PL_Drive_Nominal_Plus_8xDelta
0x3064 0x00
0 – 100%
0 – 32767
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 15
Drive current limiting map
(typical example).