Curtis 1239E - Page 40

4 — PROGRAMMABLE PARAMETERS
Curtis 1239E-1269E Manual, os 37.0 RevA – May 2021
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pg. 36
1 - SPEED MODE — SPEED CONTROLLER MENU
PARAMETER ALLOWABLE RANGE DESCRIPTION
Max Speed
Max_Speed_SpdM
0x3011 0x00
100 – 10000 rpm
100 – 10000
Denes the maximum requested motor rpm at full throttle. Partially-applied
throttle is scaled proportionately; e.g., 40% applied throttle corresponds to a
request for 40% of the set Max Speed Value.
If Max_Speed_SpdM is set <10 rpm (through VCL or CAN), the throttle request
is zeroed.
NOTE: The maximum motor rpm is subject to the constraints on page 26.
Kp
Kp_SpdM
0x3012 0x00
0 – 100%
0 – 8192
Determines how aggressively the speed controller attempts to match
the speed of the motor to the commanded speed. Larger values provide
tighter control.
If the gain is set too high, the application may experience oscillations as the
controller tries to control speed. If it is set too low, the motor may behave
sluggishly and be difcult to control.
Ki LS
Ki_SpdM
0x3015 0x00
5 – 100%
50 – 1000
The Ki LS parameter sets the Ki for low vehicle speeds. The integral term (Ki)
forces zero steady state error, so the motor will run at exactly the commanded
speed. Larger values provide tighter control.
If the gain is set too high, the application may experience oscillations as the
controller tries to control speed. If it is set too low, the motor may take a long
time to approach the exact commanded speed.
Ki HS
Ki_HS_SpdM
0x301D 0x00
5 – 100%
50 – 1000
The Ki HS parameter sets the integral term (Ki) for high vehicle speeds; see
description of Ki LS.
Quick Link:
Motor Speed
Constraints p.26