Motor Characterization Tests Menu; Field Weakening Control Menu; Motor Type Parameter - Curtis 1298 User Manual

3 — PROGRAMMABLE PARAMETERS:
ALLOWABLE
PARAMETER
Contact your Curtis customer support engineer if you will be running the AC motor
characterization tests yourself. See Initial Setup, step bk, page 78.
ALLOWABLE
PARAMETER
FW Base Speed 200–6000 rpm
FW_Base_Speed
Field Weakening 0–100 %
Field_Weakening
Weakening Rate
0–100 %
Field_Weakening_Rate
ALLOWABLE
PARAMETER
Motor Type
Motor_Type
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Field Weakening Control and Motor Type Parameters

MOTOR CHARACTERIZATION TESTS MENU

RANGE

FIELD WEAKENING CONTROL MENU

RANGE
This parameter needs to be reset each time the Motor Type is changed
200–6000 or the low speed current limit is changed. For example, if you lower
Drive_Current_Limit (page 36) or PL_Drive_Nominal (page 37), you
should consider adjusting this parameter.
To determine the correct value, perform this tuning test. The test
should be run with batteries that have a reasonable charge. In either
Torque Control Mode or Speed Control Mode, set your accel rates to be
fast—so that you'll be accelerating at full current during the test. Next,
set the Base Speed parameter to the maximum value (so that it will not
interfere with the test result). From a stop, apply full throttle and accelerate
to high speed and then stop. After stopping, note the value displayed in
Monitor
value for the Base Speed setting.
The test restarts each time the vehicle comes to a stop and the
throttle is released, so be sure to note the value before driving away.
Determines the amount of high speed power the controller will allow,
0–1024 while still maintaining maximum effficiency at the allowed power. Reducing
this parameter effectively reduces controller current at high speeds, which
can reduce energy consumption and motor heating, but at the expense of
reduced available torque from the motor.
Determines the control loop gains for field weakening. Setting the rate too
0–500 low may create surging in the vehicle as it accelerates at mid to high
speeds. Setting the rate too high may create high frequency oscillations
(usually audible) when the vehicle accelerates at mid to high speeds.

MOTOR TYPE PARAMETER

RANGE
0–200 This parameter references a predefined table of motor parameters for many
0–200 AC motors. Consult your local Curtis customer support engineer for
information on how to set this parameter based on your application and
motor.
DESCRIPTION
DESCRIPTION
» » »
Controller Motor Tuning
DESCRIPTION
Base Speed Captured, and enter this
Curtis 1298 Manual,
11
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