Motor Parameters; Main Current Limit; Motor Resistance; Acceleration Parameters - Curtis MultiMode 1228 Manual

Motor Parameters

Acceleration Parameters

Curtis 1228 Manual,
Rev. F
3 — PROGRAMMABLE PARAMETERS:
MAIN C/L
The main current limit parameter allows adjustment of the maximum cur-
rent the controller will supply to the motor during both drive and regenerative
braking operation. This parameter can be limited to protect the motor from
excessive (potentially damaging) currents or to reduce the maximum torque
applied to the drive system by the motor. It is adjustable up to 100% of the
controller's full rated current. (The full rated current depends on the controller
model; see 15-second ratings in Table E-1.)
MOTOR R
The motor resistance parameter is crucial to proper vehicle operation. The
control system performance depends on this value being set correctly. The mo-
tor resistance parameter is adjustable between 0 and 625 milliohms. It must
be set to the actual cold motor resistance. For instructions, see initial setup
procedure 4, on page 33.
ACCEL MAX SPD
The maximum-speed forward acceleration rate defines the time it takes the
controller to accelerate from zero to 100% output during forward travel at full
throttle with the speed limit pot in its maximum speed position. Larger values
represent a longer acceleration time and gentler starts, while smaller values
represent faster acceleration. The maximum-speed forward acceleration rate is
adjustable from 0.2 to 4.0 seconds. Acceleration rates under 0.5 second provide
abrupt acceleration and should only be used under special circumstances.
The maximum-speed and minimum-speed forward acceleration rates
are scaled linearly to provide appropriate response throughout the speed limit
pot's range.
ACCEL MIN SPD
The minimum-speed forward acceleration rate defines the time it takes the
controller to accelerate from zero to 100% output during forward travel at full
throttle with the speed limit pot in its minimum speed position. Larger values
represent a longer acceleration time and gentler starts, while smaller values
represent faster acceleration. The minimum-speed forward acceleration rate is
adjustable from 0.2 to 8.0 seconds. Acceleration rates under 0.5 second provide
abrupt acceleration and should only be used under special circumstances.
Motor and Acceleration Parameters
17