Curtis 1297 User Manual

Curtis PMC 1297 Manual
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3 A — PROGRAMMABLE TRACTION PARAMETERS: Acceleration
Acceleration Parameters
A. TRACTION PARAMETERS
The various traction parameters adjust the vehicle’s operating characteristics—its
acceleration, braking, speed, and responsiveness. These parameters allow the vehicle
to be tailored to a specific application, or to a specific operator’s preferences.
The MultiMode™ feature of the 1297 controller allows operation in two
distinct modes. These two modes can be programmed to provide two different sets of
operating characteristics, which can be useful for different conditions. For example,
Mode 1 could be set up for slow precise indoor maneuvering and Mode 2 for faster,
long distance, outdoor travel. There are six parameters that can be individually set
in the two modes:
Drive Current Limit, M1–M2
Acceleration Rate, M1–M2
Brake Current Limit, M1–M2
Brake Rate, M1–M2
Deceleration Rate, M1–M2
Maximum Speed, M1–M2.
It should be noted that the acceleration and braking parameters determine
controller output and not the actual accelerating/braking time (or distance); the
time (or distance) required to achieve the requested speed is influenced by a variety
of factors—including initial speed, vehicle load, and terrain.
M1–M2, DRIVE C/L
The drive current limit parameter allows adjustment of the maximum current
the controller will supply to the traction motor during drive operation. Setting
this parameter at a low value reduces the maximum torque applied to the drive
system by the motor, which may be desirable in Mode 1 if it is configured as a
slow speed mode. The drive current limit is adjustable from 50 amps to the
controller’s full rated drive current. (The full rated drive current depends on the
controller model; see specifications in Table E-1.)
The drive current limit is tuned as part of the vehicle performance
adjustment process (Section 5).
M1–M2, ACCEL RATE
The acceleration rate defines the time it takes the controller to accelerate from
0% output to 100% output when full throttle is requested. A larger value
represents a longer acceleration time and a gentler start. Fast starts can be
achieved by reducing the acceleration time, i.e., by adjusting the accel rate to a
smaller value. The accel rate is adjustable from 0.1 to 3.0 seconds.
The accel rate is tuned as part of the vehicle performance adjustment
process (Section 5).

Curtis 1297 Specifications

General

Brand	Curtis
Model	1297
Category	Controller
Language	English