Wesley BC-6200-8SA - Manual (Page 29)

29 Owner’s Manual and Service Guide – BCG Series
COMPONENTS - ELECTRICAL
Controller Features Include:

Interlock braking with load sensor to meet required
braking distance without unnecessary harsh braking
when carrying light loads

Maintenance monitor responds to preset vehicle
operating hours and drive hours as programmed by the
OEM

Two hour meters —total KSI-on hours and traction
hours —and the associated maintenance timers are built
into the controller

BDI calculations performed within controller

Estimates motor temperature based on field resistance
and cuts back maximum speed if the motor is overheated

Diagnostic checks for field open and field shorted faults

Active pre-charge of controller capacitor bank extends life
of main contactor

Compatibility with Curtis 1307/1311 hand held
programmers for quick and easy testing, diagnostics, and
parameter adjustment

Complete diagnostics through the handheld programmer,
built-in Status LED, and 840 Spyglass display

Two fault outputs provide diagnostics to remotely
mounted displays

Regenerative braking allows shorter stopping distances,
increases battery charge, and reduces motor heating

Automatic braking when throttle is reduced provides a
compression braking feel and enhances safety

Brake/Drive Interlock meets ISO stopping distance rules

Ramp restraint feature provides automatic electronic
braking that restricts vehicle movement while in neutral

Meets EEC fault detect requirements

Linear cutback of motor drive current during over-
temperature or under-voltage

Linear cutback of regenerative braking current during
overvoltage

High pedal disable (HPD) and static return to off (SRO)
interlocks prevent vehicle runaway at startup

Internal and external watchdog circuits ensure proper
software operation

Fully protected inputs and short-circuit protected output
drivers
This manual covers the most commonly required
information as it pertains to the Pack Mule vehicles. For
more detailed instructions, contact Wesley International
for a copy of the complete manual for the Curtis motor
controller, or download a copy from
www.packmule.com .
Your Pack Mule vehicle should be equipped with the
following Curtis motor controller model:
AC Motor: Curtis 1236
Programmable Parameters: All Pack Mule vehicles leave
the factory with standard default parameters programmed in
the controller, unless specific parameter settings are
requested at the time of order. These parameters can be
reprogrammed in the field using a Curtis handheld
programmer, available from Wesley. Generally, there are
five parameters which owners may want to modify to suit
their specific safety or user preferences as follows:
a) Acceleration Rate
b) Braking Rate
c) Deceleration Rate
d) Maximum Forward Speed
e) Maximum Reverse Speed
Acceleration Rate: The acceleration rate defines the time it
takes the controller to accelerate from 0% drive output to
100% drive output. A larger value represents a longer
acceleration time and a gentler start. Fast starts can be
achieved by adjusting the accel rate to a smaller value. The
acceleration rate is adjustable from 0.1 to 3.0 seconds. The
default setting for this is 1.6.
Braking Rate: The braking rate defines the time it takes the
controller to increase from 0% braking output to 100%
braking output (as defined by the corresponding mode-
specific brake current limit) when a new direction is selected.
A larger value represents a longer time and consequently
gentler braking. Faster braking is achieved by adjusting the
braking rate to a smaller value. The braking rate is
adjustable from 0.1 second to 3.0 seconds. The default
setting for this is 0.1
Deceleration Rate: The deceleration rate defines the time it
takes the controller to reduce its output to the new throttle
request when the throttle is reduced or released. A lower
value represents a faster deceleration and thus a shorter
stopping distance. The decel rate defines the vehicle’s
braking characteristic for any reduction in throttle, including
to neutral, that does not include a request for the opposite
direction. The decel rate is adjustable from 0.1 to 10.0
seconds. The default setting for this is 2.5.
Maximum Forward Speed: The maximum forward speed
parameter defines the maximum controller voltage output at
full throttle, in the forward direction. The maximum forward
speed parameter is adjustable from the programmed creep
speed up to 100%. The default setting for this is 70, which
equates to about 7 mph (12.9 kph).
Maximum Reverse Speed: The maximum reverse speed
parameter defines the maximum controller voltage output at
full throttle, in the reverse direction. The maximum reverse
speed parameter is adjustable from 0% to 100%. The default
setting for this is 35 or about 1/2 the forward speed.
Controller Maintenance: There are no user serviceable
parts in the Curtis controller. No attempt should be made to
open, repair, or otherwise modify the controller. Doing so
may damage the controller and will void the warranty. It is
recommended that the controller be kept clean and dry and
that its fault history file be checked and cleared periodically.
Periodically cleaning the controller exterior will help protect it
against corrosion and possible electrical control problems
created by dirt, grime, and chemicals that are part of the
operating environment and that normally exist in battery
powered systems.