Wesley BCT-6200-6SA - Manual (Page 46)

Curtis 1243
GEN
2 Manual, Rev. B 38
3 — PROGRAMMABLE PARAMETERS: Field Parameters
POT LOW FAULT
The pot low fault parameter allows the controller’s pot low fault detection to
be disabled. This is useful when single-wire, ground (B-) referenced voltage
throttle inputs are used. Setting the pot low fault parameter to Off disables the
fault detection at the pot low input (Pin 7). It is recommended that the pot
low fault parameter be set to On in any application where a resistive throttle
is used. This will provide the most comprehensive throttle fault detection and
provide the safest possible vehicle operation.
Note: The programmer’s display name for the pot low fault is “Throttle
Wiper Lo.”
FIELD MIN
The minimum field current limit parameter defines the minimum allowed
field current, thus determining the vehicle’s maximum speed. Field Min can be
adjusted from 1.6 amps up to the lowest programmed M1–M4 Restraint value.
The Field Min parameter is tuned as part of the vehicle performance
adjustment process (Section 5).
FIELD MAX
The maximum field current limit parameter defines the maximum allowed
field current. The maximum field current limit setting determines the vehicle’s
maximum torque and the maximum power that the field winding will have to
dissipate. Field Max can be adjusted from the programmed Field Min value up
to the controller’s full rated field current. (The full rated field current depends
on the controller model; see specifications in Table D-1).
The Field Max parameter is tuned as part of the vehicle performance
adjustment process (Section 5).
FLD MAP START
The field map start parameter defines the armature current at which the field
map starts to increase from the programmed Field Min value. This parameter
is adjustable from 25 amps up to the full rated armature current value. (The
full rated armature current depends on the controller model; see specifications
in Table D-1).
The field map start parameter is used to equalize the vehicle’s maximum
speed when loaded and unloaded. Increasing the field map start parameter
value will increase the maximum load weight that the vehicle can carry while
maintaining maximum speed on a level surface.
The field map start parameter is tuned as part of the vehicle performance
adjustment process (Section 5).
Field Parameters