ADJUSTABLE FEATURES
SX TRANSISTOR CONTROLS Page 56
Revised May 2003
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Section 5.4 Setup Functions for Traction Controller
FUNCTION 1 MILE PER HOUR SCALING
This function is used in conjunction with a tachometer to
determine the speed of the vehicle. The following equation
should be used to determine the appropriate setting for this
function:
Set = 10 x 3600 x 2 x Pi x RR
5280 x 12 x PPR x 0.010
FUNCTION 2 CREEP SPEED
( Push 2 )
This function allows for the adjustment of the creep speed
of the vehicle. Creep speed can be adjusted when an
accelerator input voltage between 3.9 and 3.3 volts or an
accelerator ohm input between 6K and 4.0K ohms is
provided.
Range 2% to 15% on time
Set 0 to 255
Resolution 0.05% per set unit
Example: Setting of 20 = 3% on time
Important Note: This function is used to optimize motor
and control performance and this setting will be
determined by GE and OEM engineers at the time of
vehicle development. This setting must not be changed by
field personnel without the permission of the OEM.
FUNCTION 3 ARMATURE CONTROLLED
ACCELERATION
(Push 3)
This function allows for the adjustment of the rate of time it
takes for the control to accelerate to 100% applied battery
voltage to the motor on hard acceleration.
Range 0.025 to 6.3 seconds
Set 0 to 255
Resolution 0.025 seconds per set unit
Example: Setting of 20 = 0.5 seconds
FUNCTION 4 SPEED REGULATION/DECREASING
FIELD
(Push 4)
This function allows for the adjustment of over speed
regulation. It allows the user to set the rate at which the
field current is decreased when the vehicle speed is less
than the over speed limit.
Range 0.0015 to 0.383 seconds
Set 0 to 255
Resolution 0.0015 seconds/unit
Example: (20 x 0.0015) + 0.0015 = 0.032 sec
FUNCTION 5 POTENTIOMETER/DIRECTIONAL
SWITCH CALIBRATION
( Push 5 )
This function allows the user to alternate between the
standard configuration of the truck (with control via the
accelerator potentiometer) or the optional configuration of
the truck (with control via the directional switches).
Set Mode Control Via
16 to 32 Standard Accelerator potentiometer
144 to 160 Optional Directional switches
FUNCTION 6 MPH BL3C SPEED LIMIT
( Push 6 )
This function is adjusts the value of the over speed limit of
the control.
Resolution 1 set unit = 0.1 MPH
Example Setting of 100 = 10 MPH
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