ADJUSTABLE FEATURES
SX TRANSISTOR CONTROLS
Page
30
Section 5 Setup Functions for Traction
Controller
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2
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FUNCTION 1
NOT USED
FUNCTION 2
CREEP SPEED
This function allows for the adjustment of the creep speed
of the vehicle when the accelerator potentiometer is at its
minimum value and the start switch is closed.
Range
2% to 15% on time
Set
0 to 255
Resolution 0.047% per set unit
Example
Setting of 205=(205x0.047)+2
= 11% on time
Important Note: The 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 ACCELERATION RATE
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 in the forward
direction.
Range
0.1 to 25.5 seconds
Set
1 to 255
Resolution
0.086 seconds per set unit
Example:
Setting of 20 = 20 x 0.086=1.72
seconds
FUNCTION 4
MAX ARMATURE CURRENT LIMIT
This function allows for the adjustment of the armature
current limit of the control during motoring.
Range
0 to 350 amps
Set
0 to 255
Resolution
1.38 amps per unit
Example:
Setting of 255 =(255x1.38)
= 350 amps
FUNCTION 5
NOT USED
FUNCTION 6
NOT USED
FUNCTION 7
NOT USED
FUNCTION 8
MAX FIELD CURRENT
This function allows for the adjustment of the maximum
field current in order to obtain the maximum torque of the
motor.
Range
0 to 30 amps
Set
51 to 255
Resolution
0.147 amps per set unit
Example
Setting of 251=(251
–51)x0.147
= 30 amps
CAUTION:
Do not set this function to a value less than 51.
Important Note: The 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 9
REGEN ARMATURE CURRENT LIMIT
This function allows for the adjustment of the maximum
armature current limit during regenerative braking.
Range
32 to 350 amps
Set
1 to 255
Resolution
1.38 amps per set unit
Example
Setting of 221 = (221x1.38)
= 212 amps
FUNCTION 10 REGEN FIELD CURRENT LIMIT
This function allows for the adjustment of the maximum
field current limit during regenerative braking.
Range
0 to 30 amps
Set
51 to 255
Resolution
0.147 amps per set unit
Example
Setting of 180 = (180-51)x0.147
= 19.0 amps
CAUTION:
Do not set function 10 to a value less than 51.
Important Note: The 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 11
TURF SPEED LIMIT
This function allows for the adjustment of the top speed of
the vehicle (maximum battery volts to the motor) when it is
in Turf Mode.
Range
100% to 0%
Set
0 to 255
Resolution
0.39% per set unit
Example:
Setting of 0 = no speed limit
Setting of 255 = maximum speed
reduction
Updated Sept 2019
