ADJUSTABLE FEATURES
SX TRANSISTOR CONTROLS
Page
30
Section 5 Setup Functions for Traction Controller
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can access any E
2
Prom setting, quickly perform various maintenance,
diagnostic, and trouble-shooting tasks without the aid of additional test
equipment. GE intelliGEnce for Palm OS and GE Sentry for Windows
links directly to the microprocessor in the controller. See GE intelliGEnce
for Palm OS and GE Sentry for Windows instructions for additional
details.
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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
PLUG CURRENT LIMIT
(Push 5)
This function allows for the adjustment of the maximum
current allowed during plug braking.
Range
0 to 225 amps
Set
0 to 255
Resolution
0.5 amps per unit
Example
Setting of 20 = 52 + (20 X .5) =
62 Amps
FUNCTION 6
ARMATURE DECELERATION RATE
This function allows for the adjustment of the rate of time it
takes for the control to decelerate to 0% applied battery
voltage to the motor on pedal up.
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 7
MIN FIELD CURRENT
This function allows the adjustment of the field weakening
level in order to set the top speed of the motor.
This
function is used only when Mode 0 is selected.
Range
0 to 20 amps
Set
51 to 195
Resolution
0.15 amps per set unit
Example
Setting of 73 = (73-51) x 0.15
= 3.3 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 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.
Updated Sept 2019
