GE IC3645SR7A353T4 Installation And Operation Manual page 31

Separately excited (sx) transistorized motor controllers for neighborhood electric vehicle applications
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ADJUSTABLE FEATURES
SX TRANSISTOR CONTROLS
Range
32 to 350 amps
Set
1 to 255
Resolution
1.38 amps per set unit
Example
Setting of 221 = (221x1.38)
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
Setting of 110 =110/255 x 100
=43%
FUNCTION 12
REVERSE SPEED LIMIT
This function allows for the adjustment of the top speed of
the vehicle (maximum battery volts to the motor) when it is
being operated in the reverse direction.
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
Setting of 110 =110/255 x 100
=43%
FUNCTION 13
ROLLING RADIUS
This function allows for defining the vehicles rolling radius
in inches.
Range
0 to 25.5 inches
Set
0 to 255
Resolution
0.1 inch per set unit
Example
Setting of 103 = 103 x 0.1
= 212 amps
= 10.3 inches
FUNCTION 14
NOT USED
FUNCTION 15
BATTERY VOLTS
In order for the battery discharge indication feature of this
control to operate properly, this function must be set to a
value between 70 and 80.
FUNCTION 16
Gear Ratio
This function allows for defining the vehicles gear ratio in X
to 1 format.
Range
0 to 25.5 units
Set
0 to 255
Resolution
0.1 per set unit
Example
Setting of 103 = 103 x 0.1
= 10.3 to 1 gear ratio
FUNCTION 17
FIELD GAIN
This function allows for the adjustment of the pedal field
gain. This value is determined by GE application
engineering and should be set using the OEM setting
specifications for this vehicle.
FUNCTION 18
FIELD OFFSET
This function allows for the adjustment of the pedal field
offset. This value is determined by GE application
engineering and should be set using the OEM setting
specifications for this vehicle.
FUNCTION 19
PEDAL DOWN OR BRAKE REGEN
RATE
This function adjusts the rate at which speed is reduced
during regenerative when a direction change is made or
the brake switch is closed in neutral.
Setting
Setting of 1 = Most aggressive braking
Setting of 255 = Least aggressive braking
FUNCTION 20
PEDAL UP REGEN RATE
This function adjusts the rate at which speed is reduced
during regenerative braking when the accelerator pedal is
released.
Setting
Setting of 1 = Most aggressive braking
Setting of 255 = Least aggressive braking
Page 31
1 to 255
1 to 255
Updated Sept 2019

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