ADJUSTABLE FEATURES
IT TRANSISTOR CONTROLS
Page
40
November 2005
FUNCTION 6
Accelerator Input Slope Select
(Push 6)
This function is used to select the accelerator input slope.
Setting
Input Voltage Range
Response
0 to 9
3.5 to 1.0 VDC
Linear
10 to 19
3.5 to 1.0 VDC
Non-Linear
20 to 29
0.5 to 3.0 VDC
Linear
30 to 39
0.5 to 3.0 VCD
Non-Linear
Linear = 50% travel equal 50% on time
Non-Linear = 50% travel equals 25% on time
FUNCTION 7 MIN FIELD CURRENT
( Push 7 )
This function allows the adjustment of the field weakening
level in order to set the top speed of the motor.
Min
Max Set
Resolution Per Unit Value
0
40
51 to 255 0.269
MIN I
F
= (VAL-51) X 0.269
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 8 MAX FIELD CURRENT
( Push 8 )
This function allows for the adjustment of the maximum
field current in order to obtain the maximum torque of the
motor.
Min
Max Set
Resolution Per Unit Value
0
40
51 to 255
0.269
MAX I
F
= (VAL-51) X 0.269
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 9 REGEN BRAKING C/L
(Push
9)
This function allows for the adjustment of the Regen
braking current limit. Higher current correlates to shorter
stopping distance.
Resolution
Example
Min
Max
Set
Per unit value If set at 20
32A 291A 0 to 255 1.0156 amps
53 amps
REGEN BRAKE I
A
= (VAL X 1.0156) + 32
FUNCTION 10 REGEN FIELD CURRENT LIMIT
( Push 10 )
This function allows for the adjustment of the field current
to be used during the regen braking mode.
Resolution
Example
Min
Max Set
Per unit value If set at 71
0
40
51 to 255 0.269 amps
5.38 amps
I
F
= (VAL-51) X 0.269
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 11
FORWARD SPEED LIMIT
(Push
11)
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 forward 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 12
REVERSE SPEED LIMIT
(Push
12)
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%