ADJUSTABLE FEATURES
SX TRANSISTOR CONTROLS
Page
42
March 2002
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 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.
I
ARM
Resolution
Max
Min
Max
Set
Per unit value
740A
0
60
51 to 255 .314
1000A 0
100
51 to 255 .507
MIN I
F
= (VAL-51) X .314
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.
I
ARM
Resolution
Max
Min
Max
Set
Per unit value
740A
0
60
51 to 255 .314
1000A 0
100
51 to 255 .507
MAX I
F
= (VAL-51) X .314
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. The higher the current, the shorter the stopping
distance.
Resolution
Example
Volts
Min
Max Set
Per unit value If set at 20
36/48
183A 597A 0 to 255
1.625+183
215 amp
REGEN BRAKE I
A
= (VAL X 1.625) + 183 48 VOLTS
FUNCTION 10
FIELD CURRENT FOR REGEN
( Push 10 )
This function allows for the adjustment of the field current to
be used during the regen braking mode.
I
ARM
Resolution
Example
Volts
Min
Max Set
Per unit value If set at 71
740A
0
60
51 to 255
.314
6.28A
1000A 0
100
51 to 255
.507
10.14A
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
MAINTENANCE CODE SPEED LIMIT
(Push
11)
This function allows for the adjustment of the speed limit
(maximum battery volts to the motor) when the maintenance
code is activated by the control.
Range
100% to 0% battery volts
Set
0 to 180
Resolution
-0.56% per set unit
Example
Setting of 20 = 88.8% battery volts
FUNCTION 12
MAX ARMATURE PERCENT ON
( Push 12 )
This function allows for the adjustment of the motor speed
limit (maximum battery volts to the motor). The dash display
mode selection enables the speed limit as well as setting the
level of speed limit.
FUNCTION 13
SPEED LIMIT 3
( Push 13 )
The SL3 set speed limit is activated by the Truck
Management Module 90,91 and also status code 99. See
Section 5 for Truck Management Module details;
Maintenance Speed Limit.