GE IC3645SR3R404P2 - Setup Functions for Traction Controller

ADJUSTABLE FEATURES
SX TRANSISTOR CONTROLS Page 47
July 1999
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Section 5.4 Setup Functions for Traction Controller
FUNCTION 1 MODE SELECT
(Push 1)
Available mode selections are defined in the following
table:
Mode Handset Setting
1 0 to 63
2 64 to 127
3 128 to 255
FUNCTION 2 CREEP SPEED
( Push 2 )
This function allows for the adjustment of the creep speed
of the vehicle. Creep speed can be adjusted when an
accelerator input voltage between 3.9 and 3.3 volts or an
accelerator ohm input between 6.0 K and 4.0K ohms is
provided. For ease of handset adjustment, every eight set
points increases the percent on time by 0.2%. Note, the
controller always rounds decimal answers down to the
nearest integer during these division calculations.
Range 2% to 15% on time
Set 0 to 255
Resolution 0.2% per eight set units
Example: Setting of 20 = 0.4% 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 NOT APPLICABLE
This function is not applicable to this type of control and
should not be adjusted.
FUNCTION 4 ARMATURE CURRENT LIMIT
(Push 4)
This function allows for the adjustment of the armature
current limit of the control. The armature current limit at
50% on time is defined by the following equation, where the
maximum function value is 255 and the minimum function
value is 0:
I
A
= 418 - [(255-function value)/8] x 6.5
Note, the controller always rounds decimal answers down
to the nearest integer during these division calculations.
100
% ON TIME
AMPS
0102030405060708090
300
400
500
200
100
ARMATURE CURRENT LIMIT CURVE
MAXIMUM
MINIMUM
FUNCTION 5 PLUGGING CURRENT LIMIT
(Push 5)
This function allows for the adjustment of the plugging
distance of the vehicle. The larger the current setting, the
shorter the stopping distance. The correlation between the
function setting and the actual plug current limit is
expressed by the following equation:
I
p
= [(Function value/4) + 8 ] x 6.5
Range 117 to 400 amps
Set 41 to 216
Example: Setting of 50 = 130 amps
Note, the controller always rounds decimal answers down
to the nearest integer during these division calculations.