ADJUSTABLE FEATURES
SX TRANSISTOR CONTROLS
Page
63
September 2004
accuracy of the BDI. In order to determine this setting the
voltage drop of the battery under load must first be
calculated by the following method. This function can be
changed by the dash display mode selection button.
1. On a fully charged battery
,
record the open circuit
voltage (Vo) by measuring the voltage at the control
positive and negative power terminals.
2. Load the traction motor to 100 amps in 1A and record the
voltage (V
L
) at the control positive and negative power
terminal.
3. Calculate voltage drop (V
Drop
) as follows:
V
Drop
= V
O
- V
L
4. Use the table below to determine the appropriate setting
using the calculated V
Drop
as a reference.
INTERNAL RESISTANCE COMPENSATION
TABLE
Setting V
Drop
Setting V
Drop
2 11.44 17 01.34
3 07.60 18 01.27
4 05.72 19 01.20
5 04.57 20 01.14
6 03.81 21 01.09
7 03.27 22 01.04
8 02.86 23 00.99
9 02.54 24 00.95
10 02.28 25 00.91
11 02.08 26 00.88
12 01.90 27 00.85
13 01.76 28 00.82
14 01.63 29 00.79
15 01.52 30 00.76
16 01.43 31 00.74
FUNCTION 15
BATTERY VOLTS
(Push
l5)
This function allows for the adjustment of voltage range for
controls equipped with the Battery Discharge Indication
function. In order for the BDI to operate properly, the
setting as shown in the table must be entered:
Battery volts
Set units
36 volts
Between 32 and 44
48 volts
Between 45 and 69
72 volts
Between 70 and 80
80 volts
Between 81 and 183
36/48 volts
Between 184 and 250
No BDI
Between 251 and 255
.
FUNCTION 16 STALL PROTECTION % ON-TIME TRIP
POINT
( Push CONT 1)
This function allows for the adjustment of the stall motor
protection, as well as the display and storing of an 82 fault
code. This function adjusts the percent on time at which
the fault occurs when the accelerator is calling for greater
than 50% speed and the armature current is above 500
amps at 36/48V (or above 370 amps at 72/80V).
Range
100% to 0% battery volts
Set
46 to 180
Resolution
0.75% per set unit
Example
Setting of 125 = 41% on-time
% ON TIME = 100% - ((VAL-46) x 0.75%)
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 17
CARD TYPE SELECTION
( Push CONT 2 )
This function allows the user to enable or disable the
vehicle’s auto braking routine by setting the function within
the ranges outlined below.
Control Function Setting
740A, 36/48V 1A enabled, auto braking enabled
128 to 255
740A, 36/48V 1A enabled, auto braking disabled
64 to127
740A, 36/48V Without 1A, auto braking enabled
50 to 63
740A, 36/48V Without 1A, auto braking disabled
0 to 49
600A, 36/48V Auto braking enabled
50 to 255
600A, 36/48V Auto braking disabled
0 to 49
450A, 72/80V Auto braking enabled
50 to 255
450A, 72/80V Auto braking disabled
0 to 49
1000A
1A enabled, auto braking enabled
128 to 255
1000A
1A enabled, auto braking disabled
64 to127
1000A
Without 1A, auto braking enabled
50 to 63
1000A
Without 1A, auto braking disabled
0 to 49
The following functions have function numbers larger
than the numbers on the Handset keyboard. To
access these functions. Push the CONT key and the
number shown in the following instructions at the
same time. THE SEAT SWITCH MUST BE OPEN.