ADJUSTABLE FEATURES
SX TRANSISTOR CONTROLS Page 57
February 2002
FUNCTION 14 INTERNAL RESISTANCE
COMPENSATION
( Push 14 )
This function is used when the Battery Discharge Indicator
is present. Adjustment of this function will improve the
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
24 volts Between 0 and 31
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 TRIP POINT WITH % ON-TIME
( Push CONT 1)
This function allows for the adjustment of control percent
on time for the stall motor trip point
Control % On time = 163 -(Set Point Val)*.892
If 163 or greater, then “0.0” % on time
If 51 or less, then “100.”% on-time
FUNCTION 17 CARD TYPE SELECTION
( Push CONT 2 )
This function allows for the selection of the card type used
for your vehicle's application. The table below shows the
setting to select card application type, depending on which
control card is used.
FUNCTIONS REGEN
BDI Lockout Disable Auto Regen 50 to 54
BDI Lockout Enable AutoRegen 55 to 59
Settings for these functions should be made within the
ranges indicated above.
Warning: These settings must be changed by authorized
personnel only, following instructions supplied by the
vehicle manufacturer. Card type selection must be made
within the capabilities of the control panel used and the
supporting electro mechanical devices. Failure to comply
with proper application standards could result in mis-
operation or damage to the control and/or motors.
FUNCTION 18 STEER PUMP TIME DELAY
( Push CONT 3 )
This function allows for the selection of steer pump
contactor pick up input, either seat switch or directional
switch closing, and adjustment of the time delay for the
contactor drop out.
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.
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