GE SX Series Installation And Operation Manual page 27

DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL
TRACTION DESCRIPTION OF STATUS
STATUS CODE
One or both accelerator pots are
-12
defective when the control is
configured for dual pot input.
MEMORY RECALL
YES
SYMPTOM
Control will not operate.
Circuits valid
for
POSSIBLE CAUSE
Traction
Defective accelerator pot.
Controller
Measure the voltage from P9 to P8.
·
Voltage should be between 4 to 4.8
volts. Voltage from P7 to NEG
should be approximately 2.14 V.
Connect the voltmeter from P7 to
P13. The voltage measured should
equal 0 to +/- 0.25V. Connect the
voltmeter to the wire removed from
P7. Connect the voltmeter negative
to the wire removed from P13. The
voltmeter should read greater than
4V, but less than 5V. If not, replace
the potentiometer.
TRACTION DESCRIPTION OF STATUS
STATUS CODE
Battery voltage is too low or control
-15
card is mis-adjusted.
MEMORY RECALL
NO
SYMPTOM
Control will not operate.
Circuits valid
for
POSSIBLE CAUSE
Traction
Discharged battery
· Check battery for proper open circuit
Controller
voltage as shown in "Trouble Shooting
Diagram", charge battery, if required.
Defective battery
· Check each battery cell for proper
voltage (greater than 1.95 volts at cell).
Replace or repair battery.
Incorrect control card adjustment.
· Check Function 15 for proper adjustment
for battery being used. See Handset
instruction sheet for details. Adjust to
proper settings.
Check "minimum" battery volts at P1 and
NEG.
CORRECTIVE ACTIONS
CORRECTIVE ACTIONS
CAUSE OF STATUS INDICATION
This status code will be displayed when the sum of
the voltages of the two pots is greater than 5V or less
than 4V.
TROUBLE-SHOOTING DIAGRAM
*
KEY SWITCH
*
24V FAN
FAN
ENABLE
L
P1 P18
P17
TRACTION CONTROL PLUG PL-2
P9 P13 P8 P10
P7
*
ACCEL
SWITCH
BDI INTERRUPT TO JOY
STICK CONTROLLER
CAUSE OF STATUS INDICATION
This status code will be displayed when the battery
volts are less than 1.95 volts per cell at initial key
switch on. See table below.
TROUBLE-SHOOTING DIAGRAM
FU5
+
-
NEG
Page 27
BRAKE SWITCH
*
2.2K
2W
FWD
REV
*
*
*
DIRECT
*
SWITCH
NEG
P2 P4 P5 P21
P6
P20
P22 P23 P14
+12V TACH
TACH SIGNAL
TEMPERATURE SENSOR
INPUT FROM TRACTION
MOTOR
TEMPERATURE INPUT FROM
PUMP CONTROL; OPEN INPUT
OR VOLTAGE > 3V = BDI
SIGNAL DISABLED
MINIMUM
NOMINAL
LIMIT VOLTS
BATTERY
AT 1.95 VDC
VOLTAGE
PER CELL
24 23.4
36 35.1
48 46.8
72 70.2
P1
80 78.0
Revised May 2003