Wesley BC-620-4CA User Manual
Page 120
116
Curtis 1234/36/38 Manual,
OS
11
Table 5 TROUBLESHOOTING CHART, continued
PROGRAMMER LCD DISPLAY
CODE
EFFECT OF FAULT
POSSIBLE CAUSE
SET/CLEAR CONDITIONS
8 — DIAGNOSTICS & TROUBLESHOOTING
44
Pot2 Wiper Low
1. See Monitor menu » Inputs:
Set: Pot2 wiper (pin 17) voltage
FullBrake.
Pot2 Raw.
is lower than the low fault threshold
2. Pot2 wiper voltage too low.
(can be changed with the VCL function
Setup_Pot_Faults()
).
Clear: Bring Pot2 wiper voltage
above the fault threshold.
45
Pot Low Overcurrent
1. See Monitor menu » Outputs:
Set: Pot low (pin 18) current exceeds 10mA.
ShutdownThrottle;
Pot Low.
Clear: Clear pot low overcurrent condition
FullBrake.
2. Combined pot resistance connected and cycle KSI.
to pot low is too low.
46
EEPROM Failure
1. Failure to write to EEPROM
Set: Controller operating system tried to
memory. This can be caused by
write to EEPROM memory and failed.
EEPROM memory writes initiated Clear: Download the correct software (OS)
by VCL, by the CAN bus, by
and matching parameter default settings
adjusting parameters with the
into the controller and cycle KSI.
programmer, or by loading new
software into the controller.
47
HPD/Sequencing Fault
1. KSI, interlock, direction, and throttle Set: HPD (High Pedal Disable) or
ShutdownThrottle.
inputs applied in incorrect sequence. sequencing fault caused by incorrect
2. Faulty wiring, crimps, or switches at sequence of KSI, interlock, direction, and
KSI, interlock, direction, or throttle
throttle inputs.
inputs.
Clear: Reapply inputs in correct sequence.
3. See Monitor menu » Inputs.
47
Emer Rev HPD
1. Emergency Reverse operation has
Set: At the conclusion of Emergency
ShutdownThrottle;
concluded, but the throttle, forward
Reverse, the fault was set because various
ShutdownEMBrake.
and reverse inputs, and interlock
inputs were not returned to neutral.
have not been returned to neutral.
Clear: If EMR_Interlock = On, clear the
interlock, throttle, and direction inputs.
If EMR_Interlock = Off, clear the
throttle and direction inputs.
49
Parameter Change Fault
1. This is a safety fault caused by a
Set: Adjustment of a parameter setting
ShutdownMotor;
change in certain parameter
that requires cycling of KSI.
ShutdownMainContactor;
settings so that the vehicle will not
Clear: Cycle KSI.
ShutdownEMBrake;
operate until KSI is cycled.
ShutdownThrottle;
For example, if a user changes the
FullBrake;
Throttle Type this fault will appear
ShutdownPump.
and require cycling KSI before the
vehicle can operate.
51–67 OEM Faults
1. These faults can be defined by the
Set: See OEM documentation.
(See OEM documentation.)
OEM and are implemented in the
Clear: See OEM documentation.
application-specific VCL code. See
OEM documentation.
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
ShutdownInterlock;
ShutdownDriver1;
ShutdownDriver2;
ShutdownDriver3;
ShutdownDriver4;
ShutdownPD;
FullBrake;
ShutdownPump.