Wheel System, Traction
194
Service Manual – SC6500
™
Troubleshooting Chart
Flash
Code
#
Programmer LCD
Display
/ Effect Of Fault
Possible Cause(s)
Set
/
Clear
Conditions
32
Coil2 Driver Open/Short
ShutdownDriver2.
1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.
Set
: Driver 2 (pin 5) is either
open or shorted. This fault can
be
set
only when EM Brake
Type = 0.
Clear
: Correct open or short,
and cycle driver.
32
EMBrake Open/Short
ShutdownEMBrake;
ShutdownThrottle;
FullBrake.
1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.
Set
: Electromagnetic brake
driver (pin 5) is either open or
shorted. This fault can be
set
only when EM Brake Type > 0.
Clear
: Correct open or short,
and cycle driver.
33
Coil3 Driver Open/Short
ShutdownDriver3.
1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.
Set
: Driver 3 (pin 4) is either
open or shorted.
Clear
: Correct open or short,
and cycle driver.
34
Coil4 Driver Open/Short
ShutdownDriver4.
1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.
Set
: Driver 4 (pin 3) is either
open or shorted.
Clear
: Correct open or short,
and cycle driver.
35
PD Open/Short
ShutdownPD.
1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.
Set
: Proportional driver (pin 2)
is either open or shorted.
Clear
: Correct open or short,
and cycle driver.
36
Encoder Fault
ShutdownEMBrake;
ShutdownThrottle.
1. Motor encoder failure.
2. Bad crimps or faulty wiring.
3. See Monitor menu » Motor:
Motor RPM.
Set
: Motor encoder phase
failure detected.
Clear
: Cycle KSI.
37
Motor Open
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake; ShutdownPump.
1. Motor phase is open.
2. Bad crimps or faulty wiring.
Set
: Motor phase U, V, or W
detected open.
Clear
: Cycle KSI.
38
Main Contactor Welded
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake; ShutdownPump.
1. Main contactor tips are welded
closed.
2. Motor phase U or V is
disconnected or open.
3. An alternate voltage path
(such as an external precharge
resistor) is providing a current
to the capacitor bank (B+
connection terminal).
Set
: Just prior to the main
contactor closing, the capacitor
bank voltage (B+ connection
terminal) was loaded for a
short time and the voltage did
not discharge.
Clear
: Cycle KSI
