B
FAULT TESTING
Read all of SAFETY and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
137
Repair and Service Manual
699327
3-3
Coil 3 Driver
Open or Short
Driver 3 (pin4) is
either open or
shorted. This fault
can only be set
when main enable
=off
Shutdown
driver 3
Correct
condition
and cycle
driver
1.Open or short on driver load
2.Dirty connector pins
3.Bad crimps or faulty wiring
3-4
Coil 4 Driver
Open or Short
Driver 4 (pin3) is
either open or
shorted. This fault
can only be set
when main enable
=off
Shutdown
driver 4
Correct
condition
and cycle
driver
1.Open or short on driver load
2.Dirty connector pins
3.Bad crimps or faulty wiring
3-5
PD Open or
Short
The Proportional
driver (pin2) is either
open or shorted.
This fault can only
be set when main
enable =off
Shutdown PD
driver
Correct
condition
and cycle
driver
1.Open or short on driver load
2.Dirty connector pins
3.Bad crimps or faulty wiring
3-6
Encoder Fault
Motor encoder
phase failure
detected.
Throttle
Shutdown
KSI cycled
1.Motor encoder failure
2.Bad crimp or faulty wiring
3.See Monitor menu - Motor: motor rpm
3-7
Motor Open
Motor Phase U,V or
W detected open
Vehicle
Disabled
KSI cycled
1.Motor phase is open
2.Bad crimps or faulty wiring
3-8
Main
Contactor
Welded
Prior to main
contactor closing,
capacitor bank
voltage was loaded
for a short time and
did not discharge
Vehicle
Disabled
KSI cycled
1.Main contactor tips are welded closed
2.Motor phase U or V is disconnected or
open
3.An alternate voltage path is providing a
current to the capacitor bank (B+
connection terminal)
3-9
Main
Contactor Did
Not Close
With the main
contactor
commanded closed,
the bank voltage (B+
connection terminal)
did not charge to B+
Vehicle
Disabled
KSI cycled
1.Main contactor did not close
2.Main contactor tips are oxidized, burned,
or not making a good contact
3.External load on capacitor bank (B+
connection terminal) that prevents
capacitor bank from charging
4. Blown B+ fuse
4-1
Throttle Wiper
High
Throttle pot wiper
(pin16) voltage is
higher than high
fault setting
Shutdown
throttle
Condition
clears
1.See Monitor menu-Inputs: throttle pot
2.Throttle pot wiper voltage too high
LED
Code
1313
Display
Explanation
Controller
Response
Recover
When
Possible Cause
Fig. 7 Fault Code Chart (Continued)
PRELIMINARY
