B
FAULT TESTING
Read all of SAFETY and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
135
Repair and Service Manual
699327
1-8
Severe
Overvoltage
Capacitor bank
voltage exceeded
limit
Vehicle
Disabled
Condition
clears and
KSI cycled
1.See monitor menu-Battery: capacitor
voltage
2. Battery menu parameters are mis-
adjusted
3. Battery resistance too high for given regen
current
4. Battery disconnected while regen braking
2-2
Controller
Over temp
Cutback
Heat sink temp
exceeded 85*C
Reduced drive
and brake
torque
Condition
clears
1.See monitor menu-Controller: temperature
2.Controller is performance-limited at this
temperature
3.Controller is operating in an extreme
environment
4.Excessive load on vehicle
2-3
Under voltage
Cutback
Capacitor bank
voltage dropped
below limit
Reduced Drive
torque and
speed
Condition
clears
1.Normal operation. Fault shows that
batteries need recharging
2.Battery parameters are mis-adjusted
3.Non-controller system drain
4.Battery resistance to high
5.Battery disconnected while driving
6.See Monitor menu-Battery: capacitor
voltage
7.Blown B+ fuse or main contactor did not
close
2-4
Overvoltage
Cutback
Capacitor bank
voltage exceeded
Overvoltage limit
Reduced brake
torque
Condition
clears
1.Normal operation. Fault shows that the
regen braking currents elevated the battery
voltage during regen braking. Controller is
performance limited at this voltage
2. Battery parameters are mis-adjusted
3. Battery resistance too high for given regen
current
4.Battery disconnected while regen braking
5.See Monitor menu - Battery: ca (capacitor
voltage)
2-5
+5V supply
Failure
+ 5 V supply (pin
26) outside the +5V
+ or - 10% range
None: Check
VCL
Condition
clears
1.External load impedance on the + 5 V
supply is too low
2.See Monitor menu-Outputs: 5 volts and ext
supply current
LED
Code
1313
Display
Explanation
Controller
Response
Recover
When
Possible Cause
Fig. 7 Fault Code Chart (Continued)
PRELIMINARY
