11
FAULT CODE (FOR PZ SERIES)
Sys-
tem
Code Fault
Operator/Field Fix
Technical/Diagnostic Fix
TR/TL 12
Controller Overcurrent If machine is operating under
heavy load, reduce load with
lower speed drive. Cycle KSI
1. Inspect traction motor wires and connections
as there may be a short. If there is, replace
traction motor and wires.
2. Replace controller.
TR/TL 13
Current Sensor Fault
Cycle KSI
1. Inspect traction motor wires and connections
as there may be a short. If there is, replace
traction motor and wires.
2. Replace controller.
TR/TL 14
Precharge Failed
Cycle KSI
1. Check wire connections to keyswitch.
2. Check the positive and negative poles of the
mower controller are shorted.
TR/TL 15
Controller Severe
Undertemp
Bring unit into warm
environment and allow the
machine and battery to warm up.
Bring heatsink temperature above -40°C, and
cycle interlock or KSI.
TR/TL 16
Controller Severe
Overtemp
Stop vehicle and allow to cool
down. If operating in a hot
environment, wait until
temperature cools down.
Bring heatsink temperature below +95°C, and
cycle interlock or KSI.
TR/TL 17
Severe Under voltage
Check battery wires and
connections; Check fuse state
and main contact connections.
1. Check the Battery parameters.
2. Check the connections;
3. Check the KSI or B+ fuse.
TR/TL 18
Severe Overvoltage
Cycle KSI
Bring capacitor voltage below Severe
Overvoltage limit ,and then cycle KSI.
TR/TL 22
Controller Overtemp
Cutback
Stop vehicle and wait to the
Controllers cool down. If
operating in a hot environment,
wait until temperature cools down.
Bring heatsink temperature below 85°C.
TR/TL 23
Under voltage Cutback The battery voltage is too low
Check battery wires and
connections; Check fuse state
and main contact connections.
1. Normal operation. Fault shows that the
batteries need recharging. Controller is
performance limited at this voltage.
2. Battery parameters are misadjusted.
3. Non-controller system drain on battery.
4. Battery resistance too high.
5. Battery disconnected while driving.
6. See Monitor menu>> Battery: Capacitor
Voltage.
7. Blown B+ fuse or main contactor did not
close.
TR/TL 24
Overvoltage Cutback
Cycle KSI
1. Normal operation. Fault shows that regen
braking currents elevated the battery voltage
during regen braking. Controller is
performance limited at this voltage.
2. Battery paramet ers are misadjusted.
3. Battery resistance too high for given regen
current.
4. Battery disconnected while regen braking.
5. See Monitor menu >> Battery: Capacitor
Voltage.
24
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P0802464-00 v1.2