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ML
Left Blade Controller
10
FAULT CODE (FOR CZ SERIES)
A/B
1.2
Controller Overcurrent If machine is operating under
heavy load, reduce load with
lower speed drive.
1. Inspect traction motor wires and connections
as there may be a short. If there is, replace
traction motor and wires.
2. Replace controller.
A/B
1.3
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.
A/B
1.4
Precharge Failed
Cycle KSI
1. Check wire connections to keyswitch.
2. Check the positive and negative poles of the
mower controller are shorted.
A/B
1.5
Controller Severe Un-
dertemp
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.
A/B
1.6
Controller Severe Over-
temp
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.
A/B
1.7
Severe Under voltage
Check battery wires and
connections; Check fuse state
and main contact connections.
Capacitor bank voltage dropped below the Severe
Undervoltage limit with FET bridge enabled.
A/B
1.8
Severe Overvoltage
Check battery wires and
connections; Check fuse state
and main contact connections.
Capacitor bank voltage exceeded the Severe
Overvoltage limit with FET bridge enabled.
A/B
2.2
Controller Overtemp
Cutback
Stop vehicle and allow to cool
down. If operating in a hot
environment, wait until
temperature cools down.
Bring heatsink temperature below 85°C.
A/B
2.3
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.
A/B
2.4
Overvoltage Cutback
Check battery wires and
connections; Check fuse state
and main contact connections.
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.
17
English
EN
P0802464-00 v1.2