33
1
1
THERMAL FAULT
over-/under-temperature
cutback
– Temperature >80°C or <
-10°C.
2. Excessive load on vehicle.
3.Operation
in
extreme
environments.
4.Electromagnetic
brake
not
releasing.
1
2
THROTTLE FAULT
PotLow and/or PotWiper
out of range
1.Throttle input wire open or
shorted.
2.Throttle pot defective.
3.Wrong throttle type selected.
1
3
SPEED POT FAULT
speed limit pot wiper out of
range
1.Speed limit pot wire(s) broken
or shorted.
2. Broken speed limit pot.
1
4
UNDERVOLTAGE
FAULT
battery voltage too low
1. Battery voltage <17 volts.
2. Bad connection at battery or
controller.
1
5
OVERVOLTAGE
FAULT
battery voltage too high
1. Battery voltage >31 volts.
2. Vehicle operating with charger
attached.
3.Intermittent battery connection.
2
1
MAIN OFF FAULT
main contactor driver Off
fault
1.Main contactor driver failed
open.
2
3
MAIN FAULT
main contactor fault
1.Main contactor welded or stuck
open.
2. Main contactor driver fault.
2
4
MAIN ON FAULT
main contactor driver On
fault
1.Main contactor driver failed
closed.
3
1
WIRING FAULT
HPD fault present >10 sec.
1.Misadjusted throttle.
2.Broken throttle pot or throttle
mechanism.
3
2
BRAKE ON FAULT
brake On fault
1.Electromagnetic brake driver
shorted.
2.Electromagnetic
brake
coil
open.
