Tug Compact—Operating Manual
15
Appendix 2: Fault codes
LED codes
Explanation
LED off
No power or defective controller.
Solid on
Controller operational; No faults.
1, 1
R R
Thermal cutback fault.
1, 2
R RR
Throttle fault.
1, 3
R RRR
Speed limit pot fault.
1, 4
R RRRR
Undervoltage fault.
1, 5
R RRRRR
Overvoltage fault.
2, 1
RR R
Main contactor drive ‘off’ fault.
2, 3
RR RRR
Main contactor fault.
2, 4
RR RRRR
Main contactor drive ‘on’ fault.
]
3, 1
RRR R
HPD fault present for > 10 seconds.
3, 2
RRR RR
Brake ‘on’ fault.
3, 3
RRR RRR
Precharge fault.
3, 4
RRR RRRR
Brake ‘off’ fault.
3, 5
RRR RRRRR
HPD (high pedal disable) fault.
]
4, 1
RRRR R
Current sense fault.
]
4, 2
RRRR RR
Motor voltage fault (hardware failsafe).
]
†
4, 3
RRRR RRR
EEPROM fault.
]
4, 4
RRRR RRRR
Power section fault.
]
= Must cycle keyswitch to clear.
†
= Must use programmer to clear, as follows: Select ‘parameters menu’;
alter data vaule of any parameter; cycle keyswitch.
Note: Only one fault is indicated at a time, and faults are not queued up.
