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Pro-160 / 360 Fault Codes

The Pro-160 and Pro-360 have a number of warning messages or error codes that can appear depending on what the controller thinks is happening.

This table lists;

  • the code
  • any associated sound signal
  • whether the code is a warning or indicates a fault
  • the text shown on the display
  • the behaviour of the controller
Code Sound

[No of beeps in 5 secs]

Type

Fault/

Warning

Error Text

 

Error Description (Manual) Behaviour
B1 None F Under Voltage The battery voltage is below the Low Voltage cut-off (if set) or 11V (system default). Start-up – Do not start

Run-time – Ramp down, resume if cleared

B2 One short beep (if on in profile) W Low Battery The battery voltage is at or below the low voltage alert (if set) or 11.9 (system default) Depends on profile setting (volt_alert.action)
B3 None W High Battery The battery voltage is above:

60V (Std PRO-160)

90V (HV PRO-160)

Flash warning message
B4 None F Over Voltage The battery voltage is above:

63V (Std PRO-160)

95V (HV PRO-160)

Start-up – Do not start

Run-time – Ramp down, resume if cleared

T1 One long beep W High Temp The controller temperature is over 65C Flash warning message

Run-time – ramp down to 50% of max speed (if over 50%)

T2 One long beep F Over Temp The controller temperature is over 75C Start-up – Do not start

Run-time – Ramp down, stop

T3 One long beep W TX High Temp The second thermistor temperature is over warning limit [may be used for motor for example] Flash warning message

 

T4 One long beep W TY High Temp The third thermistor temperature is over warning limit [may be used for battery for example] Flash warning message

 

P1 Continuous F High Pot Lock High POT lockout Start -up -Flash error message until POT is set to minimum

Run-time -N/A

P2 Continuous F Pot Fault [V3 boards]

Pot track fault

The pot top value is higher than the expected value indicating pot wiring fault. See note 1 at end.

Start-up – Flash error message and switch off

Run-time – Ramp down, stop

P3 Continuous F Pot Fault [V3 boards]

Pot wiper fault, often due to worn tracks.

The POT value is higher than the expected range indicating faulty Pot.

Start-up – Flash error message and switch off

Run-time –

2.4.0 & earlier, ramp down & stop.

2.4.1 onwards, ramp down, resume if fault clears.

P4 3 short F RC Fault RC signal is not in expected range of values Start-up – Flash error message until signal is in range.

Run-time – Ramp down

Restart automatically if ranges return to normal

X1 2 short F Dead Mans Hdl The Dead Man’s handle is set on Start-up – Flash error message until set off

Run-time  – Ramp down

Restart automatically if DMH goes off

X2 2 short F Emerg Stop Emergency stop signal received Start-up – Flash error message until set off

Run-time  – STOP IMMEDIATELY

C1 None W Over Current Current overload occurring. The current is above the SYSTEM (hardcoded) maximum safe curent.

[Note: whether it is + or – overcurrent is not information required by the user]

Flash warning message. Special behaviour, emergency stop after 300 milliseconds at this level.
C2 None W Current Limit Current limit. Current is being held to the current limit set for the profile Flash warning message.
K1 2 long F Park Brake Parking brake over current Start-up – Do not start

Run-time – Ramp down, stop

Q1-4 3 long F MOSFET Mosfet Faults. See note 2 at end. Start up check
S1 None W Speed Limit Speed limit. Speed (width of signal from speed sensor) is being held to the speed limit set for the profile Flash warning message.
S2 None W Speed Signal Reading from the speed sensor is not in the expected range of values Flash warning message

Notes:

1. P2 Pot fault can also occur if R111 [0 ohms] is blown. This can occur if pin F is short circuited to B+. It can be repaired by bridging with a small wire link.

2. Qx faults can occur if there is a short circuit between mosfets and the heatsink. Use a multi-meter set the 200k resistance scale and measure between the heatsink and each of the B+/B-/M+/M- terminals in turn, there should be no discernible continuity. If there is then check that all the black insulating washers are in place on the mosfet mounting screws.

We have also seen two cases of false positive Q errors that were traced to faulty battery isolator switches which had developed a slightly high resistance across the internal contacts. This was identified by temporarily bypassing the isolator.