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Pro-100 Fault Codes

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The Pro-100 has a number of warning messages or fault codes that can occur depending on what the controller thinks is happening. Each message has an associated sequence of warning beeps.

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 [if fitted].
  • The behaviour of the controller.
Code Sound [every 5 secs] F/W Text shown Description
B1 1 short F Under Voltage Start-up – Do not start. Run-time – Ramp down, stop
B2 2 short W Low Battery Run-time – ramp down to 50% of max speed. Voltage must exceed low battery voltage (plus 1%) for 10 seconds to come out of low voltage mode.
B3 5 short W High Battery
B4 5 short F Over Voltage Start-up – Do not start. Run-time – Ramp down, resume if cleared.
L1 None W Logging Error An error has occurred when writing to the uSD card Controller continues to run, but logging is disabled.
T1 1 long W High Temp Run-time – reduce power gradually depending on temperature.
T2 1 long F Over Temp Start-up – Do not start. Run-time – Ramp down, stop.
T3 1 long W TX High Temp
T4 1 long W TY High Temp
P1 Continuous F High Pot Lock Start -up – Flash error message until POT is set to minimum.
P2 3 short F Pot Fault Start-up – Flash error message and switch off. Run-time – Ramp down, stop. See note 1 at end.
P3 3 short F Pot Fault Start-up – Flash error message and switch off. Run-time, Ramp down, resume if cleared.
P4 3 short F RC Fault Start-up – Flash error message until signal is in range. Run-time, Ramp down. Restart automatically if ranges return to normal. See note 2.
P5 3 short F Limit switch Start-up – Flash error message until one or both buttons released. Run-time – Ramp down, resume if cleared.
P6 3 short F Vmode chk Start-up – Flash error message until voltage is in range.
Run-time – Ramp down, resume if cleared.
X1 1 short F Dead Mans Hdl Start-up – Flash error message until set off
Run-time – Ramp down, restart automatically if DMH goes off.
X2 1 short F Emergency Stop Start-up – Flash error message until set off.
Run-time – STOP IMMEDIATELY.
C1 None W Over Current Flash warning message. Special behaviour, emergency stop after 300 milliseconds at this level.
C2 None W Current Limit
K1 2 long F Park Brake Start-up – Do not start.
Run-time – Ramp down, stop.
Q1-4 3 long F MOSFET Mosfet failure. See note 3.
S1 None W Speed Limit
S2 4 short W/F Speed Signal Flash warning message / shutdown [defaults to a warning].
It is possible to configure as a shutdown via the menu.

Notes:

1. P2 Pot fault can also occur if R111 [0 ohms] is blown. This can occur if pin F is accidentally short-circuited to B+. Test for continuity between the * point and pin F. If open circuit, it can be repaired by bridging with a small wire link.

2. P4 RC fault can occur if the J1 jumper is missing [just above the RDO port on the control board].

3. 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.

 

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