2007.03.07Flow2 stairliftTab 06: Systematic fault finding
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4 Error messages
4.1 General
The Flow2 software has a number of error messages. When a fault occurs the code is shown as a 2-
digit number in the display preceded by an ‘E’.
Error codes have the highest priority and will therefore overrule other messages (mode, battery
voltage, etc.).
When fault finding it can be important whether the code was generated by the main processor or the
safety processor. The safety processor always gives the main processor the chance to generate an
error code itself. If the main processor does not do that, while it is necessary, the safety processor
takes action. When the code is generated by the safety processor, there will be a point between the
‘E’ and the error code in the display. The point is not shown when the error is generated by the main
processor. Thus ‘E10’ is generated by the main processor and ‘E.10’ by the safety processor.
The error codes mean the same thing.
4.2 Error handling
This chapter describes the possible error messages and how these error messages can be
interpreted, resolved and reset.
The following concepts require some explanation:
The following faults can be generated:
Priority: This indicates the priority of the fault.
When more than one fault is generated, the fault with the highest priority is
shown in the display.
Mode: This indicates the position of the mode switch in which the fault was recognised.
Error code E01
Type of error Control error
Error message Software inconsistency error
Description Occurs when all controls are out and the main relay is still switched on after 3
seconds. The error indicates that 'somewhere' in the control a wrong decision
has been made.
Priority Highest
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