2007.03.07 Flow2 stairlift Tab 06: Systematic fault finding
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Flow subsystems
3.2 The drive system
The stairlift drive consists of an assembly of electronics, cables, motors and sensors. The following
figure shows a schematic of this.
Guidelines for fault finding
The drive system is controlled and monitored by the software. Errors are indicated in the form of an
error code on the service board display. See Chapter 4 for the meanings of the error codes and
suggestions for resolving the fault.
Rail data
table
Main
Micro-
processor
Safety
Micro-
processor
IC drive
Power
FETs
Drive
motor
Encoder
Brake
Motor module
Power module
Batteries
Main board
Overspeed
governor
Fig. 3-2 Drive system
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