ThyssenKrupp Flow2 User Manual

2007.03.07Flow2 stairliftTab 06: Systematic fault finding
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Flow subsystems
3.5 The controls
The following figure shows a schematic diagram of the receiver board.
Signals
Guidelines for fault finding
- Multiple controls communicate with the stairlift receiver board. If one of the controls no longer
works, the fault is in the control. If none of them works any longer, the fault is in the stairlift.
- Hold a control close to the antennas on the receiver board. If the control then works, the signal
is weak or the signal is being disrupted.
- Check the batteries in the control.
- Check the direction and the connection of the antennas on the receiver board.
- There are two antennas mounted on the receiver board. Adjust these antennas so that they do
not touch the frame. Shorting to the frame can be a reason for poor communication.
Receiver board Green LED • Flashes if the processor is working.
• Is continuously lit when receiving a valid command.
Red LED • Is continuously lit when receiving an invalid
command.
Fig. 3-5 Control system construction
Main
Micro-
processor
Safety
Micro-
processor
Receiver
IC
Transmit-
ter/
receiver
Receiver board
Main board
Call and
park unit
Armrest control
Attendant con-
trol

ThyssenKrupp Flow2 Specifications

General

Brand	ThyssenKrupp
Model	Flow2
Category	Stairlifts
Language	English