No. 60027, Issue 4. January 1998
8 Diagnostics
49
8 Diagnostics
SLM diagnostics can be examined from two platforms : from the Flash Codes
displayed by the SLM (and DX Remote), and from the PCD (Programming
Configuration Diagnostic) tool. The PCD can provide more detailed information
about the nature of the fault.
8.1
Troubleshooting
!
The SLM may not run at all, or operate in an unexpected way, if the
programmable parameters are not set up correctly. Using the PCD, examine
all the parameters detailed in section 7 to ensure they are correctly set up for
your application.
!
The side lights may come on while the battery charger is plugged in. This
may be caused by:
1. The Battery Charger may be overcharging or charging at too high a rate.
2. The SLM is between the Battery Charger and the PM and the DXBUS
cables are too long. See section 5.3.2.
3. The PCD parameter High Voltage Roll/b Start may be set too low.
!
Chair starts to veer, but no flash codes are reported.
1. Mechanical slipping of the body or shaft of the steering position sense
potentiometer.
2. Mechanical slipping of the steering assembly.
These may not be severe enough to generate a stepping feedback fault but
will require mechanical adjustment.
8.2 Flash Codes
Any fault condition on the DX system will cause the DX Remote's System Status
LED (generally the Power On indicator) to flash. Flashing occurs in bursts of
flashes separated by a two second pause. The number of flashes in each burst is
referred to as the
Flash Code
and indicates the nature of the fault.