GBK60027 DX-SLM Installation Manual Issue 5
8
Diagnostics
SLM diagnostics can be examined from two platforms:
1.
the Flash Codes displayed by the SLM (and DX Remote), and
2.
the Wizard diagnostics tool.
Wizard provides 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 Wizard, examine
all the parameters detailed in section 7 to ensure they are correctly set up for
your application.
•
The sidelights may come on while the battery charger is plugged in. This may be
caused by:
1. The Battery Charger overcharging or charging at too high a rate.
2. The SLM is between the Battery Charger and the Power Module and the
DX BUS cables are too long. See section 5.3.2.
3. The Wizard parameter High Voltage Rollback Start may be set too low.
•
Chair starts to veer, but no flash codes are reported, this may be caused by:
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 steering 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.
The SLM also detects faults, which it then conveys to the DX Remote. Flash codes are
always displayed on the DX System Status LED but in most cases the SLM will also
display a flash code on its Status LED. Some SLM flash codes are just a reflection of the
flash code on the DX Remote, while others give additional information. Refer to the
table following.
Faults that affect the safety of the wheelchair will cause the wheelchair to stop, while
less critical ones will be indicated but allow the wheelchair to continue driving. Some
faults will automatically clear when the fault condition is removed (non-latched) while
others are latched and must be cleared by turning the DX System off and then on
again.
If the suggested action does not remove the fault, contact a Dynamic Sales and
Service Centre (listed at the back of this manual).
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