GBK60027 DX-SLM Installation Manual Issue 5
3.1
General Features
The SLM has the following general features:
•
Servo output capable of supplying 5 A continuous and 30 A peak to a 24 V
servo actuator.
•
Fully DX BUS compatible.
•
Two identical DX BUS sockets for Daisy Chain connection to the DX System.
•
Powered by a 24 V wheelchair battery via the DX BUS connection, or directly
from the battery for high current applications.
•
Fully programmable for optimum driving performance.
•
Electromagnetically compatible:
-
not susceptible to high levels of RFI
-
emitting low levels of RFI
-
protected against high levels of ESD.
•
Compact case for mounting under the wheelchair seat.
3.2
Safety and Protection Features
The SLM has the following safety and protection features:
•
Motor current limit and current limit timeout set to prevent overheating of
motors.
•
Thermal protection to reduce current limit.
•
Short circuit protection of all inputs and outputs except between motor and
battery negative while driving.
•
Open circuit motor detection when not driving.
•
Driving is inhibited if steering clutch is disengaged.
•
Over voltage, under voltage and reverse battery protected.
•
Detection of broken steering position feedback potentiometer connections or
short circuit of the potentiometers' terminals.
•
Driving inhibit if Steering Module is not connected and responding.
•
Compliance with ISO 7176 requirements.
•
Controlled power down in event of DX BUS disconnection or communication
failure.
•
Hazard lights can be operated by an external switch.
•
Hazard lights will operate automatically if communication with the DX Remote is
lost while turned on.
•
Indicator flash rate will double if a rear indicator bulb has failed (incandescent
lamps only).
•
Sidelights will come on if battery charger is over-charging the batteries or during
regenerative braking if the battery cannot absorb the regenerated power.
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