Braun RA500 service manual Ramp Terminology, Ramp Components

		RAMP TERMINOLOGY
Ramp Components
Refer to the Terminology Illustra-	Pan Weldment (Housing):	providing an unobstructed an-
tions on pages 2 and 3.	The pan is the aluminum (casing)	tiskid surface for entry and exit
Control Box (Electronic Con-	mounted in the vehicle floor sys-	when the ramp is not in use.
	tem which contains the electrical	Ramp Platform: The ramp
troller): The remote mounted	components that power the ramp
control box provides the logic to	electrical systems. The fixed	platform is the aluminum ramp
manage the inputs in order to	sub-floor cover protects the com-	section assembly featuring a full
produce the desired outputs in	ponents from above. The cover	antiskid surface.
terms of ramp function and per-	is easily removed for access to
formance. In general terms the	drive components. The sub-floor	Chain Drive Assembly: The
control box is commonly referred	provides an antiskid surface for	electric motor driven chain drive
to as the “controller”.	entry and exit when the ramp	deploys and stows the ramp plat-
	is deployed. The RA500 ramp	form assembly.
	stows into the sub floor
Ramp Actions and Functions

Extend: Extend is the action of the platform moving out of the pan weldment (housing).

Retract: Retract is the action of the platform moving in to the pan weldment (housing).

Deploy: Deploy is the action of the ramp assembly extending to ground level when the DEPLOY (OUT) switch is activated.

Stow: Stow is the action of the ramp assembly retracting inward to the stowed position when the STOW (IN) switch is activated.

Note: the one touch control- ler activates both the stow and deploy functions, dependant upon the state of the RA500.

Stowed Position: Stowed position is achieved when the ramp platform assembly is fully retracted (resting fully in the pan weldment).

Manual Override: Manual operation is achieved through the use of a mechanical release. Simply pull the release and use the hand hold provided on the ramp platform to manually deploy or stow the ramp. Minimal physi- cal effort is required to stow and deploy the ramp platform. Slow steady motion results in the least resistance and easy operation. See pages 12 and 13 for detailed manual release procedure.

Obstruction Sensing: An ob- struction sensing feature is stan- dard with the RA500 ramp. The controller monitors the instanta- neous movement of the electric motor, and calculates a “real time” running average of the current. It then compares the programmed peak (maximum vs. instanta- neous) and delta (instantaneous minus running average) limits to determine if an obstruction has been encountered.

Weight Sensing Pad (optional): The platform can be equipped with a weight sensing pad. This optional feature will cause the ramp not to operate in the event that 15 kilograms or more is on the ramp platform.

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