Braun RA500 Bedienungsanleitung PDF herunterladen (Seite 12)

Page 10

RAMP OPERATION

Ramp Power Operation

Ramp Operating Instructions

address the required controller

inputs and the corresponding

ramp functions. Instructions for

customer specic display panels

and interlock options will not be

addressed due to the bound-

less variations in application and

installation of the ramp. Manual

Operating Instructions are ad-

dressed in the event of power or

equipment failure.

Before Operating Ramp: Al-

ways park the vehicle on a level

area, away from vehicle trafc.

Place the vehicle transmission

in “Park” and engage the park or

emergency brake.

Customer Interlock: The ramp

controller requires either a ground

(-) or (+) signal be supplied, one

of these signals is required but

not both. This signal interlocks

the ramp functions. If this inter-

lock signal is not present, the

controller will not provide any

outputs necessary to operate the

ramp. If the interlock signal is

lost during ramp operation, the

platform assembly will stop, and

the controller will not function any

further until the interlock signal is

present once again.

Operator Input Switches: The

RA500 Ramp electronic controller

provides fully automatic operation

of all ramp functions. Ramp func-

tions can be performed from any

position the platform assembly

happens to be in at the time the

operator input switch is activated.

The ramp is protected by a stan-

dard obstruction sensing feature.

One-Touch Operation: In one-

touch mode, the ramp will deploy

if fully stowed. If the ramp is in

any other position the ramp will

stow. The ramp function will con-

tinue until the switch is pressed

again (indicating stop immedi-

ately), the unit reaches the end of

travel, or a “halt condition” occurs

(see Halt Conditions).

Two-Way Toggle Operation:

In two-way toggle mode, there

are separate switches for de-

ploy and stow functions. One of

the switches must be pressed

and held or locked into position

(continuous input signal required)

for the RA500 ramp to oper-

ate. The ramp will move in the

selected direction until the switch

is released (signal interrupted),

the unit reaches the end of the

travel, or a “halt condition” occurs

(details follow).

Halt Conditions: Several condi-

tions can cause a normal se-

quence to terminate (stop):

• Obstructions (details below)

• Customer Interlock signal lost

(see Customer Interlock)

• Optional platform weight sens-

ing pad senses a load equal to

or greater than 15 kilograms

(details below)

• End of travel reached

Obstructions: The controller

performs obstruction sensing

(see RA500 ramp Terminology:

Obstruction Sensing) on all stow

and deploy movements of the

ramp. The selected obstruction

response mode congured in

the controller during installation,

either immediately stops the pres-

ent movement when obstructed,

or stops and then reverses

movement for 1 second. Once an

obstruction has halted the ramp,

the controller automatically resets

and awaits operator input for

further operation.

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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