Beckhoff BC3150 User Manual download pdf (Page 18)

Safety Instructions

16 Fieldbus Components

Installation

The Bus Coupler and all the Bus Terminals can be clipped, with a light press, onto a 35 mm mounting rail. A locking

mechanism prevents the individual housings from being pulled off again. For removal from the mounting rail the

orange colored tension strap releases the latching mechanism, allowing the housing to be pulled off the rail without

any force.

Up to 64 Bus Terminals can be attached to the Bus Coupler on the right hand side. When plugging the components

together, be sure to assemble the housings with groove and tongue against each other. A properly working

connection can not be made by pushing the housings together on the mounting rail. When correctly assembled, no

significant gap can be seen between the attached housings.

Warning

Insertion and removal of Bus Terminals is only permitted when switched off. The

electronics in the Bus Terminals and in the Bus Coupler are protected to a large measure

against damage, but incorrect function and damage cannot be ruled out if they are plugged

in under power.

The right hand part of the Bus Coupler can be compared to a Bus Terminal. Eight connections at the top enable the

connection with solid or fine wires from 0.08 mm² to 2.5 mm². The connection is implemented with the aid of a spring

device. The spring-loaded terminal is opened with a screwdriver or rod, by exerting gentle pressure in the opening

above the terminal. The wire can be inserted into the terminal without any force. The terminal closes automatically

when the pressure is released, holding the wire securely and permanently.

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Beckhoff BC3150 User Manual Page 18