Beckhoff M3120 Bedienungsanleitung PDF herunterladen (Seite 10)

M3120 Incremental encoder 4x Beckhoff II/O-Lightbus

Page 10 of 14 Version 1.1 Date 20.10.94

4. Installation

The module M3120 is connected to the fibre optic ring using fibre optic connectors (Beckhoff

Z1000). The maximum length of the FO cable, leading to the neighbouring boxes, should not

be more then 600 m for glass fibre or 45 m for other fibres. These values are only valid if for

bending the cable a radius of at least 30 mm is used. If there are no glass fibres used, no

special tools are needed for installation of the plugs.

The module M3120 is installed dezentralized from the machine. Sensors and actors are

connected to the box directly by D-SUB connectors (connector X20, X30, X40, X50).

You can take the power supply for a 5 V or 15 V incremental encoder directly from this

S-SUB connectors.

The LEDs show the status of the module.

Configuration

You can select the times of evaluation over bridges to GND inside the D-SUB connector:

EE1 EE0 evaluation

bridge to

GND

bridge to

GND

1 time

bridge to

GND

open,

no bridge

2 times

open,

no bridge

bridge to

GND

4 times

open,

no bridge

open,

no bridge

In case an encoder with single outputs is to be connected, the input "Kom" must be connected

to GND (inside the D-SUB connector X20, X30, X40, X50).

In case an encoder eith complementary outputs is to be connected, the bridge "JP" has to be

removed.

Power supply

A two pin plug in connector is used to establish the 24 V DC power supply. (X10)

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Beckhoff M3120 Bedienungsanleitung Seite 10