BECKHOFF KL2502 User Manual

Documentation for

KL2502, KL2512

2-Channel Pulse Width Output Terminals, 24 V

Version: 3.0

DC

Date: 2008-02-12

Table of contents

Table of contents

1 Foreword 1

1.1 Notes on the documentation 1

1.1.1 Liability Conditions 1

1.1.2 Delivery conditions 1

1.1.3 Copyright 1

1.2 Safety Instructions 2

1.2.1 State at Delivery 2

1.2.2 Description of safety symbols 2

2 Product overview 3

2.1 Introduction 3

2.2 Technical data 5

2.3 Description of functions 6

2.4 Operating modes 6

3 Terminal configuration 8

3.1 Register overview 8

3.2 Register description 9

3.2.1 General register description 9

3.2.2 Terminal-specific register description 12

3.3 Register communication 14

3.4 Mapping in the bus coupler 16

3.4.1 Examples 17

4 Annex 19

4.1 Support and Service 19

4.1.1 Beckhoff's branch offices and representatives 19

4.1.2 Beckhoff Headquarters 19

KL2502, KL2512

Foreword

1 Foreword

1.1 Notes on the documentation

This description is only intended for the use of trained specialists in control and automation engineering
who are familiar with the applicable national standards. It is essential that the following notes and
explanations are followed when installing and commissioning these components.

1.1.1 Liability Conditions

The responsible staff must ensure that the application or use of the products described satisfy all the
requirements for safety, including all the relevant laws, regulations, guidelines and standards.

The documentation has been prepared with care. The products described are, however, constantly under
development. For that reason the documentation is not in every case checked for consistency with
performance data, standards or other characteristics. None of the statements of this manual represents a
guarantee (Garantie) in the meaning of § 443 BGB of the German Civil Code or a statement about the
contractually expected fitness for a particular purpose in the meaning of § 434 par. 1 sentence 1 BGB. In
the event that it contains technical or editorial errors, we retain the right to make alterations at any time
and without warning. No claims for the modification of products that have already been supplied may be
made on the basis of the data, diagrams and descriptions in this documentation.

1.1.2 Delivery conditions

In addition, the general delivery conditions of the company Beckhoff Automation GmbH apply.

1.1.3 Copyright

©

This documentation is copyrighted. Any reproduction or third party use of this publication, whether in

whole or in part, without the written permission of Beckhoff Automation GmbH, is forbidden.

KL2502, KL2512 1

Foreword

1.2 Safety Instructions

1.2.1 State at Delivery

All the components are supplied in particular hardware and software configurations appropriate for the
application. Modifications to hardware or software configurations other than those described in the
documentation are not permitted, and nullify the liability of Beckhoff Automation GmbH.

1.2.2 Description of safety symbols

The following safety symbols are used in this documentation. They are intended to alert the reader to the
associated safety instructions..

This symbol is intended to highlight risks for the life or health of personnel.

Danger

This symbol is intended to highlight risks for equipment, materials or the

Attention

i

Note

environment.

This symbol indicates information that contributes to better understanding.

2 KL2502, KL2512

Product overview

2 Product overview

2.1 Introduction

KL2502 - 2-channel pulse width output terminal 24 V

, switching to high potential

DC

The KL2502 output terminal modulates the pulse width of a binary signal, and outputs it electrically
isolated from the K-bus. The mark/space ratio is prescribed by a 16 bit value from the automation unit.
The output stage is protected against overload and short-circuit. The Bus Terminal contains two channels
that indicate their signal state by means of light emitting diodes. The LEDs are driven in time with the
outputs, and show the mark/space ratio by their brightness.

KL2502, KL2512 3

Product overview

KL2512 - 2-channel pulse width output terminal, 24 VDC, switching to negative potential

The KL2512 Bus Terminal enables direct connection of different ohmic loads. The output signal is a
pulse-width modulated voltage. The typical load of an LED group or an incandescent lamp is connected
between the positive side of the supply voltage and the output of the KL2512. Via the fieldbus the output
can be set independently for two channels with a resolution of more than 30,000 steps. The PWM
frequency can be changed. The power transistors switch the ground connection and are galvanically
isolated from the internal K-bus.

4 KL2502, KL2512

Product overview

2.2 Technical data

Technical data KL2502 KL2512

Max. output current (per channel)

Current consumption from K-Bus

Bit width in the process image

Permissible ambient

temperature range

Vibration/Shock resistance

EMC resistance Burst / ESD

Number of outputs
Rated load voltage

switched potential

Load type

Fundamental frequency

Keying ratio 0 ... 100%

Resolution

Electrical isolation

Leakage current

Configuration no address settings, configurations via bus coupler or control

Weight approx.

during operation

during storage

Relative humidity

Installation position

Type of protection

2
24 VDC (20 V ... 29 V)
24 V 0 V
resistive, inductive resistive

0.1 A (short-circuit-proof) 1,0 A
1 ... 20 kHz, 250 Hz default

0 ... 100%

(Ton > 750 ns, T

>500 ns)

off

max. 10 bits
500 V

(K-Bus / field voltage)

rms

18 mA typ.
10 mA typ.
48 I/O: 2 x 16 bits data, 2 x 8 bits control/status

system
50 g
0°C ... +55°C

-25°C ... +85°C
95%, no condensation
conforms to EN 60068-2-6 / EN 60068-2-27, EN 60068-2-29
conforms to EN 61000-6-2 / EN 61000-6-4
any
IP20

KL2502, KL2512 5