Beckhoff KL6904 User Manual download pdf (Page 3)

Table of contents

KL6904 1

Table of contents

Foreword 3

1.1 Notes on the manual 3

1.1.1

Disclaimer 3

1.1.2

Brands 3

1.1.3

Patents 3

1.1.4

1.1.5

Delivery conditions 3

1.2 Safety instructions 4

1.2.1

Delivery state 4

1.2.2

Operator's obligation to exercise diligence 4

1.2.3

Description of safety symbols 5

1.2.4

Origin of the document 5

1.2.5

Documentation issue status 6

System description 7

2.1 The Beckhoff Bus Terminal system 7

2.1.1

Bus Coupler 8

2.1.2

Bus Terminals 9

2.1.3

K-bus 9

2.1.4

Power contacts 9

2.2 TwinSAFE 10

2.2.1

The I/O construction kit is extended safely 10

2.2.2

Safety concept 10

2.2.3

KL1904, KL2904 – Bus Terminals with 4 fail-safe inputs or outputs 11

2.2.4

KL6904 TwinSAFE logic terminal with 4 fail-safe outputs 11

2.2.5

The fail-safe principle (Fail Stop) 11

Product description 12

3.1 General description 12

3.2 Intended use 13

3.3 Technical data 14

3.4 Safety parameters 15

3.5 Dimensions 15

1 2 3 4 5 6 7 8 ... 51 52

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Beckhoff KL6904 User Manual Page 3

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