Pepperl+Fuchs VAA-2E2A-KE1P-S/E2 Manuale utente

SAFETY AT WORK

VAA-2E2A-KE1-S/E2,

VAA-2E2A-KE1P-S/E2

Original Operating Instructions

FACTOR AUTOMATION

MANUAL

With regard to the supply of products, the current issue of the following document is ap-

plicable: The General Terms of Delivery for Products and Services of the lectrical Indus-

try, published by the Central Association of the lectrical Industry (Zentralverband

lektrotechnik und lektroindustrie (ZV I) e.V.) in its most recent version as well as the

supplementary clause: " xpanded reservation of proprietorship"

VAA-2 2A-K 1-S/ 2, VAA-2 2A-K 1P-S/ 2

1 Introduction................................................................................. 5

1.1 Content of this Document ................................................................... 5

1.2 Manufacturer ........................................................................................ 5

1.3 Target Group, Personnel...................................................................... 5

1.4 Symbols Used ...................................................................................... 6

2 Product Description ................................................................... 7

2.1 Intended Use ........................................................................................ 7

2.1.1 Non-Secure Outputs .......................................................................... 7

2.2 AS-Interface Safety at Work VAA-2E2A-KE1-S/E2 and VAA-2E2A-

KE1P-S/E2............................................................................................. 7

2.3 Peripheral Requirements..................................................................... 8

2.4 Connections and Displays .................................................................. 8

2.5 Interfaces and Connections................................................................ 9

2.5.1 AS-Interface, Auxiliary nergy ........................................................... 9

2.5.2 Inputs............................................................................................... 10

2.5.3 Outputs ............................................................................................ 10

3 Commissioning......................................................................... 12

3.1 Preparation ......................................................................................... 12

3.2 Configuring the AS-Interface Safety Monitor .................................. 12

3.3 Installation .......................................................................................... 12

3.4 Addressing Modules.......................................................................... 12

3.5 Operational Testing............................................................................ 12

3.6 Operating Mode.................................................................................. 13

3.7 Operation ............................................................................................ 13

4 Maintenance and Repair .......................................................... 14

4.1 Maintenance and Repair.................................................................... 14

5 Technical Data........................................................................... 15

VAA-2 2A-K 1-S/ 2, VAA-2 2A-K 1P-S/ 2

6 Appendix A................................................................................ 18

6.1 Application Examples ........................................................................18

6.2 Category 2...........................................................................................18

6.3 Category 3...........................................................................................18

6.4 Category 4...........................................................................................21

7 Appendix B................................................................................ 24

7.1 Summary of the Requirements for Categories

in Accordance with EN 954-1/ISO 13849-1 ......................................24

7.2 Certificates ..........................................................................................25

7.3 Probability of Failure on Demand Calculation .................................25

7.4 Transfer Time of the Safety-Relevant Information...........................25

VAA-2 2A-K 1-S/ 2, VAA-2 2A-K 1P-S/ 2

Introduction

130863 2019-04

1 Introduction

1.1 Content of this Document

This document contains information required to use the product in the relevant phases of the

product life cycle. This may include information on the following:

■

Product identification

■

Delivery, transport, and storage

■

Mounting and installation

■

Commissioning and operation

■

Maintenance and repair

■

Troubleshooting

■

Dismounting

■

Disposal

The documentation comprises the following parts:

■

This document

■

Datasheet

In addition, the documentation may comprise the following parts, if applicable:

■

U-type examination certificate

■

U declaration of conformity

■

Attestation of conformity

■

Certificates

■

Control drawings

■

Instruction manual

■

Other documents

1.2 Manufacturer

1.3 Target Group, Personnel

Responsibility for planning, assembly, commissioning, operation, maintenance, and

dismounting lies with the plant operator.

Only appropriately trained and qualified personnel may carry out mounting, installation,

commissioning, operation, maintenance, and dismounting of the product. The personnel must

have read and understood the instruction manual and the further documentation.

Prior to using the product make yourself familiar with it. Read the document carefully.

Note!

For full information on the product, refer to the further documentation on the Internet at

www.pepperl-fuchs.com.

Pepperl+Fuchs GmbH

Lilienthalstraße 200, 68307 Mannheim, Germany

Internet: www.pepperl-fuchs.com

130863 2019-04

VAA-2 2A-K 1-S/ 2, VAA-2 2A-K 1P-S/ 2

Introduction

1.4 Symbols Used

This document contains symbols for the identification of warning messages and of informative

messages.

Warning Messages

You will find warning messages, whenever dangers may arise from your actions. It is mandatory

that you observe these warning messages for your personal safety and in order to avoid

property damage.

Depending on the risk level, the warning messages are displayed in descending order as

follows:

Informative Symbols

Action

This symbol indicates a paragraph with instructions. You are prompted to perform an action or

a sequence of actions.

Danger!

This symbol indicates an imminent danger.

Non-observance will result in personal injury or death.

Warning!

This symbol indicates a possible fault or danger.

Non-observance may cause personal injury or serious property damage.

Caution!

This symbol indicates a possible fault.

Non-observance could interrupt the device and any connected systems and plants, or result in

their complete failure.

Note!

This symbol brings important information to your attention.

VAA-2 2A-K 1-S/ 2, VAA-2 2A-K 1P-S/ 2

Product Description

130863 2019-04

2 Product Description

2.1 Intended Use

When used as intended, the AS-Interface safety module allows the operation of sensor-

controlled personal protective equipment up to category 4 and PL e as per ISO 13849 or up to

SIL 3 as per N/I C 61508 and N/I C 62061 in combination with an appropriately

programmed AS-Interface safety monitor. The safety level of the application is determined

either via a risk analysis, e.g., in accordance with N 1050, or is taken from a C standard.

2.1.1 Non-secure outputs

2.2 AS-Interface Safety at Work VAA-2 2A-K 1-S/ 2 and VAA-2 2A-K 1P-

S/ 2

The VAA-2 2A-K 1*-S/ 2 is an AS-Interface safety module with two safety-related inputs and

two outputs. A dual-channel mechanical switch can be connected to the two safety-related

inputs, or a single-channel mechanical switch can be connected to each input. The outputs are

conventional electronic outputs that can have a total load of 1 A (max 0.5 A per output). The

housing is only 22.5 mm wide and 48.5 mm tall and takes up little space in the switch cabinet.

The module is mounted by snapping it onto the 35 mm DIN rail in compliance with N 50022.

An addressing socket is integrated into the module.

The connection is made via plug-in terminals. A four-way (black) terminal block is used for the

inputs. The AS-Interface is connected via a two-way (yellow) terminal block. ach channel has

an L D mounted on the top side of the module to display the current switching status. There is

an L D for monitoring AS-Interface communication and for displaying that the module has the

address 0.

Warning!

The outputs must not be used for safety-related functions.

130863 2019-04

VAA-2 2A-K 1-S/ 2, VAA-2 2A-K 1P-S/ 2

Product Description

If single-channel force-guided mechanical switches are connected, the module can be

upgraded to Performance Level c in accordance with N ISO 13849-1 if wired appropriately

and if the switch is selected accordingly. If a dual-channel force-guided mechanical switch is

connected, the module can be upgraded to Performance Level e in accordance with

N ISO 13849-1 if wired appropriately and if the switch is selected accordingly. As per the

approval in accordance with I C 61508 and I C 62061, a Safety Integrity Level of up to SIL 3

can be reached. Both module inputs are occupied. The two channels belonging to the

mechanical switch are monitored for crossed circuits. ach L D displays the voltage of the AS-

Interface and the external power supply.

2.3 Peripheral Requirements

Safety Monitor Requirements

The module must only be used as a safety-related slave in an AS-Interface segment with the

corresponding AS-Interface safety monitor as intended. The AS-Interface safety monitor must

meet the requirements of the "Specification of Safe AS-Interface Transmission" system

specification (version 2.01) dated 05/12/2000.

To evaluate a safety-related function in accordance with a safety standard, all components

found in the function must be evaluated in accordance with this standard.

The wiring and programming of the safety monitor determine whether or not the required safety

function performs correctly. This also applies to the required safety response after a code fault

or failure (see also safety monitor documentation). The safety function (including all safety-

related sensors) must be checked prior to initial commissioning. The safety monitor PL

category or SIL must, as a minimum, comply with the PL category or SIL required by the

application.

Cabling Requirements

The requirements set out in N/I C 60204-1 or similar must always be observed. The

requirements for the external cabling and selection of connected sensors are based both on

the level of functionality to be achieved, and on the required category (ISO 13849-1, N/I C

61508, or N/I C 62061).

Switches or Mechanical Contacts

The switches must be positive opening. Combinations of switches that provide an equivalent

level of safety (fault behavior analysis) can be used.

2.4 Connections and Displays

Figure 2.1

+ +

FAULT

AUX

PWR

ADDR

OUT

AS-i AS-i

0 1 02

AUX AUX

0 2

S+1 S-1 S+2 S-2

VAA-2 2A-K 1-S/ 2, VAA-2 2A-K 1P-S/ 2

Product Description

130863 2019-04

Safety related inputs

Outputs

Supply

Displays

2.5 Interfaces and Connections

2.5.1 AS-Interface, Auxiliary energy

In case of the K 1-series all interfaces are connected via removable terminals. Thus also AS-

Interface and auxiliary energy. The cable has to meet the minimum requirements for AS-

Interface (e.g. AS-Interface flat band cable, VAZ-FK-S-Y for AS-Interface and VAZ-FK-S-BK

for auxiliary energy).

Designation Description

S1+ Mechanical switch 1+

S1- Mechanical switch 1-

S2+ Mechanical switch 2+

S2- Mechanical switch 2-

Designation Description

O1 Output 1+

O-1 Output 1-

O2 Output 2+

O-2 Output 2-

Designation Description

ASi+ AS-Interface +

ASi- AS-Interface -

AUX+ Auxiliary power U

Aux

AUX- Auxiliary power U

Aux

Designation Description

L D FAULT rror display; L D red

red: communication error or address is 0

red flashing: Output supply overload

L D PWR AS-Interface voltage; L D green

L D AUX xt. auxiliary voltage U

AUX

; L D green

L D IN Switching state (input); 2 L D yellow

L D OUT Switching state (output); 2 L D yellow

130863 2019-04

VAA-2 2A-K 1-S/ 2, VAA-2 2A-K 1P-S/ 2

Product Description

2.5.2 Inputs

General

The switches are connected to removable terminals. One or more mechanical switches can be

connected in series per channel.

Figure 2.2 = 2 mechanical switches (or one two-channel switch)

= 1 mechanical switch

If only one single-channel switch is to be used, input 1 should be used in this case. If input 2 is

not connected, it must be bridged.

Safety Category

The module contains two independent and redundant input channels that individually meet the

requirements of category 4 in accordance with ISO 13849-1.

Crossed Circuit Monitoring

The inputs are monitored for inter-crossed circuits. The crossed circuit monitoring function is

able to detect low-resistance crossed circuits between the two inputs caused by a metallic

connection.

2.5.3 Outputs

The outputs are designed according to the AS-Interface standard. These are switched to

positive potential (PNP technology).

The outputs can be operated in two modes:

1. The outputs are controlled directly by the corresponding data bits of the AS-Interface mas-

ter.

2. The output signals of the AS-Interface master are linked with the secure inputs. The out-

puts are turned on if the master turns them on or if the inputs are in a secure state.

This operating mode is used to control signal lights that must display the state of the inputs

without the master being involved.

1 2

Short circuit jumper

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