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RiskAssessment

Eliminatethe Risk

Reducethe Risk

ControlSystem

Documentation

IntroductionSelecting components for safety applications

General guide (1)

Components alone will not make a safe system. The design should make reference to the appropriate safety standards and follow those recommendationsbefore attempting to select any component.

• Limits of use of the machinery

• Identification of hazards, nature and location

• Estimation of risks, severity, frequency and probability

• Review machine design to eliminate the risk

• If this is not possible move to next stage

• Through individual and/or collective protection methods

• Identify any safety-related parts of control systems contributing to the risk reduction

• Identify the basic design principles for safety related parts of the control systems to be employed

• Select appropriate components to support the design principles of the control system

• Document the steps and rationale for the design and selection criteria together with a list of the safety standards employed

(1) Further information is given in the Components for Safety applications catalogue, ICC 1479.However, specific reference should first be made to the appropriate safety standards.

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Non-exhaustive list of Safety-related standards

Standards Description

BS EN 292 Safety of Machinery - Basic concepts and general principles for design

BS EN 294 Safety of Machinery - Safety distances to prevent danger zones being reached bythe upper limbs

BS EN 349 Safety of Machinery - Minimum gaps to prevent crushing of parts of the human body

BS EN 418 Safety of Machinery - Emergency stop equipment

BS EN 574 Safety of Machinery - Two-hand control devices

BS EN 811 Safety of Machinery - Safety distances to prevent danger zones being reached bythe lower limbs

BS EN 954 Safety of Machinery - Safety-related parts of control systems

BS EN 1037 Safety of Machinery - Prevention of unexpected start-up

BS EN 1050 Safety of Machinery - Principles for risk assessment

BS EN 1088 Safety of Machinery - Interlocking devices associated with guards

BS EN 60204 Safety of Machinery - Electrical equipment of machines

Classification according to type ofEuropean harmonized standard

The harmonized standards establish technicalspecifications which comply with the minimumsafety requirements defined in the machine safetyregulations.

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Components for safety applicationsPREVENTA safety modules

Selection guide and application details(for full product specification, please refer to

Components for Safety applications catalogue, ICC 1479)

Applications

Modules

Associatedstandards

Machineassemblies

Control system/principes to beemployed within design

Number of circuitsSafety

Signalling

Display

Synchronization timebetween the inputsVoltage on theinput channels

24 V/48 V version

115 V/230 V version

Module type

Module Reference andsupply voltage

t

For Emergency Stop and limit switch monitoring For Emergency Stop, limitswitches

EN 292, EN 418, EN 292, EN 418, EN 292, EN 418,EN 60204-1, EN 60204-1, EN 60204-1,

EN 954-1 - category 3 EN 954-1 - category 4 EN 954-1 - category 4EN 1088 (instantaneous contacts) EN 1088Does not detect shorts EN 954-1 - category 3 EN 574 type III Aacross contact (time delayed contacts)

EN 1088

2 N/O 3 N/O direct opening + 2 N/O2 N/O delayed opening

– 1 N/C –

2 LED 4 LED 4 LED

Not applicable 75 ms (automatic starting) 300 ms (automatic starting)

a 24 V a 24 V a 24 V/48 V

c 115 V/230 V a 48 V/48 V a 48 V/48 V

XPS-AL 5110 c and a 24 V XPS-AT 5110 c and a 24 V XPS-AS 5140 c and a 24 VXPS-AL 3410 c 115 V XPS-AT 3410 c 115 V XPS-AS 5340 c and a 48 VXPS-AL 3710 c 230 V XPS-AT 3710 c 230 V XPS-AS 3440 c 115 V

XPS-AS 3740 c 230 V

XPS-AL XPS-AT XPS-AS

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XPS-AM XPS-AP XPS-ASF XPS-AMF

and two-hand control monitoring For Emergency Stop, limit switch, two-hand control, safety mat and edgemonitoring

EN 292, EN 418, EN 292, EN 418,EN 60204-1, EN 60204-1,

EN 954-1 - category 4 EN 954-1 - category 4EN 1088 EN 1088EN 574 type III A EN 574 type III A

3 N/O 6 N/O 2 N/O 3 N/O

2 solid state 1 N/C + 2 solid state1 N/C 1 N/C for signalling to PLC for signalling to PLC

4 LED 4 LED 4 LED 4 LED

300 ms (automatic starting)

a 24 V/48 V

a 48 V/48 V

XPS-AM 5140 c and a 24 V XPS-AP 5140 c and a 24 V XPS-ASF 5142 c and a 24 V XPS-AMF 5142 c and a 24 VXPS-AM 5340 c and a 48 V XPS-AP 5340 c and a 48 V XPS-ASF 5342 c and a 48 V XPS-AMF 5342 c and a 48 VXPS-AM 3440 c 115 V XPS-AP 3440 c 115 V XPS-ASF 3442 c 115 V XPS-AMF 3442 c 115 VXPS-AM 3740 c 230 V XPS-AP 3740 c 230 V XPS-ASF 3742 c 230 V XPS-AMF 3742 c 230 V

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Components for safety applicationsPREVENTA safety modules

Selection guide (continued)

Applications

Modules

Associatedstandards

Machineassemblies

Control system/principes to beemployed within design

Number of circuitsSafety

Signalling

Display

Synchronization timebetween the inputsVoltage on theinput channels

24 V/48 V version

115 V/230 V version

Module type

Module Reference andsupply voltage

XPS-APF XPS-ECM

+

For Emergency stop, limit switch, For safety contacts extensiontwo-hand control, (for use with XPS-A…)safety mat and edge monitoring

EN 292, EN 418, EN 292, EN 418,EN 60204-1, EN 60204-1,

EN 954-1 - category 4 EN 954-1 - category 4EN 1088EN 574 type III A

6 N/O 4 N/O

1 N/C + 2 solid state for signalling to PLC 1 N/C + 1 solid state for signalling to PLC

4 LED 3 LED

300 ms (automatic starting) –

a 24 V/48 V a 24 V

a 48 V/48 V a 24 V/24 V

XPS-APF 5142 c and a 24 V XPS-ECM 5131 c and a 24 VXPS-APF 5342 c and a 48 V XPS-ECM 3431 c 115 VXPS-APF 3442 c 115 V XPS-ECM 3731 c 230 VXPS-APF 3742 c 230 V

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XPS-ECP XPS-FB XPS-BC

+

For increasing the number of safety contacts For electrical monitoring of limit switches For electrical monitoring of(for use with XPS-A…) combined in pairs two-hand control stations

EN 292, EN418, EN 292, EN 292,EN 60204-1, EN 60204-1, EN 60204-1,

EN 954-1 - category 4 EN 954-1 - category 4 EN 954-1 - category 4EN 1088 EN 574 type III C

8 N/O 3 N/O 2 N/O

1 N/C + 1 solid state for signalling to PLC 1 N/C + 2 solid state for signalling to PLC 1 N/C

3 LED 3 LED 3 LED

1.5 s 500 ms

a 24 V/48 V a 24 V (a 24 V), a 48 V (c 24 V)

a 48 V/48 V a 48 V/48 V

XPS-ECP 5131 c and a 24 V XPS-FB 5111 c and a 24 V XPS-BC 1110 a 24 VXPS-ECP 3431 c 115 V XPS-FB 5311 c and a 48 V XPS-BC 3110 c 24 VXPS-ECP 3731 c 230 V XPS-FB 3411 c 115 V XPS-BC 3410 c 115 V

XPS-FB 3711 c 230 V XPS-BC 3710 c 230 V

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Components for safety applicationsPREVENTA safety modules

Dimensions, mounting

XPS-ALAM1-DP200 rail mounting

XPS-AT, XPS-FB, XPS-AM, XPS-AMF, XPS-AP, XPS-APF, XPS-ECM, XPS-ECP, XPS-NSAM1-DP200 rail mounting

XPS-BC, XPS-AS, XPS-ASFAM1-DP200 rail mounting

GNK-L, GLA, GLC, XPS-PVTAM1-DP200 rail mounting

22,5

78

120

7878

90

78

120

120

78

45

78

100

73

118

5