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Rev. 1 | 01/2020 | MS Safety Module | © 2020 | Comepi srl
EN
2. Safety
2.1. Functional safety
The EC machinery directive stipulates that machinery should not pose a danger (risk assessment in accordance with EN
ISO 12100). Given that there is no such thing as zero risk in technology, the aim is to achieve an acceptably low level
of risk. If safety is dependent on control systems, these must be designed so that the probability of functional faults is
suciently low.
To meet this requirement, the user can apply the harmonized standards like EN ISO 13849-1.
Before using a MS1 module it is necessary to perform a safety assessment in accordance with the Machinery Directive.
Functional safety is guaranteed for the product as a single component. However, this does not guarantee the functional
safety of the overall system. In order to achieve the required safety level for the overall system, the safety requirements fo r
the plant/machine must be dened, and then how these requirements must be implemented.
MS1 modules are built to the following safety levels: PL e, Cat. 4, in accordance with the EN ISO 13849-1. However, the
denitive PL of the application will depend on the number of safety components, their parameters and the connections that
are made, as per the risk analysis.
An in-depth risk analysis must be performed to determine the appropriate safety level for each specic application, on the
basis of all the applicable standards.
Installation of the MS1 module is the sole responsibility of the installer or the user.
The device must be installed in accordance with the specic risk analysis of the application and all the applicable
standards.
Comepi is not responsible for these operations or for any risks in connection with them. Reference should be made
to the manual and to the relative product and/or application standards to ensure correct use of any devices connected to
the MS1 module within the specic application.
The ambient temperature where the system is installed must be compatible with the operating temperature parameters
stated on the product label and in the specications.
For all matters concerning safety, if necessary contact your country’s ocial safety authority or trade association.
2.2 Lift Safety Standards
In 2014 The European Committee for Standardization released two new safety standards for the construction of lifts and
for the testing of lift components. Both new standards applied to both passenger and goods lifts.
EN 81-20 denes the technical requirements for the construction of lifts.
EN 81-50 denes design rules, calculations and tests for lift components.
The MS1A31-024 and MS1A20-024 modules are compliant with these Standards (EN 81-20 and EN 81-50).
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