Introduction; Contents Of This Handbook; Important Safety Instructions - Reer MZERO Installation, Use And Maintenance Manual

INTRODUCTION

Contents of this handbook

This handbook describes how to use the MZERO Stand Alone Programmable Safety
Controller; it includes:
• a description of the system
• method of installation
• connections
• signals
• troubleshooting
• use of the MZD configuration SW

Important safety instructions


This safety alert symbol indicates a potential personal safety hazard. Failure to comply with
instructions bearing this symbol could pose a very serious risk to personnel.
➔
This symbol indicates an important instruction.

The MZERO is built to the following safety levels: SIL 3, SILCL 3, PL e, Cat. 4, Type 4 in
accordance with the applicable standards. However, the definitive SIL and 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.

Read the "Applicable Standards" section carefully.

Perform an in-depth risk analysis to determine the appropriate safety level for your specific
application, on the basis of all the applicable standards.

Programming/configuration of the MZERO is the sole responsibility of the installer or user.

The device must be programmed/configured in accordance with the application-specific risk
analysis and all the applicable standards.

Once you have programmed/configured and installed the MZERO and all the relative devices,
run a complete application safety test (see the "TESTING the system" section, page 40).

Always test the complete system whenever new safety components are added
(see the "TESTING the system" page 40).

ReeR is not responsible for these operations or any risks in connection therewith.

Reference should be made to the handbooks and the relative product and/or application
standards to ensure correct use of devices connected to the MZERO within the specific
application.

The ambient temperature in the place where the system is installed must be compatible with
the operating temperature parameters stated on the product label and in the specifications.

For all matters concerning safety, if necessary, contact your country's competent safety
authorities or the competent trade association.
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STAND ALONE PROGRAMMABLE SAFETY CONTROLLER
8541403 • 19/07/2021 • Rev.1