17
Regulations and Standards
NX-series Safety Control Unit Instructions Reference Manual (Z931)
Conformance to EC Directives
The NX-series Units comply with EC Directives. To ensure that the machine or device in which the
NX-series Units are used complies with EC Directives, the following precautions must be observed.
• The NX-series Units must be installed within a metallic control cabinet.
• You must meet the following conditions for the DC power supplies that are connected as the Unit
power supplies and I/O power supplies for the NX-series Units.
(a) Use reinforced insulation or double insulation.
(b) Ensure an output hold time of 20 ms min.
(c) Use an SELV power supply that meets the requirements of IEC/EN 60950-1 and EN
50178.
Do not allow the power supply cable length to exceed 3 m.
We recommend that you use the OMRON S8JX-series Power Supplies. EMC standard compli-
ance was confirmed for the recommended Power Supplies.
• NX-series Units that comply with EC Directives also conform to the Common Emission Standard
(EN 61131-2). Radiated emission characteristics (10-m regulations) may vary depending on the
configuration of the control panel used, other devices connected to the control panel, wiring, and
other conditions.
You must therefore confirm that the overall machine or equipment in which the NX-series Units
are used complies with EC Directives.
• This is a Class A product (for industrial environments). In a residential environment, it may cause
radio interference. If radio interference occurs, the user may be required to take appropriate mea-
sures.
International standards EN ISO 13849-1 and EN 62061 demand that process controls be in place for
the creation of safety-related software when building a safety control system that uses Safety Control
Units. The process control must ensure that the software is easy to read, understand, test, and maintain
to avoid system failures during each phase (i.e., general software design, safety circuit system design,
and software upgrades) of the software design lifecycle.
This means that process controls must also be in place for the design and development of safety soft-
ware, such as for equipment and machinery that use function blocks that are provided by the Safety
Control Units.
It is the customer’s responsibility to conform with all standards.
The NX-series Safety Control Units comply with the following UL and CSA standards. The application
conditions for standard compliance are defined. Refer to the
Instruction Sheet
that is provided with
each Unit before application.
Conformance to EN ISO 13849-1 and EN 62061
Conformance to UL and CSA Standards
Summary of Contents for NX-SL series
Page 8: ...CONTENTS 6 NX series Safety Control Unit Instructions Reference Manual Z931 ...
Page 28: ...Sections in this Manual 26 NX series Safety Control Unit Instructions Reference Manual Z931 ...
Page 98: ...2 Standard Functions 2 64 NX series Safety Control Unit Instructions Reference Manual Z931 ...
Page 104: ...2 Standard Functions 2 70 NX series Safety Control Unit Instructions Reference Manual Z931 ...
Page 110: ...2 Standard Functions 2 76 NX series Safety Control Unit Instructions Reference Manual Z931 ...
Page 265: ...I 1 I NX series Safety Control Unit Instructions Reference Manual Z931 Index ...
Page 268: ...I 4 NX series Safety Control Unit Instructions Reference Manual Z931 Index ...
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