Omron DeviceNet DST1 Series Operation Manual page 14

Precautions
This is the Operation Manual for the DST1-series Safety I/O Terminals. Heed the following items during
system construction to ensure that safety-related components are configured in a manner that allows the
system functions to sufficiently operate.
Risk Assessment
The proper use of the safety device described in this Operation Manual as it relates to installation
conditions and mechanical performance and functions is a prerequisite for its use. When selecting or
using this safety device, risk assessment must be conducted with the aim of identifying potential danger
factors in equipment or facilities in which the safety device is to be applied, during the development
stage of the equipment or facilities. Suitable safety devices must be selected under the guidance of a
sufficient risk assessment system. An insufficient risk assessment system may lead to the selection of
unsuitable safety devices.
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Safety Measures
When using this safety device to build systems containing safety-related components for equipment or
facilities, the system must be designed with the full understanding of and conformance to international
standards, such as those listed below, and/or standards in related industries.
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Role of Safety Device
This safety device is provided with safety functions and mechanisms as stipulated in relevant standards,
but suitable designs must be used to allow these functions and mechanisms to operate properly inside
system constructions containing safety-related components. Build systems that enable these functions
and mechanisms to perform properly, based on a full understanding of their operation.
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Installation of Safety Device
The construction and installation of systems with safety-related components for equipment or facilities
must be performed by technicians who have received suitable training.
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Complying with Laws and Regulations
This safety device conforms to the relevant regulations and standards, but make sure that it is used in
compliance with local regulations and standards for the equipment or facilities in which it is applied.
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Observing Precautions for Use
When putting the selected safety device to actual use, heed the specifications and precautions in this
Operation Manual and those in the Instruction Manual that comes with the product. Using the product in
a manner that deviates from these specifications and precautions will lead to unexpected failures in
equipment or devices, and to damages that result from such failures, due to insufficient operating
functions in safety-related components.
Moving or Transferring Devices or Equipment
When moving or transferring devices or equipment, be sure to include this Operation Manual to ensure
that the person to whom the device or equipment is being moved or transferred will be able to operate it
properly.
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WARNING
Typical related international standards: ISO 14121, Safety of Machinery --
Principles of Risk Assessment
Typical related international standards: ISO/DIS 12100, Safety of Machinery --
Basic Concepts and General Principles for Design
IEC 61508, Safety Standard for Safety Instrumented Systems (Functional Safety of
Electrical/Electronic/Programmable Electronic Safety-related Systems)
Typical related international standards: ISO 14119, Safety of Machinery --
Interlocking Devices Associated with Guards -- Principles of Design and Selection
Typical related international standards: ISO/DIS 12100, Safety of Machinery --
Basic Concepts and General Principles for Design
IEC 61508, Safety Standard for Safety Instrumented Systems (Functional Safety of
Electrical/Electronic/Programmable Electronic Safety-related Systems)
Typical related international standards: IEC 60204, Safety of Machinery -- Electrical
Equipment of Machines
Typical related international standards: ISO/DIS 12100 ISO, Safety of Machinery --
Basic Concepts and General Principles for Design IEC 61508, Safety Standard for
Safety Instrumented Systems (Functional Safety of
Electrical/Electronic/Programmable Electronic Safety-related Systems)