User manual

Chapter 5: Installation and Wiring

Hardware User Manual, 4th Edition, Rev. B

5–2

Safety Guidelines

NOTE: Products with CE marks perform their required functions safely and adhere to relevant standards as

specified by CE directives provided they are used according to their intended purpose and that the

instructions in this manual are adhered to. The protection provided by the equipment may be impaired if this

equipment is used in a manner not specified in this manual. A listing of our international affiliates is available

on our Web site at http://www.automationdirect.com.

WARNING: Providing a safe operating environment for personnel and equipment is your responsibility

and should be your primary goal during system planning and installation. Automation systems can fail

and may result in situations that can cause serious injury to personnel or damage to equipment. Do not

rely on the automation system alone to provide a safe operating environment. You should use external

electromechanical devices, such as relays or limit switches, that are independent of the PAC application

to provide protection for any part of the system that may cause personal injury or damage. Every

automation application is different, so there may be special requirements for your particular application.

Make sure you follow all national, state, and local government requirements for the proper installation

and use of your equipment.

Plan for Safety

The best way to provide a safe operating environment is to make personnel and equipment

safety part of the planning process. You should examine every aspect of the system to determine

which areas are critical to operator or machine safety. If you are not familiar with PAC system

installation practices, or your company does not have established installation guidelines, you

should obtain additional information from the following sources.

• NEMA — The National Electrical Manufacturers Association, located in Washington, D.C.,

publishes many different documents that discuss standards for industrial control systems. You can

order these publications directly from NEMA. Some of these include:

ICS 1, General Standards for Industrial Control and Systems

ICS 3, Industrial Systems

ICS 6, Enclosures for Industrial Control Systems

• NEC — The National Electrical Code provides regulations concerning the installation and use of

various types of electrical equipment. Copies of the NEC Handbook can often be obtained from

your local electrical equipment distributor or your local library.

• Local and State Agencies — many local governments and state governments have additional

requirements above and beyond those described in the NEC Handbook. Check with your local

Electrical Inspector or Fire Marshall office for information.