CTI 2500-C100, Инструкция по установке и эксплуатации

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CTI 2500 Installation and Operation Guide V2.8 19
CHAPTER 2 INSTALLATION
The installation of the CTI 2500 Controller consists of the following steps:
1) Reading this Chapter
2) Planning the installation,
3) Unpacking and configuring the module,
4) Physical installation,
5) Connecting cables,
6) Checking the controller operation.
2.1 Installation Planning
2.1.1 Safety Considerations
Before installing the controller, you must identify the personnel hazards that may be created in
the event of a system failure and provide interlocks and safety switches to prevent operation
during a system failure. Refer to the NEMA ICS 3-304 Programmable Control Standards.
WARNING
As a system designer, you should be aware that Control devices can fail in an unsafe condition. Unless you
incorporate proper safeguards, malfunction of the controller or associated devices, such as operator
interface equipment, could cause sudden equipment startup, shutdown, or other unexpected operation.
Such startup or shutdown or unexpected operation could result in death or serious injury to personnel,
and/or damage to equipment.
If you or your company are using CTI controllers with equipment that requires the presence of a person
(such as an operator or attendant), you should be aware of this potential safety hazard and take appropriate
precautions.
The precautions below conform to the National Electrical Manufacturers Association guidelines
for installation of programmable controllers as recommended in the NEMA ICS 3–304
Programmable Control Standards.
ICS 3-304.81 Safety Recommendations:
Consideration should be given to the use of an emergency stop function which is independent of
the programmable controller. Where the operator is exposed to the machinery, such as in
loading or unloading a machine tool, or where the machine cycles automatically, consideration
should be given to the use of an electromechanical override or other redundant means,
independent of the programmable controller, for starting and interrupting the cycle. If provision is
required for changing programs while the equipment is in operation, consideration should be
given to the use of locks or other means of assuring that such changes can be made only by
authorized personnel. These recommendations are intended as safeguards against the failure
of critical components and the effects of such failures or the inadvertent errors that might be
introduced if programs are changed while the equipment is in operation.