Diagnostics Optimization CT MODBUS RTU Technical Data
E300 Design Guide
29
Issue Number: 1
3 Mechanical installation
This chapter describes how to use all mechanical details to install the drive. The drive is intended to be installed in an enclosure. Key features of this
chapter include:
•
Installing the drive
•
Option module installation
•
Terminal location and torque settings
3.1 Safety information
3.2 Installation
The following considerations must be made for the installation:
3.2.1 Access
Access must be restricted to authorized personnel only. Safety regulations which apply at the place of use must be complied with.
The IP (Ingress Protection) rating of the drive is installation dependent. For further information refer to
section 3.8 Enclosing standard drive for high
3.2.2 Environmental protection
The drive must be protected from:
•
Moisture, including dripping water or spraying water and condensation. An anti-condensation heater may be required, which must be switched Off
when the drive is running.
•
Contamination with electrically conductive material
•
Contamination with any form of dust which may restrict the fan, or impair airflow over various components
•
Temperature beyond the specified operating and storage ranges
•
Corrosive gasses
During installation it is recommended that the vents on the drive are covered to prevent debris (e.g. wire off-cuts) from entering the drive.
3.2.3 Cooling
The heat produced by the drive must be removed without its specified operating temperature being exceeded. Note that a sealed enclosure gives
much reduced cooling compared with a ventilated one, and may need to be larger and/or use internal air circulating fans.
3.2.4 Electrical safety
The installation must be safe under normal and fault conditions.
3.2.5 Fire protection
The drive enclosure is not classified as a fire enclosure. A separate fire enclosure must be provided which can be metal and/or polymeric. Polymer
must meet requirements which can be summarized for larger enclosures as using materials meeting at least UL 94 class 5VB at the point of minimum
thickness. Air filter assemblies to be at least class V-2.
3.2.6 Electromagnetic compatibility
Variable speed drives are powerful electronic circuits which can cause electromagnetic interference if not installed correctly, with careful attention to
the layout of the wiring. Some simple routine precautions can prevent disturbance to typical industrial control equipment.
If it is necessary to meet strict emission limits, or if it is known that electromagnetically sensitive equipment is located nearby, then full precautions
must be observed. In-built into the drive, is an internal EMC filter, which reduces emissions under certain conditions. If these conditions are exceeded,
then the use of an external EMC filter (located very close to the drives input) may be required.
3.2.7 Hazardous areas
The drive must not be located in a classified hazardous area unless it is installed in an approved enclosure and the installation is certified.
Follow the instructions
The mechanical and electrical installation instructions must be adhered to. Any questions or doubt should be referred to the supplier of the
equipment. It is the responsibility of the owner or user to ensure that the installation of the drive and any external option unit, and the way
in which they are operated and maintained, comply with the requirements of the Health and Safety at Work Act in the United Kingdom or
applicable legislation and regulations and codes of practice in the country in which the equipment is used.
Competence of the installer
The drive must be installed by professional assemblers who are familiar with the requirements for safety and EMC. The assembler is
responsible for ensuring that the end product or system complies with all the relevant laws in the country where it is to be used.
Enclosure
The drive is intended to be mounted in an enclosure which prevents access except by trained and authorized personnel, and which
prevents the ingress of contamination. It is designed for use in an environment classified as pollution degree 2 in accordance with IEC
60664-1. This means that only dry, non-conducting contamination is acceptable.
WARNING
WARNING
WARNING
NOTE
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