Safety
Information
Introduction
Product
information
System
design
Mechanical
installation
Electrical
installation
Getting
started
Optimisation
Parameters
Technical
data
Component
sizing
Diagnostics
Unidrive SP Regen Installation Guide
45
Issue Number: 2 www.controltechniques.com
5 Mechanical Installation
This chapter describes the installation of the Regen drive components.
Key features of this chapter include:
•
Regen component dimensions
•
Enclosure sizing and layout
•
Enclosure ventilation
•
Cubicle design with high ambient temperatures
Refer to the
Mechanical Installation sections
in both the
Unidrive SP and
Unidrive SPM User Guides
for drive mechanical information.
5.1 Safety information
5.2 Planning the installation
The following considerations must be made when planning the
installation:
5.2.1 Access
Access must be restricted to authorised 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, please refer to the
Unidrive SP and Unidrive
SPM User Guides
.
5.2.2 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
5.2.3 Cooling
The heat produced by the drive / additional components 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.
For further information, please refer to section 5.5.2
Through hole mounting is possible for all Unidrive SP modules and the
Unidrive SPMC which can reduce cubicle heating and cooling
requirements. Refer to Unidrive SP User Guide and Unidrive SPM User
Guide.
5.2.4 Electrical safety
The installation must be safe under normal and fault conditions.
Electrical installation instructions are given in Chapter 6
.
5.2.5 Fire protection
The drive enclosure is not classified as a fire enclosure. A separate fire
enclosure must be provided.
5.2.6 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. Refer to section 6.4
(Electromagnetic compatibility)
5.2.7 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.
WARNING
WARNING
NOTE
Isolation device
The AC supply must be disconnected from the drive using an
approved isolation device before any cover is removed from
the drive or before any servicing work is performed.
Stored charge
The drive contains capacitors that remain charged to a
potentially lethal voltage after the AC supply has been
disconnected. If the drive has been energised, the AC
supply must be isolated at least ten minutes before work
may continue.
Normally, the capacitors are discharged by an internal
resistor. Under certain, unusual fault conditions, it is possible
that the capacitors may fail to discharge, or be prevented
from being discharged by a voltage applied to the output
terminals. If the drive has failed in a manner that causes the
display to go blank immediately, it is possible the capacitors
will not be discharged. In this case, consult Control
Techniques or their authorised distributor.
WARNING
WARNING
Содержание SP1201
Страница 219: ......
Страница 220: ...0471 0029 02 ...