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SM-EZMOTION Module Manual www.emersonct.com vii
Safety
Considerations
Safety Information
The SM-EZMOTION module and its associated drive are
intended as components for professional incorporation into
complete equipment or systems. If installed incorrectly the
drive may present a safety hazard. The drive uses high
voltages and currents, carries a high level of stored
electrical energy and is used to control mechanical
equipment that can cause injury.
Close attention is required to the electrical installation,
commissioning and maintenance must be carried out by
personnel who have the necessary training and
experience, They must read this safety information and
User Guide carefully.
Careful consideration must be given to the functions of the
drive and solutions module, which might result in a hazard,
either through their intended functions e.g. auto-start or
through incorrect operation due to a fault or trip e.g. stop/
start, forward/reverse, maximum speed, loss of
communications link.
In any application where a malfunction of the drive or
solutions module could lead to damage, loss or injury, a
risk analysis must be carried out and where necessary
further measures taken to reduce the risk. To ensure
mechanical safety additional safety devices such as
electro-mechanical interlocks may be required. The drive
must not be used in a safety critical application without
high-integrity protection against hazards arising from a
malfunction.
General Information
The manufacturer accepts no liability for any
consequences resulting from inappropriate, negligent of
incorrect installation or adjustment of the optional
operation parameters of the equipment or from
mismatching the variable speed drive (drive) with the
motor.
The contents of this guide are believed to be correct at the
time of printing. In the interests of a commitment to a policy
of continuous development and improvement, the
manufacturer reserves the right to change the specification
of the product or its performance, of the contents of this
guide, without notice.
All rights reserved. No parts of this guide may be
reproduced or transmitted in any form of by any means,
electrical or mechanical including photocopying, recording
or by an information storage or retrieval system, without
permission in writing from the publisher.
Drive software version
This product is supplied with the latest version of
user-interface and machine control software. If this product
is to be used on a new or existing system with other drives,
there may be some differences between their software and
the software in this product. These differences may cause
this product to function differently. This may also apply to
drives returned from a Control Techniques Service Centre.
If there is any doubt, contact a Control Techniques Drive
Centre.
Safety of Machinery
Within the European Union all machinery in which this
product is used must comply with Directive 89/392/EEC,
Safety of Machinery.
The product has been designed and tested to a high
standard, and failures are very unlikely. However the level
of integrity offered by the product’s control function – for
example stop/start, forward/reverse and maximum speed –
is not sufficient for use in safety-critical applications without
additional independent channels of protection. All
applications where malfunction could cause injury or loss
of life must be subject to a risk assessment, and further
protection provided where needed.
General warning
Failure to follow safe installation guidelines can cause
death or serious injury. The voltages used in this unit can
cause severe electric shock and/or burns, and could be
lethal. Extreme care is necessary at all times when
working with or adjacent to this equipment. The
installation must comply with all relevant safety
legislation in the country of use.
AC supply isolation device
The AC supply must be removed from the drive using an
approved isolation device or disconnect before any
servicing work is performed, other than adjustments to
the settings or parameters specified in the manual. The
drive contains capacitors which remain charged to a
potentially lethal voltage after the supply has been
removed. Allow at least 6 minutes for the Epsilon 205, 3
minutes for Epsilon 202/203 and 30 seconds for E Series
drives after removing the supply before carrying out any
work which may involve contact with electrical
connections to the drive.
Products connected by plug and socket
A special hazard may exist where the drive is
incorporated into a product which is connected to the AC
supply by a plug and socket. When unplugged, the pins of
the plug may be connected to the drive input, which is
only separated from the charge stored in the bus capacitor
by semiconductor devices. To avoid any possibility of
electric shock from the pins, if they are accessible, a
means must be provided for automatically disconnecting
the plug from the drive (e.g., a latching contactor).
Grounding (Earthing, equipotential bonding)
The drive must be grounded by a conductor sufficient to
carry all possible fault current in the event of a fault. The
ground connections shown in the manual must be
followed.
Fuses
Fuses protection must be provided at the input in
accordance with the instructions in the manual.
Isolation of control circuits
The installer must ensure that the external control circuits