R.T.A. s.r.l. – HEAEME06 – 03/22 4/19
2. LIMITATIONS, HAZARDS AND CAUTIONS
2.1 - It is not allowed the use in any condition not complying with one or more specific limitations stated in this
manual for electrical, mechanical and environmental quantity or characteristics.
2.2 - HI-MOD ET and HI-MOD ETS series drives must be mounted as in Fig. 1. Do not take out or insert
connectors when the drive is switched on.
2.3 - HI-MOD ET and HI-MOD ETS series drives contain capacitors able to store a certain amount of electrical
energy. As a consequence, in some cases, according with application conditions and supply
dimensioning, a dangerous voltage could remain on the drive, after switching off, for a time greater than
5 seconds. So it is recommended to wait an adequate time before working on the drive.
2.4 - The heatsink can reach high temperatures during normal working conditions. Do not touch this
component for some minutes, after switching off, in order to avoid scald hazard.
2.5 - The drives are suitable to be installed in environment with pollution degree 3, see Chap. 7.1. The
installation in environments in which flammable and/or explosive, and/or chemically aggressive and/or
electrically conductive gas, vapor or dust could be present is strictly forbidden. Avoid also to install near
easily flammable or sensitive to heat materials and components; we recommend to verify that all the
components located in the enclosure are realized using self-extinguishing materials.
2.6 - All products considered in this manual are sub-assemblies without a direct function, foreseen to be
integrated in a more complex machine. Only a professional assembler, expert in the field of motor drives
and in their related problems, can install and put in service this component. It is exclusive responsibility of
the designer of the complete machine or installation in which this component is used to take care of the
safety and reliability of his project. It is forbidden to use this material in application covered from one or
more EEC directives (for instance 2014/30/CE, 2006/42/CE, etc.) before the conformity to those
directives has been declared. Regarding 2014/30/CE directive, see chapter 7.
2.7 - Use for safety related functions is forbidden (EN 60204-1). Moreover, when the application arrangement
is in such way that a drive fault or failure could generate a dangerous condition, external independent
safety protection system must be provided in the machine.
2.8 - In some case of drive failure, dangerous high voltage could appear at logic low voltage input and output
terminals, even if this event is extremely rare. For this reason, from the point of view of evaluation of the
machine safety during a single fault condition, the external control system, connected to these inputs,
has to be considered potentially subjected to high voltage, unless an external separation is provided.
2.9 - EtherCAT commands used to interrupt power to the drive outputs and internal electronic functional
protections switch off the drive output power by means of semiconductor devices; they cannot be used to
interrupt power in some emergency stop function or in any function involving personnel safety.
2.10 - Some versions of Hi-MOD ET have threaded holes that allow the connection of an external source of
inert gas so that the pressure inside the drive become positive with respect to the environment. The
threaded holes must always be connected to specific fittings or plugs, even when not used.
Any different use of that holes is forbidden. RTA does not take any kind of responsibility for property
losses, equipment damages and personnel injuries resulting from use or installation of the product
without the appropriate plugs.
2.11 - In the case of an Ethercat connector is not in use, it is strongly recommended to protect the drive plug by
means of a suitable M12 dust cover.
