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R.T.A. s.r.l. - Via E. Mattei – Fraz. Divisa 27020 Marcignago (PV) – Tel. +39.0382.929.855 - Fax +39.0382.929.150 – http://www.rta.it
© R.T.A. s.r.l. ANDCME04 – 09/21
NOTICES, HAZARDS AND CAUTIONS
•
A-NDC series drives are BDM (Basic Drive Module), as defined in the EN 61800-3. They are sub-
assemblies without a direct function, foreseen to be integrated in a more complex machine or
installation by a professional assembler, expert in the field of motor drives and in their related
problems. Only a professional assembler can install and put in service this component.
•
CE marking: Products here described conform to 2006/95/CE, 2004/108/CE and further
modifications, when correctly installed and used.
•
They are intended to drive stepping motors with two phases, base step angle 1.8 degree and
phase inductance between 1.0 and 12.0 mH. Use with different kind of motor is not allowed.
•
Protection degree IP00 for A-NDC 04, A-NDC 04.V, A-NDC 06, A-NDC 06.V models: Use only
inside a protective enclosure able to avoid electric shock hazard. Main setting, connector
insertion or extraction has to be done with drive switched off.
•
Protection degree IP20 for A-NDC 94, A-NDC 96 and A-NDC 96.S: this means that they must be
located inside a protective enclosure meeting requirements of standards applicable in the
specific application in which they are used.
•
Settings and connector insertion or extraction has do be done at drive switched off.
•
The drive generates some amount of heat. Take care of this in considering the total amount of
heat generated in the enclosure in which the drives are located. In order to make easier air
circulation in the drive, install the drive vertically (not turned upside down) with at least 5 cm of
free space over and under the drive and 1 cm to the left and the right of the drive. Do not
obstruct air gratings. The maximum surrounding air temperature must be lower than 40 °C
[
Maximum surrounding air temperature: 40 °C
]
•
Installation is allowed in local environment with pollution degree N° 2 [
Use in Pollution degree 2
Environment
]. Installation in presence of explosive and/or flammable and/or chemically
aggressive and/or electrically conductive gas, vapour or dust and installation near easily
flammable or heat sensitive materials is strictly forbidden.
•
Use for safety related functions is forbidden (EN 60204-1); it is also forbidden any application
arrangement in which a driver fault or failure could generate an hazardous condition. It is
forbidden to use this material in application covered from one or more EEC directive before the
conformity to those directives has been declared.
•
Residual voltages: depending on supply type (assembled by user) and application conditions, a
waiting time greater than 5 seconds after switching off could be necessary.
•
Scald hazard: due to the presence of some components operating at high temperature (120°C),
wait some minutes after switching off in order to avoid scalds.
•
Driver could generate electromagnetic interference (both radiated and conducted) if instruction
about installation directions are not respected (chap. 6). We remember however that compliance
to 2004/108/CE directive has to be tested on whole machine in normal working condition.
•
Even if logic input and output signals connections are optically insulated, dangerous high
voltage could appear on those connections in case of drive failure. For this reason, regarding to
machine safety, you have to consider that a voltage equal to V
DC
could be present at the I/O in
case of failure.
•
Insulation of the drive parts is dimensioned for pollution degree N° 2 and for overvoltage class
II
. The drive can’t be connected to the main and it has to be power supplied by a power supply
equipped with transformer main insulation.
