0.2 Electrical hazards
1 The electrical connections must only be provided by a trained electri-
cian as specified, for example, by the regulations EN 50110-1.
Observe local regulations.
2 The frequency converter must only be connected to power supplies
which meet the requirements for functional extra-low voltages with
positive isolation in accordance with IEC 60364-4-41 (or local regula-
tions) (PELV).
3 Lethal voltages are present at the mains connections. Before starting
with any maintenance and service work, de-energise (lockout/tagout)
the product first.
4 Unplug any connectors only when the mains voltage is switched off
and the pump does no longer turn.
5 Unauthorized device conversion and modifications are prohibited for
safety reasons.
6 Hazardous voltages are present within the frequency converter. When
coming into contact with these, death or severeinjurycan result. After
the pump has arrived at standstill, disconnect the frequency converter
from the mains power and prevent it against being switched on inad-
vertently (lockout/tagout) before opening it. Basically there is no reason
why the frequency converter should be opened. There are no user ser-
viceable parts inside.
7 When the connector cable is attached, the outputs at the frequency
converter are not free of voltage.
8 Lay connecting lines so that they cannot be damaged. Protect the
lines against humidity and contact with water. Avoid any heat stress on
the line due to unfavourable laying conditions.
9 Suitably support the connecting lines so that the pumps are not
exposed to any major mechanical stress.
10 Do not expose pump, frequency converter and the connections to
dripping water.Note the information on the IP type of protection.
11 When storing pump, frequency converter and connecting lines in a
humid atmosphere, these can suffer corrosion. Corrosion gives rise to
conductive deposits which in turn can cause short-circuits and reduce
the insulation levels of electrical components
12 Transport pump, frequency converter and connecting cables only in
their original packaging so as to avoid any mechanical damage which
in turn may reduce air gaps and creepage distances.
13 When applying external voltages above 42 V to the connection termi-
nals, observe the applicable VDE safety regulations!
14 Make the electrical connections only after pump and accessories (e.g.
air cooler)have been installed mechanically.
Safety Information
6130000760_002_A1 - 10/2009 - © Oerlikon Leybold Vacuum
WARNING