NORDAC ON / ON+ (SK 3xxP) – Manual with installation instructions
14 BU 0800 en-4521
2. Qualified specialist personnel
Within the meaning of this basic safety information, qualified specialist personnel are persons who are
familiar with the installation, assembly, commissioning and operation of the product and who have the
qualifications appropriate to their work.
In addition, the device and the accessories associated with it must only be installed and commissioned
by a qualified electrician. A qualified electrician is a person who, because of his/her technical training
and experience, has sufficient knowledge with regard to
• switching on, switching off, disconnection, earthing and labelling of electric circuits and devices,
• correct maintenance and use of protective devices according to specified safety standards.
3. Correct purpose of use – general
The frequency inverters are devices for industrial and commercial systems used for the operation of
three-phase asynchronous motors with squirrel-cage rotors and Permanent Magnet Synchronous
Motors – PMSM. These motors must be suitable for operation with frequency inverters, other loads
must not be connected to the devices.
The devices are components intended for installation in electrical systems or machines.
Technical data and information for connection conditions can be found on the rating plate and in the
documentation, and must be complied with.
The devices may only be used for safety functions which are described and explicitly approved.
CE-labelled devices fulfil the requirements of the Low Voltage Directive 2014/35/EU. The stated
harmonized standards for the devices are used in the declaration of conformity.
a. Supplement: Correct purpose of use within the European Union
When installed in machines, the devices must not be commissioned (i.e. commencement of
proper use) until it has been ensured that the machine fulfils the provisions of EC Directive
2006/42/EC (Machinery Directive); EN 60204-1 must also be complied with.
Commissioning (i.e. start-up of proper use) is only permitted if the EMC directive (2014/30/EU)
has been complied with.
b. Supplement: Correct purpose of use outside the European Union
The local conditions of the operator for the installation and commissioning of the device must be
complied with at the usage location (see also "a. Supplement: Correct purpose of use within the
European Union").
4. Phases of life
Transport, storage
The information in the manual regarding transport, storage and correct handling must be complied
with.
The permissible mechanical and climatic ambient conditions (see technical data in the manual for the
device) must be complied with.
If necessary, suitable, adequately dimensioned means of transport (e.g. lifting gear, rope guides) must
be used.
Installation and assembly
The installation and cooling of the device must be implemented according to the regulations in the
corresponding documentation. The permissible mechanical and climatic ambient conditions (see
technical data in the manual for the device) must be complied with.
The device must be protected against impermissible loads. In particular, components must not be
deformed and/or insulation distances must not be changed. Touching of electronic components and
contacts must be avoided.