UM0933
Safety and operating instructions
Doc ID 17386 Rev 1
5/16
2
Safety and operating instructions
2.1 General
During assembly and operation the 2.5 kW/135 A welding machine demonstration board
poses several inherent hazards including bare wires and hot surfaces. If the board or its
components are improperly used or installed incorrectly there is a danger of serious
personal injury and damage to property.
All operations involving transportation, installation, and use, as well as maintenance, are to
be carried out by skilled technical personnel (national accident prevention rules must be
observed). For the purposes of these basic safety instructions, “skilled technical personnel”
are considered to be suitably qualified people who are familiar with the installation, use, and
maintenance of power electronic systems.
Warning:
Many sources of serious danger are present on this board.
The board works directly from the mains and the input power
stage is not galvanic insulated. The ground of the
control/power system is not insulated from the mains and
could be a cause of electric shock, burns, or death. Hot
surfaces, capable of causing serious burns, are present on
the board. This board must be used only in a power
laboratory and only by engineers and technicians who are
experienced in power electronics technology and under the
proper protection. STMicroelectronics is not responsible for
the safety of the user or for any damage caused.
2.1.1
2.5 kW/135 A welding machine use
The 2.5 kW/135 A welding system is designed for demonstration purposes only and is not
intended for professional use, industrial manufacturing, or to be used as part of industrial
machinery. It is neither in production nor an industrial project. Conformity to safety rules and
standards needs to be monitored. The technical data, as well as information concerning the
supply conditions, must be taken from the correct documentation and strictly observed.
2.2
2.5 kW/135 A welding machine installation
The installation and cooling of the 2.5 kW/135 A welding machine is in accordance with the
specifications and the targeted application (see
Section 2.2.2: 2.5 kW/135 A welding
●
Excessive strain on the board should be avoided. In particular, no components are to
be bent, or isolating distances altered, during transportation or handling
●
No contact should be made with electronic components and contacts
●
Do not put the heatsinks together in electric contact
●
The heatsinks are not electrically insulated from high voltage potential. There is a
danger of electric shock present.
www.BDTIC.com/ST