ABB ARR600 User Manual page 6

Safety information
Dangerous voltages can occur on the connectors, even though the
auxiliary voltage has been disconnected.
Non-observance can result in death, personal injury or substantial
property damage.
Only a competent electrician is allowed to carry out the electrical
installation.
National and local electrical safety regulations must always be
followed.
This product is not fault-tolerant and is not designed, manufactured
or intended for use or resale as on-line control equipment or as part
of such equipment in any hazardous environment requiring fail-safe
performance, such as in the operation of nuclear facilities, aircraft
navigation or communication systems, air traffic control, direct life
support machines, or weapons systems, in which the failure of the
hardware or software described in this manual could lead directly to
death, personal injury, or severe physical or environmental damage.
To prevent damage both the product and any terminal devices must
always be switched off before connecting or disconnecting any
cables. It should be ascertained that different devices used have the
same ground potential. The output voltage of the power supply
should be checked before connecting any power cables.
The devices mentioned in this manual are to be used only according
to the instructions described in this manual. Faultless and safe
operation of the devices can be guaranteed only if the transport,
storage, operation and handling of the devices is appropriate. This
also applies to the maintenance of the products.