Technical information

Safety instructions
1-9
1070 080 059-101 (2001.04) GB
1.7 Electrical connection
DANGEROUS ELECTRICAL VOLTAGE
The mains voltage is associated with many dangers!
Possible consequences of improper handling include death or most
severe injuries (personal injuries) and damage to property. For this
reason, the electrical connection must always be made by an electri-
cal expert in compliance with the valid safety regulations, the mains
voltage and the maximum current consumption of the individual
units of the equipment.
The mains voltage must match the nominal voltage given on the
nameplate of the product!
The equipment must be appropriately fused on the supply side!
Prior to connecting an MF inverter, the following must be strictly
observed:
D Power OFF.
D Provide a safeguard to prevent unintentional reclosing.
D Verify that the system is safely isolated from supply and
de-energized.
D Connect to earth and short circuit.
D Cover up or safeguard all live parts.
DANGEROUS ELECTRICAL VOLTAGE
Handling live parts at mains voltage may result in death, severe
bodily injury or considerable damage to property unless appropriate
precautions are taken.
For this reason, the electrical connection must always be made by
an electrical expert in compliance with the valid safety regulations,
the mains voltage and the maximum current consumption of the indi-
vidual units of the equipment.
Incorrect mains voltage may render the system dangerous or cause
electrical component failure!
Therefore, please ensure the following:
D The mains voltage must match the nominal voltage given on the
nameplate of the product!
D Mains voltage fluctuation or variation from the nominal voltage
must be within the specified tolerance range (see Technical Data).
D The equipment must be appropriately fused on the mains side!
D Before carrying out any work on the mains system or welding
system connections it must be ensured that the MF inverter has
been safely isolated from the supply for at least 5 minutes (capaci-
tor discharge time).
D Proper and well insulated tools must be used for handling electric
connections!