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Directives and standards
UL and cUL- Conformance
UL (cUL)-certified servo amplifiers (Underwriters Laboratories Inc.) fulfil the relevant U.S. and Canadian stan-
dard (in this case UL 840 and UL 508C).
This standard describes the fulfilment by design of minimum requirements for electrically operated power con-
version equipment, such as frequency converters and servo amplifiers, which is intended to eliminate the risk
of fire, electric shock, or injury to persons, being caused by such equipment. The technical conformance with
the U.S. and Canadian standard is determined by an independent UL (cUL) inspector through the type testing
and regular check-ups.
Apart from the notes on installation and safety in the documentation, the customer does not have to observe
any other points in direct connection with the UL (cUL)-certification of the equipment.
UL 508C
UL 508C describes the fulfilment by design of minimum requirements for electrically operated power conversi -
on equipment, such as frequency converters and servo amplifiers, which is intended to eliminate the risk of fire
being caused by such equipment.
UL 840
UL 840 describes the fulfilment by design of air and insulation creepage spacings for electrical equipment and
printed circuit boards.
8
03/04
®
SERVOSTAR
601...620 Installation Manual
Kollmorgen
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