BBH SCU Series, Installation Manual

Page: 22 / 303

3
Safety
HB-37500-810-11-16F-EN SCU Installation Manual - Master and Slaves - SARC Page 22 of 303
Status: 09.06.2022
Man
3.5. Intended use
The modules of the SCU series are programmable safety controllers for
the production of safety functions, safe monitoring and switch-off of
drives. The devices are intended for decentralized use in a network:
▪ in Emergency Stop devices,
▪ as safety related components according to Machine Directive
2006/42/EG,
▪ as PES for zur risk reduction according to IEC 61508,
▪ in safety circuits EN 60204-1 u. EN 60204-32,
▪ as PES for functional safety according to IEC 62061,
▪ as SRP/CS according to EN ISO 13849,
▪
as device for the manufacturing of security devices according
to EN 61800-5-2,
▪ as logic units for signal conversion and for signal processing in
two hand controls according to EN 574.

The SCU series may only be used for the applications specified in the
technical description and in compliance with the described general technical
conditions.

The SCU series may only be operated in conjunction with recommended
or approved third-party devices.

The SCU series has been developed, manufactured, tested and
documented in compliance with the relevant directives and standards.
Therefore, if the described instructions and safety-related notes are
observed, the product does not normally present any hazards with regard
to damage to property or to the health of persons.
The SCU assemblies are safety-related components in accordance with
appendix IV of the EU directive 2006/42/EG (Machine Directive). They have
been developed, engineered and manufactured in accordance with the above
directive and the EC directive 2014/30/EU (EMC Directive)
– cf. EC Declaration
of Conformity in the appendix.
NOTICE SCU modules without an UL approval / a CSA approval can be used in the USA
and Canada if the following conditions are observed:

The switch voltage of the output relays must be limited to max. 24 V.

For power supply of the SCU assemblies and of their inputs and their
outputs, a power pack must be used. The power pack used must comply
with the CLASS 2 requirements according to UL 1310.
Under these conditions, an UL approval / a CSA approval are not necessary,
and the SCU assembly can in be used in switching systems according to UL
508A