111SVC 440 795 M01001 Logic relayIntended users The logic relay must only be installed and wired up by trainedelectricians or other persons familiar with the installation ofelectrical equipment.Specialist electrical training is needed for commissioning andcreating circuit diagrams. When controlling activecomponents such as motors or pressure cylinders, parts ofthe system can be damaged and persons put at risk if thelogic relay is connected or programmed incorrectly.Proper use The logic relay is a programmable switching and controldevice and is used as a replacement for relay and contactorcontrol circuits. The logic relay must be properly installedbefore use.• The logic relay is designed to be installed in an enclosure,switch cabinet or distribution board. Both the power feedand the signal terminals must be laid and covered so as toprevent accidental contact.• The installation must comply with regulations forelectromagnetic compatibility (EMC).• The power up of the logic relay must not cause anyhazards arising from activated devices, such asunexpected motor startups or power ups.Improper useThe logic relay should not be used as a substitute forsafety-related controls such as burner or crane controls,emergency-stop or two-hand safety controls.
