Lenze ELCAMZIxxx4SNNPSNN (LCU122) - Manual (Page 106)

Safety engineering
Basics
Safety instructions
7

106 EDSLCMX3024-SPS EN 5.0
7.1.4 Safety instructions
Please observe the following safety instructions and application notes to preserve the
certified safety engineering features and to ensure trouble-free and safe operation.
Installation/commissioning

Danger!
Danger to life through improper installation
Improper installation of the safety engineering systems can cause an
uncontrolled restart of the drives.
Possible consequences:
ƒ Death or severe injuries
Protective measures:
ƒ Safety engineering systems may only be installed and commissioned by
qualified and skilled personnel.
ƒ All control components (switches, relays, PLC, ...) and the control cabinet
must comply with the requirements of EN 954-1 and ISO 13849-2. This
includes i.a.:
– Switches, relays in IP54 enclosure.
– Control cabinet in IP54 enclosure.
– Please refer to EN 954-1 and ISO 13849-2 for all further requirements.
ƒ It is essential to use insulated wire end ferrules for wiring.
ƒ If safety-relevant cables are installed outside the control cabinet, they have
to be protected, e.g. by means of a cable duct:
– Ensure that there are no short circuits.
– For further measures see ISO 13849-2.
ƒ If an external force acts upon the drive axes, additional brakes are required.
Please observe that hanging loads are subject to the force of gravity!