Important Notes - Lenze 8400 StateLine C Hardware Manual

10 Safety engineering

Important notes

10.2 Important notes
Application as directed
The controllers of the 8400 series that are equipped with drive−based safety must not be
modified by the user. This concerns the unauthorised exchange or removal of the
drive−based safety.
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Danger!
Danger to life through improper installation
Improper installation of the safety engineering systems can cause an
uncontrolled starting action of the drives.
Possible consequences:
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Protective measures:
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Danger!
When the safe torque off" (STO) function is used, an "emergency−off"
according to EN 60204 is not possible without additional measures. There is no
electrical isolation, no service switch or repair switch between motor and
controller!
Emergency−off" requires an electrical isolation, e.g. by a central mains
contactor!
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Death or severe injuries
Safety engineering systems may only be installed and commissioned by
qualified and skilled personnel.
All control components (switches, relays, PLC, ...) and the control cabinet
must comply with the requirements of ISO 13849−1 and ISO 138492. This
includes i.a.:
– Switches, relays in IP54 enclosure.
– Control cabinet in IP54 enclosure.
– Please refer to ISO 13849−1 and ISO 138492 for all further requirements.
It is essential to use insulated wire end ferrules for wiring.
All safety relevant cables outside the control cabinet must be protected, e.g.
by means of a cable duct:
– Ensure that there are no short circuits.
– For further measures see ISO 138492.
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!
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EDS84ASC552 EN 6.0