Important Notes - Lenze 8400 Hardware Manual

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 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
switching-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 switching-off" requires an electrical isolation, e.g. by a central
mains contactor!
EDS84ASC552 EN 10.0
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
cabinetmust comply with the requirements of EN ISO 13849-1 and EN ISO
138492. Thisincludes i.a.:
– Switches, relays with at least IP54 enclosure.
– Control cabinet with at least IP54 enclosure.
– Please refer to EN ISO 13849-1 and EN 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 no short circuits can occur.
– For further measures see EN 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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Safety engineering
Important notes
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