Lenze 8400 protec Manual - Manual (Page 173)

Safety engineering
Important notes
11
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173 EDS84DPS424 EN 5.0
11.2 Important notes
Application as directed
The controllers of the 8400 protec 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:
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 ISO 138491 and ISO 13849−2. This
includes i.a.:
– Switches, relays with at least IP54 enclosure.
– Control cabinet with at least IP54 enclosure.
– Please refer to ISO 138491 and ISO 13849−2 for all further requirements.
ƒ Wiring must be shielded.
ƒ 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 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!
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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!