Lenze 8400 - Manual (Page 271)

Safety engineering
Important notes
10
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271 EDS84ASC552 EN 9.1
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:
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
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.
ƒ
It is essential to use insulated wire end ferrules for wiring.
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 138492.
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!