Lenze 8400 Manuel d'utilisateur télécharger pdf (Page 271)

Safety engineering

Important notes

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271

EDS84ASC552 EN 9.1

10.2 Important notes

Application as directed

The c ontrollers 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 s afety.

 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 c omply 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!

 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 o r repair switch

between motor and controller!

“Emergency switching-off” requires an electrical isolation, e.g. by a central

mains contactor!

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Lenze 8400 Manuel d'utilisateur Page 271