Safety instructions – Lenze 712 E.3B Benutzerhandbuch

Seite 43

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Safety instructions

General safety instructions and application notes for Lenze drive controllers

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EDB712 DE/EN 2.1

Transport, storage
Follow the instructions on transport, storage and correct handling.
Observe the climatic conditions (see if necessary chapter ”Technical data”).
Installation
You must install and cool the drive controller in accordance with the regulations

in the related documentation.
Ensure the device is handled carefully and avoid mechanical overload. Do not

bend components during transport and handling or change isolation distances.

Do not touch any electronic components or contacts.
Drive controllers contain electrostatic sensitive devices that can easily be

damaged in case of improper handling. Do not damage or destroy any electrical

components, as you may harm your health in the process!
Electrical connection
When working on live drive controllers, observe applicable health and safety

regulations (e.g. VBG 4).
Undertake electrical installation in accordance with the applicable regulations

(e.g. cable cross-sections, fusing, protective earth connection). The

documentation contains additional instructions.
The documentation contains instructions for EMC-compliant installation

(shielding, earthing, layout of filters and laying cables). Also follow these

instructions for CE marked drive controllers. The manufacturer of the system or

the machine is responsible for compliance with the limits in relation to EMC law.

To comply with the limits for radiated emissions in the place the device is

installed, the drive controller must be installed in a housing (e.g. control

cabinet). The housing must facilitate an EMC-compliant layout. Pay particular

attention, e.g. that switch cabinet doors are connected metallically to the

housing all round if possible. Openings or break-outs on the housing are to be

reduced to a minimum.
Lenze drive controllers can cause DC currents in the PE conductor. If a residual

current device (RCD) is used for protection against direct or indirect physical

contact, only a residual current device (RCD) of type B is allowed on the power

supply side of the drive controller. Otherwise a different protective measure

must be used, e.g. isolation from the surroundings using double insulation, or

reinforced insulation, or isolation from the supply system using a transformer.

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