Safety instructions – Lenze 8200 vector 15kW-30kW User Manual

Page 8

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Safety instructions

General safety and application notes for Lenze controllers

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EDK82EV303 EN 1.0

Installation

The controllers must be installed and cooled according to the instructions given in the
corresponding documentation.
Ensure proper handling and avoid mechanical stress. Do not bend any components and do
not change any insulation distances during transport or handling. Do not touch any
electronic components and contacts.
Controllers contain electrostatically sensitive components, which can easily be damaged
by inappropriate handling. Do not damage or destroy any electrical components since this
might endanger your health!

Electrical connection

When working on live controllers, the valid national regulations for the prevention of
accidents (e.g. VBG 4) must be observed.
The electrical installation must be carried out according to the appropriate regulations
(e.g. cable cross−sections, fuses, PE connection). Additional information can be obtained
from the documentation.
The documentation contains notes for the EMC−compliant installation (shielding,
earthing, arrangement of filters, and cable routing). Also observe these notes for
CE−labelled controllers. The manufacturer of the system or machine is responsible for the
compliance with the limit values required in connection with EMC legislation. In order to
comply with the limit values for radio interference applicable at the site of installation, you
have to fit the controllers into housings (e. g. control cabinets). The housings have to
provide for an EMC−compatible assembly. In particular, observe that for instance doors of
control cabinets preferably are metallically connected to the housing in a circumferential
manner. Reduce apertures or cutouts through the housing to a minimum.
Lenze controllers can cause a DC current within the PE conductor. If a residual current
device (RCD) is used for protection in the cases of direct or indirect contact, only a residual
current device (RCB) of the type B may be used on the supply side of the controller.
Otherwise a different protective measure has to be used, e. g. separation from the
environment by double or reinforced insulation, or disconnection from the supply system
by using a transformer.

Operation

If necessary, systems including controllers must be equipped with additional monitoring
and protection devices according to the valid safety regulations (e.g. law on technical
equipment, regulations for the prevention of accidents). The controller can be adapted to
your application. Please observe the corresponding information given in the
documentation.
After a controller has been disconnected from the voltage supply, all live components and
power connections must not be touched immediately because capacitors can still be
charged. Please observe the corresponding stickers on the controller.
All protection covers and doors must be shut during operation.
Note for UL approved systems with integrated controllers: UL warnings are notes that only
apply to UL systems. The documentation contains special information about UL.

Safety functions

Some variants of the controllers support safety functions (e. g. "safe torque off", formerly
"safe standstill") according to the requirements of Appendix I no. 1.2.7 of the EC Directive
"Machinery" 98/37/EC, EN 954−1 category 3 and EN 1037. The notes on the safety
functions in the documentation of the variants must be strictly observed.

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