The duration of storage without connection to the permissible nominal voltage may not exceed
one year.
1.4 Handling and Installation
Warning!
Damaged or destroyed components must not be put into operation because they may
be a health hazard.
The frequency inverters are to be used in accordance with the documentation as well as the
applicable directives and standards.
They must be handled carefully and protected against mechanical stress.
Do not bend any components or change the isolating distances.
Do not touch electronic components or contacts. The devices are equipped with components
which are sensitive to electrostatic energy and can be damaged if handled improperly. Any use
of damaged or destroyed components shall be considered as a non-compliance with the appli-
cable standards.
Removal of seal marks may cause restrictions on warranty.
Do not remove any warning signs from the device.
1.5 Electrical Installation
Warning!
Before any assembly or connection work, discharge the frequency inverter. Verify
that the frequency inverter is discharged.
Do not touch the terminals because the capacitors may still be charged.
Comply with the information given in the operating instructions and on the frequen-
cy inverter label.
Comply with the rules for working on electrical installations.
Rules for working on electrical installation:
− Separate completely (isolate the installation from all possible sources of electrical power.
− Fix (protect against reconnection). Reconnection must be carried out by suitably qualified
persons.
− Verify there is no electrical power. Verify that there is no voltage against earth on the plant
component by measuring with measurement device or voltage tester.
− Ground and connect in a short circuit. Connect earth conductors.
− Protect against nearby power sources and delimit the working zone.
1)
In plants with a nominal power up to 1 kV deviation from description may be possible.
When working at the frequency inverters, comply with the relevant accident prevention regula-
tions, the applicable standards, standards governing work on systems with dangerous voltages
(e.g. EN 50178), directives for electrical and mechanical equipment erection and other national
directives.
Comply with the electrical installation instructions given in the documentation as well as the
relevant directives.
Responsibility for compliance with and examination of the limit values of the EMC product norm
EN 61800-3 for variable-speed electrical drive mechanisms is with the manu-facturer of the
industrial plant or machine. The documentation contains information on EMC-conforming instal-
lation.
The cables connected to the frequency inverters may not be subjected to high-voltage insula-
tion tests unless appropriate circuitry measures are taken before.
Do not connect any capacitive loads.
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