1.5 Electrical Connection
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 frequency inverter label.
When working at the frequency inverters, comply with the applicable standards BGV
A2 (VBG 4), VDE 0100 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
manufacturer of the industrial plant or machine.
The documentation contains information on EMC-conforming installation. The cables
connected to the frequency inverters may not be subjected to high-voltage insulation
tests unless appropriate circuitry measures are taken before. Otherwise the
frequency inverter may be damaged.
1.6 Information on Use
Warning! The frequency inverter may be connected to power supply every 60 s
only. Otherwise the unit may be damaged. For this reason, a jog
operation of a mains contactor is not permissible. For commissioning or
after an emergency stop, a non-recurrent, direct restart is permissible.
After a failure and restoration of the power supply, the motor may start
unexpectedly if the Auto-Start function is activated.
Before commissioning and the start of the operation fix all covers and
check the terminals. Check the additional monitoring and protective
devices according to EN 60204 and applicable the safety directives (e.g.
Working Machines Act, Accident Prevention Directives etc.).
No connection work may be performed, while the system is in operation.
1.7 Maintenance and Service
Warning! Unauthorized opening and improper interventions can lead to personal
injury or material damage. Repairs on the frequency inverters may only
be carried out by the manufacturer or persons authorized by the
manufacturer. Check protective equipment regularly.
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