4 electrical installation, 1 important notes, Electrical installation – Lenze 931W Benutzerhandbuch
Seite 64: Important notes
Electrical installation
Important notes
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MA 13.1002 DE−EN DE/EN 1.1
4
Electrical installation
4.1
Important notes
(
Stop!
The drive controller contains electrostatically sensitive components.
The personnel must be free of electrostatic charge when carrying
out assembly and service operations.
{
Danger!
ƒ
The connection of all pluggable terminals has to be effected in a
deenergised state.
ƒ
Connecting and disconnecting the voltage supply (X2) due to the
charging processes of the DC bus capacitor may cause traces of
burning on the plug−in connection, and may result in a
destruction of the internal electronic circuit.
ƒ
A false polarity of the DC supply can bring about the destruction
of the drive. Before switching the drive on, ensure that the
polarity of the DC supply is correct.
)
Note!
For trouble−free operation, the following conditions are required:
ƒ
An installation according to EMC.
ƒ
The shield of the motor cable has to be connected to PE potential
as extensively as possible to prevent effects due to interference.
ƒ
The resolver cable, encoder cable, and the motor cable may have
a length of 10 m at a maximum!
ƒ
The feeding power supply units have to be sufficiently
dimensioned. The power supply units have to be protected
against overcurrent by means of appropriate input fuses.