Important Notes - Lenze R750-C Montage- Und Einschaltanleitung

Electrical installation

Important notes

Important notes
DANGER!
Dangerous electrical voltage
The leakage current against earth (PE) is > 3.5 mA AC or > 10 mA DC.
Possible consequences: Death or severe injuries when touching the device in the event of an
error.
▶ Implement the measures requested in EN 61800−5−1 or EN 60204−1. Especially:
▶ Fixed installation
▶ The PE connection must comply with the standards (PE conductor diameter ≥ 10 mm
use a double PE conductor)
NOTICE
Carry out the installation of the DC connection correctly
Possible consequences: In the event of an error, the installation and the device may be
damaged.
▶ Ensure earth-fault and short-circuit-proof cable laying.
▶ Length of the total installation on the DC level: ≤ 35 m
▶ Length of the installation to the first DC source: ≤ 10 m
▶ Up to a length of 300 mm, use twisted and unshielded cables.
▶ From a length of 300 mm, use shielded cables.
▶ The effectiveness of a shielded cable is achieved by:
▶ Providing a good shield connection through large-surface shield contact.
▶ Using only braided shields with low shield resistance made of tin-plated or nickel-plated
copper braid.
▶ Using braided shields with an overlap rate > 70 % and an overlap angle of 90 ° .
NOTICE
Carry out the installation of the AC connection correctly
Possible consequences: In the event of an error, the installation and the device may be
damaged.
▶ Connect the device directly without any filter measures to the AC mains.
▶ The device has all filter measures integrated.
▶ Ensure earth-fault and short-circuit-proof cable laying.
EMC category
Installation and commissioning must only be carried out by qualified personnel with EMC
knowledge.
For reducing the noise emission, device-internal filter measures were implemented. These
filter measures are connected to protective earth (PE) for discharging interference currents.
Under the following conditions, you have to disconnect the connections of the filter
measures:
Operation in the IT system
•
4Connection to the IT system,
The connection diagram is a system-typical application that has achieved the EMC category
C2.
Observe further notes on an EMC-compliant installation in the documentation of the devices
used.
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