Küenle KFU 210 Series, Быстрый старт

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KFU 210- / 410-
14
4 Electrical installation
DANGER !

The five safety rules must be complied with.

Disconnect the frequency inverter from mains voltage (AC and DC) and protect it against
being energized unintentionally.

Verify safe isolation from power supply.

When the frequency inverter is disconnected from power supply, the mains, DC-link voltage
and motor terminals may still be live for some time. Wait for some minutes until the DC link
capacitors have discharged before starting to work at the unit.

Sizes 1 through 7 (up to 132 kW): The DC-link may have dangerous voltage levels even up to
3 minutes after shutdown.

Size 8 (as from 160 kW): The DC-link may have dangerous voltage levels even up to 10
minutes after shutdown.

Switch off power supply before connecting or disconnecting the mains cables to/from terminal
X1, and the motor cables and braking resistor to X2.
NOTE

The cables connected to the frequency inverters may not be subjected to high-voltage
insulation tests.

Use copper cables designed for an ambient temperature of at least 30 °C.

In the case of UL/CSA installations: Only use 75°C copper cables.

The earth leakage current of the frequency inverter may exceed AC 3.5 mA or DC 10 mA.
NOTE
Please note (according to EN61800-5-1):

This product may cause direct current in the protective earth conductor. Where residual
current de-vices (RCD) or residual current monitors (RCM) are used as a protection against
direct or indirect contact, only RCDs / RCMs of Type B are permissible on the power supply
side of this product.