Power Connections - WEG WECM / Emerald eZA 14634998 Manual De Instalación, Operación Y Mantenimiento

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5.1 - POWER CONNECTIONS

DANGER!
Connect the motor properly to the power supply by means of safe and permanent
contacts, always considering the data informed on the nameplate, such as rated
voltage, wiring diagram, etc.
For power cables, switching and protection devices dimensioning, consider the rated motor current,
the service factor, and the cable length, among others. For motors without terminal block, insulate
the motor terminal cables by using insulating materials that are compatible with the insulation class
informed on the nameplate. The minimum insulation distance between the non-insulated live parts
themselves and between live parts and the grounding must meet the applicable standards and
regulations for each country.
Input voltage selection (if available):
• Interconnect the jumper leads to an 115V input voltage;
• Keep the jumper leads disconnected to 208V or higher input voltage (according nameplate
indication);
Make the line, neutral and ground connections according nameplate indication;
If used, connect the optional external harmonic filter (passive PFC) in series to the line conductor.
WEG declares that the WECM / Emerald eZA motor line is intended to be used as a part of an
end-product and thus is not an independently used machine. All cables of this product need to be
internally installed into the enclosure of the final product.
DANGER!
Make sure the jumper terminals in power cable are insulated to avoid electrical
shock.
SHOCK RISK! Do not touch the jumper terminals after the product is fed.
Always connect the equipment to the ground protection (PE).
ATTENTION!
Residual Current Device (RCD):
When installing an RCD to guard against electrical shock, only devices with a trip
current of 300 mA should be used on the supply side of the inverter.
Depending on the installation (motor cable length, cable type, multimotor
configuration, etc.), the RCD protection may be activated. Contact the RCD
manufacturer for selecting the most appropriate device to be used with inverters.
30 | WECM / Emerald eZA Manual