WEG ECW500, Руководство пользователя

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Installation and Connection
ECW500 | 27
5.3.3 Grounding Connection
The ECW500 must be connected to a protection grounding (PE).
In order to do so, observe the following:
■ use a minimum wire gauge equal to the indicated in Table 5.1. If local standards require different gauges,
they must be observed;
■
connect the regulator grounding point to a specific ground rod, or to the exclusive or general grounding point
The supply lines allowed for use with the ECW500 are those of the TN or TT (IEC) type.
The connection of lines of the IT type is also possible, since it is grounded via impedance.
ATTENTION!
The neutral conductor of the line that feeds the regulator must be solidly grounded; however, it
must not be used to ground the product.
DANGER!
Do not share the grounding wiring with other equipment that operate at high currents (e.g., high
power motors, welding machines, etc.). When several regulators are used, follow the procedure
shown in Figure 5.5 for the grounding connection.
NOTE!
The frame of the synchronous machine driven by the ECW500 must always be grounded. The
machine must be grounded in the panel where the regulator is installed, or on the regulator itself.
NOTE!
When the electromagnetic interference generated by the regulator is an issue for the other
equipment, use shielded wires or wires protected by metal conduit for the output connection of
the product (F+/F-), connecting the shield at each end to the grounding point of the regulator and
to the synchronous machine frame.