Identification Of The Power Terminals And Grounding Points; Power And Grounding Wiring, Circuit Breakers And Fuses - WEG MW500 Serie Manual Del Usuario

Installation and Connection

3.2.1 Identification of the Power Terminals and Grounding Points

The location of the power, grounding and control connections are shown in
page 124.
Description of the power terminals:
Terminal X1 (L1/L, L2/N and L3 (R, S, T,
„
Terminal X2 (U/T1, V/T2, W/T3,
„
Terminal X3 (DC-, BR, DC+,
„
the voltage of the DC bus, BR is the connection of the brake resistor and DC+ is the positive
pole of the voltage of the DC bus.

3.2.2 Power and Grounding Wiring, Circuit Breakers and Fuses

ATTENTION!
Use proper cable lugs for the power and grounding connection cables.
„
Refer to
and fuses.
Keep sensitive equipment and wiring at a minimum distance of 0.25 m from
„
the inverter and from the cables connecting the inverter to the motor.
It is not recommended the use of mini circuit breakers (MDU), because of
„
the actuation level of the magnet.
NOTE!
The wire gauges listed in
Installation conditions and the maximum permitted voltage drop must be
considered for the proper wiring sizing.
10 | MW500
): connection for the motor.
): DC bus and brake connection. DC- is the negative pole of
Table B.1 on page 128
Table B.1 on page 128
)): AC power supply.
for recommended wiring, circuit breakers
are approximate values.
Figure A.2 on