Installation Requirements on Options
‑187‑
9 Installation Requirements on Options
9.1 AC Input Reactor
An AC input reactor is used to suppress harmonic waves in the input current. Install
an AC reactor for applications with strict requirements on harmonic suppression to
meet the requirements in IEC/EN 61000‑3‑2/12.
To install an AC input reactor, ensure sufficient space in the cabinet.
9.2 Output Reactor
With an output reactor installed at the output side of the AC drive, the excessive dV/dt
can be reduced, lowering the voltage stress on the motor winding. This protects the
motor winding, lowers the motor temperature, and prolongs the service life of the
motor.
9.3 Fuses, Contactors, and Circuit Breakers
If the fuse is blown or the circuit breaker trips, wait for at least a period of time specified on
the equipment warning label before energizing the AC drive or operating any peripheral
equipment. Failure to comply may result in equipment damage, personal injury, or even
death.
To meet the requirements in IEC/EN 61800‑5‑1 and UL61800‑5‑1, install a fuse or
circuit breaker on the input side to prevent accidents caused by internal short
circuits.
9.4 EMC Filter
The optional EMC filter can meet the EN IEC 618003 C2 emission requirements. For
details about models and dimensions, see the
MD520 Series General‑Purpose AC
Drive Hardware Guide
. Install the EMC filter according to the following requirements:
● Install the EMC filter close to the input terminals, and keep the connection cable
shorter than 30 cm.
● Connect the grounding terminal of the EMC filter to that of the AC drive, and install
the EMC filter and the AC drive on the same conductive installation surface, which
is connected to the main ground of the cabinet.
● Connect the LINE terminal of the EMC filter to the power grid, and the LOAD
terminal to the AC drive.
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