Installation of Options
‑161‑
8 Installation of Options
8.1 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.
8.2 Output Reactor
An output reactor installed on the output side of the AC drive can reduce dV/dt and
voltage stress on the motor winding, protecting the motor winding, reducing the
motor temperature, and prolonging the motor service life.
8.3 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.
8.4 EMC Filter
Use an optional EMC filter to meet category C2 emission requirements in EN 61800‑3
of CE certification. For details about models and dimensions, see the
MD500‑PLUS
Series AC Drive Selection Guide
. Install the EMC filter according to the following
requirements:
● Install the EMC filter close to the input terminals of the AC drive by using a cable
shorter than 30 cm.
● Connect the grounding (PE) terminal of the EMC filter to that of the AC drive, and
install the filter and the AC drive on the same conductive mounting surface, which
is connected to the main grounding wire of the cabinet.
● Connect the LINE terminal of the EMC filter to the grid, and the LOAD terminal to
the AC drive.
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