■ Recommended installation procedure
To make the machinery or equipment fully compliant with the EMC Directive, certified technicians should wire the
motor and inverter in strict accordance with the procedure described below.
In case an external EMC-compliant filter (option) is used
(1) Mount the inverter and the filter on a grounded panel or metal plate. Use shielded wires for the motor cable
and route the cable as short as possible. Firmly clamp the shields to the metal plate to ground them. Further,
connect the shielding layers electrically to the grounding terminal of the motor.
(2) For connection to inverter’s control terminals and for connection of the RS-485 communication signal cable,
use shielded wires. As with the motor connections, clamp the shields firmly to a grounded panel.
(3) If noise from the inverter exceeds the permissible level, enclose the inverter and its peripherals within a metal
panel as shown in Figure G-1.
Figure G-1 Mounting an EMC-compliant Filter (option) in a Metal Panel
In case of EMC filter built-in type inverter
(1) Mount the inverter and the filter on a grounded panel or metal plate. Use shielded wires for the motor cable
and route the cable as short as possible. Firmly clamp the shields to the metal plate to ground them. Further,
connect the shielding layers electrically to the grounding terminal of the motor.
(2) For connection to inverter’s control terminals and for connection of the RS-485 communication signal cable,
use shielded wires. As with the motor connections, clamp the shields firmly to a grounded panel.
(3) If noise from the inverter exceeds the permissible level, enclose the inverter and its peripherals within a metal
panel as shown in Figure G-2.
Figure G-2 Mounting the inverter in a Metal Panel
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