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installed and used according to Section8.3 and have good electromagnetic
compatibility in general industry environment.
8.3 EMC Guide
8.3.1 Harmonic Effect
Higher harmonics of power supply may damage the driver. Thus, at some
places where mains quality is rather poor, it is recommended to install AC input
reactor.
8.3.2 Electromagnetic Interference and Installation Precautions
There are two kinds of electromagnetic interferences, one is interference of
electromagnetic noise in the surrounding environment on the driver, and the
other is interference of servo driver on the surrounding equipment.
Installation precautions:
The earth wires of the Driver and other electric products shall be well
grounded;
The power input and output power cables of the driver and weak current signal
cables (e.g. control line) shall not be arranged in parallel and vertical
arrangement is preferable.
It is recommended that the output power cables of the driver employ shield
cables or steel pipe shielded cables and that the shielding layer be earthed
reliably. The lead cables of the equipment suffering interferences are
recommended to employ twisted-pair shielded control cables, and the
shielding layer shall be earthed reliably.
When the length of motor cable is longer than 100 meters, it needs to install
output filter or reactor.
8.3.3 Handling method for the interferences of the surrounding equipment on
the servo driver:
The electromagnetic interference on the servo driver is generated because
plenty of relays, contactors and electromagnetic brakes are installed near the
driver. When the servo driver has error action due to the interferences, the
following measures can be taken:
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