Inovance MD320 Series, User Manual

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MD320/MD320N User Manual EMC Guide
1) The earth wires of the Inverter and other electric products shall be well grounded;
2) The power input and output power cables of the inverter and weak current signal cables
(e.g. control line) shall not be arranged in parallel and vertical arrangement is preferable.
3) It is recommended that the output power cables of the inverter 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
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4)
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reactor.
7.3.3Handling method for the interferences of the surrounding equipment on the
inverter:
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the other is conduction interference of the inverter. These two types of interferences cause
the surrounding electric equipment to suffer electromagnetic or electrostatic induction. The
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handled by referring to the following methods:
1)
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they are easy to suffer interference and thus generate error actions. It is recommended to
handle with the following methods: Put in places far away from the interference source;
do not arrange the signal cables with the power cables in parallel and never bind them
together; both the signal cables and power cables employ shielded cables and are well
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conditions.
2)
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can avoid the interference caused by the leakage current of the inverter’s earth wire when
common earth mode is adopted.
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contactors and electromagnetic brakes are installed near the inverter. When the inverter has
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1) Install surge suppressor on the devices generating interference;
2) Install filter at the input end of the inverter. Refer to Section 7.3.6 for the specific
operations.
3) The lead cables of the control signal cable of the inverter and the detection line employ
shielded cable and the shielding layer shall be earthed reliably.
7.3.4 Handling method for the interferences of inverter on the surrounding equipment:
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