Powtran PI500-S 004G1, Руководство пользователя

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Chapter 4 Installation and commissioning
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ter
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absorption device shall be installed additionally when electromagnetic contactor and relay is closer
from the inverter.
External control lines of inverter shall adopt isolation device or shielded wire.
In addition to shielding, the wiring of input command signal should also be aligned separately,
it is best to stay away from the main circuit wiring.
If the carrier frequency is less than 3kHz, the maximum distance between the inverter and the
motor should be within 50 meters; if the carrier frequency is greater than 4kHz, the distance should
be reduced appropriately, it is best to lay the wiring inside metal tube.
When the inverter is additionally equipped with peripherals (filter, reactor, etc.), firstly
measure its insulation resistance to ground by using 1000 volt megger, so as to ensure the measured
value is no less than 4 megohms.
When the inverter need to be started frequently, do not directly turn power off, only the control
terminal or keyboard or RS485 operation command can be used to control the start/stop operation,
in order to avoid damage to the rectifier bridge.
Do not connect the AC iutput to inverter output terminals U, V, W .
To prevent the occurrence of an accident, the ground terminal(
)must be earthed
firmly(grounding impedance should be less than 10 ohms), otherwise the leakage current will occur.
The specifications on wires used by the main circuit wiring shall comply with the relevant
provisions of the National Electrical Code.
The motor's capacity should be equal to or less than the inverter's capacity.