2 Design
2 - 32
High-function General-purpose Inverter RX2 Series User’s Manual
Configuration diagram and functions of the inverter and main circuit peripheral are described below:
Precautions for Correct Use
• Those devices are only applicable in case the standard 3-phase induction motor with four
poles.
• Breakers must be selected in consideration of break capacity.
(Use a type applicable for inverter)
• Use an earth-leakage breaker (ELB) for your safety.
• Use a 75°C heatproof copper wire (HIV wire).
• If the wiring length exceeds 20 meters, heavier power lines need to be applied.
• Select for alarm output contact of 0.75 mm
2
.
• Tighten the terminal screws at a specified torque. If they are not tightened enough, it may
cause short circuit or fire. If they are tightened too much, it may damage the terminal block or
inverter.
• Select variable sensitive currents for earth-leakage breaker (ELB) depending on the total
wire length between the inverter and power supply and between the inverter and motor.
Select a time-delay type of earth-leakage breaker. Otherwise a high-speed inverter may mal-
function.
• When wiring a CV line in a metal pipe, leak current is approximately 30 mA/km.
• Because the relative permittivity of IV wire is high, the current increases by about eight times.
Therefore, use an item with 8 times sensitive current that is shown on the table below. In
case the total length of wire exceeds 100 meters, use a CV wire.
2-3-4
Wiring for Main Circuit Terminals
Outline of Applicable Peripheral Devices
Total wiring length
Sensitive current (mA)
100 m or shorter
50
300 m or shorter
100
Summary of Contents for RX - 2
Page 1: ...High function General purpose Inverter RX2 Series User s Manual I620 E1 01 3G3RX2...
Page 54: ...1 Overview 1 22 High function General purpose Inverter RX2 Series User s Manual...
Page 136: ...2 Design 2 82 High function General purpose Inverter RX2 Series User s Manual...
Page 592: ...8 Applied Settings 8 192 High function General purpose Inverter RX2 Series User s Manual...
Page 754: ...11 Options 11 56 High function General purpose Inverter RX2 Series User s Manual...
Page 794: ...12 Troubleshooting 12 40 High function General purpose Inverter RX2 Series User s Manual...
Page 919: ......
