Omron EasySpeed 3G3JE, User Manual

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Chapter 2
2-13
Design
• Do not connect a resistance below the minimum. Doing so will damage the Inverter.
• The usage rate is expressed as the percentage of braking time in one cycle. For example, if the cycle time is
10 s and a Braking Resistor Unit with a usage rate of 10% ED is used, braking will be possible for up to 1 s.
● Installing a Noise Filter on the Power Supply Side
• The Inverter's outputs utilize high-speed switching, so noise may be transmitted from the Inverter to
the power line and adversely affect other devices in the vicinity.
• It is recommended that a Noise Filter be installed at the power supply to minimize the noise trans-
mission. (Noise from the power line to the Inverter will also be reduced.)
Recommended Inverter Input-side Noise Filters
Note Noise filters not designed for Inverters are less effective and may not reduce noise.
■
Wiring the Output Side of the Main Circuit Terminals
● Connecting the Terminal Block to the Load
• Connect output terminals U/T1, V/T2, and W/T3 to motor lead wires U, V, and W.
• Check that the motor rotates forward with the forward command. Switch over any two of the output
terminals (U/T1, V/T2, and W/T3) with each other and reconnect if the motor rotates in reverse with
the forward command.
● Never Connect a Power Supply to Output Terminals
If voltage is applied to the output terminals, the internal circuit of the Inverter will be damaged. Never
connect a power supply to output terminals U/T1, V/T2, or W/T3.
● Never Short or Ground Output Terminals
• Do not touch the output terminals with bare hands.
• If the output wires come into contact with the Inverter casing, an electrical shock or grounding will
occur. This is extremely hazardous. Be careful not to short the output wires.
● Do Not Use a Phase Advancing Capacitor or Noise Filter
• Never connect a phase advance capacitor or LC/RC noise filter to the output circuit. Doing so will
result in damage to the Inverter or cause other parts to burn.
General purpose For EMC compliance
3G3EV-PLNFD2103DY 3G3JV-PRS2010J
Inverter input
side
(See note.)
3G3JE
Inverter
M
3~
Three-phase
200 to 230 V AC
MCCB
MCCB
Noise Filter
Other control
device