Wiring Main Circuit Terminals
2-
23
•
Incorrect
Noise Filter Installation
Fig 2.11 Incorrect Power supply Noise Filter Installation
n
Wiring
the
Output
Side
of
Main
Circuit
Observe
the following precautions when wiring the main output circuits.
Connecting
the
Inverter
and
Motor
Connect
output terminals U, V, and W to motor lead wires U, V, and W, respectively.
Check
that the motor rotates forward with the forward run command. Switch over any two of the output termi-
nals
to each other and reconnect if the motor rotates in reverse with the forward run command.
Never
Connect
a
Power
Supply
to
Output
Terminals
Never
connect a power supply to output terminals U, V, and W. If voltage is applied to the output terminals,
the
internal circuits of the Inverter will be damaged.
Never
Short
or
Ground
Output
Terminals
If
the output terminals are touched with bare hands or the output wires come into contact with the Inverter cas-
ing,
an electric shock or grounding will occur. This is extremely hazardous. Do not short the output wires.
Do
Not
Use
a
Phase
Advancing
Capacitor
or
Noise
Filter
Never
connect a phase advancing capacitor or LC/RC noise filter to an output circuit. The high-frequency
components
of the Inverter output may result in overheating or damage to these part or may result in damage
to
the Inverter or cause other parts to burn.
Do
Not
Use
an
Electromagnetic
Switch
Never
connect an electromangetic switch (MC) between the Inverter and motor and turn it ON or OFF during
operation.
If the MC is turned ON while the Inverter is operating, a large inrush current will be created and the
overcurrent
protection in the Inverter will operate.
IM
MCCB
MCCB
IM
MCCB
MCCB
Power
supply
Power
supply
Inverter
Inverter
Other
controllers
Other
controllers
General-
purpose
noise filter
General-
purpose
noise filter
Do not use general-purpose noise filters. No general-
purpose noise filter can effectively suppress noise
generated from the Inverter.
3G3RV
Example:
SYSMAC
3G3RV
Example:
SYSMAC
Summary of Contents for SYSDRIVE 3G3RV
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