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Please read here first (Continued)
4. Wiring
WARNING
Any person who is involved in the wiring of this equipment should be fully competent to do
the work. Otherwise, an electric shock or fire can occur.
Install a no-fuse breaker or earth leakage circuit breaker. Otherwise, a drive unit failure
can cause large currents to flow, resulting in a fire.
Always install the unit before wiring. Otherwise, an electric shock or fire can occur.
Before restarting wiring after power-on, make sure that the motor is at a stop, wait for more
than 10 minutes after switching power off, and confirm that the DC voltage across the DC
terminals P/+ and N/- is low enough to do the work. Immediately after power-off, the DC
terminals P/+, N/- are charged with more than 200V (residual voltage of the internal
capacitor). Therefore, an electric shock may occur.
Even after power-off, the motor connection terminals U, V, W have high voltages while the
motor is running. Always start wiring after confirming that the motor has stopped. Not
doing so can cause an electric shock.
Earth the drive unit. Not doing so can cause an electric shock or fire.
CAUTION
Make sure that the input power supply voltage matches the rated voltage specifications.
Mismatch can cause a fire or accidents.
Check the terminal layout and terminal symbols to ensure that connections are correct.
Wrong connections can cause a fire or accidents.
Do not connect a power supply to the motor connection terminals U, V, W. Doing so can
cause a fire or accidents.
Connect the motor connection terminals U, V, W to match the motor phase sequence.
Wrong connections can cause accidents due to reverse rotation of the motor.
Do not connect a resistor across the DC terminals P/+-N/-. Doing so can cause a fire or
accidents.
Take measures to prevent peripheral sensors and equipment from malfunctioning due to
electromagnetic noises. Not doing so can cause accidents.
Take measures to prevent peripheral power capacitors and generators from overheating or
being damaged due to power harmonics. Not doing so can cause a fire.
Connect the power capacitor, surge suppressor and radio noise filter (FR-BIF option) on
the power supply side. Connection on the output side can cause a fire.