• Use cables with the largest possible cross-sectional area to ensure that voltage drop is minimized
over long cable runs. Lowering the carrier frequency and installing a micro surge filter may also
help to reduce voltage drop.
Allowed Carrier Frequency
Do not connect power to the inverter until installation has been fully completed and the inverter is
ready to be operated. Doing so may result in electric shock.
• Power supply cables must be connected to the R, S, and T terminals. Connecting power cables to
other terminals will damage the inverter.
• Use insulated ring lugs when connecting cables to R/S/T and U/V/W terminals.
• The inverter’s power terminal connections can cause harmonics that may interfere with other
communication devices located near to the inverter. To reduce interference the installation of
noise filters or line filters may be required.
• To avoid circuit interruption or damaging connected equipment, do not install phase-advanced
condensers, surge protection, or electronic noise filters on the output side of the inverter.
• To avoid circuit interruption or damaging connected equipment, do not install magnetic
contactors on the output side of the inverter.
Step 4 Control Terminal Wiring
The illustrations below show the detailed layout of control wiring terminals, and control board
switches. Refer to the detailed information provided below and 1.5 Cable Selection on page 10
before installing control terminal wiring and ensure that the cables used meet the required
specifications.
To Next Page
Loading...
