iii
Installation and cabling/wiring of option cards
• Do not operate the switch SW1 with wet hands.
Doing so could cause electric shock.
• Before starting installing the RS485 Communications Card, first turn off the power, wait
more than 5 minutes, and make sure, using a circuit tester or another appropriate
instrument, that the DC voltage between the P (+) and N (-) terminals of the main circuit is
less than +25 VDC.
Otherwise electric shock could occur.
• A high voltage is present just on the RS485 Communications Card. Do not remove the
cover for the control circuit terminal block (TB) while power is applied.
Doing so could cause electric shock.
• Generally, the sheath of control circuit wires is not reinforced by any insulation. If the
control circuit wires come into direct contact with the live main circuit terminal, therefore,
the sheath may break. Accordingly, there is a possibility that high voltage on the main
circuit may be applied to the control circuit wires. It is DANGEROUS. Be sure to keep the
control wires away from the live main circuit terminals.
An accident or electric shock could occur.
Disposal
•
Handle this Remote Keypad or the RS485 Communications Card as an industrial waste
when disposing of it.
Otherwise injuries could occur.
Others
• Never attempt to modify the inverter.
Doing so could cause electric shock or injuries.
GENERAL PRECAUTIONS
Drawings in this manual may be illustrated without covers or safety shields for explanation of
detail parts. Restore the covers and shields in the original state and observe the description in
the manual before starting operation.
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