Electrical Installation
‑34‑
6 Electrical Installation
6.1 Safety Cautions
● Observe the following requirements during wiring of the power supply and main
circuit:
■ When the main circuit terminal is a connector, remove the connector from the
servo drive before wiring.
■ Insert one cable into one cable terminal of the connector. Do not insert
multiple cables into one cable terminal.
■ When inserting cables, take enough care to prevent the cable conductor burrs
from being short circuited to the neighboring cable.
■ Insulate the connecting part of the power supply terminals to prevent electric
shock.
■ Do not connect a 220 V servo drive to a 380 V power supply directly.
■ Install safety devices such as a circuit breaker to prevent short circuit in
external circuits. Failure to comply may result in a fire.
■ Cut off the main circuit power supply and switch off the S‑ON signal after an
alarm signal is detected.
● Do not put heavy objects onto cables or pull cables with excessive force. Failure to
comply may result in cable damage, leading to an electric shock.
● Use a power supply filter to reduce the electromagnetic interference on electronic
devices surrounding the servo drive.
6.2 Wiring of the Power Supply
● Single‑phase 220 V models: SV660FS1R6I, SV660FS2R8I, SV660FS5R5I, SV660FS7R6I
and SV660FS012I
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