2-6
2-1-2 Servo Driver Wiring Instructions
• The wiring materials shall be used in accordance with the "Wire Specifications."
• Wiring Length: Within 3 meters of the Command Input Wire.
Within 20 meters of the Encoder Input Wire.
Please connect with the shortest distance when wiring.
• Wiring in accordance with the Standard Wiring Diagram, do not connect to the unused signals.
• Please make sure to install IEC-standard or UL-certified circuit breakers and fuses between the
input power supply terminal and the servo driver.
• The maximum short-circuit current capacity at the maximum input voltage must be 5000 Arms or
less, if there is any doubt for the power short-circuit current exceeds the specifications, please
install a current limiting device (circuit breaker, fuse, transformer) to limit the short-circuit
current.
• The servo driver output terminal (U, V, W motor terminals) must be connected properly. Otherwise,
the servo motor will not operate normally.
• The isolation wire must be connected to the FG terminal.
• Please use the third type of grounding (grounding resistance of 100Ω or less) for grounding and
must be
single point grounding
. Please ground the motor if between the motor and the machine
is to be in insulated state.
• Do not install capacitors or overvoltage (surge) absorbers and noise filters at the servo driver
output terminal.
• For the relay installed in the control output signal, the direction of the diode used for its
overvoltage (surge) absorption must be correctly connected; otherwise, it will cause a failure to
output the signal and may also affect the protection circuit of emergency stop.
• In order to prevent erroneous operation due to noise, please use the following measures:
Please add an insulation transformer and noise filter devices on the power supply.
Please wire the power lines (strong electric circuit such as power cables, motor wire, etc.,)
more than 30 cm away from the signal wires and do not place them in the same wiring
conduit.
• In order to prevent incorrect operations, an "Emergency Stop Switch" shall be installed to ensure
safety.
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