SD710 Series Servo Drive User Manual Chapter 1 Safety Precautions
4
1.5 Precautions When Wiring
Attention
⚫
Do not connect three-phase power to the output terminals U, V, and W of the Servo Drive, as this may result in
injury or fire.
⚫
Please connect the output U, V, W of the servo driver and U, V, W of the servo motor directly, and do not pass
through the electromagnetic contactor on the way to the wiring, otherwise abnormal operation and malfunction may
result.
⚫
Please connect the power terminal and motor terminal firmly, otherwise it may cause fire.
⚫
Please do not pass power and signal wires through the same conduit or bundle them together. When wiring, the
power supply cable and signal cable should be more than 30cm away from each other.
⚫
Please use double-stranded shielded cable for signal and encoder cables, and ground the shielding layer at
both ends.
⚫
The maximum wiring length for the command input line is 3m, and the maximum wiring length for the encoder is
20m.
⚫
Even if the power is turned off, high voltage may remain inside the Servo Drive, so do not touch the power
terminals for a while (5 minutes).
⚫
Do not touch the power terminals for a while (5 minutes). Make sure that the indicator light is off before
checking.
⚫
Do not turn on/off the power frequently. If it is necessary to turn on/off the power repeatedly and continuously,
please limit it to less than once a minute.
⚫
Since the power supply part of the servo driver has a capacitor, a large charging current (charging time 0.2
seconds) will flow when the power is turned on/off. Therefore, if the power supply is turned on/off frequently, the
performance of the main circuit components inside the Servo Drive will be degraded.
⚫
When wiring the main circuit connector, observe the following precautions.
①
Detach the connector from the Servo Drive when wiring.
②
Only one wire can be inserted into one wire socket of the connector. When inserting the wires, do not short-
circuit the core wire to the adjacent wire.
③
Do not connect the 220V Servo Drive directly to the 380V power supply, as this may damage the Servo Drive.
④
Please do the wiring correctly and reliably, otherwise the motor may be out of control, injured or malfunction.
⑤
Please use the specified power supply voltage, otherwise it may cause the machine to burn out.
⑥
When using under poor power condition, make sure that the input power is supplied within the specified voltage
variation range, otherwise the machine may be damaged.
⑦
Install safety devices such as circuit breakers to prevent short-circuiting of external wiring; otherwise, a fire may
result.
⚫
Please take adequate and appropriate shielding measures when in the following places, otherwise the machine
may be damaged.
①
When interference is generated due to static electricity.
②
Places where strong electric or magnetic fields are generated.
③
Places where radiation may be emitted.
④
Places where there are power lines nearby.
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