4. WIRING
4－20
6 Leakage current
Even after the motor frame is grounded as specified, leakage current flows in the input
power line. When selecting a leak detection-type breaker, make sure that no
oversensitive operation is caused by high-frequency leakage current by referring to
“Servo Amplifier/Servomotor Leakage Current” in the specifications.
7 Power supply surge
When a surge voltage occurs in the power supply, connect a surge absorber between
the powers to absorb the voltage before operation.
8 Lightning surge
When there is a possibility that a lightning surge over 2kV may be applied to the Servo
Amplifier, take countermeasures against the surge at the control panel inlet.
For lightning surge protectors to be inserted to each Servo Amplifier inlet, the product in
the following table or its equivalent is recommended.
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