Characteristic Data <Reference Data>

Transcription

1 Characteristic Data <Reference Data> NAC series NAC--7 Pulse Attenuation Characteristic Pulse width:ms NAC--7 Pulse Attenuation Characteristic Pulse width:ms NAC--7 Pulse Attenuation Characteristic Pulse width:ms NAC--7 Pulse Attenuation Characteristic Pulse width:ms NAC--7 Pulse Attenuation Characteristic Pulse width:ms NA-

2 Characteristic Data <Reference Data> NAC series Characteristic example of conductive noise reduction. Reference data (PBAF--G : Low leakage current type) 9 7 k k 7k M M 7M M M NAC--7+PBAF--G NAC--7+PBAF--G k k 7k M M 7M M M k k 7k M M 7M M M NAC--7+PBAF--G NAC--7+PBAF--G k k 7k M M 7M M M k k 7k M M 7M M M NAC--7+PBAF--G NA k k 7k M M 7M M M Condition : VAC, Io=%

3 Single Phase and Three Phase Input Type Instruction Manual Method of connecting Caution when connecting () Single Phase Please note the excessive temperature increase of filter. Please contact us if judgement is difficult. () Input voltage and frequency Please use within the rated voltage (or maximum voltage) of each model. Input frequency specification for AC input filter is considered as commercial frequency (/Hz). It should not be used under the following conditions. ) Distorted input voltage waveform. (Triangle wave, square wave etc.) ) High input frequency (ex: Hz) () Input current Please use within the rated current of each model. Three phase filter is also available as a single phase input type. () Three phase (Delta-connection) filters have short term peak current capability. Therefore, it can flow ~A or ten times of rated current, non-repeated, within a few ms such as inrush current of power supply etc. However, it should not be used under the following conditions. ) Long duration peak current. ) Peak current or high-frequency current is continuously flowing. () Connection to a general-purpose inverter (servo driver) Please connect filter to input side of inverter driver (servo driver). It should not be used between the inverter (servo driver) and the motor. () Three phase (Star-connection) possible possible Inverter or servo driver Inverter or servo driver Single phase input type impossible Three phase input type impossible Motor Motor [Reference] Example of calculating input current calculation Input voltage [V] Input capacity of the equipment [VA] Input current = [VA] [V]X =.8 [A] Manual-

4 Single Phase and Three Phase Input Type Instruction Manual Safety Considerations To apply for safety standard approval using this, the following conditions must be met. The unit must be used as a component of an end-use equipment. Protection earth terminal (PE) must be connected to safety ground of end-use equipment. Manual-

5 Noise Transmission Application Precautions The following points should be kept in mind to use the more effectively. Electronic device Electronic device Input wire and output wire of the should be separated. hen the input/output wire are bundled together or wired parallel with each other, high frequency noise is induced so, and the expected effect of noise attenuation cannot be achieved. Electronic device Input wire Input wire Noise transmission between electric power and electronic device Conducted noise from electric power lines. Radiated noise which is picked up and generated by the power line as antenna. Conducted and radiated noise which is generated in the electronic device. Conducted noise which is generated by the signal lines betweeen electronic devices. Radiated noise emitted an electronic device that interferes with other device. Radiated noise which is picked up and generated by the signal line as antenna. Output wire Output wire Good wiring example Bad wiring example Ground lines should be as short as possible. If it is not, an equivalent inductance appears, and the high frequency attenuation characteristics degrade. hen grounding the mounting plate of the, you should remove the paint to reduce the contact resistance from the equipment case, and then install the. Manual-

6 Method of measuring characteristic data Attenuation= log(u/u)[db] U : Voltage in state without filters U : Voltage in state which added filters : Network analyzer () Attenuation Characteristic(Static characteristic) Object product:single phase input type U U Fig.. Differential mode attenuation measurement diagram U U Test Connection Fig.. Common mode attenuation measurement diagram Object product:three phase input type U U Test Connection Fig.. Differential mode attenuation measurement diagram U U Object product:dc input type Test Connection Fig.. Common mode attenuation measurement diagram U COM-in COM-out (SNA) -Vin -Vout U -Vin (SNR) -Vout U Test Connection(SNA) Fig.. Differential mode attenuation measurement diagram Test Connection(SNR) U COM-in COM-out (SNA) -Vin -Vout U (SNR) -Vin -Vout U Test Connection(SNA) () Pulse Attenuation Characteristic Fig.. Common mode attenuation measurement diagram Test Connection(SNR) Noise Simulator Vi Vo Vi msec Vo Input pulse waveform Single phase input type Fig..7 Pulse attenuation measurement diagram Output pulse waveform Manual-