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15. <strong>Appendix</strong> 2.2 Types of Noise The noise generated in the inverter is propagated through the main circuit wiring to the power supply and the motor, and effects a wide range from the power supply transformer to the motor. The various propagation routes are shown in Figure 2, but these are roughly classified into 3 routes of conduction noise, induction noise and radiation noise. Figure 2 Noise Propagation Routes (1) Conduction noise Conduction noise is generated in the inverter, propagates through the conductor and power supply, and effects peripheral devices of the inverter (Figure 3) Some conduction noise 1) propagates through the main circuit. If the ground lines are connected with a common connection, there is conduction through route 2). There is also noise 3) through the signal line and shielded wire. Figure 3 Conduction Noise (2) Induction noise When the wire and signal lines of peripheral devices are brought close to the wires on the input and output sides of the inverter, noise is induced in the wire and signal lines of the devices by electromagnetic induction (Figure 4) and electrostatic induction (Figure 5). This is induction noise 4). Figure 4 Electromagnetic Noise 15-3
C C Figure 5 Electrostatic Noise (3) Radiation noise Noise generated in the inverter is radiated through the air from antennas consisting of wires at the input and output sides of the inverter. This noise is radiation noise 5) (Figure 6). The antennas that emit radiation noise are not limited only to wires, the motor frame and panel containing the inverter may also act as antennas. Figure 6 Radiation Noise 3 Noise Prevention Measures As noise prevention measures are strengthened, they become more effective. With the use of appropriate measures, noise problems may be resolved simply. Therefore, it is necessary to implement economical noise prevention measures according to the noise level and the equipment condition. 3.1 Noise Prevention Treatments Prior to Installation Before inserting an inverter in a control panel or installing an inverter panel, it is necessary to consider the noise. Once noise problems occur, great expenditures of apparatuses, materials and time are required. Noise prevention treatments prior to installation are listed below. 1) Separation of the wiring of the main circuit and control circuit 2) Insertion of the main circuit wiring into a metal pipe (conduit pipe) 3) Use of shielded wire or twisted shielded wire in the control circuit. 4) Implementation of appropriate grounding work and grounding wiring. These treatments can avoid most noise problems. 15-4
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12. Operation Data 12.1 Frequency R
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12. Operation Data 12.5 Impact load
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12. Operation Data 12.8 Speed-torqu
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12. Operation Data 12.11 Comparison
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13.2 Function Code List 13.2.1 Func
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Communication Control type: Availab
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Communication address Fcode Functio
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Fcode Communication address 485 num
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H: High Performance Functions Commu
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Communication address Fcode 485 Lin
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Communication address Fcode Functio
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Page 37 and 38: 485 Min increment Unit Type number
Page 39 and 40: Type [14]: Cause of alarm 15 12 8 7
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Page 43 and 44: Type [35]: X function normally open
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Page 50 and 51: 14. Replacement Data 14.3 Terminal
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Page 58 and 59: 14. Replacement Data Cat- ego- ry T
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Page 64 and 65: 14. Replacement Data � Difference
Page 66 and 67: 14. Replacement Data FRENIC5000 VG5
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Page 72 and 73: 14. Replacement Data � 400V serie
Page 80 and 81: 14. Replacement Data 14.9 Options 1
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Page 89 and 90: Table 1 Noise Prevention Methods Wi
Page 91 and 92: 3.3 Specific Examples Table 2 lists
Page 93 and 94: No. Target device Phenomena Noise p
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