GE C11 Harmonic component, Noise, Leakage current, Others, Countermeasures for leakage current

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2-4 Others

2-4-1 Harmonic component

A harmonic component which may influence the phase-advance capacitor and generator is included in the drive input current. If necessary , connect a power-factor correcting DC reactor (DCR) (option) for the drive.

2-4-2 Noise

When noise generated from the drive may affect peripheral equipment, and noise generated from pe- ripheral equipment may malfunction the drive, the following basic countermeasures should be taken.

1.When noise affects other devices via power and ground wires

·Separate the ground of the drive and that of the affected device.

·Connect a noise filter to the drive power wire.

·Use an isolation transformer to separate the power supply of the drive and that of the affected device.

2)When another device is affected by induction or radiation

·Separate the main circuit wiring of the drive from the control wiring and wiring of the affected de- vice.

·Encase the drive main circuit wiring in a metal tube and ground the metal tube near the drive.

·Encase the drive in a metal rack and ground the rack.

·Connect a noise filter to the drive power wire.

3)When noise generated from peripheral equipment affects the drive

·Use twisted or twisted-pair shielded wires for the drive control wiring. Ground the shields.

·Connect a surge absorber in parallel to the coil of the magnetic contactor and solenoid .

·If the power supply includes much distortion of the waveform or surge, connect an impedance matching AC reactor for coordination of power supply.

2-4-3 Leakage current

Leakage current flows through the drive I-O wiring and motor stray capacitance when the drive transistor is turned on and off. Table 2-3-3 lists the countermeasures for the problems caused by the leakage current.

Table 2-3-3 Countermeasures for leakage current

 

Problem

Countermeasures

1

Trip of earth leakage circuit breaker

Set the carrier frequency lower.

Shorten the wiring between the drive and motor.

 

on main power supply side

 

Increase the ELCB/RCD sensitivity current.

 

 

Replace the ELCB/RCD with an ELCB/RCD that is de-

 

 

signed for high frequencies.

2

Trip of external thermal O/L relay

Set the carrier frequency lower.

Increase the thermal O/L relay set value.

 

 

 

 

Use the drive electronic thermal O/L relay.

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Contents AF-300 C11 TM Table of Contents Safety Instructions Page Compliance with low voltage directive in EU Instructions on use Drive may be dropped causing injuryThere is a risk of fire Otherwise fire could occurOtherwise, fire could occur Instructions on wiringOtherwise electric shock or fire could occur Otherwise electric shock could occurOtherwise accident could occur Instructions on operationThere is a risk of accidents Otherwise burns could occurGeneral instructions Instruction on maintenance/inspection, and replacementOtherwise electric shock or injury could occur Preface Horsepower Input PhasesFactory Installed Options GE Product Code AF-300 Drive Family Input Voltage230VAC, Single phase, 50/60Hz Input 230VAC, 3 phase, 50/60Hz InputReceiving Inspections Before Using This ProductAppearance Handling the Product Carrying Storage precautionsStorage and transportation 1 Storage and transportation environment10 cm Installation and ConnectionAF-300C11 1 Operating environmentOtherwise electric shock and fire could occur 1Basic connectionConnection 1 Functions of main circuit and ground terminals Connecting the main circuit and ground terminalsCutting of barrier -3-2 Connection of DC reactor Connecting the control terminalsConnection diagram 4 Surge absorber connection diagram 7 Control terminal block arrangement FWD 2 Functions of control circuit terminalsDX+ Connection examples 200 to 50/60Hz Mccb Fuse Connection to PLC when analog signal is input from PLC Noise Harmonic componentLeakage current OthersInspection and Preparation before Operation OperationOperation Method 1 General operation methodTrial Run 1 Running commandNames and Functions Keypad PanelIs pressed at the same time as Operating Keypad PanelProcedure Display Press Function Selection List 1 Table of Function Selection List Selecting FunctionFundamental functions Voltage adjust Carrier freq 75kHz is set when 0 is specified Sound tone30Ry operation mode Excited when tripped Normally excited To 10.0minControl Functions of Frequency Extension Terminal FunctionsX3 terminal function Tions Jump frequencyHigh Performance Functions Motor ParametersSerial communication option Optional FunctionsF01 F00 Data protectionDetails of Each Function Otherwise injuries could occurKey is pressed and decelerates-to-stop when F02 Operation methodMotor runs when GE Start Software Selection During Terminal Operation This function sets the maximum output frequency F03 Maximum output frequencyF05 F04 Base frequencyF06 F07Electronic thermal O/L relayLevel F09 Torque boostF10 F11 Electronic thermal O/L relay Select F12 Electronic thermal O/L relay thermal time constant Set with F12 Operating time? ì? ? ŒcharacteristicsÀ ÁPhase input Single Phase Input F14 Restart mode after momentary power failureF15 Frequency limiter High F16 Frequency limiter LowF18 Bias frequency F17 Gain For frequency setting signalBias positive Bias negative 20mAdcF22 DC injection brakeBraking time F20 DC injection brake Starting frequencyF21 F25 Stop frequency F23 Starting frequencyF24 F26 Motor sound carrier freqF31 FM terminal Function F30 FM terminal voltage adjustF27 Motor sound sound tone Normal Tripped Operation F36 30Ry operation modeX1 terminal function E01 E02 E03X2 terminal function X3 terminal functionFrom previous P00 Motor characteristics C07 Multistep frequency settingC01 C02 C03 Jump frequency 1, 2 C04 Jump frequency HysteresisH02 Trip history H01 Operation timeH20 PID control Mode select H04 Auto ResetData initialization H03H22 PID control P-gain H21 PID control Feedback signalH23 PID control I-gain H25 PID control Feedback filterOptional RS485 serial communication unit O00 Option selectionRS485 RTU communication 1 List of Protective Functions Protective FunctionList of protective functions Keypad panel Normal display Alarm display Display Alarm ResetAlarm output Trip Otherwise fire could occurLoad excessive? TroubleshootingCase of tripping Does OU activate when load is removed Power supply voltage within specified value?Consider using DC OvervoltageOUHeat sink overheat- ing OH1 Drive overload OLU or motor overload OL Is electronic thermal O/L relay setting correct?Noise source nearby? Probable faulty drive. Contact GE Fuji Set o00 toConnect the input wires correctly Input phase failure Lin and imbalanceMotor does not start Setting too low? When motor rotates but the speed does not changeMotor generates ab Function change is disabled Normal heat When motor stalls during accelerationTo 0? Set F00 toDaily Inspection Maintenance and InspectionPeriodic Inspection There is danger of electric shockElectrolyte leakage Visual Not abnormal 1 Periodic inspection listDiscoloration and distortion Visual Not abnormal More Overheating? Is off 2Tighten more 3Visual inspection Single -phase Three-phaseElectrical measurements in the Main Circuit 1 Meter for measuring the main circuitInput series Case of 3-phase input series+ + Motor SupplyInquiries about Products and Product Warranty Warranty Coverage 6Warranty ServiceIN-WARRANTY Failure Checklist Standard Specifications SpecificationsDrive output capacity kVA at RUN Stop Common specificationsPage Page Page Dimensions 00.2 2 68 17.2 D 00.2 Terminal Terminal 1 M2.5 00.2 2 External Options 1 External Options OptionsBuilt-in Options Connection method Applicable DC reactorsCompliance with standards PrecautionsGeneral L1/L L2/N L1/R L2/S L3/T P1 + N- U THR CMGeneral RFI Filters Electromagnetic Compatibility EMCGeneral Ferrite Ring Dimensions 1 RFI filters DimensionsPage 1 Recommended Installation 2 Recommended installation detail inside the enclosure GE Fuji Drives USA, Inc Roanoke Blvd. Suite
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