PA7300 Instruction Manual - TECO-Westinghouse Motor Company

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E. RS-232C SERIAL COMMUNICATIONS CONNECTION DIAGRAMThe Digital operator uses RS-232C serial communication through connectorCN1 to communicate with control board. Using the CN1 port on the control board,parameters can be monitored and updated by a suitable PC programming tool.The CN1 port is an un-isolated RS-232C with baud rate 2400 bps. ContactTECO for further information.The pin definitions of CN1 6 pin telephone jackPinSignal Definition1 LCD/PC selection2 5V3 Rx4 Tx5 0V6 Reserved (negative voltage, for LCD display)Typical connection diagramconnector 130
F. NOTES ON APPLICATION OF MOTORSMotor Application Notes for Standard MotorsA standard motor driven by the inverter generates slightly lesspower than it does when it is driven with commercial power supply.Also, the cooling effect deteriorates in low speed range so that themotor temperature rise increases. Reduce load torque in the lowspeed range. Allowable load characteristics of the standard motorare shown in the figure. If 100% continuous torque is required inthe low speed range, use an inverter duty motor. Torque characteristicsMotor torque characteristics vary when the motor is driven by an inverter instead of commercial power supply. Check the load torquecharacteristics of the machine to be connected. VibrationsBecause of the high carrier modulation technique for PWM control, the 7300PA series reduces motor vibration to a level equal torunning with a commercial power supply. Larger vibrations may occur under the following conditions:(1) Response at resonant frequency of the mechanical system.Special care is required if a machine which has previously been driven at a constant speed, is to be driven at varying speeds.Installation of anti-vibration rubber padding under the motor base and frequency jump control are recommended.(2) Rotator residual imbalanceSpecial care is required for operation at 60Hz or higher frequencies. NoiseInverter operation is as quiet as operation with commercial power supply. At above rated speed (60Hz), noise may increase bymotor cooling fan.Application to Special Purpose MotorsTorque(%)25% ED(OR 15MIN)40% ED(OR 20MIN)36 20 60FREQUENCE (Hz) High speed operationAllowable Load Characteristicsof the Standard MotorWhen the motor is used above 60Hz, motor mechanical design should be verified. Contact your motor manufacturer.10082706050060% ED(OR 40MIN)Motors with BrakesPole Change MotorsSubmersible MotorsExplosion-proof MotorsGeared MotorsSingle-phase MotorsUse brake-equipped motors with an independent power supply. Connect the brake power supply to theinverter primary side. When the brake Operates (the motor stops) it turns the inverter output OFF.Some types of brakes may make abnormal sounds in low speed range.Select the inverter with a capacity exceeding the rated current of each pole. Pole change should bemade only after the motor stops. If a pole is changed while the motor is rotating, the regenerativeovervoltage or overcurrent protection circuit is activated and the motor coasts to a stop.Since the rated current of underwater motors is large compared with general purpose motors, select aninverter with a larger capacity. If the wire length between the inverter and the motor is large, use cableswith sufficiently large diameter.Explosion-proof motors which are applied to inverters must be currently approved as explosion-proofequipment. The inverter is not explosion-proof and should not be located where explosive gases exist.Lubrication method and continuous rotation limit differ with manufacturers. When oil lubrication isemployed, continuous operation only in low speed range may cause burnout. Before operating themotor at more than 60Hz, you should consult the motor manufacturer.Single-phase motors are not suitable for variable speed operation with an inverter. If the inverter isapplied to a motor using a capacitor stack, a high harmonic current flows and the capacitor may bedamaged. For split-phase start motors and repulsion start motors, the internal centrifugal switch will notbe actuated and the starting coil may be burned out. Therefore, only use 3-phase motors. Power Transmission Mechanism (Gear Reduction, Belt, Chain, etc.)When gear boxes and change/reduction gears lubricated with oil are used in power transmission systems,(Continuous low speed operation decreases the oil lubrication function). Also, operation at more than 60Hz may result in noise,reduced life, etc.131
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4H358D0130001VARIABLE TORQUE INVERT
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CAUTION AND WARNING:WARNINGDo not c
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PART IINSTALLATION MANUAL4
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2. RECEIVING!CAUTIONThis 7300PA has
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3.2 LOCATIONLocation of the equipme
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4.2 CONNECTION DIAGRAMThe following
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Terminals GND Common lead for analo
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(b) 440V SERIESMax. ApplicableMotor
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(B) GROUNDING (PE: Protective Earth
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6. MAINTENANCE6.1 PERIODIC INSPECTI
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Table 6 Spare Parts for 440V ClassI
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CHARACTERISTICSControl MethodFreque
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(b) 220V30HP125HP440V40HP300HPWW1DW
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9. PERIPHERAL AND OPTIONS9.1 AC REA
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DRIVE FWD REVDIGITAL OPERATOR JNEP-
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400 585A JUVPHV-0060 5 3H333C002023
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9.4.2 ANALOG OPERATORAll 7300PA hav
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PART IIOPERATION MANUAL33
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Table 11 Key’s functionsKey Name
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1.3 Parameter descriptionThe 7300PA
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DescriptionKey SequenceDigital Oper
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2.2 Parameters Can Be Changed durin
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(1) Acceleration Time 1 (Bn-01)Acce
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(16) Differential Time D (Bn-16) Ou
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1. The PID sleep function is deacti
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2.3 Control Parameters C n - Funct
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FunctionEnergy-SavingTuningoperatio
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(5) DC braking current (Cn-11)Set D
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(13) Frequency agree detection leve
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OUTPUT FREQUENCYDECELERATION TIMEHY
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(25) Speed search detection level (
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(33) Energy-saving tuning operation
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(37) Auto Restart Time Interval (Cn
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FunctionOperationMode SelectProtect
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FunctionParameterNo.NameLCD Display
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Sn-XX = 1st digit2nd digit3rd digit
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(2) V/F Curve Selection (Sn-02)V/F
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(4) Operation Mode Select 1 (Sn-04)
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3 Sn-04=10 XX Full-range DC injecti
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(6) Operation Mode Select 3 (Sn-06)
Page 83 and 84: 4th digit (operation select when fr
Page 85 and 86: 4th digit 3rd digit0 00 11 01 1Cont
Page 87 and 88: 3rd digit (operation continued at m
Page 89 and 90: (15) Multi-Function Contact Input S
Page 91 and 92: 1 FWD/REV run select (set value = 0
Page 93 and 94: 7 External baseblock (set value = 0
Page 95 and 96: 11 FJOG command, RJOG command (set
Page 97 and 98: 13 DC injection braking command (se
Page 99 and 100: (16) Multi-Function Analog Input Se
Page 101 and 102: (17) Multi-Function Contact Output
Page 103 and 104: 5 Frequency detection (set value=4)
Page 105 and 106: (18) Inverter station address (Sn-2
Page 107 and 108: (25) Pump Operation Mode Selection
Page 109 and 110: 2.5 Monitoring Parameters U n - Pa
Page 111 and 112: 2.6 Monitoring Parameters H n - Th
Page 113 and 114: 2.7 Order Parameters O n - Order p
Page 115 and 116: 3. FAULT DISPLAY AND TROUBLESHOOTIN
Page 117 and 118: Protection functionExplanationLCD d
Page 119 and 120: B.) Warning and Self-Diagnosis Func
Page 121 and 122: Protection functionExternal baseblo
Page 123 and 124: APPENDIXA. ENERGY-SAVING CONTROLa C
Page 125 and 126: B. PID CONTROLa Constants related t
Page 127 and 128: c How to adjustThe PID control func
Page 129 and 130: Reducing Long-cycle OscillationIf o
Page 131 and 132: (b) PA-P PROFIBUS protocol communic
Page 133: SOURCE MODE1 Internal power supply
Page 137 and 138: H. CIRCUIT PROTECTION AND ENVIRONME
Page 139 and 140: I. INVERTER HEAT LOSS 220V CLASSInv
Page 141: K. CERTIFICATION FOR THE INVERTER C
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PA7300 Instruction Manual - TECO-Westinghouse Motor Company

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