FR-F700 INSTRUCTION MANUAL (BASIC) - MRO Stop

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2.5 Power-off and magnetic contactor (MC)Power-off and magnetic contactor (MC)(1) Inverter input side magnetic contactor (MC)On the inverter input side, it is recommended to provide an MC for the following purposes.( Refer to page 3 for selection.)1)To release the inverter from the power supply when the inverter's protective function is activated or when the drive isnot functioning (e.g. emergency stop operation).2)To prevent any accident due to an automatic restart at restoration of power after an inverter stop made by a power failure3)The control power supply for inverter is always running and consumes a little power. When stopping the inverter for anextended period of time, powering off the inverter will save power slightly.4)To separate the inverter from the power supply to ensure safe maintenance and inspection workThe inverter's input side MC is used for the above purpose, select class JEM1038-AC3MC for the inverter input sidecurrent when making an emergency stop during normal operation.REMARKSSince repeated inrush current at powering on will shorten the life of the converter part (switching life is 100 million times (about500,000 times for the 200V class 37K or more)), frequent on/off must be avoided. Turn on/off the inverter start controlling terminals(STF, STR) to run/stop the inverter.MCPowersupplyOperation preparationOFF ONMCStopMCStart/StopOperationRARAMCCBT *1MCRAR/L1 US/L2 VT/L3 WR1/L11*2S1/L21InverterC1B1A1STF(STR)SD• Inverter start/stop circuit exampleAs shown on the left, always use the start signal(ON or OFF across terminals STF or STR-SD) tomake a start or stop.*1 When the power supply is 400V class, install a stepdowntransformer.*2 Connect the power supply terminals R1/L11, S1/L21of the control circuit to the primary side of the MC tohold an alarm signal when the inverter's protectivecircuit is activated. At this time, remove jumpersacross terminals R/L1-R1/L11 and S/L2-S1/L21.(Refer to page 17 for removal of the jumper.)(2) Handling of the inverter output side magnetic contactorSwitch the magnetic contactor between the inverter and motor only when both the inverter and motor are at a stop.When the magnetic contactor is turned on while the inverter is operating, overcurrent protection of the inverter andsuch will activate. When an MC is provided to switch to a commercial power supply, for example, it is recommended touse electronic bypass function Pr. 135 to Pr. 139 ( Instruction Manual (applied) chapter 4).To themotor2INSTALLATION AND WIRING27
Precautions for use of the inverter2.6 Precautions for use of the inverterThe FR-F700 series is a highly reliable product, but incorrect peripheral circuit making or operation/handling methodmay shorten the product life or damage the product.Before starting operation, always recheck the following items.(1) Use crimping terminals with insulation sleeve to wire the power supply and motor.(2) Application of power to the output terminals (U, V, W) of the inverter will damage the inverter. Never perform such wiring.(3) After wiring, wire offcuts must not be left in the inverter.Wire offcuts can cause an alarm, failure or malfunction. Always keep the inverter clean. When drilling mounting holes inan enclosure etc., take care not to allow chips and other foreign matter to enter the inverter.(4) Use cables of the size to make a voltage drop 2% maximum.If the wiring distance is long between the inverter and motor, a main circuit cable voltage drop will cause the motor torqueto decrease especially at the output of a low frequency.Refer to page 14 for the recommended cable sizes.(5) The overall wiring length should be 500m maximum.Especially for long distance wiring, the fast-response current limit function may decrease or the equipment connected to thesecondary side may malfunction or become faulty under the influence of a charging current due to the stray capacity of thewiring. Therefore, note the overall wiring length. (Refer to page 16.)(6) Electromagnetic wave interferenceThe input/output (main circuit) of the inverter includes high frequency components, which may interfere with thecommunication devices (such as AM radios) used near the inverter. In this case, set the EMC filter valid to minimizeinterference. (Refer to page 9)(7) Do not install a power factor correction capacitor, surge suppressor or radio noise filter on the inverter output side.This will cause the inverter to trip or the capacitor and surge suppressor to be damaged. If any of the above devices isinstalled, immediately remove it.(8) Before starting wiring or other work after the inverter is operated, wait for at least 10 minutes after the power supply hasbeen switched off, and check that there are no residual voltage using a tester or the like. The capacitor is charged with highvoltage for some time after power off and it is dangerous.(9) A short circuit or earth (ground) fault on the inverter output side may damage the inverter modules.· Fully check the insulation resistance of the circuit prior to inverter operation since repeated short circuits caused byperipheral circuit inadequacy or an earth (ground) fault caused by wiring inadequacy or reduced motor insulationresistance may damage the inverter modules.· Fully check the to-earth (ground) insulation and phase to phase insulation of the inverter output side before power-on.Especially for an old motor or use in hostile atmosphere, securely check the motor insulation resistance etc.(10) Do not use the inverter input side magnetic contactor to start/stop the inverter.Always use the start signal (ON/OFF of STF and STR signals) to start/stop the inverter.(Refer to page 8)(11) Do not apply a voltage higher than the permissible voltage to the inverter I/O signal circuits.Application of a voltage higher than the permissible voltage to the inverter I/O signal circuits or opposite polarity maydamage the I/O devices. Especially check the wiring to prevent the speed setting potentiometer from being connectedincorrectly to short terminals 10E-5.(12) Provide electrical and mechanical interlocks for MC1 andMC2 which are used for bypass operation.When the wiring is incorrect or if there is an electronicbypass circuit as shown on the right, the inverter will bedamaged when the power supply is connected to theinverter U, V, W terminals due to arcs generated at the timeof switch-over or chattering caused by a sequence error.PowersupplyR/L1S/L2T/L3UVWInverterMC1InterlockMC2IMUndesirable current28
Page 1 and 2: INVERTERINSTRUCTION MANUAL (BASIC)F
Page 3 and 4: — CONTENTS —1 PRODUCT CHECKING
Page 5 and 6: 6 PRECAUTIONS FOR MAINTENANCE AND I
Page 7 and 8: 2 INSTALLATION AND WIRINGThree-phas
Page 9 and 10: Peripheral devices400V classMotorOu
Page 11 and 12: Method of removal and reinstallatio
Page 13 and 14: Wiring2.4 Wiring2.4.1 Terminal conn
Page 15 and 16: Wiring2.4.3 Specification of main c
Page 17 and 18: Wiring400V classFR-F740-0.75K to 5.
Page 19 and 20: Wiring(1) Cable sizes etc., of the
Page 21 and 22: Wiring(2) Notes on earthing (ground
Page 23 and 24: UVWWiring• FR-F720-15K, FR-F740-1
Page 25 and 26: WiringTypeFrequency settingTerminal
Page 27 and 28: Wiring2.4.6 Changing the control lo
Page 29 and 30: Wiring2.4.7 Wiring of control circu
Page 31: Wiring2.4.9 RS-485 terminal block
Page 35 and 36: Failsafe of the system which uses t
Page 37 and 38: Operation panel (FR-DU07)3.2 Operat
Page 39 and 40: Operation panel (FR-DU07)3.2.3 Oper
Page 41 and 42: Operation panel (FR-DU07)3.2.7 Chan
Page 43 and 44: When the rated motor frequency is 5
Page 45 and 46: Start/stop from the operation panel
Page 53 and 54: Make a start and stop with terminal
Page 61 and 62: Increase the starting torque (Pr. 0
Page 63 and 64: Change acceleration and deceleratio
Page 65 and 66: Energy saving operation (Pr. 60)Ope
Page 67 and 68: Parameter clear, all parameter clea
Page 69 and 70: Parameter copy and parameter verifi
Page 71 and 72: Parameter listOperation selection a
Page 73 and 74: Parameter list4.9.3 Parameter list
Page 75 and 76: Parameter listFunctionJog operation
Page 77 and 78: Parameter listFunctionDetection of
Page 79 and 80: Parameter listFunctionRetry functio
Page 81 and 82: Parameter listFunctionOperation mod
Page 83 and 84:
Parameter listFunctionChange of ana
Page 85 and 86:
Parameter listSwitch between the in
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Parameter listFunctionOperation sel
Page 89 and 90:
Parameter listFunctionSlip compensa
Page 91 and 92:
Parameter listFunctionPU connector
Page 93 and 94:
Parameter listFunctionRegeneration
Page 95 and 96:
Parameter listFunctionAdjustment of
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List of faults or alarm display5.2
Page 99 and 100:
Causes and corrective actionsOperat
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Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Correspondences between digital and
Page 111 and 112:
Check and clear of the faults histo
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Check first when you have troubles5
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Inspection item6 PRECAUTIONS FOR MA
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Inspection item6.1.4 Display of the
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Inspection item(1) Cooling fanThe r
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Inspection item• Removal (FR-F740
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Rating7 SPECIFICATIONS7.1 Rating•
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Common specifications7.2 Common spe
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Outline dimension drawings7.3 Outli
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Outline dimension drawings• FR-F7
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Page 133 and 134:
Page 135 and 136:
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Outline dimension drawings• Opera
Page 139 and 140:
Heatsink protrusion attachment proc
Page 141 and 142:
For customers who have replaced the
Page 143 and 144:
Appendix 2 Instructions for UL and
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Appendix 3 Instructions for Complia
Page 147:
REVISIONS*The manual number is give
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FR-F700 INSTRUCTION MANUAL (BASIC) - MRO Stop

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