INSTRUCTION MANUAL
The new high-performance inverter
TOSVERTTM VF-AS1
200V CLASS |
0.4 75KW |
400V CLASS |
0.75 500KW |
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NOTICE
1.Make sure that this instruction manual is delivered to the end user of the inverter unit.
2.Read this manual before installing or operating the inverter unit, and store it in a safe place for reference.
E6581301
Safety |
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precautions |
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Introduction |
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Contents |
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Read first |
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Connection |
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equipment |
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Operations |
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Searching and |
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setting parameters |
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Basic |
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parameters |
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Extended |
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parameters |
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Operation with |
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external signal |
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Monitoring the |
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operation status |
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Taking measures |
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to satisfy the |
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CE/UL/CSA standards |
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Selection of |
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Table of |
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parameters |
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Specifications |
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Before making a |
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service call |
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Inspection and |
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maintenance |
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Warranty |
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Disposal of |
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the inverter |
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E6581301! |
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I. Safety precautions |
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The items described in these instructions and on the inverter itself are very important so that you can use the inverter safely prevent injury to yourself and other people around you as well as prevent damage to property in the area. Thoroughly familiarize yourself with the symbols and indications shown below and then continue to read the manual. Make sure that you observe all cautions given.
Explanation of markings
Marking |
Meaning of marking |
Warning Indicates that errors in operation may lead to death or serious injury.
Caution Indicates that errors in operation may lead to injury (*1) to people or that these errors may cause damage to physical property. (*2)
(*1) Such things as injury, burns or shock that will not require hospitalization or long periods of outpatient treatment. (*2) Physical property damage refers to wide-ranging damage to assets and materials.
Meanings of symbols
Marking |
Meaning of marking |
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Indicates prohibition (Don't do it). |
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What is prohibited will be described in or near the symbol in either text or |
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picture form. |
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Indicates something mandatory (must be done). |
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What is mandatory will be described in or near the symbol in either text or |
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picture form. |
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•Indicates warning. |
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What is warned will be described in or near the symbol in either text or picture |
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form. |
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•Indicates caution. |
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What the caution should be applied to will be described in or near the symbol in |
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either text or picture form. |
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■ Limits in purpose
This inverter is used for controlling speeds of three-phase induction motors in general industrial use.
Safety precautions
This product is intended for general purpose uses in industrial application. It cannot be used applications where may cause big impact on public uses, such as power plant and railway, and equipment which endanger human life or injury, such as nuclear power control, aviation, space flight control, traffic, safety device, amusement, or medical.!
It may be considerable whether to apply, under the special condition or an application where strict quality control may not be required. Please contact your Toshiba distributor.
Please use our product in applications where do not cause serious accidents or damages even if product is failure, or please use in environment where safety equipment is applicable or a backup circuit device is provided outside the system.
Do not use the inverter for loads other than those of properly applied three-phase induction motors in general industrial use.
(Use in other than properly applied three-phase induction motors may cause an accident.)
When the inverter is used to control the operation of a permanent magnet motor, a combination test must be conducted in advance. For details on the test, contact your Toshiba distributor.
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E6581301 |
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■ General Operation |
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Warning |
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• Never disassemble, modify or repair. This can result in electric shock, fire and injury. For |
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repairs, call your sales agency. |
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Disassembly |
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prohibited |
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Never remove the front cover when power is on or open door if enclosed in a cabinet. |
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The unit contains many high voltage parts and contact with them will result in electric shock. |
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• Don't stick your fingers into openings such as cable wiring hole and cooling fan covers. This |
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can result in electric shock or other injury. |
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Prohibited |
• Don't place or insert any kind of object into the inverter (electrical wire cuttings, rods, wires). |
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This can result in electric shock or fire. |
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• Do not allow water or any other fluid to come in contact with the inverter. This can result in |
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electric shock or fire. |
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• Turn power on only after attaching the front cover or closing door if enclosed in a cabinet. |
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If power is turned on without the front cover attached or closing door if enclosed in a cabinet, |
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this can result in electric shock or other injury. |
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• If the inverter begins to emit smoke or an unusual odor, or unusual sounds, immediately turn |
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power off. If the equipment is continued to operate in such a state, the result may be fire. |
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Mandatory |
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Call your local sales agency for repairs. |
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• Always turn power off if the inverter is not used for long periods of time since there is a |
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possibility of malfunction caused by leaks, dust and other material. |
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The leakage current caused by the contamination may result in fire. |
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Caution |
Reference |
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• Do not touch any radiating fins or radiating resistors. |
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They can become very hot, and you may get burned if you touch them. |
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Prohibited |
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contact |
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E6581301! |
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■ Transportation & installation |
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Warning |
Reference |
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Do not install or operate the inverter if it is damaged or any component is missing. This can |
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result in electric shock or fire. Please consult your local sales agency for repairs. |
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Do not place any inflammable objects nearby. If a flame is emitted due to malfunction, it |
1.4.4 |
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Prohibited |
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may result in a fire. |
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Do not install in any location where the inverter could come into contact with water or other |
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fluids. This can result in electric shock or fire. |
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Must be used in the environmental conditions prescribed in the instruction manual. Use |
1.4.4 |
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under any other conditions may result in malfunction. |
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Must be installed in non-inflammables such as metals. |
1.4.4 |
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The rear panel gets very hot. If installation is in an inflammable object, this can result in fire. |
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Do not operate with the front panel cover removed. Doing so could result in electric shock. |
1.4.4 |
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An emergency stop device must be installed that fits with system specifications (e.g. shut |
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Mandatory |
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off input power then engage mechanical brake). |
1.4.4 |
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Operation cannot be stopped immediately by the inverter alone, thus risking an accident or |
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injury. |
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• All options used must be those specified by Toshiba. |
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The use of any other option may result in an accident. |
1.4.4 |
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Caution |
Reference |
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When operating, do not hold by the front panel covers. |
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The covers may come off and the unit will drop out resulting in injury. |
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Do not install in any area where the unit would be subject to large amounts of vibration. |
1.4.4 |
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That could result in the unit falling, resulting in injury. |
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Prohibited |
• ..Do not expose the drive to halogen group disinfectants. |
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Failure to comply may cause damage to the electrical components in the drive. |
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Models (20kg or more in weight) designed for 200V-18.5kW or larger and 400V-22kW or |
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larger should be carried by 2 people more, or it could fall and cause an injury. |
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Handle large capacity models using a crane. |
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Lifting heavy inverters can cause injury to persons. |
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Taking care of safety for users, handle carefully in order not to damage the inverter. |
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Carefully lift up the inverter, hanging wires on the hanging bolts or holes on the top or |
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bottom of the inverter. |
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Mandatory |
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Note 1: Always keep the two sling ropes in balance when lifting the inverter, and take care |
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that unexpected force does not apply to the inverter during lifting. |
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Note 2: Always protect the inverter with a cover when transporting it. |
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Note 3: Do not put your hand in the wiring port or do not hold it when transporting the |
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inverter. |
1.4.4 |
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The main unit must be installed on a base that can bear the unit's weight. |
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If the unit is installed on a base that cannot withstand that weight, the unit may fall resulting |
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in injury. |
1.4.4 |
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Install a mechanical brake whenever the motor requires a brake (device which retains the |
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motor shaft). |
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Failure to do so could lead to injury to persons because the inverter itself has no function of |
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mechanically retaining the brake shaft. |
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3
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E6581301 |
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■ Wiring |
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Warning |
Reference |
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Do not connect input power to the output (motor side) terminals (U/T1,V/T2,W/T3) of the |
2.2 |
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inverter. |
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Doing so will destroy the inverter and may result in fire. |
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Do not connect resistors to the DC terminals (e.g., PA/+ and PC/-, or PO and PC/-). |
5.19 |
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That may cause a fire. |
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Prohibited |
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Connect resistors as directed by the instructions for “Installing separate braking resistors.” |
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Within 15 minutes after turning off input power, do not touch wires of devices (MCCB) |
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connected to the input side of the inverter. |
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That could result in electric shock. |
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Switch the grounding capacitor switch according to installation requirements. |
1.3.3 |
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If the switch is incorrect, that may result in fire or malfunction. |
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Electrical construction work must be done by a qualified expert. |
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Connection of input power by someone who does not have that expert knowledge may |
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result in fire or electric shock. |
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Connect output terminals (motor side) correctly. |
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If the phase sequence is incorrect, the motor will operate in reverse and that may result in |
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injury. |
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Wiring must be done after installation. |
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If wiring is done prior to installation that may result in injury or electric shock. |
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The following steps must be performed before wiring. |
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(1) Turn off all input power to the inverter. |
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(2) Wait at least 15 minutes and check to make sure that the charge lamp is no longer lit. |
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Mandatory |
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(3) Use a tester that can measure DC voltage 800VDC or more, and check to make sure |
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that the voltage to the DC main circuits (between PA/+ and PC/-) is 45V or less. |
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! If these steps are not properly performed, the wiring will cause electric shock. |
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Tighten the screws on the terminal board to specified torque. |
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If the screws are not tightened to the specified torque, it may lead to fire. |
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Check to make sure that the input power voltage is +10%, -15% of the rated power voltage |
1.4.4 |
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written on the rating label (±10% when the load is 100% in continuous operation). |
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If the input power voltage is not +10%, -15% of the rated power voltage (±10% when the |
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load is 100% in continuous operation) this may result in fire. |
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Ground must be connected securely. |
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If the ground is not securely connected, it could lead to electric shock or fire when a |
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malfunction or current leak occurs. |
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Be Grounded |
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Caution |
Reference |
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Do not attach equipment (such as noise filters or surge absorbers) that have built-in |
2.1 |
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capacitors to the output (motor side) terminals. |
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That could result in a fire. |
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Prohibited |
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Caution |
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Charged capacitors can present a shock hazard even after source power is removed. |
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Drives with EMC filters will retain a charge on the input terminals for up to 15 min. after the power has been |
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removed. To avoid electrical shock, don’t touch the connector terminals and uninsulated source cables at |
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Caution |
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either the main circuit disconnect or the drive until the capacitive charge has dissipated. |
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4
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E6581301! |
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■ Operations |
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Warning |
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Reference |
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Do not touch inverter terminals when electrical power is applied to the inverter even if the |
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motor is stopped. |
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Touching the inverter terminals while power is connected to it may result in electric shock. |
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Do not touch switches when thands are wet and do not try to clean the inverter with a |
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damp cloth. |
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Such practices may result in electric shock. |
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Do not go near the motor in alarm-stop status when the retry function is selected. |
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The motor may suddenly restart and that could result in injury. |
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Take measures for safety, e.g. attaching a cover to the motor, against accidents when the |
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motor unexpectedly restarts. |
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Prohibited |
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The inverter is tuned automatically (auto-tuning = , ) when the inverter is started |
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6.22 |
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for the first time after setup. |
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During auto-tuning, which takes several seconds, the motor is energized, although it is |
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standing still. Noise may be produced by the motor during auto-tuning, which, however, |
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does not indicate that something is wrong with the inverter or the motor. |
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Do not set the stall prevention level ( ) extremely low. |
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6.33.1 |
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If the stall prevention level parameter ( ) is set at or below the no-load current of the |
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motor, the stall preventive function will always be active and increase the frequency when it |
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judges that regenerative braking is taking place. |
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Do not set the stall prevention level parameter ( ) below 30% under normal use |
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conditions. |
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Do not turn on the power before attaching the front cover. |
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When storing inside the cabinet and using with the front cover removed, always close the |
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cabinet doors first and then turn power on. If the power is turned on with the front cover or |
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the cabinet doors open, it may result in electric shock. |
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Make sure that operation signals are off before resetting the inverter after malfunction. |
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3. |
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Mandatory |
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If the inverter is reset before turning off the operating signal, the motor may restart |
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suddenly causing injury. |
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• |
Provide cranes and hoists with sufficient circuit protection such as mechanical braking. |
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6.22 |
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Without sufficient circuit protection, the resulting insufficient motor torque during tuning |
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could create a risk of machine stalling/falling. |
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Caution |
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Reference |
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• |
Observe all permissible operating ranges of motors and mechanical equipment. (Refer to |
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3. |
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the motor's instruction manual) |
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Not observing these ranges may result in injury. |
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Mandatory |
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When sequence for restart after a momentary failure is selected |
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Caution |
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Reference |
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• |
Stand clear of motors and mechanical equipment. |
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5.18.1 |
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If the motor stops due to a momentary power failure, the equipment will start suddenly |
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when power is restored. |
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This could result in unexpected injury. |
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Mandatory |
• |
Attach cautions about sudden restart after a momentary power failure on inverters, motors |
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and equipment for prevention of accidents in advance. |
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When retry function is selected |
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Caution |
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Reference |
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• |
Stand clear of motors and equipment. |
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6.14.1 |
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If the motor and equipment stop when the alarm is given, selection of the retry function will |
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restart them suddenly after the specified time has elapsed and alarm condition has |
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Mandatory |
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disappeared. This could result in unexpected injury. |
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• To prevent accidents, stick caution notices that the inverter has a retry function to the |
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inverter, the motor and the machine. |
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5
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E6581301 |
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Maintenance and inspection |
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I |
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Warning |
Reference |
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• Never replace any part by yourself. |
14.2 |
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This could be a cause of electric shock, fire and bodily injury. To replace parts, call the local |
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sales agency. |
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Prohibited |
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• The equipment must be inspected every day. |
14. |
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If the equipment is not inspected and maintained, errors and malfunctions may not be |
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discovered which could lead to accidents. |
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• Before inspection, perform the following steps. |
14. |
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(1) Turn off all input power to the inverter. |
14.2 |
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Mandatory |
(2) Wait at least 15 minutes and check to make sure that the charge lamp is no longer lit. |
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(3) Use a tester that can measure DC voltage 800VDC or more, and check to make sure |
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that the voltage to the DC main circuits (between PA/+ and PC/-) is 45V or less. |
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If inspection is performed without performing these steps first, it could lead to electric |
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shock. |
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Disposal |
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Caution |
Reference |
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• If you throw away the inverter, have it done by a specialist in industry waste disposal*. |
16. |
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If you throw away the inverter by yourself, this can result in explosion of capacitor or |
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produce noxious gases, resulting in injury. |
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(*) Persons who specialize in the processing of waste and known as “industrial waste product |
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collectors and transporters” or “industrial waste disposal persons.” If the collection, |
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Mandatory |
transport and disposal of industrial waste is done by someone who is not licensed for that |
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job, it is a punishable violation of the law. (Laws in regard to cleaning and processing of |
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waste materials) |
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Attach caution labels
Shown here are examples of caution labels to prevent, in advance, accidents in relation to inverters, motors and
other equipment.
If the inverter has been programmed for auto-restart function after momentary power failure or retry function, place
caution labels in a place where they can be easily seen and read.
If the inverter has been programmed for restart
sequence of momentary power failure, place
caution labels in a place where they can be easily
seen and read.
(Example of caution label)
Caution
(Functions programmed for restart)
Do not go near motors and equipment.
Motors and equipment that have stopped
temporarily after momentary power failure
will restart suddenly after recovery.
If the retry function has been selected, place
caution labels in a location where they can be
easily seen and read.
(Example of caution label)
Caution
(Functions programmed for retry)
Do not go near motors and equipment.
Motors and equipment that have stopped
temporarily after an alarm will restart
suddenly after the specified time has elapsed
and alarm condition has disappeared.
6
E6581301!
Thank you for your purchase of the Toshiba “TOSVERT VF-AS1” industrial inverter.
This instruction manual is intended for inverters with CPU version 154 or later. The CPU version will be frequently upgraded.
II
7
E6581301!
- Contents -
I. Safety precautions ······················································································································································ |
1 |
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I I. Introduction ······························································································································································· |
7 |
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1. |
Read first····························································································································································· |
A-1 |
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1.1 |
Check the product········································································································································ |
A-1 |
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1.2 |
Contents of the product code ······················································································································· |
A-1 |
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1.3 |
Structure of the main body ··························································································································· |
A-2 |
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1.3.1 |
Names and functions ···························································································································· |
A-2 |
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1.3.2 |
Detaching the cover······························································································································ |
A-9 |
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1.3.3 |
Grounding capacitor switching method ································································································· |
A-12 |
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1.3.4 |
Installing the DC reactor························································································································ |
A-16 |
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1.4 |
Notes on the application······························································································································· |
A-17 |
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1.4.1Motors··················································································································································· A-17
1.4.2Inverters················································································································································ A-19
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1.4.3 |
Measure to take against leakage Current ····························································································· |
A-20 |
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1.4.4 |
Installation············································································································································· |
A-22 |
2. |
Connection equipment ········································································································································ |
B-1 |
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2.1 |
Cautions on wiring········································································································································ |
B-1 |
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2.2 |
Standard connections··································································································································· |
B-3 |
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2.3 |
Description of terminals································································································································ |
B-10 |
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2.3.1 |
Main circuit terminals ···························································································································· |
B-10 |
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2.3.2 |
Control circuit terminal block················································································································· |
B-11 |
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2.3.3 |
RS485 communication connector ········································································································· |
B-16 |
3.Operations··························································································································································· C-1
|
3.1 |
Setting/monitor modes ································································································································· |
C-2 |
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3.2 |
Simplified operation of the VF-AS1 ·············································································································· |
C-3 |
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3.2.1 |
Terminal board operation ······················································································································ |
C-3 |
|
3.2.2 |
Panel operation····································································································································· |
C-7 |
4. |
Searching and setting parameters······················································································································· |
D-1 |
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4.1 |
How to set parameters ································································································································· |
D-2 |
|
4.1.1 |
Setting parameters in the selected quick mode ···················································································· |
D-2 |
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4.1.2 |
Setting parameters in the standard setting mode·················································································· |
D-3 |
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4.2 |
Functions useful in searching for a parameter or changing a parameter setting·········································· |
D-4 |
5. |
Basic parameters ················································································································································ |
E-1 |
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5.1 |
History function ············································································································································ |
E-1 |
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5.2 |
Setting acceleration/deceleration time ········································································································· |
E-2 |
|
5.2.1 |
Automatic acceleration/deceleration ····································································································· |
E-2 |
|
5.2.2 |
Manually setting acceleration/deceleration time ··················································································· |
E-3 |
|
5.3 |
Increasing starting torque····························································································································· |
E-3 |
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5.4 |
Setting parameters by operating method ····································································································· |
E-5 |
|
5.5 |
Selection of operation mode ························································································································ |
E-6 |
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5.6 |
Selecting control mode································································································································· |
E-11 |
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5.7 |
Manual torque boost–increasing torque boost at low speeds ······································································ |
E-16 |
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5.8 |
Base frequency ············································································································································ |
E-16 |
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5.9 |
Maximum frequency····································································································································· |
E-17 |
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5.10 |
Upper limit and lower limit frequencies········································································································· |
E-17 |
|
5.11 |
Setting frequency command characteristics································································································· |
E-18 |
|
5.12 |
Preset speed operation (speeds in 15 steps)!··························································································· |
E-18 |
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5.13 |
Selecting forward and reverse runs (operation panel only)·········································································· |
E-21 |
|
5.14 |
Setting the electronic thermal······················································································································· |
E-22 |
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5.15 |
Changing the display unit % to A (ampere)/V (volt)······················································································ |
E-26 |
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5.16 |
Meter setting and adjustment······················································································································· |
E-27 |
i
E6581301!
5.17 |
PWM carrier frequency ································································································································· |
E-31 |
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5.18 |
Trip-less intensification ································································································································· |
E-32 |
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5.18.1 |
Auto-restart (Restart during coasting)···································································································· |
E-32 |
5.18.2Regenerative power ride-through control/Deceleration stop during power failure/
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Synchronized acceleration/deceleration······································································································· |
E-33 |
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5.19 |
Dynamic (regenerative) braking - For abrupt motor stop ·············································································· |
E-36 |
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5.20 |
Standard default setting ································································································································ |
E-42 |
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5.21 |
Searching for all reset parameters and changing their settings ···································································· |
E-44 |
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5.22 |
EASY key function ········································································································································ |
E-45 |
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6. |
Extended parameters··········································································································································· |
F-1 |
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6.1 |
Input/output parameters································································································································ |
F-1 |
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6.1.1 |
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Low-speed signal··································································································································· |
F-1 |
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6.1.2 |
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Putting out signals of arbitrary frequencies···························································································· |
F-2 |
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6.2 |
Input signal selection ···································································································································· |
F-3 |
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6.2.1 |
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Priority when forward/reverse run commands are entered simultaneously············································ |
F-3 |
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6.2.2 |
|
Assigning priority to the terminal board in the operation panel and operation mode ····························· |
F-4 |
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6.2.3 |
|
Analog input signal switching················································································································· |
F-5 |
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|
6.3 |
Terminal function selection···························································································································· |
F-6 |
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|
|
6.3.1 |
|
Keeping an input terminal function always active (ON)·········································································· |
F-6 |
|
|
6.3.2 |
|
Modifying input terminal functions ········································································································· |
F-6 |
|
|
6.3.3 |
|
Using the servo lock function················································································································· |
F-8 |
|
|
6.3.4 |
|
Modifying output terminal functions ······································································································· |
F-8 |
|
|
6.3.5 |
|
Response time of input/output terminals································································································ |
F-9 |
|
|
6.3.6 |
|
Using the V/f adjustment function ········································································································ |
F-9 |
|
|
6.4 |
Basic parameters 2······································································································································· |
F-9 |
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|
6.4.1 |
|
Switching among V/f characteristics 1, 2, 3 and 4 from input terminal··················································· |
F-9 |
|
|
6.5 |
V/f 5-point setting·········································································································································· |
F-11 |
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6.6 |
Speed command switching ··························································································································· |
F-11 |
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6.6.1 |
|
Using two types of frequency !speed" commands················································································ |
F-11 |
|
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6.7 |
Operation frequency ····································································································································· |
F-13 |
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6.7.1 |
|
Start frequency#Stop frequency············································································································· |
F-13 |
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6.7.2 |
|
Run/Stop control with frequency setting signals ···················································································· |
F-13 |
|
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6.7.3 |
|
Frequency setting signal 0Hz dead zone handling function··································································· |
F-14 |
|
|
6.8 |
DC braking···················································································································································· |
F-14 |
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6.8.1 |
|
DC braking············································································································································· |
F-14 |
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6.8.2 |
|
Motor shaft fixing control························································································································ |
F-16 |
|
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6.8.3 |
|
Function of issuing a 0Hz command during a halt················································································· |
F-17 |
|
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6.9 |
Auto-stop in case of lower-limit frequency continuous operation (Sleep/Wake-up function)························· |
F-18 |
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6.10 |
Jog run mode················································································································································ |
F-19 |
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6.11 |
Setting frequency via external contact input (Motor operated pot mop setting) ············································ |
F-20 |
|
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6.12 |
Jump frequency - jumping resonant frequencies ·························································································· |
F-22 |
|
|
|
6.13 |
Preset speed operation frequencies ············································································································· |
F-23 |
|
|
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6.13.1 |
Preset speed operation frequency 8 to 15····························································································· |
F-23 |
|
|
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6.13.2 |
Forced oeration control·························································································································· |
F-23 |
|
|
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6.14 |
Trip-less intensification ································································································································· |
F-24 |
|
|
|
6.14.1 |
Retry function ········································································································································ |
F-24 |
|
|
|
6.14.2 |
Avoiding overvoltage tripping················································································································· |
F-25 |
|
|
|
6.14.3 |
Output voltage adjustment/Supply voltage correction············································································ |
F-25 |
|
|
|
6.14.4 |
Reverse run prohibition·························································································································· |
F-27 |
|
|
|
6.14.5 |
Output voltage waveform selection········································································································ |
F-27 |
|
|
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6.15 |
Drooping control ··········································································································································· |
F-27 |
|
|
|
6.16 |
Light-load high-speed operation function······································································································ |
F-29 |
|
|
|
6.17 |
Braking function············································································································································ |
F-29 |
|
|
|
6.18 |
Acceleration/deceleration suspend function·································································································· |
F-31 |
|
|
|
6.19 |
Commercial power/inverter switching ··········································································································· |
F-32 |
|
|
|
6.20 |
PID control ···················································································································································· |
F-34 |
|
|
|
6.21 |
Stop position control function························································································································ |
F-38 |
ii
E6581301!
6.22 |
Setting motor constants ······························································································································· |
F-38 |
|
|
6.23 |
Increasing the motor output torque further in low speed range···································································· |
F-42 |
|
|
6.24 |
Torque control ·············································································································································· |
F-43 |
|
|
6.24.1 |
Torque command ·································································································································· |
F-43 |
|
|
6.24.2 |
Speed limits in torque control mode······································································································ |
F-43 |
|
|
6.24.3 |
Selection of tension torque bias input and load sharing gain input ······················································· |
F-44 |
|
|
6.25 |
Torque limit··················································································································································· |
F-45 |
|
|
|
||||
6.25.1 |
Torque limit switching···························································································································· |
F-45 |
|
|
6.25.2 |
Torque limit mode selection at acceleration/deceleration······································································ |
F-47 |
|
|
6.26 |
Stall prevention function······························································································································· |
F-49 |
|
|
6.26.1 |
Power running stall continuous trip detection time ················································································ |
F-49 |
|
|
6.26.2 |
Regenerative braking stall prevention mode selection·········································································· |
F-49 |
|
|
6.26.3 |
Stall prevention control switching·········································································································· |
F-49 |
|
|
6.27 |
Current and speed control adjustment ········································································································· |
F-50 |
|
|
6.27.1 |
Current and speed control gain············································································································· |
F-50 |
|
|
6.27.2 |
Prevention of motor current oscillation at light load ·············································································· |
F-50 |
|
|
6.27.3 |
Max output voltage modulation rate······································································································ |
F-50 |
|
|
6.28 |
Fine adjustment of frequency setting signal ································································································· |
F-51 |
|
|
6.29 |
Operating a synchronous motor··················································································································· |
F-51 |
|
|
6.30 |
Acceleration/deceleration 2·························································································································· |
F-52 |
|
6.30.1Setting acceleration/deceleration patterns and switching acceleration/deceleration
|
|
patterns 1, 2, 3 and 4 ···························································································································· |
F-52 |
6.31 |
Pattern operation ········································································································································· |
F-55 |
|
6.32 |
Preset speed mode······································································································································ |
F-57 |
|
6.33 |
Protection functions······································································································································ |
F-58 |
|
6.33.1 |
Setting of stall prevention level ············································································································· |
F-58 |
|
6.33.2 |
Inverter trip record retention·················································································································· |
F-58 |
|
6.33.3 |
Emergency stop···································································································································· |
F-59 |
|
6.33.4 |
Output phase failure detection·············································································································· |
F-60 |
|
6.33.5 |
OL reduction starting frequency············································································································ |
F-61 |
|
6.33.6 |
Motor 150%-overload time limit ············································································································ |
F-61 |
|
6.33.7 |
Input phase failure detections··············································································································· |
F-61 |
|
6.33.8 |
Control mode for low current················································································································· |
F-61 |
|
6.33.9 |
Detection of output short circuit ············································································································ |
F-62 |
|
6.33.10 |
Overtorque trip······································································································································ |
F-62 |
|
6.33.11 |
Cooling fan control selection················································································································· |
F-63 |
|
6.33.12 Cumulative operation time alarm setting······························································································· |
F-64 |
||
6.33.13 |
Abnormal speed detection ···················································································································· |
F-64 |
|
6.33.14 |
Overvoltage limit operation ··················································································································· |
F-65 |
|
6.33.15 |
Undervoltage trip··································································································································· |
F-65 |
|
6.33.16 |
Regenerative power ride-through control level···························································································· |
F-65 |
|
6.33.17 |
Braking answer waiting time ················································································································· |
F-65 |
|
6.33.18 VI/II analog input wire breakage detection level···················································································· |
F-66 |
||
6.33.19 |
Guide to time of replacement················································································································ |
F-66 |
|
6.33.20 Rush current suppression relay activation time ···················································································· |
F-66 |
||
6.33.21 |
Motor thermal protection······················································································································· |
F-67 |
|
6.33.22 |
Braking resistance overload curve········································································································ |
F-67 |
|
6.33.23 Selection of a restart condition for the motor stopped with a mechanical brake ··································· |
F-67 |
||
6.33.24 Protection against a failure of the control power backup device (optional CPS002Z)··························· |
F-68 |
||
6.33.25 Ground fault detection selection ··········································································································· |
F-68 |
||
6.33.26 |
Disconnection detection of remote keypad ··························································································· |
F-69 |
|
6.34 |
Override ······················································································································································· |
F-69 |
|
6.35 |
Adjustment parameters ································································································································ |
F-71 |
|
6.35.1 |
Pulse train output for meters················································································································· |
F-71 |
|
6.35.2 |
Setting of optional meter outputs ·········································································································· |
F-72 |
|
6.35.3 |
Calibration of analog outputs ················································································································ |
F-72 |
|
6.36 |
Operation panel parameter ·························································································································· |
F-73 |
|
6.36.1 |
Prohibition of key operations and parameter settings ··········································································· |
F-73 |
iii
E6581301!
|
|
6.36.2 |
Displaying the rotational speed of the motor or the line speed ······························································ |
F-74 |
|
|
|
6.36.3 |
Changing the steps in which the value displayed changes···································································· |
F-75 |
|
|
|
6.36.4 |
Changing the standard monitor display ································································································· |
F-76 |
|
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6.36.5 |
Canceling the operation command ········································································································ |
F-76 |
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6.36.6 |
Selection of operation panel stop pattern ······························································································ |
F-76 |
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6.36.7 |
Setting of a torque command in panel operation mode ········································································· |
F-77 |
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6.36.8 |
Torque-related parameters for panel operation······················································································ |
F-77 |
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6.37 |
Tracing functions··········································································································································· |
F-77 |
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6.38 |
Integrating wattmeter ···································································································································· |
F-80 |
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6.39 |
Communication function ······························································································································· |
F-81 |
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6.39.1 |
2-wire RS485/4-wire RS485 ·················································································································· |
F-81 |
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6.39.2 |
Open network option······························································································································ |
F-88 |
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6.40 |
My function ··················································································································································· |
F-88 |
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6.41 |
Traverse function ·········································································································································· |
F-88 |
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6.42 |
Instruction manuals for optionally available devices and special functions··················································· |
F-89 |
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7. |
Operation with external signal······························································································································ |
G-1 |
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7.1 |
External operation········································································································································· |
G-1 |
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7.2 |
Applied operation with input and output signals (operation by terminal board)············································· |
G-2 |
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7.2.1 |
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Functions of input terminals (in case of sink logic) ················································································ |
G-2 |
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7.2.2 |
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Functions of output terminals (incase of sink logic) ··············································································· |
G-5 |
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7.2.3 |
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Setup of input terminal operation time ··································································································· |
G-9 |
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7.2.4 |
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Analog input filter··································································································································· |
G-9 |
7.3 |
Setup of external speed command (analog signal)······················································································· |
G-10 |
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7.3.1 |
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Setup by analog input signals (RR/S4 terminal) ···················································································· |
G-11 |
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7.3.2 |
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Setup by analog input signals (VI/II terminal) ························································································ |
G-12 |
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7.3.3 |
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Setup by analog input signals (RX terminal)·························································································· |
G-13 |
8. |
Monitoring the operation status···························································································································· |
H-1 |
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8.1 |
Screen composition in the status monitor mode ··························································································· |
H-1 |
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8.2 |
Monitoring the status····································································································································· |
H-2 |
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8.2.1 |
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Status monitor under normal conditions································································································· |
H-2 |
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8.2.2 |
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Display of detailed information on a past trip ························································································· |
H-5 |
8.3 |
Changing status monitor function·················································································································· |
H-6 |
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8.4 |
Display of trip information ····························································································································· |
H-9 |
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8.4.1 |
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Trip code display···································································································································· |
H-9 |
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8.4.2 |
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Monitor display at tripping······················································································································ |
H-11 |
8.5 |
Display of alarm, pre-alarm, etc. ··················································································································· |
H-13 |
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9. |
Taking measures to satisfy the CE/UL/CSA standards························································································· |
I-1 |
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9.1 |
How to cope with the CE standard················································································································ |
I-1 |
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9.1.1 |
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EMC directive ········································································································································ |
I-1 |
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9.1.2 |
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Measures to satisfy the EMC directive··································································································· |
I-2 |
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9.1.3 |
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Low-voltage directive····························································································································· |
I-7 |
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9.1.4 |
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Measures to be taken to satisfy the low-voltage directive······································································ |
I-7 |
9.2 |
Measures to be taken to satisfy the UL/CSA standards················································································ |
I-8 |
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9.2.1 |
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Caution in installing the inverter············································································································· |
I-8 |
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9.2.2 |
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Caution in wiring and rated current········································································································ |
I-8 |
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9.2.3 |
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Caution as to peripheral devices ··········································································································· |
I-8 |
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9.2.4 |
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Caution as to the protection of motors from overload ············································································ |
I-9 |
10. |
Selection of peripheral devices ···························································································································· |
J-1 |
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10.1 |
Selection of wiring materials and devices ····································································································· |
J-1 |
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10.2 |
Installation of a magnetic contactor··············································································································· |
J-4 |
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10.3 |
Installation of an overload relay ···················································································································· |
J-4 |
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10.4 |
Application and functions of options ············································································································· |
J-5 |
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10.5 |
Optional internal devices······························································································································· |
J-9 |
iv
E6581301!
10.6 |
Connection of a DC power supply and other electric units··········································································· |
J-12 |
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10.6.1 |
Connection of a single-phase 200V power supply················································································ |
J-12 |
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10.6.2 |
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When using the inverter along with a DC power supply········································································ |
J-12 |
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11. |
Table of parameters············································································································································· |
K-1 |
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12. |
Specifications ······················································································································································ |
L-1 |
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12.1 |
Models and their standard specifications ····································································································· |
L-1 |
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12.2 |
Outside dimensions and weight ··················································································································· |
L-5 |
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13. |
Before making a service call - Trip information and remedies············································································· |
M-1 |
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13.1 |
Trip causes/warnings and remedies············································································································· |
M-1 |
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13.2 |
Method of resetting causes of trip ················································································································ |
M-7 |
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13.3 |
If the motor does not run while no trip message is displayed.······································································ |
M-8 |
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13.4 |
How to check other troubles························································································································· |
M-9 |
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14. |
Inspection and maintenance ······························································································································· |
N-1 |
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14.1 |
Regular inspection ······································································································································· |
N-1 |
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14.2 |
Periodical inspection ···································································································································· |
N-2 |
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14.3 |
Making a call for servicing···························································································································· |
N-4 |
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14.4 |
Keeping the inverter in storage ···················································································································· |
N-4 |
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15.Warranty······························································································································································ O-1
16. |
Disposal of the inverter········································································································································ |
P-1 |
v
E6581301!
1.1Check the product
Before using the product you have purchased, check to make sure that it is exactly what you ordered.
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Caution |
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Use an inverter that conforms to the specifications of the power supply and three-phase induction |
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1 |
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motor being used. If the inverter being used does not conform to those specifications, not only will |
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Mandatory |
the three-phase induction motor not rotate correctly, but it may cause serious accidents through |
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overheating and fire. |
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!! |
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Type indication |
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Inverter main unit |
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Name plate |
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VF-AS1 |
3PH-200/240V |
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3.7kW/5HP! |
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Series name
Power supply Type indication Motor capacity!
Carton box |
Warning label |
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Type indication label
Instruction manual
This manual
Name plate
Warning label
DANGER
Risk of injury, electric shock or fire. "!Read the Instruction Manual.
"!Do not open the cover while power is applied or for 15 minutes after power has been removed.
"!Ensure proper earth connection.
Inverter Type Applicable motor
Invert rated output capacity Power supply
Related input current Related output current Serial No.
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1. 2 Contents of the product code |
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Explanation of the type and form written on the label. |
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Special specification code! |
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! |
Type |
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Form |
! ! |
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" # $ % &! |
'! |
(! |
)! *! +! |
,! |
-! |
.! |
'! |
/! |
0! |
'! |
$! |
(! |
(! |
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Model name |
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Voltage class |
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Applicable motor capacity |
Operation panel |
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TOSVERT |
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2:200V~240V |
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004:0.4kW |
450:45kW |
P:Provided |
VF-AS1 series |
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4:380V~480V |
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007:0.75kW |
550:55kW |
! |
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015:1.5kW |
750:75kW |
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022:2.2kW |
900:90kW |
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037:3.7/4.0kW |
110K:110kW |
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055:5.5kW |
132K:132kW |
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075:7.5kW |
160K:160kW |
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110:11kW |
200K:200kW |
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150:15kW |
220K:220kW |
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185:18.5kW |
280K:280kW |
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220:22kW |
355K:355kW |
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300:30kW |
400K:400kW |
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370:37kW |
500K:500kW |
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Additional functions I
L:Built-in EMC filter !
! ! ! +! basic filter
M:Built-in basic filter!
C:Built-in EMC filter!
!
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Additional functions II |
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Special |
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specification code |
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F:External heat sink |
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Y:Others |
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A :Special |
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(non-standard) |
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specification code |
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( is a number) |
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Default interface logic (*1)
H1,HN: US Negative
WN: Negative
WP: Positive
*1): This code represents the factory default logic setting. You can switch from one input/output logic to the other using slide switch SW1. For more details, refer to Section 2.3.2.
Warning : Always shut power off first then check the ratings label of inverter held in a cabinet.
A-1
E6581301!
1. 3 Structure of the main body
1.3.1 Names and functions
1) Outside view
Control circuit terminal cover
Be sure to close the 1 cover before starting the
operation to prevent persons from touching the terminal in error.
Main circuit terminal cover
Be sure to attach the cover before starting the operation to prevent persons from touching the terminal in error.
Operation panel
Inverter type and production No. are on the back side of the control circuit terminal
[Front panel]
! |
Protective cover on the top [Note] |
Wiring port
Ventilation slit
Name plate
Cooling fan
[Bottom view] |
[Side view] |
Note: Remove this cover when installing the inverter side by side with other inverters where the ambient temperature will rise above 40°C. For more details, refer to Section 1.4.4.
A-2
E6581301!
■ Operation panel
RUN lamp
Lights when an ON command is issued but no frequency signal is sent out. It blinks when operation is started.
PRG lamp
Lights when the inverter is in parameter setting mode.
EASY key [Note 1] |
EASY key lamp |
Up key |
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Press this key to control |
Lights when the EASY |
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the function assigned |
key is enabled. |
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with a parameter. |
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MON lamp
Lights when the inverter is in monitor mode. Blinks when the inverter is placed in trip record display mode.
RUN key lamp
Lights when the RUN key is enabled.
RUN key
Pressing this key while the RUN key lamp is lit starts the operation.
STOP key
Pressing this key while the RUN key lamp is lit causes the motor to make a deceleration stop. Press the key twice to reset the inverter after a trip.
RS485 connector/cover
2-wire RS485 connector. This connector is used to connect an optional device, such as an extended control panel.
% lamp
Lights when the unit is %.
Hz lamp
Lights when the unit is
Hz.
1
MODE key
Displays the operation frequency, a parameter, the cause of a failure, and so on.
ENTER key
Up/Down key lamp
With these keys, you can set the operation frequency while the Up/Down key lamp is lit. [Note 2]
Down key
Note 1: For details EASY Key functions, refer to Section 5.22.
Note 2: When parameter is set to , the operation frequency cannot be set even if this lamp is lit.
A-3
E6581301!
2) Main circuit terminal
VFAS1-2004PL~2015PL
VFAS1-4007PL~4022PL
Shorting-bar
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M4 screw |
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Grounding capacitor |
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switch |
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Grounding terminal |
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(M5 screw) |
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Screw hole for EMC plate |
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VFAS1-2022PL, 2037PL |
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VFAS1-4037PL |
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Shorting-bar |
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Grounding capacitor |
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M4 screw |
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switch ! |
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Grounding terminal |
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(M5 screw) |
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Screw hole for EMC plate |
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VFAS1-2055PL |
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VFAS1-4055PL, 4075PL |
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Grounding capacitor |
Shorting-bar |
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M5 screw |
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switch! |
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Grounding terminal |
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Screw hole for EMC plate |
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A-4
E6581301!
VFAS1-2075PL
VFAS1-4110PL
Shorting-bar
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M5 screw |
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Grounding terminal |
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(M5 screw) |
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Screw hole for EMC plate |
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VFAS1-2110PM, 2150PM
VFAS1-4150PL, 4185PL
Grounding capacitor switch!
VFAS1-2185PM, 2220PM
VFAS1-4220PL
Grounding capacitor switch!
Grounding capacitor switch (400V model)!
A: -WN and –WP products. |
B: -HN products only. |
Use crimped ring |
Insert the cables |
lugs of appropriate |
(stripped the |
size on input and |
appropriate length) |
output cables. Attach |
directly into the holes |
to the top side of the |
in the front of the |
terminal block only. |
power terminal block. |
Do not place wires |
Tighten to |
in the hole of the |
recommended torque |
terminal block. |
using the socket |
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head cap screw |
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provided in the |
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terminal block. |
Shorting-bar
M6 screw
Grounding terminal (M5 screw)
Screw hole for EMC plate
M8 screw! |
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Shorting-bar! |
Grounding terminal (M8 screw)!
Screw hole for EMC plate!
Grounding terminal (M5 screw) !
A-5
E6581301!
VFAS1-4300PL, 4370PL
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Grounding capacitor switch! |
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A: -WN and –WP products. |
B: -HN products only. |
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Use crimped ring |
Insert the cables |
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lugs of appropriate |
(stripped the |
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appropriate length) |
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output cables. Attach |
directly into the holes |
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to the top side of the |
in the front of the |
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terminal block only. |
power terminal block. |
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Do not place wires |
Tighten to |
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in the hole of the |
recommended torque |
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terminal block. |
using the socket |
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head cap screw |
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provided in the |
VFAS1-2300PM~2450PM
VFAS1-4450PL~4750PL
Grounding capacitor switch!
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A: -WN and –WP products. |
B: -HN products only. |
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appropriate length) |
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output cables. Attach |
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power terminal block. |
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using the socket |
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VFAS1-2550P |
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VFAS1-4900PC |
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M10 screw! |
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Grounding capacitor switching bar!
M8 screw
Shorting-bar
Grounding terminal (M8 screw)!
Screw hole for EMC plate
Grounding terminal (M5 screw) !
M12 screw |
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Shorting-bar |
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Grounding terminal (M12 screw)
Screw hole for EMC plate
Grounding terminal (M8 screw)
M8 screw!
Grounding terminal(M10 screw)
A-6
E6581301!
VFAS1-2750P
VFAS1-4110KPC
M12 screw
M10 screw!
Grounding capacitor |
1 |
switching bar! |
M4 screw!
M8 screw!
Grounding terminal(M10 screw) !
VFAS1-4132KPC
Grounding
M12 screw! capacitor switching screw!
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M10 screw! |
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M10 screw |
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M4 screw! |
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VFAS1-4160KPC
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Grounding |
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capacitor |
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switching screw! |
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M12 screw! |
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M12 screw! |
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M10 screw! |
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M4 screw! |
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Grounding terminal(M12 screw) |
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A-7
E6581301!
VFAS1-4200KPC~4280KPC
M12 screw!
1 |
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Grounding |
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capacitor |
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switching screw! |
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M4 screw! |
M12 screw! |
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Grounding terminal |
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VFAS1-4355KPC, 4400KPC
Grounding
capacitor M12 screw! switching screw!
M4 screw |
M12 screw! |
VFAS1-4500KPC
Grounding capacitor switching screw!
M4 screw
Grounding terminal (M12 screw)
M12 screw
M12 screw!
Grounding terminal (M12 screw)
A-8
E6581301!
3) Control circuit terminal block
The control circuit terminal block is common to all equipment.
1
!! |
ST-CC Shorting bar |
4-wire RS485 |
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(VFAS1-****-H1, -HN, -WN) |
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connector |
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Control circuit terminal block screw size: M3
For details on all terminal functions, refer to Section 2.3.2.
1.3.2 Detaching the cover
■Main circuit terminal cover
To wire the main circuit terminal for models 200V-15kW or smaller and 400V-18.5kW or smaller, remove the main circuit terminal cover in line with the steps given below.
(A) |
(B) |
90° (1)
(2)
Main circuit terminal
Open the main circuit terminal cover.
*To open the cover, lift it with your finger placed at the part on the right side of the cover.
Remove the main circuit terminal cover.
(1)Turn the screw securing the cover counterclockwise by 90° to release the lock (Do not turn the screw by more than 90°. Or else the screw might be broken.)
(2)Hold the cover by both ends, and then pull up the cover with slightly bending it inward.
A-9
E6581301!
For 200V/0.4kW to 200V/15kW models and 400V/0.75kW to 400V/18.5kW models, cut off the tabs (part A in the figure below) on the main circuit terminal cover if necessary for connecting the cables from the power supply.
200V-0.4kW~3.7/4.0kW |
200V-5.5kW~15kW |
400V-0.75kW~3.7/4.0kW ! |
400V-5.5kW~18.5kW ! |
1 |
A |
A |
■Front cover
To wire the main circuit terminal for models 200V-18.5kW or more and 400V-22kW or more, remove the front cover.
Remove the screw
Main circuit terminal
■ Control circuit terminal cover
To wire the control circuit terminal, open the control circuit terminal cover in line with the steps given below.
(A) (B)
Control circuit terminal
Open the control circuit terminal cover.
*To open the cover, lift it with your finger placed at the part on the right side of the cover.
(2)
(1)
(3)
Remove the terminal, if necessary.
*To do so, open the main circuit terminal cover, loosen the screws that fix the terminal, using a (-) screwdriver or torx
(T20H) screwdriver, placed your finger on part and pull out the terminal.
A-10
E6581301!
■Charge lamp
This lamp is lit when a high voltage remains in the inverter. When removing the main circuit terminal cover or opening the front cover, be sure to check that this lamp is off and follow the instructions about wiring on page 4.
The mounting position of the charge lamp varies from model to model.
VFAS1-2004PL~2150PM!
VFAS1-4007PL~4185PL
This lamp is placed behind the main circuit terminal cover.
1
Charge lamp
VFAS1-2185PM~2450PM VFAS1-4220PL~4750PL
VFAS1-2550P, 2750P VFAS1-4900PC~4500KPC
Charge lamp
Charge lamp
A-11
E6581301!
1.3.3 Grounding capacitor switching method
The inverter is grounded through a capacitor. The leakage current from the inverter can be reduced using the selector switch, switching bar or switching screw (depending on the model). This switching device is used to detach the capacitor from the grounding circuit or to reduce its capacitance.
Some models have capacitors that can be detached completely, while others have capacitances that can be reduced. Note 1:Without the capacitor, the inverter does not comply with the EMC directive.
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■ 200V/45kW - 400V/75kW models and smaller: Grounding capacitor switch |
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Warning |
1 |
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!When attaching or detaching the capacitor, be sure to turn off power. |
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!When the grounding capacitor is detached from the inverter with a capacity of 400V-3.7kW or |
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less, be sure to set the carrier frequency ( ) to 4kHz or less. |
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Prohibited |
If the carrier frequency is set above 4kHz, the inverter may overheat and become damaged. |
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!When the grounding capacitor is detached from the inverter and the cables connecting the |
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inverter to the motor are 100 m or more in length with a capacity between 400V-5.5kW and |
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400V-18.5kW, be sure to set the carrier frequency ( ) to 4kHz or less. |
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If the carrier frequency is set above 4kHz, the inverter may overheat and become damaged. |
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!When installing or operating the inverter within an ungrounded system or within a |
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high-resistance grounding system, set the grounding capacitor switch to Small. |
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Any other setting may result in a system malfunction or overheating. |
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200V! 0.4kW#15kW |
200V |
0.4kW~7.5kW, 18.5kW, 22kW |
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400V" 0.75kW#18.5kW |
400V |
0.75kW~18.5kW |
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To connect to the ground, push in. |
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(Factory default position) |
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*3 |
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*3 |
*1 |
To disconnect fom the ground, pull up. |
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*1: Refer to Section 1.3.1 for the
position of the switch.
200V! 18.5kW#45kW
400V" 22kW#75kW
*2: Refer to next pages for the
position of the switch.
*3: For 400V-3.7kW model and less, the switch is fixed with a label saying “CF/SFr 4kHz.” If such a label is affixed to your inverter, you should set the carrier frequency ( ) at 4kHz or less according to the instructions when switching.
200V 11kW, 15kW, 30kW~45kW
400V 22kW~75kW
Large Small
To change the capacitance to Large,
push in.
(Factory default position)
Large Small
To change the capacitance to Small,
pull up.
A-12
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200V! 18.5#22kW |
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400V! |
22kW |
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$%&'!(! |
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200V/400V |
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class |
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Large |
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Grounding capacitor |
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Small |
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switch |
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Large
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400V class
400V! 30kW)37kW
$%&'!(!
Small
Grounding capacitor
switch
Large
200V! 30kW#45kW
400V! 45kW#75kW
$%&'!(!
Grounding capacitor switch
Large
Small
A-13
E6581301!
1
E6581301!
■ 200V/55kW models and larger 400V/90kW, 110kW models: Grounding capacitor switching bar
Large
Small
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Large |
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To change the capacitance to Large, secure the upper end of the grounding capacitor switching bar to the inverter chassis with a screw.
To change the capacitance to Small, remove the screw that fixes the upper end of the grounding capacitor switching bar and turn the switching bar, as shown in the figure .
(Factory default position)
Warning
In case of one phase grounding system (A three-phase supply power is connected in delta), isolated neutral system, or high resistance grounding system, do not change the connection of
Prohibited grounding capacitor before factory setting.
If connection changed (this means the capacitance is increased), the capacitor may become damaged.
Note: If a neutral grounding system is used, 400V-90kW and 110kW models meet required EMC directive by changing the connection of the grounding capacitor as shown in the figure at the top (changing the capacitance from Small to Large).
■400V/132kW models and larger: Grounding capacitor screw «132kW, 160kW»
Large |
To change the capacitance to |
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Large, fix to A with the grounding |
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Small, fix to B with the grounding |
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capacitor screw. |
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(Factory default position) |
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Warning
In case of one phase grounding system (A three-phase supply power is connected in delta), isolated neutral system, or high resistance grounding system, do not change the connection of
Prohibited grounding capacitor before factory setting.
If connection changed (this means the capacitance is increased), the capacitor may become damaged.
Note: If a neutral grounding system is used, changing the connection of the grounding capacitor as shown in the figure at the top (changing the capacitance from Small to Large) makes the inverter compliant with the EMC directive.
A-14
E6581301!
«200kW~280kW»
Large Small
A
B
Large Small
To change the capacitance to Large, fix to A with the grounding capacitor screw.
To change the capacitance to |
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Small, fix to B with the grounding |
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capacitor screw. |
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(Factory default position) |
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Warning
In case of one phase grounding system (A three-phase supply power is connected in delta), isolated neutral system, or high resistance grounding system, do not change the connection of
Prohibited grounding capacitor before factory setting.
If connection changed (this means the capacitance is increased), the capacitor may become damaged.
Note: If a neutral grounding system is used, changing the connection of the grounding capacitor as shown in the figure at the top (changing the capacitance from Small to Large) makes the inverter compliant with the EMC directive.
«355kW~500kW»
To change the capacitance to
Large Small
Large, fix to A with the grounding capacitor screw.
A A
B B
To change the capacitance to Large Small Small, fix to B with the grounding
capacitor screw. (Factory default position)
Warning
In case of one phase grounding system (A three-phase supply power is connected in delta), isolated neutral system, or high resistance grounding system, do not change the connection of
Prohibited grounding capacitor before factory setting.
If connection changed (this means the capacitance is increased), the capacitor may become damaged.
Note: If a neutral grounding system is used, changing the connection of the grounding capacitor as shown in the figure at the top (changing the capacitance from Small to Large) makes the inverter compliant with the EMC directive.
A-15
E6581301!
1.3.4 Installing the DC reactor!
■ How to install (Example: VFAS1-4160KPC)
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Front panel
Connect the reactor unit to the PO and PA/+ terminals on the main-circuit terminal board. Then connect the supplied earth wire.
See the figures on the next page. Fix the front cover after connecting.
*+,
Secure the cover, front panel and top panel to the reactor case with screws.
A-16
E6581301!
■ Example of wiring of each model
!
«VFAS1-2550P, 2750P» |
«VFAS1-4900PC~4132KPC» |
«VFAS1-4160KPC~4280KPC» |
1
$-! $(./! |
Earth cable |
PO |
PA/+ |
PO |
PA/+ Earth cable! |
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«VFAS1-4355KPC~4500KPC» !
PO.1 |
PA/+ |
PO.2 |
Earth cable! |
1.4Notes on the application
1.4.1 Motors
Keep the following in mind when using the VF-AS1 to drive a motor.
Caution
Use an inverter that conforms to the specifications of power supply and three-phase induction motor being used. If the inverter being used does not conform to those specifications, not only will the
three-phase induction motor not rotate correctly, but it may cause serious accidents through Mandatory overheating and fire.
Comparisons with commercial power operation
The VF-AS1 Inverter employs the sinusoidal PWM system to supply the motor. This is why compared to operation
with a commercial power there will be a slight increase in motor temperature, noise and vibration. The main supply
voltage and current will also be distorted due to harmonic distortion while increase the line current.
Operation in the low-speed area
When running continuously at low speed in conjunction with a general purpose motor, there may be a decline in
that motor's cooling effect. If this happens, operate with the output decreased from rated load.
To carry out low-speed operation continuously at the rated torque, we recommend to use a inverter rated motor or
a forced cooled motor designed for use with an inverter. When operating in conjunction with a inverter rated motor, you must change the inverter's motor overload protection level to VF motor use ( ).
Adjusting the overload protection level
The VF-AS1 Inverter protects against overloads with its electronic thermal overload detection circuits. The
electronic thermal's reference current of the inverter must be adjusted in line with the rated current of the motor
being used in combination.
A-17