Miki Pulley V6 Instruction Manual

Instruction Manual

Compact Inverter

V6 series

Thank you for purchasing our V6 series of inverters.

• This product is designed to drive a three-phase indu ction motor. Read through this instruction manual and be familiar with the handling procedure for correct use.

• Improper handling might result in incorrect operation, a short life, or even a failure of this product as well as the motor.

• Deliver this manual to the end user of this product. Keep this ma nual in a safe place until this product is discarded.

• For how to use an optional device, refer to the instruction and installation manuals for that optional device.



Miki Pulley Co., Ltd. TRS-IV-008

[ IBD#D-I-25-B ]

Preface

Thank you for purchasing our V6 series of inverters. This product is designed to drive a three-phase induction motor. Read through this instruction

manual and be familiar with proper handling and operation of this product. Improper handling might result in incorrect operation, a short life, or even a failure of this product as

well as the motor. Have this manual delivered to the end user of this product. Keep this manual in a safe pla ce until this

product is discarded. The materials are subject to change without notice. Be sure to obtain the latest editions for use.

Japanese Guideline for Suppressing Harmonics in Home Electric and General-purpose Appliances

Three-phase, 200 V series inverters of 3.7 (4.0) kW or less are the products specified in the "Japanese Guideline for Suppressing Harmonics in Home Electric and General-purpose Appliances" (established in September 1994 and revised in October 1999), published by the Ministry of International Trade and Industry (currently the Ministry of Economy, Trade and Industry (METI)). The Japan Electrical Manufacturers' Association (JEMA) has established a standard of regulation levels based on this guideline. To meet this standard, a reactor (for harmonic suppression) must be connected to an inverter . It is re commended that y ou use one o f the DC rea ctors listed in this manual. If you choose to prepare a reactor other than the ones listed, however, it is suggested that you consult your representative for the specifications.

 Safety precautions

Read this manual thoroughly before proceeding with installation, connections (wiring), operation, or maintenance and inspection. Ensure you have sound knowledge of the device and familiarize yourself with all safety information and precautions before proceeding to operate the inverter.

Safety precautions are classified into the following two categories in this manual.

Failure to heed the information indicated by this symbol may lead to dangerous conditions, possibly resulting in death or serious bodily injuries.

Failure to heed the information indicated by this symbol may lead to dangerous conditions, possibly resulting in minor or light bodily injuries and/or substantial property damage.

Failure to heed the information contained under the CAUTION title can also result in serious consequences. These safety precautions are of utmost importance and must be observed at all times.

Application

• V6 series is designed to drive a three-phase induction motor. Do not use it for single-phase motors or for other purposes.

Fire or an accident could occur.

• V6 series may not be used for a life-support system or other purposes directly related to the human safety .

• Though V6 series is manufactured under strict quality control, install safety devices for applications where serious accidents or material losses are foreseen in relation to the failure of it.

An accident could occur.

Installation

• Install the inverter on a nonflammable material such as metal.

Otherwise fire could occur.

• Do not place flammable matter nearby.

Doing so could cause fire.

• Do not support the inverter by its terminal block cover during transportation.

Doing so could cause a drop of the inverter and injuries.

• Prevent lint, paper fibers, sawdust, dust, metallic chips, or other foreign materials from getting into the inverter or from accumulating on the heat sink.

Otherwise, a fire or an accident might result.

• Do not install or operate an inverter that is damaged or lacking parts.

Doing so could cause fire, an accident or injuries.

• Do not get on a shipping box.

• Do not stack shipping boxes higher than the indicated information pri nted on th ose boxes.

Doing so could cause injuries.

Wiring

• When wiring the inverter to the power source, insert a recommended molded case circuit breaker (MCCB) or residual-current-operated protective device (RCD)/earth leakage circuit breaker (ELCB) (with overcurrent protection) in the path of power lines. Use the devices within the recommended current range.

• Use wires in the specified size.

Otherwise, fire could occur.

• Do not use one multicore cable in order to connect several inverters with motors.

• Do not connect a surge killer to the inverter's output (secondary) circuit.

Doing so could cause fire.

• Be sure to connect the grounding wires without fail.

iii

Otherwise, electric shock or fire could occur.

• Qualified electricians should carry out wiring.

• Be sure to perform wiring after turning the power off.

• Ground the inverter following Class C or Class D specifications or national/local electric code, depending on the input voltage of the inverter.

Otherwise, electric shock could occur.

• Be sure to perform wiring after installing the inverter body.

Otherwise, electric shock or injuries could occur.

• Ensure that the number of input phases and the rated voltage of the product match the number of phases and the voltage of the AC power supply to which the product is to be connected.

Otherwise fire or an accident could occur.

• Do not connect the power source wires to output terminals (U, V, and W).

• Do not insert a braking resistor between terminals P (+) and N (-), P1 and N (-), P (+) and P1, DB and N (-), or P1 and DB.

Doing so could cause fire or an accident.

• Wire the three-phase motor to terminals U , V, and W of the inverter, aligning phases each other.

Otherwise injuries could occur.

• The inverter, motor and wiring generate electric noise. Take care of malfunction of the nearby sensors and devices. To prevent the motor from malfunctioning, implement noise control measures.

Otherwise an accident could occur.

Operation

Be sure to install the terminal block cover before turning the power on. Do not remove the

cover while power is applied.

Otherwise electric shock could occur.

• Do not operate switches with wet hands.

Doing so could cause electric shock.

• If the retry function has been selected, the inverter may automatically rest art and driv e the motor depending on the cause of tripping.

(Design the machinery or equipment so that human safety is ensured after restarting.)

• If the stall prevention function (current limiter), automatic deceleration, and overload prevention control have been selected, the inverter may operate at an acceleration/deceleration time or frequency different from the set ones. Design the machine so that safety is ensured even in such cases.

Otherwise an accident could occur.

• The STOP key is only effective when function setting (Function code F02) has been established to enable the STOP key. Prepare an emergency stop sw itch sep arately. If you disable the STOP key priority function and enable operation by external commands, you cannot emergency-stop the inverter using the STOP key on the built-in keypad.

• If an alarm reset is made with the operation signal turned on, a sudden start will occur. Ensure that the operation signal is turned off in advance.

Otherwise an accident could occur.

• If you enable the "restart mode af ter instantaneous power failure" (Function code F14 = 4 or 5), then the inverter automatically restarts running the motor when the power is recovered.

(Design the machinery or equipment so that human safety is ensured after restarting.)

• If you set the function codes wrongly or without completely understanding this instruction manual, the motor may rotate with a torque or at a speed not permitted for the machine.

An accident or injuries could occur.

• Do not touch the inverter terminals while the power is applied to the inverter even if the inverter stops.

Doing so could cause electric shock.

• Do not turn the main circuit power on or off in order to start or stop inverter operation.

Doing so could cause failure.

• Do not touch the heat sink or braking resistor because they become very hot.

Doing so could cause burns.

• Setting the inverter to high speeds is easy. Before changing the freque ncy (speed) setting, check the specifications of the motor and machinery.

• The brake function of the inverter does not provide mechanical holding means.

Injuries could occur.

Installation and wiring of an option card

• Before installing an RS485 Communications Card, turn off the power, wait more than five minutes, and make sure, using a circuit tester or a similar instrument, that the DC link circuit voltage between the terminals P (+) and N (-) has dropped below a safe voltage (+25 VDC).

• Do not remove the terminal cover for the control circuits while power is applied, because high voltage lines exist on the RS485 Communications Card.

Failure to observe these precautions could cause electric shock.

• In general, sheaths and covers of the control signal cables and wires are not specifically designed to withstand a high electric field (i.e., reinforced insulation is not applied). Therefore, if a control signal cable or wire comes into direct conta ct with a live conductor of the main circuit, the insulation of the sheath or the cover might break down, which would ex

ose the signal wire to a high voltage of the main circuit. Make sure that the control

signal cables and wires will not come in to cont act w ith liv e condu ctors of the main circuit s.

Failure to observe these precautions could cause electric shock and/or an

accident.

Maintenance and inspection, and parts replacement

• Turn the power off and wait for at least five minutes before starting inspection. Further, check that the LED monitor is unlit, and che ck the DC lin k circuit volt age between the P (+) and N (-) terminals to be lower than 25 VDC.

Otherwise, electric shock could occur.

• Maintenance, inspection, and parts replacement should be made only by qualified persons.

• Take off the watch, rings and other metallic matter before starting work.

• Use insulated tools.

Otherwise, electric shock or injuries could occur.

Disposal

• Handle the inverter as an industrial waste when disposing of it.

Otherwise injuries could occur.

Others

• Never attempt to modify the inverter.

Doing so could cause electric shock or injuries.

GENERAL PRECAUTIONS

Drawings in this manual may be illustrated without covers or safety shields for explanation of detail parts. Restore the covers and shields in the original state and observe the description in the manual before starting operation.

Conformity to the Low Voltage Directive in the EU

If installed according to the guidelines given below, inverters marked with CE or TÜV are considered as compliant with the Low Voltage Directive 73/23/EEC.

1. The ground terminal G should always be connected to the ground. Do not use only a residual-current-operated protective device (RCD)/earth leakage circuit breaker (ELCB)* as the sole method of electric shock

rotection. Be sure to use ground wires whose size is

greater than power supply lines. *

With overcurrent protection.

2. When used with the inverter, a molded case circuit breaker (MCCB), residual-current-operated protect ive device (RCD)/ earth leakage circuit breaker (ELCB) or magnetic contactor (MC) should conform to the EN or IEC standards.

3. When you use a residual-current-operated protective device (RCD)/earth leakage circuit breaker (ELCB) for protection from electric shock in direct or indirect contact pow er lines or nodes, be sure to install type B of RCD/ELCB on the input (primary) of the inverter if the power source is three-phase 200/400 V. For single-phase 200 V power supplies, use type A.

When you use no RCD/ELCB, take any other protective measure that isolates the electric

equipment from other equipment on the same power supply line using double or reinforced insulation or that isolates the power supply lines connected to the electric equipment using an isolation transformer.

4. The inverter should be used in an environment that does not exceed Pollution Degree 2 requirements. If the environment conforms to Pollution Degree 3 or 4, install the inverter in an enclosure of IP54 or higher.

5. Install the inverter, AC or DC reactor, input or output filter in an enclosure with minimum degree of protection of IP2X (Top surface of enclosure shall be minimum IP4X when it can be easily accessed), to prevent human body from touching directly to live parts of these equipment.

6. To make an inverter with no integrated EMC filter conform to the EMC directive, it is necessary to connect an external EMC filter to the inverter and install them properly so that the entire equipment including the inverter conforms to the EMC directive.

7. Do not connect any copper wire directly to grounding terminals. Use crimp terminals with tin or equivalent plating to connect them.

8. To connect the three-phase or single-phase 200 V series of inverters to the po wer supply in Overvoltage Category III or to connect the 3-phase 400 V series of inverters to the power supply in Overvoltage Category II or III, a supplementary insulation is required for the control circuitry.

9. When you use an inverter at an altitude of more than 2000 m, you should apply basic insulation for the control circuits of the inverter. The inverter cannot be used at altitudes of more than 3000 m.

10. The power supply mains neutral has to be earthed for the three-phase 400 V class inverter .

vii

Conformity to the Low Voltage Directive in the EU (Continued)

11. Use wires listed in EN60204 Appendix C.

MCCB: Molded case circuit breaker RCD: Residual-current-operated protective device ELCB: Earth leakage circuit breaker

*1 The frame size and model of the MCCB or RCD/ELCB (with overcurrent protection) will vary,

depending on the power transformer capacity. Refer to the related technical documentation for details.

*2 The recommended wire size for main circuits is for the 70°C 600V PVC wires used at an ambient

temperature of 40°C.

*3 In the case of no DC reactor, the wire sizes are determined on the basis of the effective input

current calculated under the condition that the power supply capacity and impedance are 500 kVA and 5%, respectively.

Recommended wire size (mm2 )

Rated current (A)

MCCB or RCD/ELCB

*2 Main circuit power input

[L1/R, L2/S, L3/T]

[L1/L, L2/N]

Grounding [

Power supply voltage

Applicable motor rating

(kW)

Inverter type

w/ DCR

w/o DCR

w/ DCR*3w/o DCR

Inverte

r output

[U, V,

DCR

[P1,

P (+)]

Braking resistor

[P (+),

DB]

Control

circuit

(30A,

30B, 30C)

0.1 V6-01-4

0.2 V6-02-4

0.4 V6-04-4

0.75 V6-07-4

1.5 V6-15-3 16

2.2 V6-22-3

2.5 2.5

Three-phase 200 V

3.7 V6-37-3 20 35

2.5

4 4

2.5 0.5

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Conformity to UL standards and Canadian standards (cUL certification)

If installed according to the guidelines giv en below, inverters marked with UL/cUL are consider ed a s compliant with the UL and CSA (cUL certified) standards.

1. Solid state motor overload protection (motor protection by ele ctroni c thermal ov erload relay ) is provided in each model. Use function codes F10 to F12 to set the protection level.

2. Connect the power supply satisfying the characteristics sh own in the tabl e below as an input power supply of the inverter.(Short circuit rating)

3. Use 75°C Cu wire only.

4. Use Class 1 wire only for control circuits.

5. Field wiring connection must be made by a UL Listed and CSA Certified clo sed-loop terminal connector sized for the wire gauge involved. Connector must be fixed using the crimp tool specified by the connector manufacturer.

Short circuit rating

Suitable for use on a circuit capable of deliv ering not mor e than B rms sy mmetrical amperes, A volts maximum.

Power supply voltage

Inverter type Power supply max. voltage A Power supply current Ｂ

V6-01-4 V6-02-4 V6-04-4 V6-07-4

V6-15-3 V6-22-3

Three-

phase

200V

V6-37-3

240 VAC 100,000 A or less

Conformity to UL standards and Canadian standards (cUL certification) (Continued)

6. Install UL certified fuses between the power supply and the inverter, referring to the table below.

*1: Denotes the relay contact terminals for 30A, 30B and 30C. *2: Denotes control terminals except for 30A, 30B and 30C.



Required torque

Ib-in (N·m)

Wire size

AWG or kcmil (mm

)

Control circuit Control circuit

Power supply

voltage

Inverter type

Main

terminal

TERM1

*2 TERM2-1 TERM2-2

Main

terminal

TERM1

*2 TERM2-1 TERM2-2

Class J fuse

current (A)

V6-01-4 3 V6-02-4 6

V6-04-4 10 V6-07-4

10.6

(1.2)

15 V6-15-3 20 V6-22-3

Three-phase

200V

V6-37-3

15.9

(1.8)

3.5

(0.4)

1.8

(0.2)

(0.5)

 Precautions for use

Torque characteristics and temperature rise

When the inverter is used to run a general-purpose motor , the temperature of the motor becomes higher than when it is operated using a commercial power supply. In the low-speed range, the cooling effect will be weakened, so decrease the output torque of the motor. If constant torque is required in the low-speed range, use a inverter motor or a motor equipped with an externally powered ventilating fan.

Vibration

When an inverter-driven motor is mounted to a machine, resonance may be caused by the natural frequencies of the machine system.

Note that operation of a 2-pole motor at 60 Hz or higher may cause abnormal vibration.

* The use of a rubber coupling or vibration dampening rubbe r

is recommended.

* Use the inverter's jump frequency control feature to skip

the resonance frequency zone(s).

In running generalpurpose motors

Noise

When an inverter is used with a general-purpose motor, the motor noise level is higher than that with a commercial power supply. To reduce noise, raise carrier frequency of the inverter. Operation at 60 H z or higher can also result in higher noise level.

High-speed motors

If the set frequency is set to 120 Hz or more to drive a high-speed motor, test-run the combination of the inverter and motor beforehand to check for safe operation.

Explosion-proof motors

When driving an explosion-proof motor with an inverter , u se a combination of a motor and an inverter that has been approved in advance.

Submersible motors and pumps

These motors have a larger rated current than general-purpose motors. Select an inverter whose rated output current is greater than that of the motor.

These motors differ from general-purpose motors in thermal characteristics. Set a low value in the thermal time constant of the motor when setting the electronic thermal function.

Brake motors

For motors equipped with parallel-connected brakes, their braking power must be supplied from the primary circuit. If the brake power is connected to the inverter's power output circuit by mistake, the brake will not work.

Do not use inverters for driving motors equipped with series-connected brakes.

Geared motors

If the power transmission mechanism uses an oil-lubricated gearbox or speed changer/reducer, then continuous motor operation at low speed may cause poor lubrication. Avoid such operation.

In running special motors

Synchronous motors

It is necessary to take special measures suitable for this motor type. Contact your Miki Pulley representative for details.

In running special motors

Single-phase motors

Single-phase motors are not suitable for inverter-driven variable speed operation. Use three-phase motors.

* Even if a single-phase power supply is available, use a

three-phase motor as the inverter provides three-phase output.

Environmental conditions

Installation location

Use the inverter within the ambient temperature range from

-10 to +50°C. The heat sink and braking resistor of the inverter may

become hot under certain operating conditions, so install the inverter on nonflammable material such as metal.

Ensure that the installation location meets the environmental conditions specified in Chapter 2, Section 2.1 "Operating Environment."

Installing an MCCB or RCD/ELCB

Install a recommended molded case circuit breaker (MCCB) or residual-current-operated protective device (RCD)/earth leakage circuit breaker (ELCB) (with overcurrent protection) in the primary circuit of the inverter to protect the wiring. Ensure that the circuit breaker capacity is equivalent to or lower than the recommended capacity.

Installing an MC in the secondary circuit

If a magnetic contactor (MC) is mounted in the inverter's secondary circuit for switching the motor to commercial power or for any other purpose, ensure that both the inverter and the motor are completely stopped before you turn the MC on or off.

Do not connect a magnet contactor united with a surge killer to the inverter's secondary circuit.

Installing an MC in the primary circuit

Do not turn the magnetic contactor (MC) in the primary circuit on or off more than once an hour as an inverter failure may result.

If frequent starts or stops are required during motor operation, use FWD/REV signals or the RUN/STOP key.

Protecting the motor

The electronic thermal function of the inverter ca n protec t the motor. The operation level and the motor type (general-purpose motor, inverter motor) should be set. For high-speed motors or water-cooled motors, set a small value for the thermal time constant and protect the motor.

If you connect the motor thermal relay to the motor with a long wire, a high-frequency current may flow into the wiring stray capacitance. This may cause the relay to trip at a current lower than the set value for the thermal relay. If this happens, lower the carrier frequency or use the output circuit filter (OFL).

Discontinuance of power-factor correcting capacitor

Do not mount power-factor correcting capacitors in the inverter’s primary circuit. (Use the DC reactor to improve the inverter power factor.) Do not use power-factor correcting capacitors in the inverter output circuit. An overcurrent trip will occur, disabling motor operation.

Combination with peripheral devices

Discontinuance of surge killer

Do not connect a surge killer to the inverter's secondary circuit.

xii

Reducing noise

Use of a filter and shielded wires is typically recommended to satisfy EMC directives.

Measures against surge currents

If an overvoltage trip occurs while the inverter is stopped or operated under a light load, it is assumed that the surge current is generated by open/close of the phase-advancing capacitor in the power system.

* Connect a DC reactor to the inverter.

Combination with peripheral devices

Megger test

When checking the insulation resistance of the inverter , u se a 500 V megger and follow the instructions contained in Chapter 7, Section 7.4 "Insulation Test."

Control circuit wiring length

When using remote control, limit the wiring length between the inverter and operator box to 20 m or less and u se tw isted pair or shielded cable.

Wiring length between inverter and motor

If long wiring is used between the inverter and the motor, the inverter will overheat or trip as a result of overcurrent (high-frequency current flowing into the stray capacitance) in the wires connected to the phases. Ensure that the wiring is shorter than 50 m. If this length must be ex ceeded, lower the carrier frequency or mount an output circuit filter (OFL).

Wiring size

Select wires with a sufficient capacity by referring to the current value or recommended wire size.

Wiring type

Do not use one multicore cable in order to connect several inverters with motors.

Wiring

Grounding Securely ground the inverter using the grounding terminal.

Driving general-purpose motor

Select an inverter according to the applicable motor ratings listed in the standard specifications table for the inverter.

When high starting torque is required or quick accelera tion or deceleration is required, select an inverter with a capacity one size greater than the standard.

Selecting inverter capacity

Driving special motors

Select an inverter that meets the following condition: Inverter rated current > Motor rated current

Transportation and storage

When transporting or storing inverters, follow the procedures and select locations that meet the environmental conditions listed in Chapter 1, Section 1.3 "Transportation" and Section 1.4 "Storage Environment."

xiii

How this manual is organized

This manual is made up of chapters 1 through 11.

Chapter 1 BEFORE USING THE INVERTER

This chapter describes acceptance inspection and precautions for transportation and storage of the inverter.

Chapter 2 MOUNTING AND WIRING OF THE INVERTER

This chapter provides operating environment, precautions for installing the inverter, wiring instructions for the motor and inverter.

Chapter 3 OPERATION USING THE KEYPAD

This chapter describes inverter operation using the keypad. The inverter features three operation modes (Running, Programming and Alarm modes) which enable you to run and stop the motor, monitor running status, set function code dat a, display running in formation required for maintenance, and display alarm data.

Chapter 4 OPERATION

This chapter describes preparation to be made before running the motor for a test and practical operation.

Chapter 5 FUNCTION CODES

This chapter provides a list of the function codes. Fun ction codes to be used o ften and irregular ones are described individually.

Chapter 6 TROUBLESHOOTING

This chapter describes troubleshooting procedures to be followed w hen the inverter malfun ctio ns or detects an alarm condition. In this chapter, first check whether any alarm code is displayed or not, and then proceed to the troubleshooting items.

Chapter 7 MAINTENANCE AND INSPECTION

This chapter describes inspection, measurement and insulation test which are required for safe inverter operation. It also provides information about periodical replacement parts and guarantee of the product.

Chapter 8 SPECIFICATIONS

This chapter lists specifications including output ratings, control system, external dimensions and protective functions.

Chapter 9 LIST OF PERIPHERAL EQUIPMENT AND OPTIONS

This chapter describes main peripheral equipment and options which can be connected to the V6 series of inverters.

Chapter 10 APPLICATION OF DC REACTOR (DCRs)

This chapter describes a DC reactor that suppresses input harmonic component current.

Chapter 11 COMPLIANCE WITH STANDARDS

This chapter describes standards with which the V6 of inverters comply.

xiv

Icons

The following icons are used throughout this manual.

This icon indicates information w hich, if not h eeded, can re sult in the inv erter not operating to full efficiency, as well as information concerning incorrect operations and settings which can result in accidents.

This icon indicates information that can prove handy when performing certain settings or operations.



This icon indicates a reference to more detailed information.

Table of Contents

Preface ............................................................i

 Safety precautions................................................. ii

 Precautions for use...............................................xi

How this manual is organized................................ xiv

1-1

Chapter 1 BEFORE USING THE INVERTER

1.1 Acceptance Inspection

Unpack the package and check that: (1) An inverter and instruction manual (this manual) is contained in the package. (2) The inverter has not been damaged during transportation—there should be no dents or parts

missing.

(3) The inverter is the model you ordered. You can check the model name and specifications on the

main nameplate. (Main and sub nameplates are attached to the inverter and are located as shown on the following page.)

(a) Main Nameplate (b) Sub Nameplate

Figure 1.1 Nameplates

TYPE: Type of inverter



Code Series name FRN V6 series

Code Assemble motor rating 01 0.1 kW 02 0.2 kW 04 0.4 kW 07 0.75 kW 15 1.5 kW 22 2.2 kW 37 3.7 kW

SOURCE: Number of input phases, input voltage, input frequency, input current OUTPUT: Number of output phases, rated output capacity, rated output voltage, output

frequency range, rated output current, overload capacity

MFG. No.: Product number

BN03

Z 01- 001

Serial number of production lot Production month 1 to 9: January to September

X, Y, or Z: October, November, or December Production year: Last digit of year

If you suspect the product is not working properly or if you have any questions about your product, contact your MikiPulley representative.

TYPE MFG No.

V6-15-3 BN03Y001

Code Brake

3 W/O Braking 4 Braking resistor built-in type

V 6 - 01 - 4

1-2

1.2 External View and Terminal Blocks

(1) External views



Figure 1.2 External Views of V6

(2) View of terminals



(a) V6-07-4 (b) V6-15-3

(* When connecting the RS485 communications cable, remove the control

circuit terminal block cover and cut off the barrier provided in it using nippers.)

Figure 1.3 Bottom View of V6

1.3 Transportation

• When carrying the inverter, always support its bottom at the front and rear sides with both hands. Do not hold covers or individual parts only. You may drop the inverter or break it.

• Avoid applying excessively strong force to the terminal block covers as they are made of plastic and are easily broken.

Barrier for the RS485 communications port*

Control signal cable port

Cooling fan

L1/R, L2/S, L3/T, P1, P (+), N (-) wire port

L1/R, L2/S, L3/T, U, V, W, grounding wire port

DB, U, V, W, grounding wire por

Heat sink

DB, P1, P (+) and N (-) wire port

Keypad

Main nameplate

Control circuit terminal bock cover

Control circuit terminal block cover

Main circuit terminal block cover

Sub nameplate

Main nameplate

1-3

1.4 Storage Environment

1.4.1 Temporary storage

Store the inverter in an environment that satisfie s the requirements listed in T able 1.1.

Table 1.1 Environmental Requirements for Storage and Transportation

Item Requirements

Storage temperature *

-25 to +70°C

Relative humidity

5 to 95% *2

Locations where the inverter is not subject to abrupt changes in temperature that would result in the formation of condensation or ice.

Atmosphere The inverter must not be exposed to dust, direct sunlight, corrosive or flammable

gases, oil mist, vapor, water drops or vibration. The atmosphere must contain only a low level of salt. (0.01 mg/cm

or less per year)

86 to 106 kPa (in storage) Atmospheric

pressure

70 to 106 kPa (during transportation)

Assuming a comparatively short storage period (e.g., during transportation or the like).

Even if the humidity is within the specified requireme nts, avoid such places where the inverter will be subjected to sudden changes in temperature that will cause condensation to form.

Precautions for temporary storage (1) Do not leave the inverter directly on the floor.

(2) If the environment does not satisfy the specified requirements, wrap the inverter in an airtight

vinyl sheet or the like for storage.

(3) If the inverter is to be stored in an environment with a high level of humidity, put a drying agent

(such as silica gel) in the airtight package described in item (2).

1.4.2 Long-term storage

The long-term storage methods for the inverter vary largely according to the environment of the storage site. General storage methods are described below.

(1) The storage site must satisfy the requirements specified for temporary storage. However, for storage exceeding three months, the ambient temperature should be within the

range from -10 to +30 °C. This is to prevent the electrolytic capacitors in the inverter from deteriorating.

(2) The inverter must be stored in a package that is airtight to protect it from moisture. Include a

drying agent inside the package to maintain the relative humidity inside the package to within 70%.

(3) If the inverter has been installed in the equipment or control board at a constr uction si te w here it

may be subjected to humidity, dust or dirt, then remove the inverter and store it in a suitable environment specified in Table 1.1.

Precautions for storage over 1 year If the inverter will not be powered on for a long time, the property of the electrolytic capacitors may

deteriorate. Power the inverters on once a year and keep them on for 30 to 60 minutes. Do not connect the inverters to motors or run the motor.

2-1

Top 100 mm

Bottom 100 mm

Left

10 mm

Right

10 mm

Chapter 2 MOUNTING AND WIRING OF THE INVERTER

2.1 Operating Environment

Install the inverter in an environment that satisfies the requirements listed in Table 2.1.

Table 2.1 Environmental Requirements

Item Specifications Site location Indoors Ambient

temperature

-10 to +50°C (Note 1)

Relative humidity

5 to 95% (No condensation)

Atmosphere

The inverter must not be exposed to dust, direct sunlight, corrosive gases, flammable gas, oil mist, vapor or water drops.

(Note 2)

The atmosphere must contain only a low level of salt.

(0.01 mg/cm

or less per year)

The inverter must not be subjected to sudden changes in temperature that will cause

condensation to form. Altitude 1,000 m max. (Note 3) Atmospheric

pressure

86 to 106 kPa

3 mm (Max. amplitude) 2 to less than 9 Hz

9.8 m/s2 9 to less than 20 Hz 2 m/s2 20 to less than 55 Hz

Vibration

1 m/s

55 to less than 200 Hz

2.2 Installing the Inverter

(1) Mounting base

The temperature of the heat sink will rise up to approx. 90°C during operation of the inverter, so the inverter should be mounted on a base made of material that can withstand temperatures of this level.

Install the inverter on a base constructed from metal or other non-flammable material.

A fire may result with other material.

(2) Clearances

Ensure that the mi nimum c leara nces ind icat ed in Figure 2.1 are maintained at all times. When installing the inverter in the enclosure of you

system, take extra care with ventilation inside the enclosure as the temperature around the inverte

will tend to increase.



Table 2.2 Output Current Derating Factor in

Relation to Altitude

Altitude

Output current

derating factor 1000 m or lower 1.00 1000 to 1500 m 0.97 1500 to 2000 m 0.95 2000 to 2500 m 0.91 2500 to 3000 m 0.88

(Note 1) When inverters are mounted side-by-side without any gap between them or the NEMA1 kit option is mounted on the inverter, the ambient temperature should be within the range from -10 to +40°C.

(Note 2) Do not install the inverter in an environment where it may be exposed to cotton waste or moist dust or dirt which will clog the heat sink in the inverter. If the inverter is to be used in such an env ironment, install it in the enclosure of your system or other dustproof containers.

(Note 3) If you use the inverter in an altitude above 1000 m, you should apply an output current derating factor as listed in Table 2.2.

Figure 2.1 Mounting Direction and

Required Clearances

2-2

When mounting two or more inverters Horizontal layout is recommended when tw o or more inv erters are to b e inst all ed i n the same unit or

enclosure. As long as the ambient temperature is 40°C or lower, inverters may be mounted side-by-side without any gap between them. If it is necessary to mount the inv erters v ertica lly, install a partition plate or the like between the inverters so that any heat radiating from an inverter will not affect the one/s above.

(3) Mounting direction

Secure the inverter to the mounting base with four screws or bolts (M4) so that the V6 Series logo faces outwards. Tighten those screws or bolts perpendicular to the mounting base.

Do not mount the inverter upside down or horizontally. Doing so will reduce the heat dissipation efficiency of the inverter an d cause the ov erheat pro tection fun ctio n to opera te, so the inverter will not run.

Prevent lint, paper fibers, sawdust, dust, metallic chips, or other foreign materials from getting into the inverter or from accumulating on the heat sink.

This may result in a fire or accident.

2.3 Wiring

Follow the procedure below. (In the following description, the inverter has already been installed.)

2.3.1 Removing the terminal b lock (TB) covers (1) Removing the control circuit terminal block (TB) cover

Insert your finger in the cutout (near "PULL") in the bottom of the control circuit TB cover, then pull the cover towards you.

(2) Removing the main circuit terminal block (TB) cover

Hold both sides of the main circuit TB cover between thumb and forefinger and slide it towards you.

Figure 2.2 Removing the Terminal Block (TB) Covers

2-3

2.3.2 Terminal arrangement and screw specifications

The figures below show the arrangement of the main and control circuit terminals which differs according to inverter type. The two terminals prepared for grounding, which are indicated by the symbol

G in Figures A and B , make no distin ction be tw een the p ow er supply side (primary circuit)

and the motor side (secondary circuit).

(1) Arrangement of the main circuit terminals

Table 2.3 Main Circuit Terminals

Power supply

voltage

Applicable

motor rating

(kW)

Inverter type

Terminal

screw size

Tightening

torque

(N·m)

Refer to:

0.1 V6-01-4

0.2 V6-02-4

0.4 V6-04-4

0.75 V6-07-4

M3.5 1.2 Figure A

1.5 V6-15-3**

2.2 V6-22-3**

Three-

phase 200 V

3.7 V6-37-3**

M4 1.8 Figure B

Note: Braking resistor built-in type: V6-15-3,V6-22-3,V6-37-3

2-4

(2) Arrangement of the control circuit terminals (common to all V6 models)

Screw size: M 2 Tightening torque: 0.2 N•m

Screw size: M 2.5 Tightening torque: 0.4 N•m

30A 30B 30C

Y111Y1E FMA C1 PLC

12 13 11 CM

X1 X2 X3

CM FWD REV

Table 2.4 Control Circuit Terminals

Terminal  Screwdriver to be used Allowable wire size

Bared wire

length

Dimension of openings in the control circuit terminals for stick terminals*

30A, 30B, 30C

Phillips screwdriver (JIS standard) No.1 screw tip

AWG22 to AWG18 (0.34 to 0.75 mm

)

6 to 8 mm 2.7 mm (W) x 1.8 mm (H)

Others

Phillips screwdriver for precision machinery (JCIS standard) No.0 screw tip

AWG24 to AWG18 (0.25 to 0.75 mm

)

5 to 7 mm 1.7 mm (W) x 1.6 mm (H)

* Manufacturer of stick terminals: WAGO Company of Japan, Ltd. Refer to Table 2.5.

Table 2.5 Recommended Stick Terminals

Type (216-

)

Screw size Wire size

With insulated collar Without insulated collar

Short type Long type Short type Long type

AWG24 (0.25 mm

) 321 301 151 131

AWG22 (0.34 mm

) 322 302 152 132

M2 or M2.5

AWG20 (0.50 mm

) 221 201 121 101

AWG18 (0.75 mm

) 222 202 122 102

The length of bared wires to be inserted into stick terminals is 5.0 mm or 8.0 mm fo r the shor t or lo ng t ype, respectively.

The following crimping tool is recommended: Variocrimp 4 (Part No.: 206-204).

2.3.3 Recommended wire sizes

T able 2.6 list s the recommended wire sizes. The recommen ded wire sizes fo r the main circui ts for a n ambient temperature of 50°C are indicated for two types of wire: HIV single w ire (for 75 °C) (before a slash (/)) and IV single wire (for 60°C) (after a slash (/)),

2-5

Table 2.6 Recommended Wire Sizes

Recommended wire size (mm

)

Main circuit

Main circuit power input

[L1/R, L2/S, L3/T]

Grounding [

Power supply voltage

Applicable motor rating

(kW)

Inverter type

w/ DCR*2w/o DCR

Inverter

output

[U, V, W]

DCR

[P1, P (+)]

Braking resistor

[P (+), DB]

Control

circuit

0.1 V6-01-4

0.2 V6-02-4

0.4 V6-04-4

0.75 V6-07-4

1.5 V6-15-3

2.2 V6-22-3

2.0 / 2.0 (2.5)

Three-phase 200 V

3.7

V6-37-3

2.0 / 2.0 (2.5)

2.0 / 5.5 (2.5)

2.0 / 3.5 (2.5)

2.0 / 2.0 (2.5)

0.5

DCR: DC reactor

*1 Use crimp terminals covered with an i nsulated s heath or i nsulating tu be. Recomm ended wire sizes ar e

for HIV/IV (PVC in the EU).

*2 Wire sizes are calculated on the basis of input RMS current u nder the condition that the power su pply

capacity and impedance are 500 kVA and 5%, respectively.

*3 Insert the DC r eactor (DCR) in either of the primary power input lines. Refer to Chapter 1 0 for more

details.

Note: Braking resistor built-in type V6-15-3,V6-22-3,V6-37-3

2-6

2.3.4 Wiring precautions

Follow the rules below when performing wiring for the inverter. (1) Make sure that the source voltage is within the rated voltage range specified o n the namepla te.

(2) Be sure to connect the power wires to the main circuit power input terminals L1/R, L2/S and

L3/T (for three-phase voltage input) of the inverter. If the power wires are connected to other terminals, the inverter will be damaged when the power is turned on.

(3) Always connect the grounding terminal to prevent electric shock, fire or other disasters and to

reduce electric noise.

(4) Use crimp terminals covered with in sulated sleeves for the main circui t terminal wiring to ensure

a reliable connection.

(5) Keep the power supply wiring (primary circuit) and motor wiring (secondary circuit) of the main

circuit, and control circuit wiring as far away as possible from each other.

• Use wires in the specified size.

Otherwise, fire could occur.

• Do not use one multicore cable in order to connect several inverters with motors.

• Do not connect a surge killer to the inverter's output (secondary) circuit.

Doing so could cause fire.

• Be sure to connect the grounding wires without fail.

Otherwise, electric shock or fire could occur.

• Qualified electricians should carry out wiring.

• Be sure to perform wiring after turning the power off.

• Ground the inverter following Class C or Class D specifications or national/local electric code, depending on the input voltage of the inverter.

Otherwise, electric shock could occur.

• Be sure to perform wiring after installing the inverter body.

Otherwise, electric shock or injuries could occur.

• Ensure that the number of input phases and the rated voltage of the product match the number of phases and the voltage of the AC power supply to which the product is to be connected.

Otherwise, fire or an accident could occur.

• Do not connect the power source wires to output terminals (U, V, and W).

• Do not connect a braking resistor to between terminals P (+) and N (-), P1 and N (-), P (+) and P1, DB and N (-), or P1 and DB.

Doing so could cause fire or an accident.

2-7

2.3.5 Wiring for main circuit terminals and grounding terminals

Follow the procedure below. Figure 2.3 illustrates the wiring procedure with peripheral equipment.

c Grounding terminal G (Use either one of the Gs.) d Inverter output terminals (U, V, and W) e DC reactor connection terminals (P1 and P(+))

f Braking resistor connection terminals (P(+) and DB)

g DC link circuit terminals (P(+) and N(-))

h Main circuit power input terminals (L1/R, L2/S and L3/T) or (L1/L and L2/N)

*Perform wiring as necessary.

Figure 2.3 Wiring Procedure for Peripheral Equipment

Wiring procedure

(This figure is a virtual representation.)

2-8

The wiring procedure for the V6-07-4 is given below as an e xample. For other inv erter types, perform wiring in accordance with their individual terminal arrangement. (Refer to page 2-3.)

c Grounding terminals ( G)

Be sure to ground either of the two grounding terminals for safety and noise reduction. It i s stipulated by the Electric Facility Technical Standard that all metal frames of electrical equipment must be grounded to avoid electric shock, fire and other disasters.

Figure 2.4 Grounding Terminal

Wiring

Grounding terminals should be grounded as follows:

1) Connect the grounding terminal of inverters to a ground electrode on which class D grounding work has been completed, respectively, in compliance with the Electric Facility Technical Standard.

2) Connect a thick grounding wire with a large surface area and which meets the grounding resistance requirements listed in Table 2.7. Keep the wiring length as short as possible.

Above requirements are for Japan. Ground the inverter according to your national or local Electric code requirements.

d Inverter output terminals, U, V, and W

1) Connect the three wires of the 3-phase motor to terminals U, V, and W, aligning phases each other.

2) Connect the grounding wire of terminals U, V, and W to the grounding terminal (

G).

Figure 2.5 Inverter Output

Terminal Wiring

- The wiring length between the inverter and moto

should not exceed 50 m.

Do not use one multicore cable to connect several inverters with motors.

Table 2.7 Grounding Stipulated in the Electric Facility Technical Standard

Supply voltage Grounding work class Grounding resistance

3-phase 200 V Class D 100 Ω or less

Motor

50 m or less

Power supply

Inverter

2-9

• Do not connect a power factor correcting capacitor or surge absorber to the inverter’s output terminals (secondary circuit).

• If the wiring length is long, the stray capacitance between the wires will increase, resulting in an outflow of the leakage current. It will activ ate the overcurre nt protection, increase the leakage current, or will not assure the accuracy of the current display. In the worst case, the inverter could be damaged.

• If more than one motor is to be connected to a single inv erter, the wiring length should be the length of the wires to the motors.

e DC reactor terminals, P1 and P (+)

1) Remove the jumper bar from terminals P1 and P(+).

2) Connect a DC reactor (option) to terminals P1 and P(+).

• The wiring length should be 10 m or below.

• If both a DC reactor and a braking resistor are to be connected to the inverter, secure both wires of the DC reactor and braking resistor together to terminal P(+). (Refer to item

f on the next page.)

• Do not remove the jumper bar if a DC reactor is not going to be used.

Figure 2.6 DC Reactor Connection

2-10

f Braking resistor terminals, P(+) and DB

1) Connect terminals P and DB of a braki ng resistor to termin als P(+) and DB on the main circui t terminal block. (For the braking resistor built-in type, refer to the next page.)

2) When using an external braking resistor, arrange the inverter and braking resi stor to keep the wiring length to 5 m or less and twist the two wires or route them together in parallel.

Do not connect a braking resistor to any inverter with a rated capacity of 0.2 kW or below. (Even if connected, the braking resistor will not work.)

Never insert a braking resistor between terminals P(+) and N(-), P1 and N(-), P(+) and P1, DB and N(-), or P1 and DB.

Doing so could cause fire.

Figure 2.7 Braking Resistor

Connection without DC Reactor

When a DC reactor is not to be connected together with the braking resistor

1) Remove the screws from terminals P1 and P(+), togethe

with the jumper bar.

2) Put the wire from terminal P of the braking resistor and the

umper bar on terminal P(+) in this order, then secure them

with the screw removed in 1) above.

3) Tighten the screw on terminal P1.

4) Connect the wire from terminal DB of the braking resistor to the DB of the inverter.

Figure 2.8 Braking Resistor

Connection with DC Reactor

When connecting a DC reactor together with the braking resistor

1) Remove the screw from terminal P(+).

2) Overlap the DC reactor wire and braking resistor wire (P) as shown at left and then secure them to terminal P(+) o

the inverter with the screw.

3) Connect the wire from terminal DB of the braking resistor to terminal DB of the inverter.

4) Do not use the jumper bar.

2-11

When using a braking resistor built-in type

A built-in braking resistor is connected to terminals P(+) and DB at the factory as shown below.

If you want to connect a DC reactor together with the built-in braking resistor, follow the instructions given on the previous page.

Figure 2.9 Built-in Braking Resistor

Connection (This example shows the braking resistor built-in type V6-15-3)

- If both wires of the built-in braking re si sto r have been disconnected, you may connect them to terminals P(+) and DB in either combination.

- The braking resistor built-in type is available only 1.5 kW or more.

Never insert a braking resistor between terminals P(+) and N(-), P1 and N(-), P(+) and P1, DB and N(-), or P1 and DB.

Doing so could cause fire.

g DC link circuit terminals, P (+) and N (-)

These are provided for the DC link circuit system. Connect these terminals with terminals P(+) and N (-) of other inverters.

Consult your Miki Pulley representative if these terminals are to be used.

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Miki Pulley V6 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual