YASKAWA VS mini CIMRJ7 A23P7 Series, VS mini CIMRJ7 A20P1 Series, VS mini CIMRJ7 A21P5 Series, VS mini CIMRJ7 A22P2 Series, VS mini CIMRJ7 AB0P1 Series Instruction Manual

YASKAWA

VS mini J7 Series

INSTRUCTION MANUAL

COMPACT GENERAL-PURPOSE INVERTER

Upon receipt of the product and prior to initial operation, read these instructions
thoroughly and retain them for future reference.

YA S K A WA

MANUAL NO. TOE-S606-12.1G

PREFACE

Yaskawa’s VS mini J7 (hereinafter called VS mini) is a small and simple
Inverter; as easy to use as a contactor. This instruction manual describes
installation, maintenance, inspection, troubleshooting, and specifications of
the VS mini. Read this instruction manual thoroughly before operation.

YASKAWA ELECTRIC CORPORATION

General Precautions

• Some drawings in this manual are shown with protective covers or shields
removed in order to show detail with more clarity. Make sure all covers and
shields are replaced before operating the product.

• This manual may be modified when necessary because of improvements to
the product, modifications, or changes in specifications.
Such modifications are indicated by revising the manual number.

• To order a copy of this manual, or if your copy has been damaged or lost,
contact your Yaskawa representative.

• Yaskawa is not responsible for any modification of the product made by the
user, since that will void the guarantee.

1

NOTATION FOR SAFETY PRECAUTIONS

Read this instruction manual thoroughly before installation, operation, mainte­nance, or inspection of the VS mini. In this manual, safety precautions are classi­fied as either warnings or cautions and are indicated as shown below.

WARNING

Indicates a potentially hazardous situation which, if not avoided, may result in
death or serious injury.

CAUTION

Indicates a potentially hazardous situation which, if not avoided, may result in
minor or moderate injury or damage to equipment.
It may also be used to alert against unsafe practices.

Even items classified as cautions may result in serious accidents in some situa­tions. Always follow these important precautions.

: Indicates information to insure proper operation.

NOTE

2

PRECAUTIONS FOR UL/cUL MARKING

• Do not connect or disconnect wiring, or perform signal checks while the
power supply is turned ON.

• The Inverter internal capacitor is still charged even after the power supply
is turned OFF. To prevent electric shock, disconnect all power before ser­vicing the Inverter, and then wait at least one minute after the power sup­ply is disconnected. Confirm that all indicators are OFF before
proceeding.

• Do not perform a withstand voltage test on any part of the Inverter. The
Inverter is an electronic device that uses semiconductors, and is thus vul­nerable to high voltage.

• Do not remove the Digital Operator or the blank cover unless the power
supply is turned OFF. Never touch the printed circuit board (PCB) while
the power supply is turned ON.

• This Inverter is not suitable for use on a circuit capable of delivering more
than 18,000 RMS symmetrical amperes, 250 V maximum (200 V Class
Inverters) or 18,000 RMS symmetrical amperes, 480 V maximum (400 V
Class Inverters).

CAUTION

• Use 75°C copper wire or equivalent.

Low voltage wires must be wired with Class I Wiring.

PRECAUTIONS FOR CE MARKINGS

• Only basic insulation to meet the requirements of protection class 1 and
overvoltage category II is provided with control circuit terminals.
Additional insulation may be necessary in the end product to conform to
CE requirements.

• For 400 V class Inverters, make sure to ground the supply neutral to con­form to CE requirements.

• For conformance to EMC directives, refer to the relevant manuals for the
requirements.
Document No. EZZ008389 for Japanese version,
Document No. EZZ008390 for English version

3

RECEIVING THE PRODUCT

CAUTION

• Do not install or operate any Inverter that is
damaged or has missing parts.

Failure to observe this caution may result in injury or
equipment damage.

MOUNTING

CAUTION

• Lift the Inverter by the heatsinks. When moving
the Inverter, never lift it by the plastic case or the
terminal cover.

Otherwise, the main unit may fall and be damaged.

• Mount the Inverter on nonflammable material
(i.e., metal).

Failure to observe this caution may result in a fire.

• When mounting Inverters in an enclosure, install
a fan or other cooling device to keep the intake
air temperature below 50°C.

Overheating may cause a fire or damage the Inverter.

• The VS mini generates heat. For effective cool­ing, mount it vertically.
Refer to the figure in Mounting Dimensions on
page 22.

(Ref. page)

19

(Ref. page)

21

21

21

22

4

WIRING

WARNING

• Only begin wiring after verifying that the power
supply is turned OFF.

Failure to observe this warning may result in an elec­tric shock or a fire.

• Wiring should be performed only by qualified
personnel.

Failure to observe this warning may result in an elec­tric shock or a fire.

• When wiring the emergency stop circuit, check
the wiring thoroughly before operation.

Failure to observe this warning may result in injury.

• For 400 V class, make sure to ground the sup­ply neutral.

Failure to observe this warning can result in an elec­tric shock or a fire.

• Always ground the ground terminal accord-

ing to the local grounding code.

Failure to observe this warning may result in an elec­tric shock or a fire.

• When the 3-wire sequence is set, do not make
the wiring for the control circuit unless the multi­function input terminal parameter is set.

Failure to observe this warning may result in injury.

(Ref. page)

24

24

24

29

29

70

5

CAUTION

• Verify that the Inverter rated voltage coincides
with the AC power supply voltage.

Failure to observe this caution may result in personal
injury or a fire.

• Do not perform a withstand voltage test on the
Inverter.

Performing withstand voltage tests may damage
semiconductor elements.

• Always tighten terminal screws of the main cir­cuit and the control circuits.

Failure to observe this caution may result in a mal­function, damage, or a fire.

• Never connect the AC main circuit power supply
to output terminals U/T1, V/T2, or W/T3.

The Inverter will be damaged and the guarantee will
be voided.

• Do not connect or disconnect wires or connec­tors while power is applied to the circuits.

Failure to observe this caution may result in injury.

• Do not perform signal checks during operation.

The machine or the Inverter may be damaged.

(Ref. page)

24

24

6

OPERATION

WARNING

• Only turn ON the input power supply after con­firming that the front cover, top cover, and bot­tom cover are in place. Do not remove the
covers while current is flowing.

Failure to observe this warning may result in an elec­tric shock.

• Never operate the Digital Operator or DIP
switches with wet hands.

Failure to observe this warning may result in an elec­tric shock.

• Never touch the terminals while current is flow­ing, even if the Inverter is stopping.

Failure to observe this warning may result in an elec­tric shock.

• When the fault retry function is selected, stand
clear of the Inverter or the load. The Inverter
may restart suddenly after stopping.

(Construct the system to ensure safety, even if the
Inverter should restart.) Failure to observe this warn­ing may result in injury.

• When continuous operation after power recov­ery is selected, stand clear of the Inverter or the
load. The Inverter may restart suddenly after
stopping.

(Construct the system to ensure safety, even if the
Inverter should restart.) Failure to observe this warn­ing may result in injury.

• The Digital Operator stop button can be dis­abled by a setting in the Inverter. Install a sepa­rate emergency stop switch.

Failure to observe this warning may result in injury.

(Ref. page)

60

56

7

WARNING

• If an alarm is reset with the operation signal ON,
the Inverter will restart automatically. Reset an
alarm only after verifying that the operation sig­nal is OFF.

Failure to observe this warning may result in injury.

• When the 3-wire sequence is set, do not make
the wiring for the control circuit unless the multi­function input terminal parameter is set.

Failure to observe this warning may result in injury.

CAUTION

• Never touch the heatsinks, which can be
extremely hot.

Failure to observe this caution may result in harmful
burns to the body.

• It is easy to change operation speed from low to
high. Verify the safe working range of the motor
and machine before operation.

Failure to observe this caution may result in injury
and machine damage.

• Install a holding brake separately if necessary.

Failure to observe this caution may result in injury.

• If using an Inverter with an elevator, take safety
measures on the elevator to prevent the eleva­tor from dropping.

Failure to observe this caution can result in personal
injury.

• Do not perform signal checks during operation.

The machine or the Inverter may be damaged.

(Ref. page)

32

70

(Ref. page)

8

CAUTION

• All the constants set in the Inverter have been
preset at the factory. Do not change the settings
unnecessarily.

The Inverter may be damaged.

MAINTENANCE AND INSPECTION

WARNING

• Never touch high-voltage terminals on the
Inverter.

Failure to observe this warning may result in an elec­tric shock.

• Disconnect all power before performing mainte­nance or inspection, and then wait at least one
minute after the power supply is disconnected.
Confirm that all indicators are OFF before pro­ceeding.

If the indicators are not OFF, the capacitors are still
charged and can be dangerous.

• Do not perform withstand voltage test on any
part of the VS mini.

The Inverter is an electronic device that uses semi­conductors, and is thus vulnerable to high voltage.

• Only authorized personnel should be permitted
to perform maintenance, inspection, or parts
replacement.

(Remove all metal objects (watches, bracelets, etc.)
before starting work.)
(Use tools which are insulated against electric
shock.)
Failure to observe these warnings may result in an
electric shock.

33

(Ref. page)

93

9

CAUTION

• The control PCB employs CMOS ICs.
Do not touch the CMOS elements.

They are easily damaged by static electricity.

• Do not connect or disconnect wires, connectors,
or the cooling fan while power is applied to the
circuit.

Failure to observe this caution may result in injury.

OTHERS

WARNING

• Never modify the product.

Failure to observe this warning may result in an electric shock or
injury and will void the guarantee.

CAUTION

• Do not subject the Inverter to halogen gases, such as fluorine,
chlorine, bromine, and iodine, at any time even during trans­portation or installation.

Otherwise, the Inverter can be damaged or interior parts burnt.

(Ref. page)

93

10

WARNING LABEL

A warning label is provided on the front cover of the Inverter, as shown below.
Follow the warnings when handling the Inverter.

PlasticCase

QualificationMark

Nameplate

Status
Indicators

WarningDisplay

11

English and French Warning Labels

Warning Labels at End of

Instruction Manual

A Japanese warning label is attached
when the VS mini is shipped.
If a English or French label is required,
attach the warning label at the end of
the Instruction Manual over the Japa­nese warning label.

Example: 3-phase (200 V Class, 1.5 kW) Inverter

12

WARRANTY INFORMATION

 Free Warranty Period and Scope

 Warranty Period

This product is warranted for twelve months after being delivered to
Yaskawa’s customer or if applicable eighteen months from the date of
shipment from Yaskawa’s factory, whichever comes first.

 Scope of Warranty

Inspections

Periodic inspections must be conducted by the customer. However,
upon request, Yaskawa or one of Yaskawa’s Service Centers can inspect
the product for a fee. In this case, if after conferring with the customer, a
Yaskawa product is found to be defective due to Yaskawa workmanship
or materials and the defect occurs during the warranty period, then this
fee will be waived and the problem remedied free of charge.

Repairs

If a Yaskawa product is found to be defective due to Yaskawa workman­ship or materials and the defect occurs during the warranty period,
Yaskawa will provide a replacement, repair the defective product, and
provide shipping to and from the site free of charge.

However, if the Yaskawa Authorized Service Center determines that the
problem with a Yaskawa product is not due to defects in Yaskawa’s
workmanship or materials, then the customer will be responsible for the
cost of any necessary repairs. Some problems that are outside the scope
of this warranty are:

• Problems due to improper maintenance or handling, carelessness, or
other reasons where the customer is determined to be responsible.

• Problems due to additions or modifications made to a Yaskawa prod­uct without Yaskawa’s understanding.

• Problems due to the use of a Yaskawa product under conditions that
do not meet the recommended specifications.

• Problems caused by natural disaster or fire.

• Or other problems not due to defects in Yaskawa workmanship or
materials.

Warranty service is only applicable within Japan.

However, after-sales service is available for customers outside of Japan
for a reasonable fee. Contact your local Yaskawa representative for
more information.

13

 Exceptions

Any inconvenience to the customer or damage to non-Yaskawa products
due to Yaskawa's defective products whether within or outside the war­ranty period are NOT covered by this warranty.

RESTRICTIONS

• The VS mini was not designed or manufactured for use in devices or sys­tems that may directly affect or threaten human lives or health.

• Customers who intend to use the product described in this manual for
devices or systems relating to transportation, health care, space aviation,
atomic or electric power, or underwater use must contact their Yaskawa
representatives or the nearest Yaskawa sales office beforehand.

• This product has been manufactured under strict quality-control guide­lines. However, if this product is to be installed in any location where fail­ure of this product could involve or result in a life-and-death situation or
loss of human life or in a facility where failure may cause a serious acci­dent or physical injury, safety devices must be installed to minimize the
likelihood of any accident.

14

CONTENTS

NOTATION FOR SAFETY PRECAUTIONS - - - - - - 2

1. Receiving the Product - - - - - - - - - - - - - - - - - - - 19

■

Checking the Nameplate - - - - - - - - - - - - - - - - - - - - - - - - - - - 19

2. Identifying the Parts - - - - - - - - - - - - - - - - - - - - 20

3. Mounting - - - - - - - - - - - - - - - - - - - - - - - - - - - - 21

■

Choosing a Location to Mount the Inverter - - - - - - - - - - - - - - 21

■

Mounting Dimensions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 22

■

Mounting/Removing Components- - - - - - - - - - - - - - - - - - - - - 23

4. Wiring - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 24

■

Wiring Instructions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 24

■

Wire and Terminal Screw Sizes - - - - - - - - - - - - - - - - - - - - - - 25

■

Wiring the Main Circuits- - - - - - - - - - - - - - - - - - - - - - - - - - - - 29

■

Wiring the Control Circuits - - - - - - - - - - - - - - - - - - - - - - - - - - 31

■

Wiring Inspection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 32

5. Operating the Inverter - - - - - - - - - - - - - - - - - - - 33

■

Test Run - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 33

 Operation Check Points- - - - - - - - - - - - - - - - - - - - - - - - - - - - 34

■

Operating the Digital Operator - - - - - - - - - - - - - - - - - - - - - - - 35

 Description of Status Indicators - - - - - - - - - - - - - - - - - - - - - - 36

■

Function Indicator Description - - - - - - - - - - - - - - - - - - - - - - - 38

 MNTR Multi-function Monitoring- - - - - - - - - - - - - - - - - - - - - - 39
 Input/Output Terminal Status - - - - - - - - - - - - - - - - - - - - - - - - 40

■

Simple Data Setting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 41

6. Programming Features - - - - - - - - - - - - - - - - - - 43

 Hardware- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 43
 Software (Constant) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 43

15

■

Constant Setup and Initialization - - - - - - - - - - - - - - - - - - - - - -44

 Constant Selection/Initialization (n01) - - - - - - - - - - - - - - - - - -44

■

Selecting V/f Pattern - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 45

 Adjusting Torque According to Application - - - - - - - - - - - - - - - 45

■

Switching LOCAL/REMOTE Mode - - - - - - - - - - - - - - - - - - - -48

 How to Select LOCAL/REMOTE Mode - - - - - - - - - - - - - - - - -48

■

Selecting RUN/STOP Commands - - - - - - - - - - - - - - - - - - - - - 49

 LOCAL Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -49
 REMOTE Mode- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -49
 Operating (RUN/STOP Commands) Using Communications

(When Option Card is Installed) - - - - - - - - - - - - - - - - - - - - - - 50

■

Selecting Frequency Reference - - - - - - - - - - - - - - - - - - - - - -50

 Setting by Operator - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -50

■

Setting Operation Conditions - - - - - - - - - - - - - - - - - - - - - - - -51

 Reverse Run Prohibit (n05) - - - - - - - - - - - - - - - - - - - - - - - - - 51
 Multi-step Speed Selection - - - - - - - - - - - - - - - - - - - - - - - - - - 51
 Operating at Low Speed- - - - - - - - - - - - - - - - - - - - - - - - - - - -52
 Adjusting Speed Setting Signal - - - - - - - - - - - - - - - - - - - - - - -53
 Adjusitng Frequency Upper and Lower Limits- - - - - - - - - - - - - 54
 Using Two Acceleration/Deceleration Times - - - - - - - - - - - - - - 55
 Momentary Power Loss Ridethrough Method (n47)- - - - - - - - - 56
 S-curve Selection (n20) - - - - - - - - - - - - - - - - - - - - - - - - - - - - 56
 Torque Detection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 57
 Frequency Detection Level (n58)- - - - - - - - - - - - - - - - - - - - - - 59
 Jump Frequencies (n49 to n51)- - - - - - - - - - - - - - - - - - - - - - - 60
 Continuing Operation Using Automatic Retry Attempts (n48) - - 60
 Operating a Coasting Motor without Tripping - - - - - - - - - - - - - 61
 Holding Acceleration/Deceleration Temporarily- - - - - - - - - - - - 62
 Using Frequency Meter or Ammeter (n44) - - - - - - - - - - - - - - - 63
 Calibrating Frequency Meter or Ammeter (n45) - - - - - - - - - - -63
 Reducing Motor Noise or Leakage Current Using Carrier

Frequency Selection (n46) - - - - - - - - - - - - - - - - - - - - - - - - - -64

 Operator Stop Key Selection (n06) - - - - - - - - - - - - - - - - - - - -66

16

■

Selecting the Stopping Method- - - - - - - - - - - - - - - - - - - - - - - 67

 Stopping Method Selection (n04) - - - - - - - - - - - - - - - - - - - - - 67
 Applying DC Injection Braking - - - - - - - - - - - - - - - - - - - - - - - 68

■

Building Interface Circuits with External Devices - - - - - - - - - - 69

 Using Input Signals- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 69
 Using Output Signals (n40) - - - - - - - - - - - - - - - - - - - - - - - - - 73

■

Setting Frequency by Current Reference Input - - - - - - - - - - - 75

■

Preventing the Motor from Stalling (Current Limit) - - - - - - - - - 77

■

Decreasing Motor Speed Fluctuation - - - - - - - - - - - - - - - - - - 80

 Slip Compensation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 80

■

Motor Protection- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 81

 Motor Overload Detection - - - - - - - - - - - - - - - - - - - - - - - - - - 81

■

Selecting Cooling Fan Operation - - - - - - - - - - - - - - - - - - - - - 83

■

Using MEMOBUS (MODBUS) Communications - - - - - - - - - - 83

■

Using Constant Copy Function- - - - - - - - - - - - - - - - - - - - - - - 84

 Constant Copy Function - - - - - - - - - - - - - - - - - - - - - - - - - - - 84
 READ Function- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 86
 COPY Function - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 87
 VERIFY Function - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 89
 Inverter Capacity Display- - - - - - - - - - - - - - - - - - - - - - - - - - - 90
 Software No. Display- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 91
 Display List - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 91

7. Maintenance and Inspection - - - - - - - - - - - - - - 93

■

Periodic Inspection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 93

■

Part Replacement- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 94

 Replacement of Cooling Fan - - - - - - - - - - - - - - - - - - - - - - - - 95

8. Fault Diagnosis - - - - - - - - - - - - - - - - - - - - - - - 97

■

Protective and Diagnostic Functions- - - - - - - - - - - - - - - - - - - 97

■

Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 104

17

9. Specifications - - - - - - - - - - - - - - - - - - - - - - - 106

■

Standard Specifications (200 V Class) - - - - - - - - - - - - - - - - - 106

■

Standard Specifications (400 V Class) - - - - - - - - - - - - - - - - - 109

■

Standard Wiring- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 113

■

Sequence Input Connection with NPN/PNP Transistor - - - - - 115

■

Dimensions/Heat Loss (Unit: mm)- - - - - - - - - - - - - - - - - - - - 117

■

Recommended Peripheral Devices - - - - - - - - - - - - - - - - - - - 119

■

Constants List - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 122

10 Conformance to CE Markings - - - - - - - - - - - - 129

■

CE Markings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 129

■

Requirements for Conformance to CE Markings - - - - - - - - - - 129

 Low Voltage Directive- - - - - - - - - - - - - - - - - - - - - - - - - - - - - 129
 EMC Directive - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 130

Revision History

18

1. Receiving the Product

1. Receiving the Product

After unpacking the VS mini, check the following.

• Verify that the model number matches your purchase order or packing
slip.

• Check the Inverter for physical damage that may have occurred during
shipping.

If any part of VS mini is missing or damaged, call for service immediately.

 Checking the Nameplate

Example for 3-phase, 200-VAC, 0.1-kW Inverter

Inverter Model

Input Spec.

Output Spec.

Lot No.

Serial No.

MODEL : CIMR-J7AA20P1

INPUT : AC3PH 200-230V 50/60Hz 1.1A

OUTPUT : AC3PH 0-230V 0-400Hz 0.8A 0.3 kVA

LOT NO :
SER NO :

FILE NO. : E131457 INSTALLATION CATEGORY

IP20

YASKAWA ELECTRIC CORPORATION

SPEC :

MASS : 0.5 kg
PRG :

JAPAN

20P10

M

S

Mass
Software Number

Model

CIMR J7AA20P1

Inverter

VS mini J7 Series

No.

Type
A With Digital Operator (with potentiometer)
B

Without Digital Operator

With Digital Operator (without potentiometer)

C

Note: Contact your Yaskawa representatives
for models without heatsinks.

Specifications

No.
A

Japan domestic standards

Specifications

20P10

B

Single-phase 200 VAC

2

Three-phase 200 VAC

4

Three-phase 400 VAC

No.

0P1

0P2

0P4

0P7

1P5

2P2

3P0

3P7

Applicable maximum motor output

0.1 kW

0.2 kW

0.4 kW

0.75 kW

1.5 kW

2.2 kW

3.0 kW

3.7 kW

No.

Applicable maximum motor output

0P1

0P2

0P4

0P7

1P5

2P2

3P0

3P7

No.

Voltage Class

B

Single-phase 200 VAC

2

Three-phase 200 VAC

4

Three-phase 400 VAC

No.

0

0.1 kW

0.2 kW

0.4 kW

0.75 kW

1.5 kW

2.2 kW

3.0 kW

3.7 kW

Protective structure

Open chassis(IP20)

19

2. Identifying the Parts

Front Cover

Wiring Holes for
Control Circuit

Bottom Cover

Ground
Terminal

Fan Cover

Top Cover

Ground Terminal

Input
Polarity
Switch

CIMR-J7∗∗21P5, 22P2, 23P7

Cooling Fan

Ground Terminal

B0P7, B1P5
40P2, 40P4, 40P7, 41P5
42P2, 43P0, 43P7

Digital Operator

Option
Cover

Heatsink
Wiring Holes for
Main Circuit

Digital Operator (without potentiometer)

Used for setting or changing constants.

Opening the covers

Short Circuit Bar

Status Indicators

Frequency
Setting
Potentiometer

Voltage/Current
Change Switch

Control Circuit
Terminal Block

Main Circuit Terminal Block

Digital Operator (with potentiometer)

Used for setting or changing constants.
Frequency can be set using potentiometer.

Without Digital Operator

In models without digital operator, only status
can be displayed.

Ground Terminal

Input
Polarity
Switch

Main Circuit Terminal Block

CIMR-J7∗∗20P1, 20P2, 20P4, 20P7

B0P1, B0P2, B0P4

Short Circuit Bar

Status
Indicators

Frequency
Setting
Potentiometer

Voltage/Current
Change Switch

Control Circuit
Terminal Block

Ground
Terminal

20

3. Mounting

 Choosing a Location to Mount the Inverter

Be sure the Inverter is protected from the following conditions.

• Extreme cold and heat. Use only within the specified ambient tem­perature range:

−10 to 50°C

• Rain and moisture

• Oil sprays and splashes

• Salt spray

• Direct sunlight (Avoid using outdoors.)

• Corrosive gases (e.g., sulfurized gas) or liquids

• Dust or metallic particles in the air

• Physical shock or vibration

• Magnetic noise (Examples: Welding machines, power devices, etc.)

• High humidity

• Radioactive substances

• Combustibles, such as thinner or solvents

3. Mounting

21

 Mounting Dimensions

To mount the VS mini, the dimensions shown below are required.

30 mm
or more

30 mm
or more

100 mm

or more

100 mm

or more

Air

Air

22

 Mounting/Removing Components

Removing and Mounting the Digital Operator and Covers

• Removing the Front Cover

Use a screwdriver to loosen the
screw on the front cover and
then remove it in direction 1.
Then press the right and left
sides in direction 2 and lift the
front cover in direction 3.

• Mounting the Front Cover

Insert the tab of the upper part of
the front cover into the groove
of the Inverter, and press the
lower part of the front cover
onto the plastic case until the
cover snaps shut. Then, tighten
the screws.

• Removing the Option Cover

After removing the front cover,
remove the option cover in
direction 2 with section A as a
supporting point.

• Mounting the Option Cover

Mount the terminal cover by
reversing the order of the above
procedure for removal.

• Removing the Upper/Bottom
Covers

After removing the front cover,
lift the covers in direction 1.

• Mounting the Upper/Bottom
Covers

Mount the front cover by revers­ing the order of the above proce­dure for removal.

3. Mounting

23

4. Wiring

 Wiring Instructions

1. Always connect the power supply to the power input terminals R/L1,
S/L2, and T/L3 (R/L1, S/L2 for single-phase power) via a molded­case circuit breaker (MCCB) or a fuse. Never connect the power
supply to terminals U/T1, V/T2, W/T3, −, +1, or +2.
Refer to page 119 for recommended peripheral devices. For single­phase Inverters, always use terminals R/L1 and S/L2. Never connect
terminal T/L3.

Inverter Power Supply Connection Terminals

200-V 3-phase Input
Power Supply Speci-

fication Inverters

CIMR-J72

Connect to R/L1,
S/L2, and T/L3.

2. Connect the motor wiring to terminals U/T1, V/T2 and W/T3 on the
main circuit output side (bottom of the Inverter)

3. If the wiring distance between Inverter and motor is long, reduce the
Inverter carrier frequency. For details, refer to Reducing Motor
Noise or Leakage Current Using Carrier Frequency Selection (n46)
on page 64.

4. Control wiring must be less than 50 m in length and must be sepa­rated from the power wiring. Use shielded twisted-pair cable when
inputting the frequency signal externally.

5. Tighten the screws on the main circuit and control circuit terminals.

6. Do not connect or disconnect wiring, or perform signal check while
the power supply is turned ON.

7. For 400 V Class Inverters, always ground the supply neutral to con­form to CE requirements.

8. Only basic insulation to meet the requirements of protection class 1
and overvoltage category II is provided with control circuit termi­nals.
Additional insulation may be necessary in the end product to con­form to CE requirements.

200-V Single Input

Power Supply Speci-

fication Inverters

CIMR-J7B

Connect to R/L1 and
S/L2.

400-V 3-phase Input
Power Supply Speci-

CIMR-J74

Connect to R/L1,
S/L2, and T/L3.

fication Inverters

24

9. Closed-loop connectors should be used when wiring to the main cir­cuit terminals.

10.Voltage drop should be considered when determining the wire size.

Voltage drop can be calculated using the following equation:

Phase-to-phase voltage drop (V)
= × wire resistance (Ω/km) × wiring distance (m) × current

3

-3

(A) × 10

Select a wire size so that voltage drop will be less than 2% of the
normal rated voltage.

 Wire and Terminal Screw Sizes

1. Control Circuits

Model Terminal

Common

MA, MB, MC M3 0.5 to 0.6 Twisted wires:

to all

models

SC, FS, FR,
FC, AM, AC

Symbols

S1 to S5,

Screws Tightening

Tor qu e

Nxm

M2 0.22 to 0.25 Twisted wires:

Applicable Size Recom-

mm

0.5 to 1.25,
Single:

0.5 to 1.25

0.5 to 0.75,
Single:

0.5 to 1.25

Wires

mended Size

2

20 to 16,

20 to 16

20 to 18,

20 to 16

AWG

mm

0.75 18 Shielded

0.75 18

2

4. Wiring

AWG

or equiv-

Type

alent

25

2. Main Circuits

Model Terminal

CIMR-

J7∗A
20P1

Symbols

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

-, +1, +2

200 V Class 3-phase Input Inverters

Screws Tightening

Tor q ue

Nxm

Applicable Size Recommended

2

mm

M3.5 0.8 to 1.0 0.75 to 2 18 to 14 2 14 600 V vinyl-

AWG

Wires

mm

Size

2

AWG

Type

sheathed or

equivalent

U/T1, V/T2, W/T3 1.24

CIMR-

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

J7∗A

-, +1, +2

20P2

U/T1, V/T2, W/T3 1.24

CIMR-

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

J7∗A

-, +1, +2

20P4

U/T1, V/T2, W/T3 1.24

CIMR-

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

J7∗A

-, +1, +2

20P7

U/T1, V/T2, W/T3 1.24

CIMR-

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

J7∗A

-, +1, +2, U/T1,

21P5

V/T2, W/T3

CIMR-

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

J7∗A

-, +1, +2, U/T1,

22P2

V/T2, W/T3

CIMR-

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

J7∗A

-, +1, +2, U/T1,

23P7

V/T2, W/T3

(10.97)

M3.5 0.8 to 1.0 0.75 to 2 18 to 14 2 14

(10.97)

M3.5 0.8 to 1.0 0.75 to 2 18 to 14 2 14

(10.97)

M3.5 0.8 to 1.0 0.75 to 2 18 to 14 2 14

(10.97)

M3.5 0.8 to 1.0 2 to 5.5 1 4 to 10 2 14

M3.5 0.8 to 1.0 2 to 5.5 1 4 to 10 3.5 12

M4 1.2 to 1.5 2 to 5.5 14 to 10 5.5 10

Note: The wire size is given for copper wire at 75°C.

26

Model Terminal

Symbols

CIMR-

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

J7∗A

-, +1, +2

B0P1

200 V Class Single-phase Input Inverters

Screws Tightening

Tor q ue

Nxm

M3.5 0.8 to 1.0 0.75 to 2 18 to 14 2 14 600 V vinyl-

Applicable Size Recommended

2

mm

AWG

Wires

mm

Size

2

AWG

4. Wiring

Type

sheathed or

equivalent

U/T1, V/T2, W/T3 1.24

CIMR-

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

J7∗A

-, +1, +2

B0P2

U/T1, V/T2, W/T3 1.24

CIMR-

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

J7∗A

-, +1, +2

B0P4

U/T1, V/T2, W/T3 1.24

CIMR-

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

J7∗A

-, +1, +2, U/T1,

B0P7

V/T2, W/T3

CIMR-

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

J7∗A

-, +1, +2, U/T1,

B1P5

V/T2, W/T3

(10.97)

M3.5 0.8 to 1.0 0.75 to 2 18 to 14 2 14

(10.97)

M3.5 0.8 to 1.0 0.75 to 2 18 to 14 2 14

(10.97)

M3.5 0.8 to 1.0 2 to 5.5 14 to 10 3.5 12

M3.5 0.8 to 1.0 2 to 5.5 14 to 10 5.5 10

Note: 1. The wire size is given for copper wire at 75°C.

2. Do not use terminal T/L3 on Inverters with single-phase input.

214

214

27

Model Terminal Sym-

CIMR-

J7∗A
40P2

CIMR-

J7∗A
40P4

CIMR-

J7∗A
40P7

CIMR-

J7∗A
41P5

CIMR-

J7∗A
42P2

CIMR-

J7∗A
43P0

CIMR-

J7∗A
43P7

bols

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

-, +1, +2, U/T1,
V/T2, W/T3

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

-, +1, +2, U/T1,
V/T2, W/T3

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

-, +1, +2, U/T1,
V/T2, W/T3

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

-, +1, +2, U/T1,
V/T2, W/T3

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

-, +1, +2, U/T1,
V/T2, W/T3

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

-, +1, +2, U/T1,
V/T2, W/T3

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

-, +1, +2, U/T1,
V/T2, W/T3

400 V Class 3-phase Input Inverters

Screws Tightening

Tor qu e

Nxm

M3.5 0.8 to 1.0 2 to 5.5 14 to 10 2 14 600 V vinyl-

M3.5 0.8 to 1.0 2 to 5.5 14 to 10 2 14

M3.5 0.8 to 1.0 2 to 5.5 14 to 10 2 14

M3.5 0.8 to 1.0 2 to 5.5 14 to 10 2 14

M4 1.2 to 1.5 2 to 5.5 14 to 10 2 14

M4 1.2 to 1.5 2 to 5.5 14 to 10 2 14

M4 1.2 to 1.5 2 to 5.5 14 to 10 2 14

Applicable Size Recommended

2

mm

AWG

Wires

Size

2

mm

3.5 12

3.5 12

AWG

Type

sheathed or

equivalent

Note: The wire size is given for copper wire at 75°C.

28

4. Wiring

 Wiring the Main Circuits

RST

[Example of 3-phase,

MCCB or
Leakage
Breaker

• Main Circuit Input Power Supply

Always connect the power supply line to input terminals R/L1, S/L2, and T/L3 (R/L1, S/
L2 for single-phase Inverters). Never connect them to terminals U/T1, V/T2, W/T3, B1,
B2, −, +1, or +2. The Inverter may be damaged if the wrong terminals are connected.

For single-phase Inverters, always use terminals R/L1 and S/L2. Never connect

NOTE

terminal T/L3.

• Grounding (Use ground terminal .)

Always ground the ground terminal according to local grounding codes.
Never ground the VS mini to the same ground as welding machines, motors, or other elec-

trical equipment.
When several VS mini Inverters are used side by side, ground each as shown in examples.
Do not loop the ground wires.

200 V Class, 1.5 kW Inverters]

Ground

Good

Good

Poor

29

• Inverter Output

Connect the motor terminals to U/T1, V/T2, and W/T3.

• Wiring the Main Circuit Terminals

Pass the cables through wiring hole to connect them. Always mount the cover in its origi­nal position.

Connect with a Phillips screwdriver.

30

4. Wiring

 Wiring the Control Circuits

Only basic insulation is provided for the control circuit terminals.

Additional insulation may be necessary in the end product.

• Control Circuit Terminals

Pass the cable through wiring hole to connect it. Always mount the
cover in its original position.

SW7 can be changed according to sequence input signal (S1 to S5)
polarity.
0 V common: NPN side (Initial setting)
+24 V common: PNP side
Refer to page 115 for SW7.

Refer to page 75 for SW8.

Wiring the Control Circuit Terminals Screwdriver Blade Width

0.4 mm max

Insert the wire into the lower part of the terminal block and connect
it tightly with a screwdriver.

5.5 mm

The wire sheath strip length must be 5.5 mm.

2.5 mm max

31

Open the front cover and verify that the strip length is 5.5 mm.

Scale

 Wiring Inspection

After completing wiring, check the following.

• Wiring is proper.

• Wire clippings or screws are not left in the Inverter.

• Screws are securely tightened.

• Bare wires in the terminals do not contact other terminals.

If the FWD (or REV) RUN command is given when the RUN

NOTE

command from the control circuit terminal is selected (n02 =

1), the motor will start automatically after the main circuit
input power supply is turned ON.

32

5. Operating the Inverter

5. Operating the Inverter

 Test Run

The Inverter operates when a frequency (speed) is set.

There are three operating modes for the VS mini:

1. RUN command from the Digital Operator (potentiometer/digital set­ting)

2. RUN command from the control circuit terminals

3. RUN command from MEMOBUS communications

Prior to shipping, the Inverter is set up to receive the RUN command
and frequency reference from the Operator. Below are instructions for
running the VS mini using the Digital Operator (with potentiometer).
For instructions on operation, refer to page 41.

Operation reference or frequency reference constants can be selected
separately as shown below.

Name Constant

RUN

Command

Selection

Frequency

Reference

Selection

n02 = 0 --- Enables run, stop, and reset from Digital Operator.

= 1 --- Enables run and stop from control circuit terminals.
= 2 --- Enables MEMOBUS communications.

n03 = 0 --- Enables the Digital Operator’s potentiometer setting.

= 1 --- Enables Frequency Reference 1 (constant n21).
= 2 --- Enables a voltage reference (0 to 10 V) of control circuit terminal.
= 3 --- Enables a current reference (4 to 20 mA) of control circuit terminal.
= 4 --- Enables a current reference (0 to 20 mA) of control circuit termi-

nal.

= 6 --- Enables MEMOBUS communications.

33

Operation Steps Operator

1. Turn the potentiometer fully counterclock­wise, and then turn the power ON.

2. F/R will flash.
Select FWD or REV RUN using the keys.

Never select REV when reverse run
is prohibited.

NOTE

Display

0.0

(Forward)
or

(Reverse)

Function

Indicators

FREFFREF

F/R

Status

Indicators

RUN
ALARM

RUN
ALARM

3. Press DSPL to make FREF flash. Then
press RUN.

4. Operate the motor by turning the potentiom­eter clockwise. (A frequency reference cor­responding to the potentiometer position will
be displayed.)

If the potentiometer is switched rap-

NOTE

idly, the motor also accelerates or
decelerates rapidly in proportion to
the potentiometer movement. Pay
attention to load status and switch
the potentiometer at a speed that
will not adversely affect motor move­ment.

0.0

0.0 to 60.0
(min-1)

Minimum
output
frequency
is 1.5 Hz.

Status indicators : ON : Flashing : OFF

 Operation Check Points

• Motor rotates smoothly.

• Motor rotates in the correct direction.

• Motor does not have abnormal vibration or noise.

• Acceleration and deceleration are smooth.

• Current matching the load flows.

• Status indicators and Digital Operator display are correct.

34

FREFFREF

FREFFREF

RUN
ALARM

RUN
ALARM

5. Operating the Inverter

 Operating the Digital Operator

All functions of the VS mini are set using the Digital Operator. Below
are descriptions of the display and keypad sections.

Digital Operator

Status indicators

Data display section

Press to switch
between functions.

Press to enter the
constant data.
(Displays the constant
data when
selecting a constant No.
for PRGM indicator.)

Press to increase
constant No./data value.

Details of Indicators (Color in parenthesis indicates the color of indicator.)

FREF

Frequency reference

setting/monitoring

(GREEN)

F/R

Operator RUN

command FWD/REV

selection
(GREEN)

Press to decrease
constant No./data
value.

FOUT

Output frequency

monitoring

(GREEN)

Press to stop the motor.
(Press to reset faults.)

IOUT

Output current

monitoring

(GREEN)

LO/RE

LOCAL/REMOTE

Selection

(RED)

Function indicators
Indicators switch to
another function each
time DSPL is pressed.
The displayed data can
be changed.

Frequency setting
potentiometer
Used to change
frequency setting.

Press to run the motor.

Multi-function

Constant No./data

MNTR

monitoring

(GREEN)

PRGM

(RED)

35

 Description of Status Indicators

There are two status indicators on the middle right section of the face of
the VS mini. The combinations of these indicators indicate the status of
the Inverter (ON, flashing, and OFF). RUN indicator and status indica-

RUN

tor on button have the same function.

:Flashing (long flashing) :Flashing

:ON

The following table shows the relationship between the Inverter condi­tions and the indicator on the RUN button of the Digital Operator as
well as the RUN and ALARM indicators on the face of the VS mini.

The indicators are lit, unlit or flashing reflecting the order of priority.

Priority

1

2

3

4

5

6

7

8

9

Digital

Operator

(Optional)

RUN RUN A LARM

Face of

the VS mini

Conditions

Power supply is shut down.
Until the Inverter become ready after the power is
turned ON.

Fault

Emergency stop (STOP command is sent from the
Digital Operator when the control circuit terminals
were used to operate the Inverter.)
Emergency stop (Emergency stop alarm is sent from
the control circuit terminal.)
Note: Indicators will be the same as with alarm
(stopped) occurring after the Inverter is stopped.

Emergency stop (Emergency stop fault is sent from
the control circuit terminal.)
Note: Indicators will be the same as with fault occur­ring after the Inverter is stopped.

Alarm (Stopped)

Alarm (Operating)
The RUN command is carried out when the External
baseblock command using the multi-function contact
input terminal is issued.

Stopped (During baseblock)

Operating (Including the status that the Inverter is op­erating at a frequency below the minimum output fre­quency.)
During dynamic braking when starting.

During deceleration to a stop
During dynamic braking when stopping.

For details on how the status indicators function for Inverter faults, refer
to Chapter 8. Fault Diagnosis. If a fault occurs, the ALARM indicator
will light.

:OFF

36

5. Operating the Inverter

The fault can be reset by turning ON the FAULT RESET sig-

NOTE

nal (or by pressing the key on the Digital Operator)

with the operation signal OFF, or by turning OFF the power
supply. If the operation signal is ON, the fault cannot be reset
using the FAULT RESET signal.

37

 Function Indicator Description

By pressing on the Digital Operator, each of the function indi­cators can be selected.

The following flowchart describes each function indicator.

Power ON

Frequency reference setting/monitoring
(Hz)
Sets VS mini operating speed.

Output frequency monitoring (Hz)
Displays frequency that VS mini is
currently outputting.
Setting disabled.

Output current monitoring (A)
Displays current that VS mini is currently
outputting.
Setting disabled.

Multi-function monitoring
Description of the selected monitor is
displayed.
(Refer to pages 39 for details.)

FWD/REV run selection
Sets the motor rotation direction when the RUN
command is given from the Digital Operator.
Setting can be changed using the or key.

(forward run) (reverse run)

If the VS mini
loses power while in
one of these modes,
it will return to the same
mode once power is
restored.

Monitor No.
U01: Frequency reference (FREF)
U02: Output frequency (FOUT)
U03: Output current (IOUT)
U04: Output voltage reference (Unit: 1V)
U05: DC voltage (Unit: 1V)
U06: Input terminal status
U07: Output terminal status
U09: Fault history
U10: Software number
U15: Data reception error

38

5. Operating the Inverter

LOCAL/REMOTE Selection

This function switches the operation; operation
using the digital operator including frequency
setting with potentiometer, or that using the input
terminals, or through communications
Setting can be changed using the or key.

(Local)

Constant No./data
Sets and changes data for a constant No.
(Refer to page 41.)

Return to

WARNING

If n01=5, a Run command can be received even while

(Remote)

changing a constant. If sending a Run command while
changing a constant, such as during a test run, be sure
to observe all safety precautions.
Failure to observe this warning may result in injury.

If the VS mini is
stopped after it has
changed to any of
these modes during
operation, it changes
to Program mode
from Drive mode.
Even if the Run
command is turned ON
again, the VS mini
does not operate.
However, if n01=5, the
Run command can be
received and the
VS mini will operate.

 MNTR Multi-function Monitoring

Selecting the Monitor

Press the key. When is ON, data can be displayed by

DSPL MNTR

selecting the monitor number.

Example: Monitoring the Output Voltage Reference

IOUT

DSPL

Select U04 by
pressing
or key.

DSPL

ENTER ENTERDSPL

MNTR

Output voltage reference
is displayed.

MNTR

or

F/R

39

Monitoring

The following items can be monitored using U constants.

Constant

No.

U01 Frequency Reference

U02 Output Frequency

U03 Output Current (IOUT) A Output current ca n be monitored.

U04 Output Voltage V Output voltage can be monitored.

U05 DC Voltage V Main circuit DC voltage can be monitored.

U06 Input Terminal Status - Input terminal status of control circuit ter minals can

U07 Out put Terminal Status - Output terminal status of control circuit terminals can

U09 Fault History - The last four fault history records are displayed.

U10 Software No. - Software number can be checked.

U15 Data Reception Error - Contents of MEMOBUS comm unication data recep-

Name Unit Description

(FREF)

(FOUT)

Hz Frequency reference can be monito red. (Same as

FREF)

Hz Output frequency can be monitored.

(Same as FOUT)

(Same as IOUT)

be monitored.

be monitored.

tion error can be checked.
(Contents of transmission register No. 00 3DH are
the same.)

 Input/Output Terminal Status

Input terminal status

1: Terminal S1 is closed.
1: Terminal S2 is closed.
1: Terminal S3 is closed.
1: Terminal S4 is closed.
1: Terminal S5 is closed.
Not used

Output terminal status

40

1: Terminal MA-MC is closed.

Not used

5. Operating the Inverter

Fault History Display Method

Fault description is displayed when U09 is selected.

(Example)

: Fault description

“---” is displayed if there is no fault.
(Refer to page 97 for details.)

Clearing the Fault History

Set constant n01 to 6 to clear the fault history. Set data returns to its ini­tial value after 6 is set.

Note: Initializing the constants (n01=8, 9) also clears the fault history.

Setting and Referencing Constants

The following diagram shows how to select and change constants.

REMOTE/LOCAL
selection

LO/RE

DSPL

• Setting n02 (RUN command selection)

PRGM

FREF

DSPL

Constant
No./
data

n02
RUN command
selection

ENTER ENTER

PRGM

PRGM

Initial setting: 0
operator reference

PRGM

Return to
constant No.
display

After
1 s

PRGM

Set to 1
Control circuit
terminal reference
(flashing at changing)

PRGM

Data set

 Simple Data Setting

Digital setting (refer to 5. Operating the Inverter) and potentiometer
setting are both possible for simple acceleration/deceleration operation
of the VS mini.

Frequency reference by potentiometer signal is set with initial setting
(n03=0).

Factory setting of the model with operator (without potentiometer) is set
by Digital Operator (n03=1).

41

Following is an example in which the function LEDs are used to set fre­quency reference, acceleration time, deceleration time, and motor direc­tion.

Operation Steps Operator

Display

1. Turn ON the power supply. 0.0

Function

Indicators

FREF

Stat us

Indicators

RUN
ALARM

2. Set constant n03 to 1. 1

3. Set the following constants.
n16: 15.0 (Acceleration Time)
n17: 5.0 (Deceleration Time)

15.0

5.0

4. Select forward or reverse run by pressing
the or key.

Examine the application. (Never
select REV when reverse run is pro-

NOTE

hibited.)

5. Set the reference by pressing the or

(Forward)

or

(Reverse)

60.0

key.

6. Press . 0.0 to 60.0

7. Press to stop.

60.0 to 0.0

Status indicators :ON :Flashing (long flashing) :Flashing :OFF

42

PRGM

PRGM

FR

FREF

FOUT

FOUT

RUN
ALARM

RUN
ALARM

RUN
ALARM

RUN
ALARM

RUN
ALARM

RUN

RUN
ALARM

6. Programming Features

6. Programming Features

Factory settings of the constants are shaded in the tables.

After wiring is complete, be sure to make the following settings before oper­ation.

 Hardware

Make the following settings before the Inverter is turned ON.

Item Ref.

Sequence input signal (S1 to S5) polarity selection 115

Voltage reference / current reference input selection of
control circuit terminal FR

 Software (Constant)

Item Ref.

Environment
setting

Basic
characteristics
and frequency
reference setting

Motor protection Motor Rated Current (n32) 81

Countermeasure
for noise and
leakage current,
Using an optional
braking resistor

Constant Selection / Initialization (n01) 44

RUN Command Selection (n02) 49

Frequency Reference Selection (n03) 50

Stopping Method Selection (n04) 67

V/f pattern setting (n09 to n15) 45

Acceleration Time 1 (n16),
Deceleration Time 1 (n17)

Frequency Reference 1 to 8
(n21 to n28)

Electric Thermal Motor Protection
Selection (n33)

Carrier Frequency Reference (n46) 64

75

55

51

81

43

 Constant Setup and Initialization

 Constant Selection/Initialization (n01)

The following table lists the data that can be set or read when n01 is set.
Unused constants between n01 and n79 are not displayed.

n01 Setting Constant That Can Be Set Constant That Can Be Referenced

0 n01 n01 to n79

1

5

6 Fault history cleared

7 Not used

8Initialize

9

* 1. Excluding setting-disabled constants.
* 2. Refer to page 70.

NOTE

returns to its initial values in the following cases.

1. If the set values of input terminal function selection 2 to 5

2. If the following conditions are not satisfied in the V/f pat-

3. If the following conditions are not satisfied in the jump

*1

n01 to n79

*1

n01 to n79
(Run command can be received in Program mode.)

Initialize (3-wire sequence)

*2

appears on the display for one second and the set data

(n36 to n39) are the same.

tern setting:
Max. Output Frequency (n09) ≥ Max. Voltage Output

Frequency (n11)
> Mid. Output Frequency
(n12)
≥ Min. Output Frequency

(n14)
For details, refer to Adjusting Torque According to Appli-
cation (V/f Pattern Setting) on page 45.

frequency settings:
Jump Frequency 2 (n50) ≤ Jump Frequency 1 (n49)

44

6. Programming Features

4. If the Frequency Reference Lower Limit (n31) ≤ Fre-

quency Reference Upper Limit (n30)

5. If the Motor Rated Current (n32) ≤ 120% of Inverter rated

current

 Selecting V/f Pattern

 Adjusting Torque According to Application

Adjust motor torque by using the V/f pattern and full-range automatic
torque boost settings.

V/f Pattern Setting

Set the V/f pattern in n09 to n15 as described below. Set each pattern
when using a special motor (e.g., high-speed motor) or when requiring
special torque adjustment of the machine.

V: (VOLTAGE)

n10

n13

n15

n14 n12 n11 n09

Constant

No.

n09 Max. Output Frequ ency 0.1 Hz 50.0 to 400 Hz 60.0 Hz

n10 Max. Voltage 1 V 1 to 255 V (1 to 510 V) 200 V

n11 Max. Voltage Output Fre-

quency (Base Frequency)

n12 Mid. Output Freque ncy 0.1 Hz 1 to 399 Hz 1.5 Hz

n13 Mid. Output Freque ncy

Voltage

n14 Min. Output Freque ncy 0.1 Hz 0.1 to 10.0 Hz 1.5 Hz

n15 Min. Output Freque ncy

Voltage

(FREQUENCY)

Name Unit Setting Range Initial

Be sure to satisfy the following
conditions for the settings of n09 to
n15.
n14 ≤ n12 < n11 ≤ n09
If n14 = n12, the setting of n13 will be

f

disabled.

0.1 Hz 0.2 to 400 Hz 60.0 Hz

1 V 1 to 255 V (1 to 510 V) 12 V

1 V 1 to 50 V (1 to 100 V) 12 V

Setting

(400 V)

(24 V)

(24 V)

45

Typical Setting of the V/f Pattern

Set the V/f pattern according to the application as described below. For
400-V Class Inverters, the voltage values (n10, n13, and n15) should be
doubled. When running at a frequency exceeding 50/60 Hz, change the
Maximum Output Frequency (n09).

Note: Always set the maximum output frequency according to the motor char-

acteristics.

1. For General-purpose Applications

Motor Specification: 60 Hz
(Factory setting)

V

200

12

1.5 60 f

Constant

n09
n10
n11
n12
n13
n14
n15

Setting

60.0

200.0

60.0

1.5
12

1.5
12

Motor Specification: 50 Hz

V

200

12

1.3 50 f

Constant

n09
n10
n11
n12
n13
n14
n15

2. For Fans/Pumps

Motor Specification: 60 Hz Motor Specification: 50 Hz

V

200

50

10

1.5 6030 f

Constant

n09
n10

n11
n12
n13
n14
n15

Setting

60.0

200.0

60.0

30.0
50

1.5
10

V

200

50

10

1.3 5025 f

Constant Setting

n09
n10
n11
n12
n13
n14
n15

3. For Applications Requiring High Starting Torque

Motor Specification: 60 Hz Motor Specification: 50 Hz

200

V

24
18

1.5

603f

Constant

n09
n10
n11
n12
n13
n14
n15

Setting

60.0

200.0

60.0

3.0
24

1.5
18

200

V

24
18

1.3502.5

Constant Setting

n09
n10

n11
n12
n13
n14
n15

f

200.0

Increasing the voltage of the V/f pattern increases motor torque, but
an excessive increase may cause motor overexcitation, motor over­heating, or vibration.

Setting

50.0

200.0

50.0

1.3
12

1.3
12

50.0

200.0

50.0

25.0
50

1.3
10

50.0

50.0

2.5
24

1.3
18

46

6. Programming Features

When operating with frequency larger than 60 Hz/50 Hz, change only
max. output frequency (n09).

Constant
Output or

Variable Output

Base Point

n11=60 Hz n09=90 Hz

n10
=200 V

Constant

Torque

Full-range Automatic Torque Boost

The motor torque requirement changes according to load conditions.
The full-range automatic torque boost adjusts the voltage of the V/f pat­tern according to requirements. The VS mini automatically adjusts the
voltage during constant-speed operation, as well as during acceleration.

The required torque is calculated by the Inverter.
This ensures tripless operation and energy-saving effects.

Output voltage Torque compensation gain (n63) Required torque

Operation

V

(Voltage)

Required torque

f (Frequency)

Increase voltage

Normally, no adjustment is necessary for the Torque Compensation
Gain (n63 factory setting: 1.0). When the wiring distance between the
Inverter and the motor is long, or when the motor generates vibration,
change the automatic torque compensation gain. In these cases, set the
V/f pattern (n09 to n15).

47

 Switching LOCAL/REMOTE Mode

The following functions can be selected by switching LOCAL or
REMOTE mode. To select the RUN/STOP command or frequency ref­erence, change the mode in advance depending on the following appli­cations.

• LOCAL mode: Enables the Digital Operator for RUN/STOP com-

• REMOTE mode: Enables RUN Command Selection (n02). The fre-

 How to Select LOCAL/REMOTE Mode

When LOCAL/REMOTE
switching function is not
set for multi-function
input selection

mands and FWD/REV RUN commands. The fre­quency reference can be set using the potentiometer

or .

quency reference can be set by n03 (frequency ref­erence selection) setting.

When LOCAL/REMOTE
switching function is set
for multi-function input

(When 17 is not set
for any of constants
n36 to n39)

selection

(When 17 is set for
any of constants
n36 to n39)

Select Lo for
operator

LO/RE

48

selection.

LOCAL mode

Select rE for
operator

selection.

LO/RE

Turn ON multi­function input
terminal.

Turn OFF multi­function input
terminal.

REMOTE mode

6. Programming Features

 Selecting RUN/STOP Commands

Refer to Switching LOCAL/REMOTE Mode (page 48) to select either
the LOCAL mode or REMOTE mode.

The operation method (RUN/STOP commands, FWD/REV RUN com­mands) can be selected using the following method.

 LOCAL Mode

When Lo (local mode) is selected for Digital Operator ON
mode, or when the LOCAL/REMOTE switching function is set and the
input terminals are turned ON, run operation is enabled by the or

on the Digital Operator, and FWD/REV is enabled by the

ON mode (using or key).

is not effective when local/remote switching function is

selected for multi-function input selection.

 REMOTE Mode

1. Select remote mode.
There are following two methods to select remote mode.

• Select rE (remote mode) for the selection.

• When the local/remote switching function is selected for the
multi-function input selection, turn OFF the input terminal to
select remote mode.

2. Select the operation method by setting constant n02.
n02 =0: Enables the Digital Operator (same with local mode).

=1: Enables the multi-function input terminal (see fig. below).
=2: Enables communications (refer to page 83) (When option
card is installed).

• Example when using the multi-function input terminal as opera­tion reference (two-wire sequence)

FWD RUN/STOP
REV RUN/STOP

n02: 1 (Initial setting: 0)
n36: 2

For an example of three-wire sequence, refer to page 70.

49

 Operating (RUN/STOP Commands) Using Communications

(When Option Card is Installed)

Setting constant n02 to 2 in REMOTE mode enables using RUN/STOP
commands via MEMOBUS communications. For commands using
MEMOBUS communications, refer to page 83.

 Selecting Frequency Reference

Frequency reference can be selected by the following methods.

 Setting by Operator

Select REMOTE or LOCAL mode in advance. For the method for
selecting the mode, refer to page 48.

LOCAL Mode

Select command method using constant n07.
n07=0: Enables using the potentiometer on the Digital Operator

(initial setting).
The factory setting for models with the Digital Operator
(without a potentiometer) is n07=1.
=1: Enables digital setting on the Digital Operator, setting value is
stored in constant n21 (frequency reference 1).

• Digital Setting Using the Digital Operator

Input the frequency while FREF is lit (press ENTER after setting the
numeric value).

Frequency reference setting is effective when 1 is set for constant n08
instead of pressing ENTER.

n08 =0: Enables frequency reference setting using the ENTER key

(initial setting).
=1: Disables frequency reference setting using the ENTER key.

REMOTE Mode

Select the command method in constant n03.
n03 =0: Enables frequency reference setting using the potentiometer
on the Digital Operator (initial setting).
Factory setting of models with the Digital Operator (without a
potentiometer) is n03=1.

=1: Enables using frequency reference 1 (n21)
=2: Enables a voltage reference. (0 to 10 V) (See the following

figure.)

=3: Enables current reference. (4 to 20 mA) (Refer to page 75.)
=4: Enables current reference. (0 to 20 mA) (Refer to page 75.)

50

6. Programming Features

=6: Enables communications. (Refer to page 83.)

Example of frequency reference by voltage signal

n03 : 2
(Factory setting: 0)

IM

Master Speed
Frequency
Reference

2 kΩ

FS (Frequency Setting Power
+12 V 20 mA)

(0 to +10 V)

FR

FC (0 V)

 Setting Operation Conditions

 Reverse Run Prohibit (n05)

The Reverse Run Prohibit setting disables accepting a reverse RUN
command from the control circuit terminal or Digital Operator. This set­ting is used for applications where a reverse RUN command can cause
problems.

Setting Description

0 Reverse run enabled.

1 Reverse run disabled.

 Multi-step Speed Selection

Up to 16 speed steps (including Jog frequency reference) can be set
using the following combinations of frequency reference and input ter­minal selections.

8-step speed change

n02=1 (Operation mode selection)
n03=1 (Frequency reference selection)
n21=25.0 Hz (Frequency reference 1)
n22=30.0 Hz (Frequency reference 2)
n23=35.0 Hz (Frequency reference 3)
n24=40.0 Hz (Frequency reference 4)
n25=45.0 Hz (Frequency reference 5)
n26=50.0 Hz (Frequency reference 6)
n27=55.0 Hz (Frequency reference 7)
n28=60.0 Hz (Frequency reference 8)

When all multi-function

NOTE

reference inputs are OFF, the
frequency reference selected
by constant n03 (frequency
reference selection) becomes
effective.

n36=1
n37=6 (Multi-function contact input terminal S3)
n38=7 (Multi-function contact input terminal S4)
n39=8 (Multi-function contact input terminal S5)

FWD
RUN/STOP
REV
RUN/STOP
MULTI-STEP
SPEED REF 1
MULTI-STEP
SPEED REF 2
MULTI-STEP
SPEED REF 3

n36=2 (Input terminal S2) Initial Setting
n37=6 (Input terminal S3) Change the setting to 6.
n38=7 (Input terminal S4) Change the setting to 7.
n39=8 (Input terminal S5) Change the setting to 8.

S1

S2

S3

S4

S5

SC

51

(n28) 60.0 Hz

(n27) 55.0 Hz

(n26) 50.0 Hz

(n25) 45.0 Hz

(n24) 40.0 Hz

(n23) 35.0 Hz

Frequency
reference

FWD (REV) RUN/STOP

Multi-step speed ref. 1
(terminal S3)
Multi-step speed ref. 2
(terminal S4)
Multi-step speed ref. 3
(terminal S5)

(n22) 30.0 Hz

(n21) 25.0 Hz

 Operating at Low Speed

By inputting a JOG command and then a FORWARD (REVERSE)
RUN command, operation is enabled at the jog frequency set in n29.
When multi-step speed references 1, 2, 3 or 4 are input simultaneously
with the JOG command, the JOG command has priority.

Constant No. Name Setting

n29 Jog Frequency Initial setting: 6.0 Hz

n36 to n39 Jog References Set to 10 for any constant.

Time

52

6. Programming Features

 Adjusting Speed Setting Signal

The relationship between the analog inputs and the frequency reference
can be set to provide the frequency reference by analog input of control
circuit terminal FR or FC.

Frequency Reference

Max. Output Frequency

Max. Output Frequency

Gain

100

Bias

100

(4 mA)
(0 mA)

• Frequency reference gain (n41)

The analog input voltage value for the max. output frequency (n09)
can be set in units of 1% (max. output frequency n09=100%).

* Factory setting: 100%

• Frequency reference bias (n42)

The frequency reference provided when analog input is 0 V (4 mA
or 0 mA) can be set in units of 1% (max. output frequency
n09=100%).

* Factory setting: 0%

Typical Settings

• To operate the Inverter with a frequency reference of 50% to
100% at an input voltage of 0 to 5 V

Max. frequency (100 %)

Gain n41 = 200
Bias n42 = 0

(20 mA)
(20 mA)

( ) indicates the value when a current
reference input is selected.

53

• To operate the Inverter with a frequency reference of 50% to
100% at an input voltage of 0 to 10 V

Max. frequency (100 %)

0 V 10 V

Gain n41 = 100
Bias n42 = 50

 Adjusitng Frequency Upper and Lower Limits

• Frequency Reference Upper Limit (n30)

Sets the upper limit of the frequency refer­ence in units of 1%.
(n09: Max. Output Frequency = 100%)
Factory setting: 100%

• Frequency Reference Lower Limit (n31)

Internal
frequency
reference

Set frequency reference

Frequency
Lower Limit
(n31)

Frequency
Upper Limit
(n30)

Sets the lower limit of the frequency refer­ence in units of 1%.
(n09: Max. Output Frequency = 100%)
When operating at a frequency reference of
0, operation is continued at the frequency
reference lower limit.
However, if the frequency reference lower
limit is set to less than the Minimum Output
Frequency (n14), operation is not performed.
Factory setting: 0%

54

6. Programming Features

 Using Two Acceleration/Deceleration Times

Decel
Time 1
(n17)

ON

ON

Accel
Time 2
(n18)

Output
Frequency

FORWARD (REVERSE)
RUN command

Multi-Step
Speed Reference

Accel/Decel
Time Selection
(Terminals S2 to S5) (See note.)

Accel
Time 1
(n16)

* When deceleration to a stop is selected (n04 = 0).

ON

Decel
Time 2*
(n19)

Decel
Time 1*
(n17)

Time

By setting input terminal function selection (either of n36 to n39) to 11
(acceleration/deceleration time select), the acceleration/deceleration
time is selected by turning ON/OFF the acceleration/deceleration time
selection terminals (terminals S2 to S5).

At OFF: n16 (Acceleration Time 1)

n17 (Deceleration Time 1)

At ON: n18 (Acceleration Time 2)

n19 (Deceleration Time 2)

• Acceleration time
Set the time needed for the output frequency to reach 100% from 0%.

• Deceleration time
Set the time needed for the output frequency to reach 0% from 100%.
(Max. Output Frequency n09 = 100%)

55

 Momentary Power Loss Ridethrough Method (n47)

When constant n47 is set to 1 or 2, operation automatically restarts even
if a momentary power loss occurs.

Setting Description

0 Continuous operation after momentary power

loss not enabled.

*1

1

*1, *2

2

* 1. Hold the operation signal to continue operation after recovery from a

momentary power loss.

* 2. When 2 is selected, the Inverter restarts if power supply voltage recovers

while the control power supply is held.
No fault signal is output.

Continuous operation after power recovery
within momentary power loss ridethrough time

Continuous operation after power recovery
(Fault output not produced.)

 S-curve Selection (n20)

To prevent shock when starting and stopping the machine, acceleration/
deceleration can be performed using an S-curve pattern.

Setting S-curve Selection

0 S-curve characteristic not provided.

1 0.2 s

2 0.5 s

3 1.0 s

Note: The S-curve characteristic time is the time from acceleration/decelera-

tion rate 0 to the normal acceleration/deceleration rate determined by the
set acceleration/deceleration time.

Frequency
Reference

Output
Frequency

56

Output
Frequency

S-curve Characteristic Time (Tsc)

Time

6. Programming Features

F

The following time chart shows switching between FWD/REV run
when decelerating to a stop.

ORWARD RUN Command

REVERSE RUN Command

Output Frequency

S-curve Characteristics in

Acceleration

Min. Output
Frequency n14

Deceleration

MIN. OUTPUT FREQUENCY

Acceleration

n14

DC Injection Braking
Time at Stop
n53

Deceleration

 Torque Detection

If an excessive load is applied to the machine, an increase in the output
current can be detected to output an alarm signal to multi-function out­put terminal MA or MB.

To output an overtorque detection signal, set one of the output terminal
function selection n40 for overtorque detection (Setting: 6 (NO contact)
or 7 (NC contact)).

Motor Current

n60

Multi-function output signal
(overtorque detection signal)
Terminal MA or MB

* The overtorque detection release width (hysteresis) is set at approx. 5% of

the Inverter rated current.

n61

n61

Time

57

Overtorque Detection Function Selection (n59)

Setting Description

0 Overtorque detection not provided.

1 Detected during constant-speed running. Oper-

2 Detected during constant-speed running. Oper-

3 Detected during running. Operation continues

4 Detected during running. Operation stops dur-

1. To detect overtorque during acceleration/deceleration, set n59 to 3 or 4.

2. To continue operation after overtorque detection, set n59 to 1 or 3.
During detection, the operator will display an alarm (flashing).

3. To stop the Inverter and generate a fault at overtorque detection, set n59
to 2 or 4. At detection, the Digital Operator will display an fault
(ON).

ation continues after detection.

ation stops during detection.

after detection.

ing detection.

Overtorque Detection Level (n60)

Set the overtorque detection current level in units of 1%. (Inverter rated
current = 100%)

Factory setting: 160%

Overtorque Detection Time (n61)

If the time that the motor current exceeds the Overtorque Detection
Level (n60) is longer than Overtorque Detection Time (n61), the over­torque detection function will operate.
Factory setting: 0.1 s

58

6. Programming Features

 Frequency Detection Level (n58)

Effective when the Multi-function Output Selection n40 is set for fre­quency detection (setting: 4 or 5). Frequency detection turns ON when
the output frequency is higher or lower than the setting for the Fre­quency Detection Level (n58).

Frequency Detection 1

Output frequency ≥ Frequency Detection Level n58 (Set n40 to 4.)

Release

Frequency Detection
Level [Hz] (n58)

Output
Frequency

Frequency
Detection
Signal

Width

−2Hz

Frequency Detection 2

Output frequency ≤ Frequency Detection Level n58 (Set n40 to 5.)

Release

Output
Frequency

Frequency
Detection
Signal

Width
+2Hz

Frequency
Detection
Level (Hz)
(n58)

59

 Jump Frequencies (n49 to n51)

This function allows the prohibition or “jumping” of critical frequencies
so that the motor can operate without resonance caused by the machine
system. This function is also used for dead band control. Setting the val­ues to 0.00 Hz disables this function.

Set prohibited frequency 1 or 2 as follows:

Output Frequency

n49

n50

n51

n51

Frequency Reference

n49 ≥ n50

If this condition is not satisfied,
the Inverter will display for
one second and restore the
data to initial settings.

Operation is prohibited within the jump frequency ranges.
However, the motor will operate without jumping during acceleration/
deceleration.

 Continuing Operation Using Automatic Retry Attempts (n48)

The Inverter can be set to restart and reset fault detection after a fault
occurs. The number of self-diagnosis and retry attempts can be set to up
to 10 in n48. The Inverter will automatically restart after the following
faults occur:

OC (overcurrent)

GF (ground fault)

OV (overvoltage)

The number of retry attempts is cleared to 0 in the following cases:

1. If no other fault occurs within 10 minutes after retry

2. When the FAULT RESET signal is ON after the fault is detected

3. When the power supply is turned OFF

60

6. Programming Features

 Operating a Coasting Motor without Tripping

To operate a coasting motor without tripping, use the SPEED SEARCH
command or DC injection braking at startup.

SPEED SEARCH Command

Restarts a coasting motor without stopping it. This function enables
smooth switching between motor commercial power supply operation
and Inverter operation.

Set a Multi-function Input Selection (n36 to n39) to 14 (SEARCH com­mand from maximum output frequency) or 15 (SEARCH command
from set frequency).

Build a sequence so that a FWD (REV) RUN command is input at the
same time as the SEARCH command or after the SEARCH command.
If the RUN command is input before the SEARCH command, the
SEARCH command will be disabled.

Time Chart at SEARCH Command Input

FWD (REV) RUN Command

SEARCH Command

Max. Output Frequency or
Frequency Reference at
RUN Command Input

Output Frequency

Min. Baseblock
Time (0.5 s)

Speed Agreement
Detection

Speed
Search
Operation

DC Injection Braking at Startup (n52, n54)

Restarts a coasting motor after stopping it. Set the DC injection braking
time at startup in n54 in units of 0.1 second. Set the DC Injection Brak­ing Current in n52 in units of 1% (Inverter rated current =100%). When
the setting of n54 is 0, DC injection braking is not performed and accel­eration starts from the minimum output frequency.

When n52 is set to 0, acceleration starts
from the minimum output frequency after
baseblocking for the time set in n54.

Min. Output
Frequency
n14

n54
DC Injection Braking
Time at Startup

61

 Holding Acceleration/Deceleration Temporarily

To hold acceleration or deceleration, input an ACCELERATION/
DECELERATION HOLD command. The output frequency is main­tained when an ACCELERATION/DECELERATION HOLD command
is input during acceleration or deceleration.

When the STOP command is input while an ACCELERATION/
DECELERATION PROHIBITION command is being input, the accel­eration/deceleration hold is released and operation ramps to a stop.

Set a Multi-function Input Selection (n36 to n39) to 16 (acceleration/
deceleration prohibit).

Time Chart for ACCELERATION/DECELERATION HOLD
Command Input

FWD (REV)
RUN Command

ACCELERATION/
DECELERATION
HOLD Command

Frequency
Reference

Output
Frequency

FREQUENCY
AGREE
Signal

Note: If a FWD (REV) RUN command is input at the same time as an

ACCELERATION/DECELERATION HOLD command, the motor will
not operate. However, if the Frequency Reference Lower Limit (n31) is
set to a value greater than or equal to the Min. Output Frequency (n14),
the motor will operate at the Frequency Reference Lower Limit (n31).

62

6. Programming Features

 Using Frequency Meter or Ammeter (n44)

Select to output either output frequency or output current to analog out­put terminals AM-AC for monitoring.

Setting Description

0 Output frequency

1 Output current

In initial setting, analog voltage of approx. 10 V is output when output
frequency (output current) is 100%.

Output Frequency

FMAM

(Output Current)

100 %

0

Analog monitor gain
can be set by n45.

3 V 10 V

Analog Output

Frequency Meter

0 to 10 VDC

AC

 Calibrating Frequency Meter or Ammeter (n45)

Used to adjust analog output gain.

FM

Output Frequency
(Output Current)

100%

0

Analog Output

n45 = 0.30

Factory Setting
n45 = 1.00

10 V3 V

Frequency Meter/Ammeter

3 V 1 mA Full-scale)

(

AM

n45

AC

Set the analog output voltage at 100% of output frequency (output cur­rent).

Frequency meter displays 0 to 60 Hz at 0 to 3 V.

10 V ×

n45 setting

0.30

Output frequency becomes

= 3 V

100 % at this value.

63

 Reducing Motor Noise or Leakage Current Using Carrier Fre-

quency Selection (n46)

Set the Inverter output transistor switching frequency (carrier fre­quency).

Setting Carrier Frequency Metallic Noise

7 12 fout (Hz)

8 24 fout (Hz)

9 36 fout (Hz)

1 2.5 (kHz)

2 5.0 (kHz)

3 7.5 (kHz)

4 10.0 (kHz)

from Motor

Higher

Not

audible

Noise and Cur-

rent Leakage

Smaller

Larger

If the set value is 7, 8, or 9, the carrier frequency will be multiplied by
the same factor as the output frequency.

n46=7

fc=12 fout

fc=Carrier Frequency

2.5 kHz

1.0 kHz

83.3 Hz 208.3 Hz

fout=Output Frequency

64

n46=8

fc=24 fout

n46=9

fc=36 fout

fc=Carrier Frequency

2.5 kHz

1.0 kHz

fc=Carrier Frequency

2.5 kHz

1.0 kHz

27.7 Hz 69.4 Hz

41.6 Hz 104.1 Hz

fout=Output Frequency

fout=Output Frequency

6. Programming Features

The factory setting depends on the Inverter capacity (kVA).

Voltage

Class (V)

Single-

phase or

3-phase

3-phase

Capacity

(kW)

200 V

400 V

NOTE

0.1 4 10 0.8 -

0.2 4 10 1.6

0.4 4 10 3.0

0.75 4 10 5.0

1.5 3 7.5 8.0 7.0

2.2 3 7.5 11.0 10.0

3.7 3 7.5 17.5 16.5

0.2 3 7.5 1.2 1.0

0.4 3 7.5 1.8 1.6

0.75 3 7.5 3.4 3.0

1.5 3 7.5 4.8 4.0

2.2 3 7.5 5.5 4.8

3.0 3 7.5 7.2 6.3

3.7 3 7.5 8.6 7.6

1. Reduce the continuous output current when changing the
carrier frequency to 4 (10 kHz) for 200 V Class (1.5 kW

Initial Setting Maximum

Setting Carrier Fre-

quency (kHz)

Continuous
Output Cur-

rent (A)

or more) and 400 V Class Inverters. Refer to the table
above for the reduced current.
Operation Condition

• Input power supply voltage:
3-phase 200 to 230 V (200 V Class)
Single-phase 200 to 240 V (200 V Class)
3-phase 380 to 460 V (400 V Class)

• Ambient temperature:

−10 to 50°C
(Protection structure: open chassis type IP20)

Reduced

Current

(A)

65

2. If the wiring distance is long, reduce the Inverter carrier
frequency as described below.

Wiring Distance

between Inverter

and Motor

Carrier Frequency

(n46 setting)

Up to 50 m Up to 100 m More than

10 kHz or less

(n46=1, 2, 3, 4, 7,

8, 9)

5 kHz or less

(n46=1, 2, 7, 8, 9)

2.5 kHz or less
(n46=1, 7, 8, 9)

3. The carrier frequency is automatically reduced to 2.5 kHz
when the Reducing Carrier Frequency Selection at Low
Speed (n75) is set to 1 and the following conditions are
satisfied:

Output frequency ≤ 5 Hz
Output current ≥ 110%

Factory setting: 0 (Disabled)

 Operator Stop Key Selection (n06)

Set the processing when the STOP key is “pressed” during operation
either from a multi-function input terminal or communications.

Setting Description

0 The STOP key is effective either from a multi-

1 The STOP key is ineffective either from multi-

function input terminal or communications. When
the STOP key is pressed, the Inverter stops ac­cording to the setting of constant n04. At this time,
the Digital Operator displays a alarm
(flashing). This STOP command is held in the
Inverter until both forward and reverse RUN com­mands are open, or until the RUN command from
communications goes to zero.

function input terminals or communications.

100 m

66

6. Programming Features

 Selecting the Stopping Method

 Stopping Method Selection (n04)

Select the stopping method suitable for the application.

Setting Description

0 Deceleration to a stop

1 Coast to a stop

Deceleration to a Stop

Example when acceleration/deceleration time 1 is selected

Acceleration

Output
Frequency

FWD (REV)
RUN
Command

Time 1
(n16)

* Changing the Frequency Reference while Running

Upon termination of a FWD (REV) RUN command, the motor deceler­ates at the deceleration rate determined by the time set in Deceleration
Time 1 (n17) and DC injection braking is applied immediately before
stopping. DC injection braking is also applied when the motor deceler­ates because the frequency reference is set lower than the Min. Output
Frequency (n14) when the FWD (REV) RUN command is ON. If the
deceleration time is short or the load inertia is large, an overvoltage
(OV) fault may occur at deceleration. In this case, increase the decelera­tion time.

Deceleration
Time 1
(n17)

Deceleration
Time 1 (n17)

Time

Min. OutputFrequency
(Frequency at
DC Injection Braking
Startup) n14
(Factory Setting: 1.5 Hz)

DC Injection Braking
Time at Stop (n53)
(Factory Setting: 0.5 s)

67

Coast to a Stop



Example when Acceleration/deceleration Time 1 is selected

Acceleration

Output
Frequency

FWD (REV)
RUN Command

Time 1
(n16)

Deceleration
Time 1
(n17)

Coast to
stop

Time

* Changing the Frequency Reference while Running

Upon termination of the FWD (REV) RUN command, the motor
starts coasting.

 Applying DC Injection Braking

DC Injection Braking Current (n52)

Sets the DC injection braking current in units of 1%. (Inverter rated cur­rent=100%)

DC Injection Braking Time at Stop (n53)

Sets the DC injection braking time at stopping in units of 0.1 second.
When the setting of n53 is 0, DC injection braking is not performed, but
the Inverter output is turned OFF when DC injection braking is started.

n14 Min.
Output
Frequency

n53
DC Injection Braking
Time at Stop

When coasting to a stop is specified in the Stopping Method Selection
(n04), DC injection braking is not applied when stopping.

68

6. Programming Features

 Building Interface Circuits with External Devices

 Using Input Signals

The functions of multi-function input terminals S2 to S5 can be changed
as necessary by setting constants n36 to n39. The same value cannot be
set for more than one of these constants.

Setting Name Description Ref.

0 FWD/REV RUN command

(3-wire sequence selection)

2 REVERSE RUN command

(2-wire sequence selection)

3 External fault,

4 External fault,

5 Fault reset Resets a fault. Fault reset

6 Multi-step speed reference 1 51

7 Multi-step speed reference 2 51

8 Multi-step speed reference 3 51

10 JOG command 52

11 Acceleration/deceleration

12 External baseblock,

13 External baseblock,

14 SEARCH command from

15 SEARCH command from set

16 ACCELERATION/

17 LOCAL/REMOTE selection 48

18 Communications/control cir-

NO contact input

NC contact input

time selection

NO contact input

NC contact input

maximum frequency

frequency

DECELERATION HOLD

command

cuit terminal selection

Setting possible only for n37. 70

Inverter stops for an external

fault signal input. Digital

Operator displays EF*.

not effective when the RUN

signal is ON.

Motor coasts to a stop for

this signal input. Digital
Operator displays .

SPEED SEARCH command

signal

49

55

61

61

62

73

-

-

-

-

-

69

Setting Name Description Ref.

19 Emergency stop fault,

20 Emergency stop alarm,

21 Emergency stop fault,

22 Emergency stop alarm,

NO contact input

NO contact input

NC contact input

NC contact input

34 UP/DOWN commands Setting enabled only for n39

35 Self-test Setting enabled only for n39

1, 9, 23

to 33

* Numbers 2 to 5 are displayed for  to indicate the terminal numbers S2 to

S5.

Not used Set to one of 1, 9, 23 to 33 if

Inverter stops for an emer­gency stop signal input ac­cording to the Stopping
Method Selection (n04).
When frequency coastin g to
a stop (n04 is set to 1) is se­lected, the Inverter coasts to
a stop according to
Deceleration Time Setting 2
(n19).
Digital Operator displays

. (Lit for fault, flashing

for alarm.)

(terminal S5)

(terminal S5)

a terminal is not used.

-

-

-

-

72

-

-

Initial Settings

No. Terminal Initial Setting Function

n36 S2 2 REVERSE RUN command (2-

wire sequence)

n37 S3 5 Fault reset

n38 S4 3 External fault (NO contact input)

n39 S5 6 Multi-step speed reference 1

Terminal Functions for 3-wire Sequence Selection

When 0 is set for terminal S3 (n37), terminal S1 is the RUN command,
terminal S2 is the STOP command, and terminal S3 is the FWD/REV
RUN command.

STOP SW
(NC Contact)

RUN SW
(NO Contact)

VS mini

RUN Command
(Run when closed)
STOP Command
(Stop when open)
FWD/REV RUN Selection

FWD run when open
REV run when closed

70

6. Programming Features

WARNING

To select the 3-wire sequence, set terminal S3 (n37) to

0.
Failure to observe this warning may result in injury.

LOCAL/REMOTE Selection (Setting: 17)

Select the operation reference from either the Digital Operator or from
the settings of the RUN Command Selection (n02) and Frequency Ref­erence Selection (n03). The LOCAL/REMOTE Selection can be used
only when stopped.

Open: Run according to the setting of RUN Command Selection

(n02) or Frequency Reference Selection (n03).

Closed: Run according to the frequency reference and RUN command

from the Digital Operator.

Example: Set n02=1, n03=2, n07=0.

Open: Run according to the frequency reference from multi-function

input terminal FR and RUN command from multi-function
input terminals S1 to S5.

Closed: Run according to the potentiometer frequency reference and

RUN command from the Digital Operator.

UP/DOWN Commands (Setting: n39 = 034)

When the FWD (REV) RUN command is ON, acceleration/deceleration
is enabled by inputting the UP or DOWN signal from multi-function
input terminals S4 and S5 without changing the frequency reference.
Operation can thus be performed at the desired speed. When UP/
DOWN commands are specified in n39, any function set in n38 is dis­abled, terminal S4 is the input terminal for the UP command, and termi­nal S5 is the input terminal for the DOWN command.

Multi-function Input Termi­nal S4 (UP command)

Multi-function Input Termi­nal S5 (DOWN command)

Operation Status Accel-

Closed Open Open Closed

Open Closed Open Closed

eration

Decel-

eration

Hold Hold

71

Time Chart for UP/DOWN Command Input

FWD RUN

UP Command S4

DOWN Command S5

Upper Limit Speed

Lower Limit Speed
Output Frequency

FREQUENCY Agree
Signal

U = UP (accelerating) status
D = DOWN (decelerating) status
H = HOLD (constant speed) status
U1 = UP status, clamping at upper limit speed
D1 = DOWN status, clamping at lower limit speed

Note: 1. When UP/DOWN commands are selected, the upper limit speed is set

regardless of frequency reference.
Upper limit speed =Maximum Output Frequency (n09)
× Frequency Reference Upper Limit (n30)/100%

2. Lower limit value is either the Minimum Output Frequency (n14) or

Maximum Output Frequency (n09) × Frequency Reference Lower
Limit (n31)/100% (whichever is larger.).

3. When the FWD (REV) RUN command is input, operation starts at the
lower limit speed without using the UP/DOWN commands.

4. If the JOG command is input while running for an UP/DOWN com­mand, the JOG command has priority.

5. Multi-step speed references 1 to 3 are not effective when an UP/
DOWN command is selected. Multi-step speed references are effec­tive while running in hold status.

6. When 1 is set for the HOLD Output Frequency Memory Selection
(n62), the output frequency can be recorded during HOLD.

Setting Description

0 Output frequency is not recorded during

HOLD.

1 When HOLD status is continued for 5 seconds

or longer, the output frequency during HOLD
is recorded and the Inverter restarts at the re­corded frequency.

72

6. Programming Features

Communications/Multi-function Input Terminal Selection
(Setting: 18)

(This function is effective when option card is installed.)

Operation can be changed from communications commands, or from
multi-function input terminal or Digital Operator commands.

RUN commands from communications and the frequency reference are
effective when the multi-function input terminal for this setting is
closed.

RUN commands in LOCAL/REMOTE mode and the frequency refer­ence are effective when the terminal is open.

 Using Output Signals (n40)

The functions of multi-function output terminals MA and MB can be
changed as necessary by setting constants n40.

• Terminal MA and MB functions: Set to n40

Setting Name Description Ref.

0 Fault Closed when Inverter fault oc-

1 Operating Closed when either FWD/REV

2 Frequency agree Closed when the set frequency

3 Zero speed Closed when Inverter output fre-

4 Frequency detection 1 Output frequency ≥ Frequency

5 Frequency detection 2 Output frequency ≤ Frequency

6 Overtorque detection,

NO contact output

7 Overtorque detection,

NC contact output

8, 9 Not used Set to one of 8 or 9 if a terminal is

10 Minor fault Closed when an alarm has been

curs.

command is input or voltage is
output from the Inverter.

agrees with Inverter output fre­quency.

quency is less than minimum out­put frequency.

Detection Level (n58)

Detection Level (n58)

-57

-57

not used.

detected.

-

-

74

-

59

59

-

-

73

Setting Name Description Ref.

11 Base blocked Closed when the Inverter output

12 Operating mode Closed when LOCAL is selected

13 Inverter operation ready Closed when an Inverter fault is

14 Fault restart Closed during fault retries. -

15 UV Closed when undervoltage is de-

16 Reverse run Closed during reverse run. -

17 Speed search Closed when Inverter conducts a

18 Data output from com-

munications

is OFF.

for the LOCAL/REMOTE selec­tion.

not detected, and operation is
ready.

tected.

speed search.

Operates multi-function output
terminal independently from In­verter operation (by MEMOBUS
communications)

83

Initial Settings

No. Terminal Initial Setting

n40 MA, MB 1 (operating)

• FREQUENCY AGREE Signal (setting=2)

-

-

-

-

-

FREQUENCY AGREE Signal

74

Detection width

±2 Hz

Output Frequency

Release Width
±4 Hz

6. Programming Features

 Setting Frequency by Current Reference Input

When setting frequency by input­ting current reference (4-20 mA or
0-20 mA) from the control circuit
terminal FR, switch the DIP
switch SW8 on the control circuit
board to “I” side.
SW8 is accessed by removing the
option cover.

SW8

VI

Never input voltage reference to control circuit terminal FR

NOTE

when DIP switch SW8 is switched to “I” side.

SW8

75

Current Reference Selection

After changing DIP switch (V/I switch of SW8) to the “I” side, press

on the Digital Operator, then set the following constants.

4-20 mA.....n03=3

0-20 mA.....n03=4

• Setting: n02=0, n03=3 or 4

Press the Digital Operator keys to
run or stop the Inverter. Switch

IM

run and stop direction by setting

Current

Reference

4-20 mA

0-20 mA

(n03 =
3 or 4)

FS
FR

or

FC

F/R LED.

Set frequency by the analog cur­rent signal [0-100% (max. fre­quency)/4-20 mA or 0-20 mA]
connected to the control circuit
terminal.

• Setting: n02=1, n03=3 or 4

Switch run/stop and FWD/REV
run with switching device con-

IM

FWD RUN/STOP

REV RUN/STOP

Current

Reference

4-20 mA

0-20 mA

(n03 =
3 or 4)

S1
S2
SC

FS
FR

or

FC

nected to the control circuit termi­nal.
Multi-function input terminal S2
is set to Reverse run/stop (n36=2).

Set frequency by the analog cur­rent signal [0-100% (max. fre­quency)/4-20 mA or 0-20 mA]
connected to the control circuit
terminal.

Frequency reference gain (n41)/bias (n42) can be set even when current
reference input is selected. For details, refer to Adjusting Speed Setting
Signal on page 53.

76

6. Programming Features

 Preventing the Motor from Stalling (Current

Limit)

This function automatically adjusts the output frequency and output cur­rent according to the load to continue operation without stalling the
motor.

Stall Prevention (Current Limit) Level during Acceleration
(n56)

Sets the stall prevention (current limit) level during acceleration in units
of 1%. (Inverter rated current = 100%)

Factory setting: 170%

A setting of 200% disables the stall prevention (current limit) during
acceleration. If the output current exceeds the value set for n56 during
acceleration, acceleration stops and the frequency is maintained. When
the output current goes to the value set for n56, acceleration starts.

Motor Current

n56

Output
Frequency

*1: Stops the acceleration to prevent the motor

2

*

from stalling.

Time

2

: Release width (hysteresis) of stall

*
prevention during accel is approx. 5% of
inverter rated current

Time

1

*

77

In the constant output area (output frequency > Max. Voltage Output
Frequency (n11)), the stall prevention (current limit) level during
acceleration is automatically decreased using the following equa­tion.

Stall prevention (current limit) level during
acceleration in constant output area

Stall prevention (current limit)
level during acceleration (n56)

Stall Prevention Level
during Acceleration

Max. voltage output frequency (n11)

Output frequency

Stall Prevention Level during
Acceleration (n56)

Stall Prevention Limit during
Acceleration (40% of n56)

Maximum Voltage
Output Frequency
n11

Output Frequency

Stall Prevention (Current Limit) Level while Running (n57)

Sets the stall prevention (current limit) level while running in units of
1%. (Inverter rated current = 100%)

Factory setting: 160%

A setting of 200% disables stall prevention (current limit) while run­ning.

If the stall prevention action current at speed agreement exceeds the
value set for n57 for longer than 100 ms, deceleration starts.

If the output current exceeds the value set for n57, deceleration contin­ues. If the output current goes to the value set for n57, acceleration to
the set frequency starts.

Stall prevention acceleration/deceleration settings during operation are
set either for the currently selected Acceleration Time, i.e., for Acceler-

78

6. Programming Features

ation Time 1 (n16) and Deceleration Time 1 (n17), or for Acceleration
Time 2 (n18) and Deceleration Time 2 (n19).

Motor Current

n57

Output
Frequency

*1: Decreases frequency to prevent the motor
from stalling.

2

*

2

: At start of acceleration, the output current

*
hysterisis is approx. 5% of Inverter rated

Time

current.

100ms

*

Time

1

• Stall Prevention (Current Limit) during Deceleration (n55)

To prevent overvoltage during deceleration, the Inverter automati­cally extends the deceleration time according to the value of main
circuit DC voltage.

Controls the deceleration

Setting

Stall Prevention

time to prevent overvoltage
fault.

(Current Limit)

during Deceleration

0 Provided

1 Not provided

Frequency

Set

Decel

Time

Time

79

 Decreasing Motor Speed Fluctuation

 Slip Compensation

As the load becomes larger, the motor speed is reduced and the motor
slip value is increased. The slip compensating function controls the
motor speed at a constant value even if the load varies.

When the Inverter output current is equal to the Motor Rated Current
(n32), the compensation frequency is added to the output frequency.

Compensation frequency = Motor rated slip (n64)

Output current − Motor no-load current (n65)

×

Motor rated current (n32) − Motor no-load current (n65)

Slip compensation gain (n66)

×

Related Constants

Constant

No.

n32 Motor Rated Current 0.1 A 0% to 120% of Inverter

n64 Motor Rated Slip 0.1 Hz 0.0 to 20 Hz *

n65 Motor No-load Current 1% 0% to 99% (100%=Mo-

n66 Slip Compensation

n67 Slip Compensation

* Depends on Inverter capacity.
Note: 1. Slip compensation is not performed under the following condition:

Output frequency < Minimum Output Frequency (n14)

2. Slip compensation is not performed during regeneration.

3. Slip compensation is not performed when the Motor Rated Current
(n32) is set to 0.0 A.

Name Unit Setting Range Initial

rated current

tor Rated Current n32)

Gain

Time Constant

0.1 0.0 to 2.5 0.0

0.1 s 0.0 to 25.5 s
When 0.0 s is set, delay
time is 2.0 s.

Setting

*

*

2.0 s

80

6. Programming Features

 Motor Protection

 Motor Overload Detection

The VS mini protects against motor overload with a built-in electronic
thermal overload relay.

Motor Rated Current (Electronic Thermal Reference Current,
n32)

Set the rated current value shown on the motor nameplate.

Note: Setting n32 to 0.0 A disables the motor overload protective function.

Motor Overload Protection Selection (n33, n34)

n33

Setting

0 For general-purpose motor

1 For Inverter motor

2 Electronic thermal overload protection not provided.

Electronic Thermal Characteristics

Constant

No.

n34 Protection Constant

Name Unit Setting Range Initial

Selection

1 min 1 to 60 min 8 min

Setting

The electronic thermal overload function monitors the motor tempera­ture based on Inverter output current and time to protect the motor from
overheating. When the electronic thermal overload relay is enabled, an

error occurs, and the Inverter output is turned OFF to prevent
excessive overheating in the motor. When operating with one Inverter
connected to one motor, an external thermal relay is not needed. When
operating more than one motor with one Inverter, install a thermal relay
on each motor.

81

General-purpose Motors and Inverter Motors

Induction motors are classified as general-purpose motors or Inverter
motors based on their cooling capabilities. The motor overload function
operates differently for these two motor types.

Example for 200 V-Class Motors

Cooling Effect Torque Characteristics Electronic Ther-

Effective when
operated at 50/
60 Hz from com­mercial power
supply.

General-purpose Motor

Effective even
when operated
at low speed
(approx. 6 Hz)

Torque

(%)

Base Frequency 60 Hz

(V/f for 60-Hz, 220-V Input Voltage)

For low-speed operation, torque

must be limited in order to stop

motor temperature rise.

Torque

(%)

60 s
Short-term

Continuous
Rating

Operation Frequency (Hz)

60 s
Short-term

Continuous
Rating

mal Overload

An error
(motor overload
protection) oc­curs when contin­uously operated
at 50/60 Hz or
less at 100%
load.

Electronic ther­mal overload pro­tection is not
activated even for
continuous opera­tion at 50/60 Hz
or less at 100%
load.

82

Inverter Motor

Operation Frequency (Hz)

Base Frequency 60 Hz

(V/f for 60-Hz, 220-V Input Voltage)

Use an Inverter motor for continu-

ous operation at low speed.

6. Programming Features

 Selecting Cooling Fan Operation

In order to increase the life of the cooling fan, the fan can be set to oper­ate only when Inverter is running

n35 = 0 (Initial setting): Operates only when Inverter is running

(Continues operation for 1 minute after
Inverter is stopped.)

=1: Operates with power ON

 Using MEMOBUS (MODBUS) Communications

Serial communication is available with VS mini using programmable
controller (MEMOCON series) and MEMOBUS. In order to perform
serial communications, RS-485/422 interface card (optional) must be
installed.

Refer to MEMOBUS Instruction Manual (Manual No.: TOEZ-C736-

70.1) for details of communications.

MEMOBUS (MODBUS) Communications

MEMOBUS system is composed of a single master (PLC) and slaves (1
to 31 VS-mini units).

Communication between master and slave (serial communication) is
controlled according to the master program with the master initiating
communication and the slave responding.

The master sends a signal to one slave at a time. Each slave has a pre­registered address No., and the master specifies the number and conduct
signal communications. The slave receives the communication to carry
out designated functions and reply to the master.

MEMOCON Series

Example of RS-485
communication

VS mini J7

VS mini J7 VS mini J7

83

Communications Specifications

Interface RS-422, RS-485

Synchronization Asynchronous (Start-stop synchronization)

Communication
Parameters

Communication
Protocol

Max. Number of
Inverters that can be
Connected

Baud rate: Selected from 2400/4800/9600/19200 bps
Data length: 8 bits fixed
Parity: Selected from even/odd/none
Stop bits: 1 bit fixed

MEMOBUS (MODBUS) (RTU mode only)

31 units (When using RS-485)

 Using Constant Copy Function

 Constant Copy Function

The Digital Operator for remote operation (Model JVOP-146, Optional)
can store constants for one Inverter. A backup power supply is not nec­essary because EEPROM is used.

Note: When using a Digital Operator for remote operation, use with a remote

interface unit for remote operation (optional) and the cable for remote
operation (optional). Refer to the VS mini J7 catalog (Literature No.
KAE-S606-12) for details.

The constant copy function is possible only for the Inverters with the
same product series and power supply specifications. However, some
constants may not be copied. It is also impossible to copy constants
between VS mini and VS-606V7 Inverters.

Prohibiting reading constants from the Inverter can be set in n77. The
constant data cannot be changed when this constant is set.

If an alarm occurs when copying constants, PRGM will flash and copy­ing will continue.

Constant Copy Function Selection (n76)

Depending on the setting of n76 (Constant Copy Function Selection),
the following functions can be used.

1. Reading all the constants from the Inverter (READ) and storing
them in EEPROM in the Digital Operator

2. Copying the constants stored in the Digital Operator to the Inverter
(COPY)

84

6. Programming Features

3. Verifying that the constants in the Digital Operator and the constants
in the Inverter are the same (VERIFY)

4. Displaying the maximum applicable motor capacity and the voltage
class of the Inverter for which constants are stored in the Digital
Operator

5. Displaying the software number of the Inverter for which constants
are stored in the Digital Operator

Constant

No.

n76 Constant

Name Unit Setting Range Initial

Copy Func-

tion Selection

- rdy: READY
rEd: READ
CPy: COPY
vFy: VERIFY
vA: Inverter capacity
display
Sno: Software No. dis­play

Setting

rdy

Prohibiting Constant Read Selection (n77)

Select this function to prevent accidentally overwriting the constants
stored in EEPROM or in the Digital Operator. Reading is not possible
when this constant is set to 0.

The constant data stored in the Digital Operator are safe from accidental
overwriting.

If reading is attempted while this constant is set to 0, PrE will flash.
Press DSPL or ENTER and return to the constant No. display.

Constant

No.

n77 Constant

Name Unit Setting Range Initial

Read Selec-

tion Prohibit

1 0: READ prohibited

1: READ allowed

Setting

0

85

 READ Function

Reads out the constants in batch from the Inverter and stores them in
EEPROM inside the Digital Operator. When the read-out is executed,
the previously stored constants data in the EEPROM are cleared and
replaced with the newly entered constants.

Example: Storing Constants from Inverter in EEPROM in Operator.

Explanation Operator Display

• Enable the setting of con­stants n01 to n79.

• Set Constant Read Pro­hibited Selection (n77) to

read-enabled.

• Execute read-out (READ)
using the Constant Copy
Function Selection (n76).

*1

• Press DSPL to light
[PRGM].

• Press ENTER to display
the set value.

• Change the set value to 4
by pressing the or
key.

• Press ENTER.

• Change the constant No.
to n77 by pressing the
or key.

• Press ENTER to display
the set value.

• Change the set value to 1
by pressing the or
key.

• Press ENTER.

• Change the constant No.
by pressing the or
key.

• Press ENTER to display
the set value.

• Change the set value to
rEd by pressing the or

key.

• Press ENTER.

• Press DSPL or ENTER.

(May be a different constant No.)

(Lit)

(May be a different set value.)

(Flashes)

(Lit for one second.)

↓

(The constant No. is displayed.)

(Lit)

(Flashes)

(Lit for one second.)

↓

(The constant No. is displayed.)

(Lit)

(Lit)

(Flashes while executing the

read)
↓

(End is displayed after the read

has been completed.)

(The constant No. is displayed.)

86

6. Programming Features

Explanation Operator Display

• Set Constant Read Pro­hibited Selection (n77) to

read-disabled.

*2

• Change the constant No.
to n77 by pressing the
or key.

• Press ENTER to displa y
the set value.

• Change the set val ue to 0
by pressing the or
key.

• Press ENTER.

(Lit)

(Flashes)

(Lit for one second.)

↓

(The constant No. is displayed.)

Note: 1. When reading is enabled (n77=1), this setting is not necessary.

2. This setting is not necessary unless read-prohibition is selected.

 COPY Function

This function writes the constants stored inside the Digital Operator in
batch to the Inverter. Write-in is possible only for Inverters with the
same product series and power supply specifications.

Therefore, writing from 200 V Class to 400 V Class Inverters (or vice
versa), from V/f control mode to vector control mode Inverters (or vice
versa), or from VS mini to VS-606V7 Inverters are not possible.

The Constant Copy Function Selection (n76), Constant Read Selection
Prohibit (n77), Fault History (n78), Software Version No. (n79), and
hold output frequency are not written. vAE will appear (flashing) if the
capacities of the Inverters differ.
Press ENTER to continue writing (the COPY function).
Press STOP/RESET to stop the COPY function.
The following constants are not written if the Inverter capacities differ.

Constant No. Name Constant No. Name

n09 to n15 V/f Settings n64 Motor Rated Slip

n32 Motor Rated Current n65 Motor No-load

n46 Carrier Frequency

Selection

Current

87

Example: Writing Constants from EEPROM in Operator to Inverter

Explanation Operator Display

• Enable the settin gs for
constants n01 to n79.

• Execute write-in
(COPY) using the Con­stant Copy Function
Selection (n76).

• Press DSPL to light
[PRGM].

• Press ENTER to displa y
the set value.

• Change the set val ue to 4
by pressing the or
key.

• Press ENTER.

• Change the cons tant No.
to n76 by pressing the
or key.

• Press ENTER to displa y
the set value.

• Change the set val ue to
CPy by pressing the or

key.

• Press ENTER.

• Press DSPL or ENTER.

(May be a different constant No.)

(Lit)

(May be a different set value.)

(Flashes)

(Lit for one second.)

↓

(The constant No. is displayed.)

(Lit)

(Lit)

(Flashes while executing the

copy.)

↓

(End is displayed after the copy

has been completed.)

(The constant No. is displayed.)

A setting range check and matching check for the written constants are
executed after the constants are written from the Digital Operator to the
Inverter. If a constant error is found, the written constants are discarded
and the constants stored before writing are restored.

When a setting range error is found, the constant No. where an error
occurs is indicated by flashing.

When an inconsistency in the settings is found, (: a number)
is indicated by flashing.

88

6. Programming Features

 VERIFY Function

This function compares the constants stored in the Digital Operator with
the constant in the Inverter. Verification is possible only for the Invert­ers with same product series and power supply specifications.

When the constants stored in the Digital Operator are the same as those
in the Inverter, vFy will flash, and then End will be displayed.

Example: Comparing Constants Stored in EEPROM in Operator with
Constants in Inverter

Explanation Operator Display

• Enable the settin gs for
constants n01 to n79.

• Execute VERIFY by
Constant Copy Function
Selection (n76).

• Display the unmatched
constant No.

• Display the constant
value in the Inverter.

• Display the constant
value in the Digital
Operator.

• Continue the execution
of VERIFY.

• Press DSPL to li ght
[PRGM].

• Press ENTER to display the
set value.

• Change the set value to 4
by pressing the or
key.

• Press ENTER.

• Change the constant No. to
n76 by pressing the or

key.

• Press ENTER to display the
set value.

• Change the set value to vFy
by pressing the or
key.

• Press ENTER.

• Press ENTER.

• Press ENTER.

• Press the key.

• Press DSPL or ENTER.

(May be a different constant No.)

(Lit)

(May be a different constant No.)

(Flashes)

(Lit for one second.)

↓

(The constant No. is displayed.)

(Lit)

(Lit)

(Flashes while executing VERI-

FY)

(Flashes) (When n011 is differ-

ent.)

(Flashes)

(Flashes)

(Flashes while executing the

verification)
↓

(End is displayed when the verifi-

cation has been completed.)

(The constant No. is displayed.)

While a constant No. that is not the same is displayed or a constant
value is displayed, press STOP/RESET to interrupt the execution of the
verification. End will be displayed. Press DSPL or ENTER to return to
the constant No.

89

 Inverter Capacity Display

The voltage class and maximum applicable motor capacity for which
constants are stored in the Digital Operator are displayed.

Example: Displaying Voltage Class and Maximum Applicable Motor
Capacity for Inverter whose Constants are in EEPROM in Operator

Explanation Operator Display

• Enable the setting
for constants n01 to
n79.

• Execute Inverter
Capacity Display
(vA) using the Con­stant Copy Function
Selection (n76).

• Press DSPL to lig ht [PRGM].

• Press ENTER to display the
set value.

• Change the set valu e to 4 by
pressing the or key.

• Press ENTER.

• Change the constant No. to
n76 by pressing the or
key.

• Press ENTER to display the
set value.

• Change the set v alue to vA fy
by pressing the or key.

• Press ENTER.

• Press DSPL or ENTER.

(May be a different constant No.)

(Lit)

(May be a different constant No.)

(Flashes)

(Lit for one second.)

↓

(The constant No. is displayed.)

(Lit)

(Lit)

(Lit) (For 20P7)*

(The constant No. is displayed.)

* The following figure shows the Inverter Capacity Display

Voltage Class

b

Single-phase 200 V

Three-phase 200 V

2

4

Three-phase 400 V

No.

Max. Applicable Motor Capacity

0.1

0.2

0.4

0.7

1.5

2.2

3.0

3.7

0.1 kW

0.2 kW

0.4 kW

0.75 kW

1.5 kW

2.2 kW

3.0 kW

3.7 kW

90

6. Programming Features

 Software No. Display

The software number of the Inverter for which constants are stored in
the Digital Operator is displayed.

Example: Displaying Software No. of Inverter for which Constants are
Stored in EEPROM in Operator

Explanation Operator Display

• Enable the settin g for
constants n01 to n79.

• Execute Software No.
Display (Sno)* using
the Constant Copy
Function Selection
(n76).

• Press DSPL to light [P RGM].

• Press ENTER to di splay the
set value.

• Change the set v alue to 4 by
pressing the or key.

• Press ENTER.

• Change the constant No. to
n76 by pressing the or
key.

• Press ENTER to di splay the
set value.

• Change the set value to Sno
by pressing the or key.

• Press ENTER.

• Press DSPL or ENT ER.

(May be a different constant No.)

(Lit)

(May be a different constant No.)

(Flashes)

(Lit for one second.)

↓

(The constant No. is displayed.)

(Lit)

(Lit)

(Lit)

(Software version: VSP020011)

(The constant No. is displayed.)

* Displays the lower 3 digits of the software version.

 Display List

Operator

Display

Description Corrective Action

Lit: Constant copy function selection
enabled.

Lit: READ selected.
Flashes: READ under execution.

Lit: Writing (COPY) selected.
Flashes: Writing (COPY) under execu­tion.

Lit: VERIFY selected.
Flashes: VERIFY under execution.

Lit: Inverter capacity display selected. -

Lit: Software No. display selected. -

Lit: READ, COPY (writing), VERIFY
completed.

-

-

-

-

-

91

Operator

Display

Flashes: Attempt made to execute
READ while Constant Read Selection
Prohibit (n77) is set to 0.

Flashes: The constant could not be
read properly for READ operation. Or,
a main circuit low voltage is detected
during READ operation.

Flashes: A checksum error occurred in
the constant data stored in the Digital
Operator.

Flashes: The password for the con­nected Inverter and that for the con­stant data stored in the Digital
Operator disagree. Example: Writing
(COPY) from VS mini to VS-606V7

Flashes: No constant data stored in
the Digital Operator.

Flashes: Attempt made to execute
writing (COPY) or VERIFY between
different voltage classes or different
control modes.

Flashes: A main circuit low voltage
was detected during writing (COPY)
operation.

Lit: A checksum error occurred in the
constant data stored in the Inverter.

Flashes: Attempt made to execute
COPY or VERIFY between different
Inverters of different capacities.

Flashes: A communications error oc­curred between the Inverter and the
Digital Operator.

Description Corrective Action

Confirm the necessity to execute
READ, then set Constant Read Selec­tion Prohibit (n77) to 1 to execute
READ.

Confirm that the main circuit power
supply voltage is correct, then re-exe­cute READ.

The constants stored in the Digital Op­erator cannot be used.
Re-execute READ to store the con­stants in the Digital Operator.

Check if the Inverters are the same
product series.

Execute READ.

Check each voltage class and control
mode.

Confirm that the main circuit power
supply voltage is correct, then re-exe­cute writing (COPY).

Initialize the constants. If an error oc­curs again, replace the Inverter due to
a failure of constant memory element
(EEPROM) in the Inverter.

Press ENTER to continue the execu­tion of COPY or VERIFY. Press STOP
to interrupt the execution of COPY or
VERIFY.

Check the connection between the In­verter and Digital Operator.
If a communications error occurs dur­ing the READ operation or writing
(COPY) operation, always re-execute
the READ or COPY.

Note: While rEd, CPy, or vFy is flashing, key input on the Digital Operator is

disabled. While rEd, CPy and vFy are not flashing, pressing DSPL or
ENTER redisplays the constant No.

92

7. Maintenance and Inspection

7. Maintenance and Inspection

 Periodic Inspection

Periodically inspect the Inverter as described in the following table to
prevent accidents and to ensure high performance with high reliability.

Location to

Check

Terminals, Invert­er mounting
screws, etc.

Heatsinks Buildup of dust, dirt,

Printed circuit
boards

Power elements
and smoothing
capacitor

Cooling fan Abnormal noise or vi-

Check for Solution

Improper seating or
loose connections in
hardware.

and debris

Accumulation of con­ductive material or oil
mist

Abnormal odor or dis­coloration

bration
Cumulative operation
time exceeding
20,000 hours

Properly seat and
tighten hardware.

Blow with dry com­pressed air at a pres-

sure of 39.2 × 10

58.8 × 10
85 psi (4 to 6kg/cm

Blow with dry com­pressed air at a pres-

sure of 39.2 × 10

58.8 × 10
85 psi (4 to 6kg/cm

If dust or oil cannot be
removed, replace the
Inverter.

Replace the Inverter.

Replace the cooling
fan.

4

Pa, 57 to

4

Pa, 57 to

4

to

2

).

4

to

2

).

93

 Part Replacement

Inverter’s maintenance periods are given below. Keep them as guide­lines.

Cooling fan 2 to 3 years Replace with new part.

Smoothing capacitor 5 years Replace with new part.

Breaker relays - Determine need by in-

Fuses 10 years Replace with new part.

Aluminum capaci­tors on PCBs

Note: Usage conditions are as follows:

• Ambient temperature: Yearly average of 30°C

• Load factor: 80% max.

• Operating rate: 12 hours max. per day

Part Replacement Guidelines

Part Standard Replacement

Period

5 years Replace board. (Deter-

Replacement Method

(Determine need by in­spection.)

spection.

mine need by inspection.)

94

7. Maintenance and Inspection

 Replacement of Cooling Fan

Inverters with Width of 68 mm or 140 mm

1. Removal

1. Press the right and left catches
on the fan cover in direction 1,
and then pull them in direction
2 to remove the fan cover from
the Inverter.

2. Pull the wiring in direction 3
from the fan cover rear face,
and remove the protective tub e
and connector.

3. Open the left and right sides of
the fan cover to remove the
cooling fan from the cover.

2. Mounting

1. Mount the cooling fan on the
fan cover. The arrow mark to
indicate the airflow direction
of the cooling fan must be on
the opposite side to the cover.

2. Connect the connector and
mount the protective tube
firmly. Mount the connector
joint section on the fan cover
rear face.

3. Mount the fan cover on the
Inverter. Always mount the
right and left catches on the
fan cover on the heatsinks.

Airflow Direction

95

Inverters with Width of 108 mm

1. Removal

1. Remove the front cover, and
then remove the cooling fan
connector (CN4).

2. Press the right and left
catches on the fan cover in
direction 1, and pull the fan
cover in direction 2 to
remove it from the Inverter.
Pull out the wiring from the
cable lead-in hole at the bot­tom of the plastic case.

3. Open the right and left sides
of the fan cover to remove
the cover from the cooling
fan.

2. Mounting

1. Mount the cooling fan on
the fan cover. The arrow
mark to indicate the airflow
direction must be opposite
to the cover.

2. Mount the fan cover on the
Inverter. Always mount the
right and left catches on the
fan cover on the heatsinks.
Thread in the wiring from
the cable lead-in hole at the
bottom of the plastic case to
the inside of the Inverter.

3. Connect the wiring to the
cooling fan connector (CN4)
and mount the front cover
and the terminal cover.

Cooling

Fan Wire

Cable

Lead-in

Hole

Airflow Direction

96

8. Fault Diagnosis

8. Fault Diagnosis

 Protective and Diagnostic Functions

This section describes the alarm and fault displays, the fault conditions, and
the corrective actions to be taken if the VS mini malfunctions.

Corrective Actions of Models without Digital Operator

1. Input fault reset or cycle the power supply OFF and ON.

2. When a fault cannot be corrected:
Turn the power supply OFF and check the wiring and control logic.

Corrective Actions of Models with Digital Operator

: ON : Flashing : OFF

Alarm Displays and Meanings

Alarm Display Inverter

Digital

Operator

RUN (Green)

ALARM (Red)

Flashing

Flashing

Flashing

Status

Detected as
an alarm only.
Fault contact
output is not
activated.

Description Causes and

UV (Main circuit low
voltage)

Main circuit DC voltage
dropped below the low­voltage detection level
while the Inverter output
is OFF.
200 V: Main circuit DC

voltage drops be­low approx. 200
V (160 V for sin­gle-phase)

400 V: Main circuit DC

voltage dropped
below approx.
400 V.

OV (Main circuit ov­ervoltage)

Main circuit DC voltage
exceeded the overvolt­age detection level whi le
the Inverter output is OFF.
Detection level
200 V Class:
approx. 410 V or more
400 V Class:
approx. 820 V or more

OH (Heatsink over­heat)

Intake air temperature in­creased while the Inver ter
output is OFF.

Corrective Actions

Check the following:

• Power supply voltage

• Main circuit power

• Terminal screws:

Check the power supply
voltage.

Check the intake air tem­perature.

supply connection.

Loose?

97

Alarm Display Inverter

Digital

Operator

RUN (Green)

ALARM (Red)

Flashing

Flashing

Flashing

Flashing

Status

Detected as
an alarm only.
Fault contact
output is not
activated.

Description Causes and

CAL (MEMOBUS
communications
waiting)

Correct data has not been
received from the PLC
when the constants n02
(RUN Command Selec­tion) is 2 or n03 (Frequen­cy Reference Selection)
is 6, and power is turned
ON.

OP (Constant set­ting error when con­stants are set
through MEMOBUS
communications)

OP1: Two or more val-

ues are set for
multi-function in­put selection.
(constants n36 to
n39)

OP2: Relationship

among V/f con­stants is not cor­rect. (constants
n09, n11, n12,
n14)

OP3: Setting value of

motor rated cur­rent exceeds
120% of Inverter
Rated Current.
(constant n32)

OP4: Upper/lower limit

of frequency refer­ence is reversed.
(constants n30,
n31)

OP5: Setting values of

jump frequencies
1 and 2 are not ap­propriate.
(constants n49,
n50)

OL3 (Overtorque de­tection)

Motor current exceed ed
the preset value in con­stant n60.

SER (Sequence er­ror)

Inverter received LOCAL/
REMOTE command or
communications/con trol
circuit terminal changing
signals from the multi­function terminal while the
Inverter output is ON.

Corrective Actions

Check communications
devices and transmission
signals.

Check the setting values.

Reduce the load, an d in­crease the acceleratio n/
deceleration time.

Check the external circ uit
(sequence).

98

8. Fault Diagnosis

Alarm Display Inverter

Digital

Operator

RUN (Green)

ALARM (Red)

Flashing

Flashing

or

Flashing

Flashing

Flashing

Status

Detected as
an alarm only.
Fault contact
output is not
activated.

Description Causes and

BB (External base­block)

BASEBLOCK command
at multi-function terminal
is ON and the Inverter
output is OFF (motor
coasting). Conditi on is
cleared when input com­mand is removed.

EF (Simultaneous
FWD/REV RUN
commands)

When FWD and REV
RUN commands are si­multaneously input for
over 500 ms, the Inverter
stops according to con­stant n04.

STP (Operator func­tion stop)

was pressed dur-

ing running via a control
circuit terminal FWD/REV
command, or by a RUN
command from communi­cations. The Inverter
stops according to con­stant n04.

STP (Emergency
stop)

Inverter received emer­gency stop alarm signal.
Inverter stops according
to constant n04.

FAN (Cooling fan
fault)

Cooling fan is locked.

CE (MEMOBUS
communications
fault)

Corrective Actions

Check the external circ uit
(sequence).

Check the external circ uit
(sequence).

Open FWD/REV com­mand of control circuit ter­minals.

Check the external circ uit
(sequence).

Check the following:

• Cooling fan

• Cooling fan connec-

Check the communication
devices or signals.

tion

99