YASKAWA VS MINI J7 series, VS mini CIMR-J7AC20P4, VS mini CIMR-J7AC20P1, VS mini CIMR-J7AC20P2, VS mini CIMR-J7AC20P7 Instruction Manual

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 for future reference.

YASKAWA

MANUAL NO. TOE-S606-12G

PREFACE

YASKAWA’s VS mini J7 (hereinafter, called VS mini).
is a small and simple inverter; as easy as using a
contactor. This instruction manual describes
installation, maintenance and 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 the protective cover or
shields removed, in order to describe detail with more clarity. Make
sure all covers and shields are replaced before operating this product.

• This manual may be modified when necessary because of improvement
of the product, modification, or changes in specifications.
Such modifications are denoted by a revised manual No.

• To order a copy of this manual, 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 your guarantee.

2

NOTES FOR SAFE OPERATION

NOTE

CAUTION

WARNING

CAUTION

Read this instruction manual thoroughly before installation, operation,
maintenance or inspection of the VS mini. In this manual, NOTES FOR
SAFE OPERATION are classified as “WARNING” or “CAUTION.”

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

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

Even items described in may result in a vital accident in some
situations. In either case, follow these important notes.

: These are steps to be taken to insure proper operation.

3

WARNINGS FOR UL/cUL MARKING

CAUTION

Use 75°C copper wires or equivalent.
Low voltage wires shall be wired with Class I Wiring.

• 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 turnd OFF. To prevent electric shock, disconnect all power before
servicing the Inverter. Then wait at least one minute after the power
supply is disconnected and all indecators are OFF.

• Do not perform a withstand voltage test on any part of the Inverter. This

electronic equipment uses semiconductors and is 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 control 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, 250volts maximum (200V class
units) or 18,000 RMS symmetrical amperes, 480volts maximum (400V
class units).

WARNINGS 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

4

RECEIVING

CAUTION

• Do not install or operate any inverter which is damaged or
has missing parts.

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

MOUNTING

CAUTION

• Lift the cabinet by the heatsink. When moving the
unit, never lift by the plastic case or the terminal covers.

Otherwise, the main unit may be dropped causing damage
to the unit.

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

Failure to observe this caution can result in a fire.

• When mounting units in an enclosure, install a fan or
other cooling device (open chasis to keep the intake air
temperature below 50: (122<).

Overheating may cause a fire or damage to the unit.

• The VS mini generates heat. For effective cooling,
mount it vertically.
Refer to the figure in “Mounting Dimensions” on page 18.

(Ref. page)

15

(Ref. page)

17

17

18

5

WIRING

WARNING

(Ref. page)

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

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

• Wiring should be performed only by qualified personnel.

Failure to observe this warning can 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 can result in personal injury.

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

Failure to observe this warning can result in an electric shock
or a fire. 24

• Make sure to ground the ground terminal according to the
local grounding code.

Failure to observe this warning can result in an electric shock
or a fire. 24

20

20

20

6

CAUTION

• Verify that the inverter rated voltage coincides with the

AC power supply voltage.

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

• Do not perform a withstand voltage test of the inverter.

It may cause semi-conductor elements to be damaged.

• Make sure to tighten terminal screws of the main circuit

and the control circuit.

Failure to observe this caution can result in a malfunction,
damage or

• Never connect the AC main circuit power supply to

output terminals U/T1, V/T2, and W/T3.

The inverter will be damaged and invalidate the guarantee.

• Do not connect or disconnect wires or connectors

while power is applied to the circuit.

Failure to observe this caution can result in personal injury.

• Do not change signals during operation.

The machine or the inverter may be damaged.

a fire.

(Ref. page)

20

20

7

OPERATION

WARNING

• Only turn ON the input power supply after replacing
the front cover.
Do not remove the covers while current is flowing.

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

• Never operate the digital operator or dip the switches
when your hand is wet.

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

• Never touch the terminals while current is flowing, even
during inverter stopping.

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

• When the fault retry function is selected, stand clear of
the inverter or the load, since it may restart suddenly
after being stopped.

(Construct machine system, so as to assure safety for personnel,
even if the inverter should restart.)
warning can result in personal injury.

• When continuous operation after power recovery is
selected, stand clear of the inverter or the load, since
it may restart suddenly after being stopped.

(Construct machine system, so as to assure safety for personnel,
even if the inverter should restart.)
warning can result in personal injury.

• Since the digital operator stop button can be disabled
by a function setting, install a separate emergency
stop switch.

Failure to observe this warning can result in personal injury.

• If an alarm is reset with the operation signal ON, the inverter
restarts automatically. Only reset the alarm after verifying
that the operation signal is OFF.

Failure to observe this warning can result in personal injury.

Failure to observe this

Failure to observe this

(Ref. page)

53

48

26

8

CAUTION

(Ref. page)

• Never touch the heatsink since the temperature is very high.

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

• Since it is easy to change operation speed from low to

high speed, verify the safe working range of the motor
and machine before operation.

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

• Install a holding brake separately if necessary.

Failure to observe this caution can result in personal 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 change signals during operation.

The machine or the inverter may be damaged.

• All the constants of the inverter have been preset

at the factory. Do not change the settings unnecessarily.

The inverter may be damaged.

27

MAINTENANCE AND INSPECTION

WARNING

• Never touch high-voltage terminals in the inverter.

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

•

Disconnect all power before performing maintenance or inspection.
Then wait at least one minute after the power supply is disconnected
and all LEDs and CHARGE LED are extinguished.

The capacitors are still charged and can be dangerous.

9

WARNING

(Ref. page)

• Do not perform withstand voltage test on any part

of the VS mini.

This electronic equipment uses semiconductors and is
vulnerable to high voltage.

• Only authorized personnel should be permitted to perform

maintenance, inspections or parts replacement.

[Remove all metal objects (watches, bracelets, etc.)
before operation.]
(Use tools which are insulated against electric shock.)
Failure to observe this warning can result in an electric shock.

CAUTION

(Ref. page)

• The control PC board employs CMOS ICs.

Do not touch the CMOS elements.

They are easily damaged by static electricity.

• Do not connect or disconnect wires, cooling fan or connentors

while power is applied to the circuit.

Failure to observe this caution can result in personal injury.

Others

WARNING

• Never modify the product.

Failure to observe this warning can result in an electric shock or personal
injury and will invalidate the guarantee.

84

84

10

11

WARNING DISPLAY

A warning label is displayed on the front cover of the inverter, as shown
below. Follow these instructions when handling the inverter.

Example of 200V class, 3-phase, 1.5 kW inverter

Warning Display (Back of this manual)

Warning Display

ź

English

Żų

ź

French

Żų

ź

Japanese

Żų

WARNING

– Risk of electric shock.

Read manual before installing.
Wait 1 minute for capacitor discharge after
disconnecting power supply.
To conform to requirements, make sure
to ground the supply neutral for 400V class.

•

•

•

үųᨖų

Ყ

ƚƕȷᩓƷƓƦǕƕƋǓLJƢŵų

Ƒ˄ƚŴᢃ᠃ƷЭƴƸ࣏ƣӕৢᛟଢ୿ǛƓᛠLjɦƞƍŵų
ᡫᩓɶӏƼᩓเᢚૺࢸᲫЎˌϋƸȕȭȳȈǫȐȸǛų
ٳƞƳƍưɦƞƍŵų
ᲮᲪᲪ᳐ኢǤȳȐȸǿƷئӳƸŴᩓเƷɶࣱໜƕעƞǕƯų
ƍǔƜƱǛᄩᛐƠƯɦƞƍŵᲢųųݣࣖᲣų

•

•

•

WARNING

– Risk of electric shock.

Read manual before installing.
Wait 1 minute for capacitor discharge after
disconnecting power supply.
To conform to requirements, make sure
to ground the supply neutral for 400V class.

•

•

•

AVERTISSEMENT

–

Risque de décharge

électrique.
Lire le manuel avant I’installation.
Attendre 1 minute après la coupure de I’alimentation,
pour permettre la décharge des condensateurs.
Pour répondre aux exigences , s’assurer que le
neutre soit reli

é à la terre, pour la série

400V.

•

•

•

䡲

Japanese/French Warning Display

An English warning display is on
the front panel of the inverter.
If you need Japanese or French
warning display, use the stickers at
the back of this manual. Place it
over the English warning display.

NAME­PLATE

PLASTIC CASE

QUALIFICATION
MARK

STATUS
INDICATOR
LAMP

WARNING
DISPLAY

CONTENTS

NOTES FOR SAFE OPERATION••••••••••••••••••••••••••••••3

1. RECEIVING•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••15

 Checking the Name Plate ••••••••••••••••••••••••••••••••••••••••••••••15

2. IDENTIFYING THE PARTS••••••••••••••••••••••••••••••••••16

3. MOUNTING•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••17

 Choosing a Location to Mount the Inverter•••••••••••••••••••••••••17
 Mounting Dimensions••••••••••••••••••••••••••••••••••••••••••••••••••••18
 Mounting/Removing Components ••••••••••••••••••••••••••••••••••••19

4. WIRING••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••20

 Wiring Instructions••••••••••••••••••••••••••••••••••••••••••••••••••••••••20
 Wire and Terminal Screw Sizes•••••••••••••••••••••••••••••••••••••••21
 Wiring the Main Circuit ••••••••••••••••••••••••••••••••••••••••••••••••••24
 Wiring the Control Circuit •••••••••••••••••••••••••••••••••••••••••••••••25
 Wiring Inspection••••••••••••••••••••••••••••••••••••••••••••••••••••••••••26

5. OPERATING THE INVERTER ••••••••••••••••••••••••••••27

 Test Run ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••27
 Operating the Digital Operator ••••••••••••••••••••••••••••••••••••••••29
 LED Description•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••31
 Simple Data Setting ••••••••••••••••••••••••••••••••••••••••••••••••••••••35

6. PROGRAMMING FEATURES•••••••••••••••••••••••••••••36

 Constant Set-up and Initialization ••••••••••••••••••••••••••••••••••••36
 Selecting V/f pattern •••••••••••••••••••••••••••••••••••••••••••••••••••••37
 Switching LOCAL/REMOTE Modes••••••••••••••••••••••••••••••••••40
 Selecting Run/Stop Commands••••••••••••••••••••••••••••••••••••••••41
 Selecting Frequency Reference•••••••••••••••••••••••••••••••••••••••42
 Setting Operation Conditions ••••••••••••••••••••••••••••••••••••••••••43

Reverse run prohibit •••••••••••••••••••••••••••••••••••••••••••••••••••••43
Multi-step speed selection••••••••••••••••••••••••••••••••••••••••••••••43
Operating at low speed••••••••••••••••••••••••••••••••••••••••••••••••••44
Adjusting speed setting signal•••••••••••••••••••••••••••••••••••••••••45
Adjusting frequency upper and lower limits ••••••••••••••••••••••••47
Using two accel/decel times •••••••••••••••••••••••••••••••••••••••••••47

12

Automatic restart after momentary power loss ••••••••••••••••••••48
Soft-start characteristics ••••••••••••••••••••••••••••••••••••••••••••••••49
Torque detection ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••50
Frequency detection •••••••••••••••••••••••••••••••••••••••••••••••••••••52
Jump frequencies•••••••••••••••••••••••••••••••••••••••••••••••••••••••••53
Continuing operation by automatic fault reset •••••••••••••••••••••53
Operating coasting motor without trip •••••••••••••••••••••••••••••••54
Holding accel/decel temporarily•••••••••••••••••••••••••••••••••••••••55
Using frequency meter or ammeter ••••••••••••••••••••••••••••••••••56
Calibrating frequency meter or ammeter •••••••••••••••••••••••••••56
Reducing motor noise or leakage current ••••••••••••••••••••••••••57
Operator stop key selection ••••••••••••••••••••••••••••••••••••••••••••59

 Selecting Stopping Method•••••••••••••••••••••••••••••••••••••••••••••60

Selecting stopping method •••••••••••••••••••••••••••••••••••••••••••••60
Applying DC injection braking •••••••••••••••••••••••••••••••••••••••••61

 Building Interface Circuits with External Devices •••••••••••••••••62

Using input signals •••••••••••••••••••••••••••••••••••••••••••••••••••••••62
Using output signals •••••••••••••••••••••••••••••••••••••••••••••••••••••65

 Setting Frequency by Current Reference Input •••••••••••••••••••67
 Preventing motor from stalling (Current limit)••••••••••••••••••••••69
 Decreasing Motor Speed Fluctuation••••••••••••••••••••••••••••••••71

Slip compensation ••••••••••••••••••••••••••••••••••••••••••••••••••••••••71

 Motor Protection ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••72

Motor overload detection •••••••••••••••••••••••••••••••••••••••••••••••72

 Selecting Cooling Fan Operation ••••••••••••••••••••••••••••••••••••73

Using MEMOBUS (MODBUS) Communications (Optional)



••••••••74
MEMOBUS (MODBUS) communications ••••••••••••••••••••••••••74
Communication specifications•••••••••••••••••••••••••••••••••••••••••74

 Using Constant Copy Function••••••••••••••••••••••••••••••••••••••••75

Constant Copy function •••••••••••••••••••••••••••••••••••••••••••••••••75
READ function•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••77
COPY function•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••78
VERIFY function ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••80
Inverter capacity display ••••••••••••••••••••••••••••••••••••••••••••••••81
Software No. display •••••••••••••••••••••••••••••••••••••••••••••••••••••82

13

7. MAINTENANCE AND INSPECTION ••••••••••••••••••84

 Periodical Inspection ••••••••••••••••••••••••••••••••••••••••••••••••••••84
 Part Replacement ••••••••••••••••••••••••••••••••••••••••••••••••••••••••84

8. FAULT DIAGNOSIS •••••••••••••••••••••••••••••••••••••••••••••87

 Protective and Diagnostic Function ••••••••••••••••••••••••••••••••••87
 Troubleshooting •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••95

9. SPECIFICATIONS •••••••••••••••••••••••••••••••••••••••••••••••••98

 Standard Specifications (200V Class)•••••••••••••••••••••••••••••••98
 Standard Specifications (400V Class) •••••••••••••••••••••••••••••101
 Standard Wiring •••••••••••••••••••••••••••••••••••••••••••••••••••••••••104
 Sequence Input Connection with NPN/PNP Transistor •••••••106
 Dimensions/Heat Loss•••••••••••••••••••••••••••••••••••••••••••••••••109
 Recommended Peripheral Devices ••••••••••••••••••••••••••••••••111
 Constants List••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••113

14

1. RECEIVING

C I M R — J 7 A C 2 0 P 1

Inverter

VS mini J7 Series

MODEL

No.
A
B
C

Type
Digital operator provided (with potentiometer)
Digital operator not provided
Digital operator provided (without potentiometer)

0P1
0P2
0P4
0P7
1P5
2P2
3P0
4P0

Applicable maximum motor output

No.

No.
B
2
4

Voltage Class
Single-phase 200VAC
Three-phase 200VAC
Three-phase 400VAC

No.CSpecifications

European standards

Note: Contact your YASKAWA representatives
for the type without heatsink.

2 0 P 1 0

SPEC

B
2
4

Single-phase 200VAC
Three-phase 200VAC
Three-phase 400VAC

No. Protective structure

Open chassis
(IP20)

0

INVERTER MODEL

MASS

INPUT SPEC.

OUTPUT SPEC.

LOT NO.

SERIAL NO.

SOFTWARE NO.

0.1kW

0.25kW

0.55kW

1.1kW

1.5kW

2.2kW
–

4.0kW

200V class

–

0.37kW

0.55kW

1.1kW

1.5kW

2.2kW

3.0kW

4.0kW

400V class

0P1
0P2
0P4
0P7
1P5
2P2
3P0
4P0

Applicable maximum motor output

No.

0.1kW

0.25kW

0.55kW

1.1kW

1.5kW

2.2kW
–

4.0kW

200V class

–

0.37kW

0.55kW

1.1kW

1.5kW

2.2kW

3.0kW

4.0kW

400V class

After unpacking the VS mini, check the following :

▫ Verify that the part numbers match your purchase order or packing slip.
▫ Check the unit for physical damage that may have occurred during

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

 Checking the Name Plate

shipping.

Example of 3-phase, 200VAC, 0.1kW (0.13HP)

15

2. IDENTIFYING THE PARTS

FREF

DSPL

RUN

RUN

MIN MAX

DATA

ENTER

<>

FOUT IOUT MNTR

F/R LO/RE PRGM

STOP

RESET

ALARM

FREF

DSPL

RUN

RUN

DATA
ENTER

<>

FOUT IOUT MNTR

F/R LO/RE PRGM

STOP

RESET

ALARM

RUN ALARM

Digital operator (with potentiometer)
Used for setting or changing constants.
Frequency can be set using potentiometer.

Digital operator (without potentiometer)
Used for setting or changing constants.

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

Opening the covers

CIMR-J7**21P5, 22P2, 24P0

B0P7, B1P5
40P2, 40P4, 40P7, 41P5
42P2, 43P0, 44P0

16

CIMR-J7

20P1, 20P2, 20P4, 20P7,

**

B0P1, B0P2, B0P4

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 ambient temperature range :

-10 to +50ºC (14 to 122ºF)

▫ Rain, moisture

▫ Oil sprays, 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, vibration.

▫ Magnetic noise. (Example : welding machines, power devices, etc.)

▫ High humidity.

▫ Radioactive substances.

▫ Combustibles : thinner, solvents, etc.

17

30mm
(1.18 in.)
OR MORE

30mm
(1.18 in.)
OR MORE

100mm (3.94 in.)

OR MORE

100mm (3.94 in.)

OR MORE

 Mounting Dimensions

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

18

 Mounting / Removing Components

Removing and Mounting Digital Operator and Covers

• Removing front cover

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

• Mounting 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 option cover

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

• Mounting option cover

Mount the terminal cover in the
descending order of the above
procedure for removal.

• Removing upper/bottom covers

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

• Mounting upper/bottom covers

Mount the front cover in the
descending order of the above
procedure for removal.

19

4. WIRING

200V 3-phase Input
Power Supply
Specification Product
CIMR-J7??2???

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

Connect to R/L1, S/L2

200V Single Input Power Supply Specification
Product
CIMR-J7??B???

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

400V 3-phase Input
Power Supply Specification
Product
CIMR-J7??4???

 Wiring Instructions

(1) Always connect the power input terminals R/L1, S/L2, and T/L3 (R/L1,

S/L2 for single-phase) and power supply via a molded-case circuit
braker (MCCB) or a fuse. Never connect them to terminals
U/T1,V/T2,W/T3, –, +1 or +2.

Refer to page 108 for recommended peripheral devices. For single­phase inverters, always use terminals R/L1 and S/L2. Never connect to
terminal 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 (n46)” on page 57.

(4) Control wiring must be less than 50m (164ft) in length and separate from

the power wiring. Use twisted-pair shielded wire 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 400V class inverters, make sure to ground the supply neutral to con-

form 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.
(9) A closed-loop connector should be used when wiring to the main circuit

terminal.
(10) Voltage drop should be considered when determining wire size.

Voltage drop can be calculated using the following equation:

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

rated voltage.

20

Inverter Power Supply Connection Terminals

Phase-to phase voltage drop (V)
= √3 × wire resistance (Ω/km) × wiring distance (m) × current (A) × 10

-3

 Wire and Terminal Screw Sizes

Applicable size

Recommended size

Model

Terminal

Symbol

Screw

2. Main Circuit

R/L1,S/L2,T/L3,
–,+1,+2,
U/T1,V/T2,W/T3

0.8 to 1.0

(7.1 to 8.88)

0.8 to 1.0

(7.1 to 8.88)

0.8 to 1.0

(7.1 to 8.88)

0.8 to 1.0

(7.1 to 8.88)

1.2 to 1.5

(10.7 to 13.3)

0.75 to 2

0.75 to 2

0.75 to 2

0.75 to 2

2 to 5.5

18 to 14

18 to 14

18 to 14

18 to 14

14 to 10

2

2

2

2

14

14

14

14

600V
vinyl-

sheathed

wire or

equivalent

200V Class 3-phase Input Series

Note : The wire size is set for copper wires at 75°C (160°F).

Tightening

Torque

N

•

m (Ib

•

in

)

mm

2

Wire

AWG

mm

2

AWG

Type

5.5

10

CIMR­J7AC
20P1

R/L1,S/L2,T/L3,
–,+1,+2,
U/T1,V/T2,W/T3

CIMR­J7AC
20P2

R/L1,S/L2,T/L3,
–,+1,+2,
U/T1,V/T2,W/T3

CIMR­J7AC
20P4

R/L1,S/L2,T/L3,
–,+1,+2,
U/T1,V/T2,W/T3

CIMR­J7AC
20P7

R/L1,S/L2,T/L3,
–,+1,+2,
U/T1,V/T2,W/T3

CIMR­J7AC
24P0

M3.5

M3.5

M3.5

M3.5

M4

0.8 to 1.0

(7.1 to 8.88)

2 to 5.5 14 to 10

3.5

14

R/L1,S/L2,T/L3,
–,+1,+2,
U/T1,V/T2,W/T3

CIMR­J7AC
22P2

M3.5

0.8 to 1.0

(7.1 to 8.88)

2 to 5.5 14 to 10

2

14

R/L1,S/L2,T/L3,
–,+1,+2,
U/T1,V/T2,W/T3

CIMR­J7AC
21P5

M3.5

Model

Common to
all models

Terminal Symbol

MA, MB, MC

S1 to S5,SC,FS,

FR,FC,AM,AC

Screw

twisted wire
single

mm

2

mm

2

Wire

Recommended size

Applicable size

AWGAWG

0.5 to 1.25

0.5 to 1.25

twisted wire
single

0.5 to 0.75

0.5 to 1.25

20 to 16
20 to 16

20 to 18
20 to 16

Shielded

wire or

equivalent

1. Control Circuit

Tighte Torque

N • m (Ib • in)

M3

M2

Type

0.5 to 0.6

(4.44 to 5.33)

0.22 to 0.25

(1.94 to 2.21)

0.75

0.75

18

18

21

Applicable size

Recommended size

Model

Terminal

Symbol

Screw

R/L1,S/L2,T/L3,
–,+1,+2,
U/T1,V/T2,W/T3

0.8 to 1.0

(7.1 to 8.88)

0.8 to 1.0

(7.1 to 8.88)

0.8 to 1.0

(7.1 to 8.88)

0.8 to 1.0

(7.1 to 8.88)

0.75 to 2

0.75 to 2

0.75 to 2

2 to 5.5

18 to 14

18 to 14

18 to 14

14 to 10

2

2

2

14

14

14

600V
vinyl-

sheathed

wire or

equivalent

200V Class Single-phase Input Series

Tightening

Torque

N

•

m (lb

•

in

)

mm

2

Wire

AWG

mm

2

AWG

Type

CIMR­J7AC
B0P1

R/L1,S/L2,T/L3,
–,+1,+2,
U/T1,V/T2,W/T3

CIMR­J7AC
B0P2

R/L1,S/L2,T/L3,
–,+1,+2,
U/T1,V/T2,W/T3

CIMR­J7AC
B0P4

R/L1,S/L2,T/L3,
–,+1,+2,
U/T1,V/T2,W/T3

CIMR­J7AC
B0P7

M3.5

M3.5

M3.5

M3.5

0.8 to 1.0

(7.1 to 8.88)

2 to 5.5 14 to 10

5.5

10

2

14

R/L1,S/L2,T/L3,
–,+1,+2,
U/T1,V/T2,W/T3

CIMR­J7AC
B1P5

M3.5

3.5

12

2

14

Notes : 1. The wire size is set for copper wires at 75°C (160°F).

2. Three-phase input is also available for single-phase input series.

22

Applicable size

Recommended size

Model

Terminal

Symbol

Screw

R/L1,S/L2,T/L3,
–,+1,+2,
U/T1,V/T2,W/T3

0.8 to 1.0

(7.1 to 8.88)

0.8 to 1.0

(7.1 to 8.88)

0.8 to 1.0

(7.1 to 8.88)

0.8 to 1.0

(7.1 to 8.88)

1.2 to 1.5

(10.65 to 13.31)

2 to 5.5

2 to 5.5

2 to 5.5

2 to 5.5

2 to 5.5

14 to 10

14 to 10

14 to 10

14 to 10

14 to 10

2

2

2

2

14

14

14

14

600V
vinyl-

sheathed

wire or

equivalent

400V Class 3-phase Input Series

Note : The wire size is set for copper wires at 75°C (160°F).

Tightening

Torque

N

•

m (Ib

•

in

)

mm

2

Wire

AWG

mm

2

AWG

Type

2

3.51412

CIMR­J7AC
40P2

R/L1,S/L2,T/L3,
–,+1,+2,
U/T1,V/T2,W/T3

CIMR­J7AC
40P4

R/L1,S/L2,T/L3,
–,+1,+2,
U/T1,V/T2,W/T3

CIMR­J7AC
40P7

R/L1,S/L2,T/L3,
–,+1,+2,
U/T1,V/T2,W/T3

CIMR­J7AC
41P5

R/L1,S/L2,T/L3,
–,+1,+2,
U/T1,V/T2,W/T3

CIMR­J7AC
44P0

M3.5

M3.5

M3.5

M3.5

M4

1.2 to 1.5

(10.65 to 13.31)

2 to 5.5 14 to 10

2

3.5

14

12

R/L1,S/L2,T/L3,
–,+1,+2,
U/T1,V/T2,W/T3

CIMR­J7AC
43P0

M4

1.2 to 1.5

(10.65 to 13.31)

2 to 5.5 14 to 10

214

R/L1,S/L2,T/L3,
–,+1,+2,
U/T1,V/T2,W/T3

CIMR­J7AC
42P2

M4

23

L1L2L

3

 Wiring the Main Circuit

NOTE

• Main circuit input power supply

Always connect the power supply
input terminals R/L1, S/L2,

R/L1, S/L2

[
Never connect them to terminal
U/T1,V/T2,W/T3, B1, B2, –, +1, or +2.

Otherwise the inverter may be damaged.

•

Make sure to ground the ground terminal
according to the local grounding code.
Never ground the VS mini in common
with welding machines, motors, or other
electrical equipment.

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

for single-phase inverters].

For single-phase inverters, always
use terminals R/L1 and S/L2. Never
connect to terminal T/L3.

Grounding (Use ground terminal .)

line to

and T/L3

[Example of 3-phase,

200V class, 1.5kW

inverters]

•

Braking resistor connection (optional)

To connect the braking resistor, cut the
protector on terminals B1 and B2.
To protect the braking resistor from
overheating, install a thermal overload
relay between the braking resistor and
the inverter. This provides a sequence
which shuts off the power supply, by a
thermal relay trip contact.
Use this same procedure when
connecting a braking resistor unit.

• Inverter output

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

Wiring the main circuit terminals

Pass the cables through wiring hole and
connect. Be sure to mount the cover in
its original position.

GOOD GOOD POOR

24

Connect with a Phillips (plus) screwdriver.

 Wiring the Control Circuit

MC

SW7

SW8

S1 S2 S3 S4 S5 SC

NPN

FS FR FC AM AC

MA MB

PNP

5.5 mm
(0.22 in.)

0.4 mm max
(0.016 in.)

2.5 mm max
(0.098 in.)

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 and connect. Be sure to mount the
covers on its original position.

* SW7 can be changed according to sequence input signal (S1 to

S5) polarity.
0V common: NPN side (factory setting)
+24 common: PNP side
Refer to page 103 for SW7.
Refer to page 67 for SW8.

Wiring the control circuit terminals

Screwdriver blade width

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

Wire sheath strip length must be 5.5mm (0.22in.).

25

NOTE

Open the front cover and verify that the strip length is 5.5mm. (0.22in.)

 Wiring Inspection

After completing wiring, check the following :

▫ Wiring is proper.

▫ Wire clippings or screws are not left in the unit.

▫ Screws are securely tightened.

▫ Bare wire in the terminal does not contact other terminals.

If the FWD (REV) run command is given during the operation reference
selection (n02=1) from the control circuit terminal, the motor will start
automatically after the main circuit input power supply is turned ON.

26

5. OPERATING THE INVERTER

Name

Run

Command

Selection

Frequency

Reference

Selection

Constant

n02 = 0 --- Enables operator RUN, STOP/RESET

= 1 --- Enables control circuit terminal run/stop

= 2 --- Enables communications (MEMOBUS communications)

n03 = 0 --- Enables operator volume

= 1 --- Enables frequency reference 1 (constant n21)

= 2 --- Enables voltage reference (0 to 10V) of control circuit

terminal

= 3 --- Enables current reference (4 to 20mA) of control circuit

terminal

= 4 --- Enables current reference (0 to 20mA) of control circuit

terminal

= 6 --- Enables communications (MEMOBUS communications)

 Test Run

The inverter operates by setting the frequency (speed).
There are three types of operation modes for the VS mini :

1 Run command from the digital operator (potentiometer/digital setting).
2 Run command from the control circuit terminal.
3 Run command from communications (MEMOBUS communications)

Prior to shipping, the drive is set up to receive 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 35.

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

27

Operation Steps

Operator
Display

12-LED
Display

Status
Indicator
LED

RUN ALARM

RUN ALARM

RUN ALARM

Status indicator lamp

: ON

: Blinking : OFF

1. Turn the potentiometer fully to the left before
turning the power ON.

2. F/R blinks.

Select FWD/REV run using keys.

Never select REV when reverse run is
prohibited.

3. Press DSPL to blink FREF. Then press RUN.

4.

Operates the motor by turning the
potentiometer to the right. (Frequency
reference corresponds to the potentiometer

0.0

(Forward)
or

(Reverse)

0.0 to 60.0
Minimum
output
frequency is

1.5Hz

FREF

NOTE

0.0

RUN ALARM

F/R

FREF

FREF

NOTE

If the potentiometer is switched rapidly,
the motor also accelerates or decelerate
rapidly corresponding to the potentiometer
movement. Pay attention to load status
and switch the potentiometer with the
speed not to affect motor movement.

Operation Check Points

▫ Motor rotates smoothly.
▫ Motor rotates in the correct direction.
▫ Motor does not have abnormal vibration or noise.
▫ Acceleration or deceleration is smooth.
▫ Current matching the load flows.
▫ Status indicator LEDs and digital operator display are correct.

28

 Operating the Digital Operator

Press to switch
between
function LEDs.

Press to increase
constant no./data
value.

Press to decrease
constant no./data
value.

Function display LEDs (Color in parenthesis indicates the color of LED.

)

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

Press to run
the motor.

Frequency setting
potentiometer
Changes frequency
setting according to
potentiometer.

Data display section Status indicator

FREF

Frequency reference

setting/monitoring

(GREEN)

FOUT

Output frequency

monitor

(GREEN)

IOUT

Output current

monitor

(GREEN)

F/R

Operator RUN

command FWD/REV

selection
(GREEN)

PRGM

Constant no./data

(RED)

MNTR

Multi-function

monitor

(GREEN)

LO/RE

LOCAL/REMOTE

Selection

(RED)

Function display LEDs
LED switches to another
function each time
DSPL is pressed.
The displayed data can
be changed.

Press to enter the
constant data.
(Displays the constant
data when
selecting constant no.
by PRGM LED.)

FREF

NPJT31250-1

DSPL

RUN

RUN

MIN MAX

DATA
ENTER

<>

FOUT IOUT MNTR

F/R LO/RE PRGM

STOP
RESET

ALARM

All functions of the VS mini are set by the digital operator. Below are
descriptions of the display and keypad sections.

DIGITAL OPERATOR

29

Description of Status Indicator LEDs

STOP

RESET

There are two LEDs on the middle right section of the face of the VS mini.
The inverter status is indicated by various combinations of ON, BLINKING
and OFF LEDs. RUN indicator and status indicator on the button

RUN

have the same function.

: ON

RUN ALARM

(Green)

(Red)

Operation Ready

(During Stop)

RUN ALARM

Ramp to Stop

RUN ALARM RUN ALARM

: BLINKING : OFF: BLINKING (Long Blinking)

Normal Operation

For details on how the status indicator LEDs function at inverter faults, refer
to Section 8 “FAULT DIAGNOSIS AND CORRECTIVE ACTIONS” on
page 87. If a fault occurs, the ALARM LED lights.

The fault can be reset by turning ON the fault reset signal (or pressing

NOTE

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 by the fault reset signal.

30