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

...
Page 1
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
Page 2
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
Page 3

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
Page 4
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
Page 5
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
Page 6
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
Page 7
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
Page 8
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
Page 9
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
Page 10
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
Page 11
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
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.
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
Page 12

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•••••••••••••••••••••••••17Mounting Dimensions••••••••••••••••••••••••••••••••••••••••••••••••••••18Mounting/Removing Components ••••••••••••••••••••••••••••••••••••19
4. WIRING••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••20
Wiring Instructions••••••••••••••••••••••••••••••••••••••••••••••••••••••••20Wire and Terminal Screw Sizes•••••••••••••••••••••••••••••••••••••••21Wiring the Main Circuit ••••••••••••••••••••••••••••••••••••••••••••••••••24Wiring the Control Circuit •••••••••••••••••••••••••••••••••••••••••••••••25Wiring Inspection••••••••••••••••••••••••••••••••••••••••••••••••••••••••••26
5. OPERATING THE INVERTER ••••••••••••••••••••••••••••27
Test Run ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••27Operating the Digital Operator ••••••••••••••••••••••••••••••••••••••••29LED Description•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••31Simple Data Setting ••••••••••••••••••••••••••••••••••••••••••••••••••••••35
6. PROGRAMMING FEATURES•••••••••••••••••••••••••••••36
Constant Set-up and Initialization ••••••••••••••••••••••••••••••••••••36Selecting V/f pattern •••••••••••••••••••••••••••••••••••••••••••••••••••••37Switching LOCAL/REMOTE Modes••••••••••••••••••••••••••••••••••40Selecting Run/Stop Commands••••••••••••••••••••••••••••••••••••••••41Selecting Frequency Reference•••••••••••••••••••••••••••••••••••••••42Setting 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
Page 13
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 •••••••••••••••••••67Preventing motor from stalling (Current limit)••••••••••••••••••••••69Decreasing 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
Page 14
7. MAINTENANCE AND INSPECTION ••••••••••••••••••84
Periodical Inspection ••••••••••••••••••••••••••••••••••••••••••••••••••••84Part Replacement ••••••••••••••••••••••••••••••••••••••••••••••••••••••••84
8. FAULT DIAGNOSIS •••••••••••••••••••••••••••••••••••••••••••••87
Protective and Diagnostic Function ••••••••••••••••••••••••••••••••••87Troubleshooting •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••95
9. SPECIFICATIONS •••••••••••••••••••••••••••••••••••••••••••••••••98
Standard Specifications (200V Class)•••••••••••••••••••••••••••••••98Standard Specifications (400V Class) •••••••••••••••••••••••••••••101Standard Wiring •••••••••••••••••••••••••••••••••••••••••••••••••••••••••104Sequence Input Connection with NPN/PNP Transistor •••••••106Dimensions/Heat Loss•••••••••••••••••••••••••••••••••••••••••••••••••109Recommended Peripheral Devices ••••••••••••••••••••••••••••••••111Constants List••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••113
14
Page 15

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
Page 16

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
Page 17

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
Page 18
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
Page 19

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
Page 20

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
Page 21

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
Page 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)
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
Page 23
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
Page 24
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.
Page 25

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
Page 26
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
Page 27

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
Page 28
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
Page 29

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
Page 30
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
Page 31

LED Description

Power ON
FREF
FOUT
IOUT
MNTR
F/R
DSPL
DSPL
DSPL
DSPL
DSPL
Frequency reference setting/monitor (Hz) Sets VS mini operation speed.
Output frequency monitor (Hz) Displays frequency that VS mini is currently outputting. Setting disabled.
Output current monitor (A) Displays current that VS mini is currently outputting. Setting disabled.
Multi-function monitor Description of the selected monitor is displayed. (Refer to pages 32 and 33 for details.)
FWD/REV run selection Sets the motor rotation direction when run command is given by the digital operator. Setting can be changed by or key. FO (forward run) EV (reverse run)
<
<
By pressing on the digital operator, each of the function LEDs can be
selected.
The following flowchart describes each function LED.
DSPL
If the VS mini loses power while in one of these modes, it will return to this 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 No. U15: Data reception error
31
Page 32
LO/RE
PRGM
DSPL
DSPL
LOCAL / REMOTE Selection
Constant No. / data Sets and changes data using constant No. (Refer to page 34.)
FREF
Return to
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 by or key.
(Local) (Remote)
<
<
Multi-Function monitor
Press key. When is ON, data can be displayed by selecting monitor No.
[Example] Monitoring Output Voltage Reference
DSPL MNTR
MNTR
U04
ENTER
MNTR
DSPL
ENTER
or
Select U04 by pressing or key.
^
^
Output voltage reference is displayed.
MNTR
Selecting monitor
DSPL
IOUT
DSPL
F/R
200
32
Page 33
Constant No.
Name Description
U01
U02
U03
U04
U05
U06
U07
U09
U10
Frequency reference
(FREF)
Output frequency
(FOUT)
Output current
(IOUT)
Output voltage
DC voltage
Input terminal status
Output terminal status
Fault history
Software No.
Frequency reference can be monitored. (Same as FREF)
Output frequency can be monitored. (Same as FOUT)
Output current can be monitored. (Same as IOUT)
Output voltage can be monitored.
Main circuit DC voltage can be monitored.
Input terminal status of control circuit terminals can be monitored.
Output terminal status of control circuit terminals can be monitored.
Last four fault history is displayed.
Software No. can be checked.
Hz
Hz
A
V
V
---
---
---
---
U15 Data reception error
Contents of MEMOBUS communication data reception error can be checked. (contents of transmission register No. 003DH are the same)
---
Monitoring
1: Terminal S1 is “closed.”
Input terminal status
1: Terminal S2 is “closed.” 1: Terminal S3 is “closed.” 1: Terminal S4 is “closed.” 1: Terminal S5 is “closed.”
1: Terminal MA-MC is closed.
Output terminal status
Not used
Not used
Following items can be monitored by U- constants.
Input/Output terminal status
33
Page 34
34
Setting and referring constants
Following shows how to select and change constants.
LO/RE
PRGM
DSPL
DSPL
PRGM
ENTER
PRGM PRGM
ENTER
PRGM
PRGM
FREF
REMOTE/LOCAL selection
Constant No./ data
n02 Run command selection
After 1 sec
Initial setting:0 operator reference
Set to 1 Control circuit terminal reference (blinking at changing)
• Setting n02 (Run command selection)
Data setReturn to constant No. display
600
N01
LO
N02 0
N02
1
1
Clearing fault history
Set constant n01 to 6 to clear fault history. Set data returns to its initial value after completion of 6 setting. Note: Constant initialize (n01=12, 13) clears the fault history.
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 87 for details.)
Page 35
NOTE

Simple Data Setting

Operation Steps
1. Turn ON the power supply.
7. Press to stop.
STOP
Operator Display
LED Display
Status Indicator LED
2. Set constant n03 to 1.
3. Set the following constants.
4. Select forward or reverse run by pressing q or w key.
5.
Set the reference by pressing q or w
key.
6. Press .
15.0
5.0
0.0
1
60.0
0.0 to 60.0
FREF
PRGM
FOUT
PRGM
n16 : 15.0 (acceleration time) n17 : 5.0 (deceleration time)
Examine the application. (Never select REV when reverse run is prohibited.)
RUN
FOUT
FREF
F/R
60.0 to 0.0
(Forward)
(Reverse)
or
Status indicator lamp : BLINKING (Long Blinking) : BLINKING : OFF
RUN ALARM
RUN ALARM
RUN ALARM
RUN ALARM
RUN ALARM
RUN ALARM
RUN ALARM
Potentiometer setting (Refer to 5. OPERATING THE INVERTER) and digital setting are both available for simple accel/decel 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).
Following is an example in which the function LEDs are used to set frequency reference, acceleration time, deceleration time, and motor direction.
35
Page 36

6. PROGRAMMING FEATURES

Factory settings of the constants are shown as in the tables.

Constant Set-up and Initialization

Constant selection/initialization (n01)
The following table describes the data which can be set or read when n01 is set.
Unused constants among n01 to n79 are not displayed.
n01 Setting
0 n01
1
6
7
12
13
* Excluding setting disabled constants.
Refer to page 63.
NOTE
(1) The set values of input terminal function selection 2 to 5 (n36 to n39) are the same. (2) If the following conditions are not satisfied in the V/f pattern setting :
(3) If the following conditions are not satisfied in the Jump frequency setting :
(4) If Frequency reference lower limit (n31) Frequency reference upper limit (n30) (5) If motor rated current (n32) 150% of inverter rated current
Constant that can be set Constant that can be referred
n01 to n79*
Fault history cleared
Not used
Initialize
Initialize (3-wire sequence)
EMM appears on the LED display for one second and the set data returns to its initial values in the following cases :
Max. output frequency (n09) Max. voltage output frequency (n11)
For details, refer to Adjusting torque according to application (V/f pattern setting) on page 37.
Jump frequency 2 (n50) Jump frequency 1 (n49)
> Mid. output frequency (n12) Min. output frequency (n14)
n01 to n79
n01 to n79
36
Page 37

Selecting V/f pattern

Adjusting torque according to application
Adjust motor torque by using V/f pattern” and “full-range automatic torque boost”.
V/f pattern setting
Set V/f pattern by n09 to n15 as described below. Set each pattern when using a special motor (high-speed motor, etc.) or when requiring special torque adjustment of machine.
V: (VOLTAGE)
n10
n13
n15
0
n14 n12 n11 n09
Constants
No.
n09
n10
n11
n12
n13
n14
n15
Be sure to satisfy the following conditions for the setting of n09 to n15. n14 n12 < n11 n09 If n14 = n12 is set, the set value of n13
f
(FREQUENCY)
Name Unit Setting range
Max. output frequency
Max. voltage Max. voltage output
frequency (base frequency)
Mid. output frequency
Mid. output frequency voltage
Min. output frequency
Min. output frequency voltage
is disabled.
0.1Hz
1V
0.1Hz
0.1Hz
1V
0.1Hz
1V
Initial
50.0 to 400.0Hz 50.0Hz
1 to 255V
(1 to 510V)
0.2 to 400.0Hz
1 to 399Hz
1 to 255V
(1 to 510V)
0.1 to 10.0Hz 1 to 50V
(1 to 100V)
Setting
200V
(400V)
50.0Hz
1.3Hz 12V
(24V)
1.3Hz 12V
(24V)
37
Page 38
Typical setting of V/f pattern
Constant
n09 n10 n11 n12 n13 n14 n15
Setting
60.0 200
60.0
1.5 12
1.5 12
Constant Setting
50.0 200
50.0
1.3 12
1.3 12
n09 n10 n11 n12 n13 n14 n15
Constant Setting
60.0 200
60.0
30.0 50
1.5 10
n09 n10 n11 n12 n13 n14 n15
Constant Setting
50.0 200
50.0
25
50.0
1.3 10
n09 n10 n11 n12 n13 n14 n15
Constant Setting
60.0 200
60.0
3.0 24
1.5 18
n09 n10 n11 n12 n13 n14 n15
Constant Setting
50.0 200
50.0
2.5 24
1.3 18
n09 n10 n11 n12 n13 n14 n15
V
200
12
1.5 60 f
V
200
12
1.3 50 f
V
200
50
10
1.5 30 60 f
V
200
50
10
1.3 25 50 f
V
200
24 18
1.5 3 60 f
V
200
24 18
1.3 2.5 50 f
Set the V/f pattern according to the application as described below. For 400V class, the voltage values (n10, n13, and n15) should be doubled. When running at a frequency exceeding 50Hz/60Hz, change the maximum output frequency (n09).
Note: Be sure to set the maximum output frequency according to the motor characteristics.
(1) For general-purpose applications
Motor Specification : 60Hz
Motor Specification : 50Hz (Factory setting)
(2) For fans/pumps
Motor Specification : 60Hz Motor Specification : 50Hz
(3) For applications requiring high starting torque
Motor Specification : 60Hz Motor Specification : 50Hz
Increasing voltage of V/f pattern increases motor torque, but an excessive increase may cause motor overexcitation, motor overheat or vibration.
Note : n012 is to be set to motor rated voltage.
38
Page 39
Output voltage Torque compensation gain (n63)
Required torque
n11 =60Hz
n10 =200V
n09 =90Hz
BASE POINT
CONSTANT TORQUE
CONSTANT OUTPUT OR
VARIABLE OUTPUT
When operating with frequency larger than 60Hz/50Hz, change only max.
f (FREQUENCY)
Required torque Increase voltage
V
(VOLTAGE)
output frequency (n09).
Full-range automatic torque boost
Motor torque requirement changes according to load conditions. Full­range automatic torque boost adjusts voltage of V/f pattern according to the requirement. 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.
Operation
Normally, no adjustment is necessary for 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).
39
Page 40

Switching LOCAL/REMOTE Modes

The following functions can be selected by switching the LOCAL or REMOTE mode. To select RUN/STOP commands or frequency reference, change the mode in advance depending on the following applications.
LOCAL mode : Enables the digital operator for RUN/STOP
REMOTE mode
How to select LOCAL/REMOTE modes
When LOCAL/REMOTE switching function is not set for multi-function input selection
commands and FWD/REV run commands. Frequency reference can be set by volume or .
: Run by the n02 setting (run command selection).
Frequency reference can be set by n03 (frequency reference selection) setting.
When LOCAL/REMOTE switching function is set at multi-function input selection
(When 17 is not set to any of constants n36 to n39)
(When 17 is set to any of constants n36 to n39)
FREF
Select Lo for operator
selection.
LO/RE LO/RE
LOCAL mode REMOTE mode
40
Select rE for operator
selection.
Set multi-function input terminal is turned ON.
Set multi-function input terminal is turned OFF.
Page 41

Selecting Run/Stop Commands

IM
S1 S2 SC
FWD RUN/STOP REV RUN/STOP
Refer to  Switching LOCAL / REMOTE Modes (page 40) to select either the LOCAL mode or REMOTE mode. Operation method (RUN / STOP commands, FWD / REV run commands) can be selected by the following method.
LOCAL mode
When Lo (local mode) is selected for digital operator ON mode, or when LOCAL / REMOTE switching function is set and the input terminals are turned ON, run operation is enabled by the or of the digital operator, and FWD/REV run is enabled by ON mode
<
(using or key).
LO / RE
selected for multi-function input selection.
<
is not effective when local / remote switching function is
REMOTE mode
• Select remote mode. There are following two methods to select remote mode.
1. Select rE (remote mode) for selection.
LO / RE
2. When the local / remote switching function is selected for multi-
function input selection, turn OFF the input terminal to select remote mode.
• Select operation method by setting the 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 74) (When option card
is installed)
• Example for using the multi-function input terminal as operation
reference (two-wire sequence)
LO / RE
STP
F / R
RUN
For example of three-wire sequence, refer to page 63.
n02 : 1 (Initial setting : 0) n36 : 2
Operating (RUN / STOP commands) by communications
(When option card is installed)
Setting constant n02 to 2 in REMOTE mode can give RUN/STOP commands by communication (MEMOBUS communications). For details, refer to page 74.
41
Page 42

Selecting Frequency Reference

IM
FS
FREQUENCY
SETTING POWER +12V, 20mA
FR
FC(0V)
2K
MASTER SPEED FREQUENCY REFERENECE
(0 TO +10V)
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 40.
LOCAL mode
Select command method by constant n07. n07=0 :
Enables the setting by potentiometer on digital operator (initial setting). Factory setting of the model with digital operator (without potentiometer) is n07=1.
=1 : Enables the digital setting by digital operator, setting value is
stored in constant n21 (frequency reference 1).
• Digital setting by digital operator
Input frequency while FREF is lit (press ENTER after setting the numeric value). Frequency reference setting is effective when 1 is set to constant n08 instead of pressing ENTER key. n08=0 :
Enables frequency reference setting by ENTER key (initial setting).
=1 : Disable frequency reference setting by ENTER key.
REMOTE mode
Select command method by constant n03. n03=0 :
Enables frequency reference setting by potentiometer on digital operator (initial setting). Initial setting of the model with digital operator (without potentiometer) is n03=1.
=1 : Frequency reference 1 effective. (constant n21) =2 : Voltage reference (0 to 10V) (See the figure below) =3 : Current reference (4 to 20mA) (Refer to page 67) =4 : Current reference (0 to 20mA) (Refer to page 67) =6 : communication (Refer to page 74)
Example of frequency reference by voltage signal
n03 = 2 (Factory setting : 0)
42
Page 43

Setting Operation Conditions

NOTE
FWD RUN/STOP
REV RUN/STOP
MULTI-STEP SPEED REF 1
MULTI-STEP SPEED REF 2
MULTI-STEP SPEED REF 3
S1
S2
S3
S4
S5
SC

Reverse run prohibit (n05)

Reverse run disabled setting does not accept 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
0
1
By combining frequency reference and input terminal function selections, up to 16 steps of speed can be set.
8-step speed change
n02=1 (operation mode selection ) n03=1 ( n21=25.0Hz ( n22=30.0Hz ( n23=35.0Hz ( n24=40.0Hz ( n25=45.0Hz ( n26=50.0Hz ( n27=55.0Hz ( n28=60.0Hz (
Description
Reverse run enabled.
Reverse run disabled.

Multi-step speed selection

Frequency reference
Frequency reference 1)n38=7 (Multi-function contact input terminal 4) Frequency reference 2)
Frequency reference 3 Frequency reference 4 Frequency reference 5 Frequency reference 6 Frequency reference 7 Frequency reference 8
When all multi-function reference inputs are OFF, frequency reference selected by constant n03 (frequency reference selection) becomes effective.
selection )
n36=1 n37=6 (Multi-function contact input terminal 3)
n39=8 (Multi-function contact input terminal 5) ) ) ) ) )
)
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.
43
Page 44
ON
ONON ON ON
ONON
ON
TIME
(n28) 60.0 Hz
(n27) 55.0 Hz
(n26) 50.0 Hz
(n25) 45.0 Hz
(n24) 40.0 Hz
(n23) 35.0 Hz
(n22) 30.0 Hz
(n21) 25.0 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)

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.
Name
Jog frequency
Jog command
44
Constant No.
n29
n36 to n39
Factory setting : 6.0Hz
Set to “10” for any constant.
Setting
Page 45
FREQURNCY REFERNCE
0V (4mA) (0mA)
10V (20mA) (20mA)
MAX. OUTPUT FREQUENCY
GAIN
100
MAX. OUTPUT FREQUENCY
BIAS
100
MAX. FREQUENCY (100%)
0%
0V 5V 10V

Adjusting speed setting signal

To provide frequency reference by analog input of control circuit terminal FR or FC, the relationship between analog input and frequency reference can be set.
( ) indicates the value when current
reference input is selected.
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 0V (4mA or 0mA) can be set in units of 1%. (max. output frequency n09=100%)
Factory setting : 0%
*
Typical Setting
To operate the inverter with frequency reference of 50% to 100% at 0 to 5V input
Gain n41 = 200 Bia s n42 = 0
45
Page 46
To operate the inverter with frequency reference of 50% to 100% at 0 to
MAX. FREQUENCY (100%)
50%
0V 10V
10V input
Gain n41 = 100 Bia s n42 = 50
46
Page 47

Adjusting frequency upper and lower limits

INTERNAL FREQUENCY REFERENCE
FREQUENCY UPPER LIMIT (n30)
SET FREQUENCY REFERENCE
FREQUENCY LOWER LIMIT (n31)

Using two accel/decel times

FORWARD (REVERSE) RUN COMMAND
MULTI-STEP SPEED REFERENCE
ACCEL/DECEL TIME SELECTION (TERMINAL S2 TO S5)
* When deceleration to a stop is selected (n04 = 0).
By setting input terminal function selection (either of n36 to n39) to 11 (accel/decel time select), accel/decel time is selected by turning ON/OFF the accel/decel time select (terminal S2 to S5). At OFF : n16 (accel time 1)
At ON : n18 (accel time 2)
OUTPUT FREQUENCY
n17 (decel time 1)
n19 (decel time 2)
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)
Sets the lower limit of the frequency reference in units of 1%. (n09: Max. output frequency = 100%) When operating at frequency reference 0, operation is continued at the frequency reference lower limit. However, when frequency reference lower limit is set to less than the min. output frequency (n14), operation is not performed. Factory setting: 0%
ACCEL TIME 1 (n16)
DECEL TIME 1 (n17)
ACCEL TIME 2 (n18)
DECEL TIME 2* (n19)
DECEL TIME 1* (n17)
TIME
ON
ON
ON
47
Page 48
Accel time Set the time needed for output frequency to reach 100% from 0%.
Decel time Set the time needed for output frequency to reach 0% from 100%. (Maximum output frequency n09=100%)

Automatic restart after momentary power loss (n47)

When momentary power loss occurs, operation restarts automatically.
Description
Setting
Setting
Continuous operation after momentary power loss
Continuous operation after momentary power loss
0
0
not provided.
not provided. Continuous operation after power recovery within
Continuous operation after power recovery within
1*
momentary power loss ridethru time Continuous operation after power recovery (Fault
Continuous operation after power recovery (Fault
2*
2*
output not provided)
output not provided)
* Hold the operation command to continue the operation after recovery from a momentary
power loss.
When 2 is selected, operation restarts if power supply voltage reaches its normal level while
control power supply is held. No fault signal is output.
Description
48
Page 49

Soft-start characteristics (n20)

DC INJECTION BRAKING TIME AT STOP n53
MIN. OUTPUT FREQUENCY
MIN. OUTPUT FREQUENCY n14
DECELERATION
DECELERATION
ACCELERATION
FORWARD RUN COMMAND
REVERSE RUN COMMAND
OUTPUT FREQUENCY
ACCELERATION
n14
S-curve characteristics in
FREQUENCY REFERENCE
OUTPUT FREQUENCY
S-CURVE CHARACTERISTIC TIME (Tsc)
OUTPUT FREQUENCY
TIME
To prevent shock at machine start/stop, accel/decel can be performed in S­curve pattern.
Setting
0
1
2
3
Note : S-curve characteristic time is the time from accel/decel rate 0 to a regular accel/decel rate
determined by the set accel/decel time.
S-curve characteristic time
S-curve characteristic not provided
0.2 second
0.5 second
1.0 second
The following time chart shows FWD/REV run switching at deceleration to a stop.
49
Page 50

Torque detection

If an excessive load is applied to the machine, output current increase can be detected to output alarm signals to multi-function output terminals MA and MB.
To output an overtorque detection signal, set output terminal function selection n40 to overtorque detection [Setting:6 (NO contact) or 7 (NC contact)].
MOTOR CURRENT
n60
MULTI-FUNCTION OUTPUT SIGNAL (OVERTORQUE DETECTION SIGNAL) TERMINAL MA, MB
Overtorque detection release width (hysterisis) is set at approx. 5% of inverter
*
rated current.
* *
TIME
ONON
n61n61
50
Page 51
Overtorque detection function selection (n59)
Overtorque detection not provided
Detected during constant-speed running, and operation continues after detection.
Setting
0
1
2
3
4
Description
Detected during constant-speed running, and operation stops during detection.
Detected during running, and operation continues after detection.
Detected during running, and operation stops during detection.
(1) To detect overtorque at accel/decel, set to 3 or 4.
(2) To continue the operation after overtorque detection, set to 1 or 3.
During detection, the operator displays OL3 alarm (blinking).
(3) To halt the inverter by a fault at overtorque detection, set to 2 or 4. At
detection, the operator displays OL3 fault (ON).
Overtorque detection level (n60)
Sets the overtorque detection current level in units of 1%. (Inverter rated current = 100%)
Factory setting: 160%
Overtorque detection time (n61)
If the time when motor current exceeds the overtorque detection level (n60) is longer than overtorque detection time (n61), the overtorque detection function operates. Factory setting : 0.1sec.
51
Page 52

Frequency detection (n58)

Effective when either of output terminal function selection n40 is set to frequency detection (setting: 4 or 5). Frequency detection turns ON when output frequency is higher or lower than the frequency detection level (n58).
Frequency detection 1
(Output frequency Frequency detection level n58)
(Set n40 to “4.”)
FREQUENCY DETECTION LEVEL [Hz] (n58)
Frequency detection 2
OUTPUT FREQUENCY
FREQUENCY DETECTION SIGNAL
ON
RELEASE WIDTH –2Hz
(Output frequency Frequency detection level n58) (Set n40 to “5.”)
RELEASE
OUTPUT FREQUENCY
FREQUENCY DETECTION SIGNAL
WIDTH +2Hz
FREQUENCY DETECTION LEVEL (Hz) (n58)
ONON
52
Page 53

Jump frequencies (n49 to n51)

OUTPUT FREQUENCY
FREQUENCY REFERENCE
n51
n49
n50
n51
This function allows the prohibition or “jumping” of critical frequencies so that the motor can operate without resonance caused by machine systems. This function is also used for dead band control. Setting the value to 0.00Hz disables this function. Set prohibited frequency 1 or 2 as follows :
n49 n50
If this condition is not satisfied the inverter displays one second and restores the data to original settings.
EMM
Operation is prohibited within jump frequency range. However, motor operates without jumping during accel/decel.

Continuing operation by automatic fault reset (n48)

Sets the inverter to restart and reset fault detection after a fault occurs. The number of self-diagnosis and retry attempts can be set at n48 up to 10. The inverter automatically restarts after the following faults occur :
OC (overcurrent)
GF (ground fault)
OV (overvoltage)
The number of retry attempts are 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) Power supply is turned OFF
for
53
Page 54

Operating coasting motor without trip

To operate coasting motor without trip, use the speed search command or DC injection braking at start.
• 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 input terminal function selection (n36 to n39) to “14” (search command from maximum output frequency) or 15 (search command from set frequency).
Build a sequence so that 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 becomes 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 (0.5s)
ON
SPEED SEARCH OPERATION
ON
AGREED SPEED DETECTION
• DC injection braking at start (n52, n54)
Restarts a coasting motor after stopping it. Set the DC injection braking time at start in n54 in units of 0.1 second. Set 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 the baseblocking for n54 setting time.
MIN. OUTPUT FREQUENCY n14
n54 DC INJECTION BRAKING
54
TIME AT START
Page 55

Holding accel/decel temporarily

To hold acceleration or deceleration, input accel/decel hold command. The output frequency is maintained when the accel/decel hold command is input during acceleration or deceleration.
When the stop command is input during accel/decel prohibition command input, accel/decel hold is released and operation ramps to stop.
Set multi-function input terminal selection (n36 to n39) to 16 (accel/decel hold command).
Time chart at accel/decel hold command input
FWD (REV)
RUN COMMAND ACCEL/DECEL HOLD COMMAND
FREQUENCY REFERENCE
OUTPUT FREQUENCY
FREQUENCY AGREED SIGNAL
Note : When the FWD (REV) run command is input along with the accel/decel hold command,
the motor does not operate. However, when frequency reference lower limit (n31) is set greater than or equal to min. output frequency (n14), the motor operates at frequency reference lower limit (n31).
ON
ON
ONONON
ON
55
Page 56

Using frequency meter or ammeter (n44)

SettingSetting
Description
Output frequency
Output current
0
1
AM
AC
0 TO 10VDC
FREQUENCY METER
FM
OUTPUT FREQUENCY (OUTPUT CURRENT)
Analog monitor gain can be set by n45
100 %
03V
ANALOG OUTPUT
10V
FM
OUTPUT FREQUENCY (OUTPUT CURRENT)
100 %
n45=0.30
FACTORY SETTING n45=1.00
ANALOG OUTPUT
3V 10V
AM
AC
FREQUENCY METER/AMMETER (3V 1mA FULL-SCALE)

n45
FM
Selects to output either output frequency or output current to analog output terminals AM-AC for monitoring.
In initial setting, analog voltage of approx. 10V is output when output frequency (output current) is 100%.

Calibrating frequency meter or ammeter (n45)

Used to adjust analog output gain.
Set the analog output voltage at 100% of output frequency (output current). Frequency meter displays 0 to 60Hz at 0 to 3V.
n45 Setting
10V = 3V
0.30
56
·
·
·
Output frequency becomes 100% at this value.
Page 57

Reducing motor noise or leakage current (n46)

fc=CARRIER FREQUENCY
2.5kHz
1.0kHz
83.3Hz 208.3Hz
fout=OUTPUT FREQUENCY
fout=OUTPUT FREQUENCY
fout=OUTPUT FREQUENCY
fc=12 fout
fc=CARRIER FREQUENCY
2.5kHz
1.0kHz
41.6Hz 104.1Hz
fc=24 fout
fc=CARRIER FREQUENCY
2.5kHz
1.0kHz
27.7Hz 69.4Hz
fc=36 fout
n46=7
n46=8
n46=9
Set inverter output transistor switching frequency (carrier frequency).
Setting
7
8
9
1
2
3
4
Carrier Frequency
12 fout
24 fout
36 fout
2.5
5.0
7.5
10.0
(Hz)
(Hz)
(Hz)
(kHz)
(kHz)
(kHz)
(kHz)
Metallic Noise from Motor
Higher
Not
audible
Noise and Current Leakage
Smaller
Larger
Setting values 7, 8, or 9 multiplies output frequency according to output frequency value.
57
Page 58
Factory setting varies according to inverter capacity (kVA).
NOTE
Wiring Distance between
Inverter and Motor
Up to 50m Up to 100m
More than 100m
Carrier frequency
(n46 setting)
10kHz or less (n46=1,2,3,4,
7,8,9)
5kHz or less
(n46=1,2,
7,8,9)
2.5kHz or less (n46=1,
7,8,9,)
Voltage Class
(V)
Capacity
(kW)
Initial Setting
Setting
Carrier
Frequency
Maximum Continuous
Output Current
(A)
Reduced Current
(A)
200
Single-phase
3-phase
400
3-phase
0.1
0.25
0.55
1.1
1.5
2.2
4.0
0.37
0.55
1.1
1.5
2.2
3.0
4.0
4 4 4 4 3 3 3 3 3 3 3 3 3 3
10kHz 10kHz 10kHz 10kHz
7.5kHz
7.5kHz
7.5kHz
7.5kHz
7.5kHz
7.5kHz
7.5kHz
7.5kHz
7.5kHz
7.5kHz
0.8
1.6
3.0
5.0
8.0
11.0
17.5
1.2
1.8
3.4
4.8
5.5
7.2
9.2
----
7.0
10.0
16.5
1.0
1.6
3.0
4.0
4.8
6.3
8.1
(1) Reduce continuous output current when changing carrier frequency to 4
(10 kHz) for the 200V class (1.5kW or more) and 400V class inverters. Refer to the table above for the reduced current. [Operation Condition]
Input power supply voltage : 3-phase 200 to 230V (200V class) Single-phase 200 to 240V (200V class)
3-phase 380 to 460V (400V class)
Ambient temperature : -10 to +50°C (14 to 122°F)
(Protection structure: open chassis type IP20)
(2) If the wiring distance is long, reduce the inverter carrier frequency as
described below.
(3) Carrier frequency is automatically reduced to 2.5kHz when Reducing
58
carrier frequency selection at low speed (n75) is set to 1 and the following conditions are satisfied:
Output frequency  5Hz Output current  110%
Factory setting : 0 (Disabled)
Page 59

Operator stop key selection (n06)

Setting
Description
Setting
Description
0
STOP key ineffective when running either from multi-function input terminals or communications.
1
STOP key effective when running either from multi-function input terminals or communications. When STOP key is pressed, the inverter stops according to the setting of constant n04. At this time, the digital operator displays S P alarm (blinking). This stop command is held in the inverter until both forward and reverse run commands are open, or unitl run command from communications becomes zero.
Selects processing when STOP key is pressed during operation from multi­function input terminal.
59
Page 60

Selecting Stopping Method

Selecting stopping method (n04)

Selects the stopping method suitable for application.
SettingSetting
Deceleration to stop
Example when accel/decel time 1 is selected
OUTPUT FREQUENCY
FWD (REV) RUN COMMAND
Upon termination of the FWD (REV) run command, the motor decelerates at the decel rate determined by the time set to deceleration time 1 (n17) and DC injection braking is applied immediately before stop. DC injection braking is also applied when the motor decelerates by setting frequency reference lower than min. output frequency (n14) with FWD (or REV) run command ON. If the decel time is short or the load inertia is large, overvoltage (OV) fault may occur at deceleration. In this case, increase the decel time.
Description
0
Deceleration to stop
1
Coast to stop
ACCEL TIME 1 (n16)
* When frequency reference is changed during running.
DECEL
DECEL TIME 1
TIME 1
(n17)
(n17)
*
*
TIME
ON
MIN. OUTPUT FREQUENCY (FREQUENCY AT DC INJECTION BRAKING START) n14 (FACTORY SETTING: 1.5Hz)
DC INJECTION BRAKING TIME AT STOP (n53) (FACTORY SETTING: 0.5s)
60
Page 61
Coast to stop
OUTPUT FREQUENCY
ACCEL TIME 1 (n016)
DECEL TIME 1 (n17)
COAST TO STOP
TIME
FWD (REV) RUN COMMAND
ON
*
*
n14 MIN. OUTPUT FREQUENCY
n53 DC INJECTION BRAKING TIME AT STOP
Example when accel/decel time 1 is selected
* When frequency reference is changed during running.
Upon removal of the FWD (REV) run command, the motor starts coasting.

Applying DC injection braking

DC injection braking current (n52)
Sets 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 inverter output is shut OFF at the timing of DC injection braking start.
When coasting to a stop is specified in stopping method selection (n04), DC injection braking at stop does not operate.
61
Page 62

Building Interface Circuits with External Devices

Using input signals

Multi-function input terminal S2 to S5 functions can be changed when necessary by setting constants n36 to n39 respectively. The same value cannot be set to different constant settings.
Setting Name Description Ref.
* Numbers 2 to 5 is displayed in corresponding to the terminal numbers S2 to S5 respectively.
FWD/REV run command
0
(3-wire sequence selection)
2 3 4 5 6 7
8 10 11 12 13 14 15 16 17 18 19 20 21 22 34 35
Reverse run
(2-wire sequence selection)
External fault (NO contact input)
External fault (NC contact input)
Fault reset Multi-step speed reference 1 Multi-step speed reference 2 Multi-step speed reference 3
JOG command
Accel/decel time select
External baseblock (NO contact input) External baseblock
(NC contact input)
Search command from
maximum frequency
Search command from
set frequency
Accel/decel hold command
LOCAL/REMOTE selection
Communication/ control circuit
terminal selection
Emergency stop fault
(NO contact input)
Emergency stop alarm
(NO contact input)
Emergency stop fault
(NC contact input)
Emergency stop alarm
(NC contact input)
UP/DOWN command
Self-test
Setting enabled only for n37
Inverter stops by external fault
signal input.
Digital operator display is
?*.
Resets the fault. Fault reset not effective with the run signal ON.
Motor coast to a stop by this
signal input.
Digital operator display is
BB.
Speed search
reference signal
Inverter stops by emergency stop signal input according to stopping method selection (n04). When frequency coasting to a stop (n04 is set to 1) method is selected, inverter coasts to a stop according to decel time setting 2 (n19). Digital operator display is S P. (lit at fault, blinking at alarm)
Setting enabled only for
n39 (terminal S5)
Setting enabled only for
n39 (terminal S5)
63 41
-
­43 43 43 43 44 47
-
­54 54 55 40 65
-
-
-
­63
-
Initial setting
No. n36 n37
n38
n39
62
Terminal
S2 S3
S4
S5
Initial Setting
2 5
3
6
Reverse run (2-wire sequence selection) Fault reset
External fault (NO contact input)
Multi-step speed reference 1
Function
Page 63
Terminal function at 3-wire sequence selection
Run command (Run when “closed”) Stop command (Stop when “open”) FWD/REV run selection FWD run when “open” REV run when “closed”
STOP SW (NC CONTACT)
RUN SW (NO CONTACT)
S1 S2 S3 SC
( )
VS mini
Multi-function Input Terminal S4 (UP command)
Operation Status
Closed
Open
Accel
Decel
Hold
Multi-function Input Terminal S5 (DOWN command)
Open
Closed
Hold
Open
Open
Closed
Closed
When 0 is set at the terminal S3 (n37), terminal S1 becomes run command, terminal S2 becomes stop command, and terminal S3 becomes FWD/REV run command.
LOCAL/REMOTE select (setting: 17)
Select operation reference either by the digital operator or by the settings of run command selection (n02) and frequency reference selection (n03). LOCAL/REMOTE select is available only during stop.
Open : Run according to the setting of run command selection (n02) or
frequency reference selection (n03).
Closed : Run by frequency reference and run command from the digital
operator.
(Example) Set n02 = 1, n03 = 2, n07 = 0.
Open : Run by frequency reference from multi-function input
terminal FR and run command from multi-function input terminals S1 to S5.
Closed : Run by potentiometer frequency reference and run
command from the digital operator.
UP/DOWN command (setting: n39 = 034)
With the FWD (REV) run command entered, accel/decel is enabled by inputting the UP or DOWN signals to multi-function input terminals S4 and S5 without changing the frequency reference, so that operation can be performed at the desired speed. When UP/DOWN commands are specified by n39, any function set to n38 becomes disabled; terminal S4 becomes an input terminal for the UP command and terminal S5 for the DOWN command.
63
Page 64
Time Chart at UP/DOWN Command Input
Setting
Description
Setting
0
1
Output frequency is not recorded during HOLD.
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.
H
D1
D1
D1
D1UU UHH H H H HDD D
FWD RUN
UP COMMAND S4
DOWN COMMAND S5
UPPER LIMIT SPEED
LOWER LIMIT SPEED OUTPUT FREQUENCY
FREQUENCY AGREED 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
Notes :
1. When UP/DOWN command is selected, the upper limit speed is set regardless of frequency reference.
Upper limit speed = Max. output frequency (n09)
2. Lower limit value is either min. output frequency (n14) or max. 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 an UP/DOWN command.
4. If the jog command is input while running by the UP/DOWN command, the jog command has priority.
5. Multi-step speed reference 1 to 3 is not effective when UP/DOWN command is selected.
Multi-step speed reference is effective during running in hold status.
6. When “1” is set for HOLD output frequency memory selection (n62), output frequency can
be recorded during HOLD.
Frequency reference upper limit (n30)/100%
64
Page 65
Communication/multi-function input terminal selection input (setting: 18)
(This function is effective when option card is installed) Operation can be changed from communication command, or from multi­function input terminal or digital operator command. Run command from communication and frequency reference are effective when multi-function input terminal for this setting is “Closed.” Run command in LOCAL/REMOTE mode and frequency reference are effective when Open.

Using output signals (n40)

Multi-function output terminal MA, MB, P1 and P2 functions can be changed when necessary by setting constant n057.
Terminal MA and MB functions: Set to n40
Setting Name Description
0
Fault In operation
1
Agreed frequency
2
Zero speed
3
Frequency detection
4
Frequency detection
5
Overtorque detection
6
(NO contact output) Overtorque detection
7
(NC contact output) Minor fault
10 11
Base blocked
Operation mode
12
Inverter operation ready
13
Fault restart
14
In UV
15
In reverse run
16
In speed search
17
Data output from
18
communication
Closed when inverter fault occurs.
Closed when either FWD/REV command is input or voltage is output from the inverter. Closed when setting frequency agrees with inverter output frequency. Closed when inverter output frequency is less than min. output frequency.
Output frequency Frequency detection level (n58) Output frequency Frequency detection level (n58)
> =
< =
----
----
Closed when the alarm is indicated. Closed when the inverter output is shut off. Closed when “LOCAL” is selected by LOCAL/REMOTE selection. Closed when inverter fault is not detected, and operation is ready. Closed during fault retry Closed when undervoltage is detected. Closed during reverse run. Closed when inverter conducts speed search.
Operates multi-function output terminal independently from inverter operation (by MEMOBUS communication)
Ref.page
-
-
66
-
52
52
51
51
-
-
-
-
-
-
-
-
74
65
Page 66
Frequency agreed signal (setting=2)
DETECTION WIDTH
±2Hz
OUTPUT FREQUNENCY
FREQUENCY AGREED SIGNAL
ON
RELEASE WIDTH
±4Hz
No.
n40
Terminals
MA, MB
Initial Setting 1 (in operation)
Initial setting of multi-function output terminal
66
Page 67

Setting Frequency by Current Reference Input

NOTE
VI
SW8
When setting frequency by inputting current reference (4-20mA or 0-20mA) 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.
Never input voltage reference to control circuit terminal FR when DIP switch SW8 is switched to “I” side.
67
Page 68
Current reference selection
After changing DIP switch (V/I switch of SW8), PRESS on the digital operator, then set the following constants.
4-20mA....n004 = 3
0-20mA....n004 = 4
PRGM
Setting : n02 = 0, n03 = 3 or 4
Press the digital operator keys to run or stop the
IM
inverter. Switch run and stop direction by
CURRENT REFERENCE
4-20mA
OR
0-20mA
(n004=3 OR 4)
FS FR FC
setting F/R LED.
Set frequency by the analog current signal [0­100% ( max. frequency ) / 4-20mA or 0-20mA] connected to the control circuit terminal.
Setting : n02 = 1, n03 = 3 or 4
Switch run/stop and FWD/REV run with switching device connected to the control circuit
IM
FWD RUN/STOP REV RUN/STOP
CURRENT REFERENCE
4-20mA
OR
0-20mA
(n004=3 OR 4)
S1 S2 SC
FS FR FC
terminal. Multi-function input terminal S2 is set to Reverse run / stop (n36 = 2).
Set frequency by the analog current signal [0­100% ( max. frequency ) / 4-20mA or 0-20mA] 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 frequency setting signal on page 45.
68
Page 69

Preventing Motor from Stalling (Current Limit)

*
MOTOR CURRENT
n56
OUTPUT FREQUENCY
TIME
TIME
Stall prevention (current limit) level during accel (n56)
Max. voltage output frequency (n11)
=
Stall prevention (current limit) level during accel in constant output area
Output frequency
Max. voltage output frequency n11
Output frequency
Stall prevention during accel (n56)
Stall prevention limit during accel (40% of n56)
Stall prevention level during acceleration
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. During acceleration, if the output current exceeds the value set for n56, acceleration stops and frequency is maintained. When the output current goes down to the value set for n56, acceleration starts.
*Stops the acceleration to prevent the motor from
stalling.
Release width (hysteresis) of stall prevention
during accel is approx. 5% of inverter rated current.
In the constant output area [output frequency > max. voltage output frequency (n11)], following equation automatically decreases the stall prevention (current limit) level during acceleration.
69
Page 70
Stall prevention (current limit) level during running (n57)
Setting
01Provided
Not Provided
Stall prevention (current limit) during deceleration
*
MOTOR CURRENT
n57
OUTPUT FREQUENCY
TIME
TIME
100msec
SET
DECEL
TIME
TIME
Controls the deceleration time to prevent overvoltage fault.
FREQUENCY
Sets the stall prevention (current limit) level during running in units of 1% (Inverter rated current = 100%).
* Factory setting: 160%
A setting of 200% disables the stall prevention (current limit) during running. If stall prevention action current at agreed speed exceeds the value set for n57 for longer than 100msec, deceleration starts. When the output current exceeds the value set for n57, deceleration continues. When the output current goes down to the value set for n57, acceleration starts, up to the set frequency. Stall prevention accel/decel settings during operation are: currently selected acceleration time 1 (n16), deceleration time 1 (n17) and acceleration time 2 (n18) and deceleration time 2 (n19).
* reduces frequency prevent speed loss at acceleration start, output current hysterisis
is approx., 5% of inverter rated current.
Stall prevention (current limit) function during deceleration (n55)
To prevent overvoltage during deceleration, the inverter automatically lengthen the deceleration time according to the value of main circuit DC voltage.
70
Page 71

Decreasing Motor Speed Fluctuation

Compensation frequency = Motor rated slip (n64)
Output current – Motor no-load current (n65)
Slip compensation gain (n66)
Motor rated current (n32) – Motor no-load current (n65)
Constants
No.
n32
Motor rated current
Name Unit Setting range
Initial
Setting
0.1A 0 to 120% of inverter rated current
*
n67
Slip compensation time constant
0.1s
0.0 to 25.5s When 0.0s is set, delay time becomes 2.0s
2.0s
n66
Slip compensation gain
0.1
0.0 to 2.5
0.0
n65
Motor no-load current
1%
0 to 99% (100%=Motor rated current n32)
*
n64
Motor rated slip
0.1Hz 0.0 to 20Hz
*

Slip compensation

As the load becomes larger, motor speed is reduced and motor slip value is increased. The slip compensating function controls the motor speed at a constant value even if the load varies. When inverter output current is equal to the motor rated current (n32), the compensation frequency is added to the output frequency.
Constants
* Differs depending on inverter capacity.
Notes : 1. Slip compensation is not performed in the following condition:
Output frequency < min. output frequency (n14)
2. Slip compensation is not performed during regeneration.
3. Slip compensation is not performed when motor rated current (n32) is set to 0.0A.
71
Page 72

Motor Protection

Motor overload detection

The VS mini protects against motor overload with a built-in electronic thermal overload relay.
Motor rated current (electoronic thermal reference current, n32)
Set to the rated current value shown on the motor nameplate.
Note: Setting to 0.0A disables the motor overload protective function.
Motor overload protection selection (n33, n34)
n33 Setting
0
1
2
Constants
No.
n34
The electronic thermal overload function monitors motor temperature, based on inverter output current and time, to protect the motor from overheating. When electronic thermal overload relay is enabled, an OL1 error
occurs, shutting OFF the inverter output and preventing excessive overheating in the motor. When operating with one inverter connected to one motor, an external thermal relay is not needed. When operating several motors with one inverter, install a thermal relay on each motor.
Electronic Thermal Characteristics
Applied to general-purpose motor
Applied to inverter motor
Electronic thermal overload protection not provided
Name Unit Setting Range Initial Setting
Protection constant selection
1min 1 to 60min 8min
72
Page 73
General-purpose motor and inverter motor
General-purpose MotorInverter Motor
Cooling Effect Torque Characteristics
Electronic Thermal overload
Effective when operated at 50/60Hz from commercial power supply.
Effective even when operated at low speed (approx. 6Hz)
Base Frequency 60Hz
(V/f for 60Hz, 220V Input Voltage)
For low-speed operation, torque must be limited in order to stop motor temperature rise.
Base Frequency 60Hz
(V/f for 60Hz, 220V Input Voltage)
Use an inverter motor for continuous operation at low speed.
OL1” error (motor overload protection) occurs when continuously
operated at 50/60Hz or less at 100% load.
Electronic thermal overload protection not activated even when continuously operated at 50/60Hz or less at 100% load.
60 SEC SHORT-TERM
CONTINUOUS RATING
180 155 140
100
80 55 38
0
320 60 120
TORQ UE
(%)
OPERATION FREQUENCY (Hz)
180
150
100
55 38
0
660120
TORQ UE
(%)
OPERATION FREQUENCY (Hz)
60 SEC SHORT-TERM
CONTINUOUS RATING
Induction motors are classified as general-purpose motors or inverter motors, based on their cooling capabilities. Therefore, the motor overload function operates differently between these two motor types.
Example of 200V class motor

Selecting Cooling Fan Operation

In order to increase lifetime, the cooling fan can be set to operate only when inverter is running. n35 = 0 (initial setting) : Operates only when inverter is running (Continues
= 1 : Operates with power ON
operation for 1 minute after inverter is stopped.)
73
Page 74

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.

Communications specifications

MEMOCON Series
Example of RS-485 communication
VS mini J7 VS mini J7 VS mini J7
Interface Synchronization
Communication parameters
Communication protocol
Max. number of inverters that can be connected
RS-422, RS-485 Asynchronous (Start-stop synchronization)
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)
74
Page 75

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 since 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.
Constant copy function is possible only for the inverters with 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 VS­606V7 inverters. The prohibition of the reading of constants from the inverter can be set at n77. The constant data cannot be changed when this constant is set.
If any alarm occurs during constant copy, the PRGM will blink and copying will continue.
Constant copy function selection (n76)
Depending on the setting of n76 for constant copy function selection, the following functions are available:
(1) Read all the constants from the inverter (READ) and store them in
EEPROM in the digital operator.
(2) Copies the constants stored in the digital operator to the inverter (COPY).
(3) Verify that the constants in the digital operator and the constants in
the inverter are the same (VERIFY).
(4) Displays the maximum applicable motor capacity and the voltage class
of the inverter that has the constants stored in the digital operator.
(5) Displays the software number of the inverter that has the constants
stored in the digital operator.
75
Page 76
Constant No.
n76
Name Unit Setting Range Initial Setting
Constant copy
function selection
rdy: READY rEd: READ CPy: COPY vFy: VERIFY vA: Inverter capacity display Sno: Software No. display
rdy
Constant No.
n77
Name Unit Setting Range Initial Setting
Constant read
selection
prohibit
1
0
0: READ prohibited
1: READ allowed
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 protected from
accidental overwriting. When reading is performed while this constant is set to 0, PrE will blink. Press the DSPL or ENTER and return to the constant No.display.
76
Page 77
Explanation Opretor display
[Example] Store the constants read out from the inverter, in the EEPROM inside the digital operator.
Enable the setting of the constants n01 to n79.
Set contant read prohibited selection (n77) to READ enabled. ∗1
Execute read-out (READ) by constant copy Function selection (n76).
Set Constant read prohibited selection (n77) to READ disabled. ∗2
Press DSPL to light [PRGM].
Press ENTER to display the
set value.
Change the set value to 4 by pressing or key.
Press ENTER.
Change the constant No. to
n77 by pressing or key.
Press ENTER to display the set value.
Change the set value to 1 by pressing or key.
Press ENTER.
Change the constant No. by
pressing or key.
Press ENTER to display the set value.
Change the set value to rEd by pressing or key.
Press ENTER.
Press DSPL or ENTER
Change the constant No.to
n77 by pressing or key.
Press ENTER to display the set value.
Chage the set value to 0 by pressing or key.
Press ENTER.
N01
(Can be a different constant No.) 0 ( Lit ) (Can be a different set value.)
1 (Blinks)
1 (Lit for one second.)
N01 (The constant is displayd.)
N77
0 (Lit)
1 (Blinks)
1 (Lit for one second)
N77 (The constant displayed.)
N76
DY (Lit)
ED (Lit)
ED (Blinks while executing
READ)
END (End is displayed after the execution of READ is completed.) N76 (The constant is displayed.)
N77
1 (Lit)
0 (Blinks)
0 (Lit for one minute)
N77 (
the constant No. is display
ed.)
1 When READ is enabled (n77=1), this setting is not necessary.
2
The setting is not necessary unless the READ prohibition is selected.
v
v
v
v
v
v
v
v
v
v
v
v
v
v

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.
77
Page 78
Constant No. Name Constant No. Name
n09 to n15 V/ f setting
n46
Carrier frequency selection
n65
Motor no-load current
n32 Motor rated current
Explanation Operator display
Enable the settings for the constants n01 to n79.
Execute write-in (COPY) by Constant Copy Function Selection (n76).
Press DSPL to light [PRGM]
Press ENTER to display the set
value.
Change the set value to 4 by
pressing or key.
Press ENTER.
Change the constant No. to n176
by pressing or key.
Press ENTER to display the set value.
Change the set value to CPy by pressing or key.
Press ENTER.
Perss DSPL or ENTER.
N01
(Can be a different constant No.) 0 (Lit) (Can be a different set value.)
1 (Blinks)
1 (Lit for one second)
N01 (The constant No. is displayed)
N76
DY (Lit)
CPY (Lit)
CPY
(Blinks while executing CPY)
END (End is displayed when the execution of CPY is completed.) N76 (The constant No. is displayed)
[ Example ] Write the constans from EEROM inside the degital operator to the inverter
v
v
v
v
v
v
n64 Motor rated slip

COPY function

Writes the constants stored inside the digital operator in batch to the inverter. Write-in is possible only for the inverters with same product series and power supply specifications. Therefore, writing from 200 V class to 400 V class (or vice versa), from V/f control mode to vector control mode (or vice versa), and from VS mini to VS-606V7 are not possible. 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 (blinking) when the capacity of the inverters differs. Press ENTER to continue writing in (the COPY function). Press STOP/RESET to stop the COPY function. Following constants are not written if the inverter capacity is different.
78
Page 79
A setting range check and matching check for the written-in constants are executed after the constants are written from the digital operator to the inverter. If any 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 blinking. When a matching error is found, OP ? (? :a number) is indicated by
blinking.
79
Page 80
Explanation
Operator display
Enable the setting for the constans 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 light [PRGM].
Press ENTER to display the
set value.
Change the set value to 4 by Pressing or key.
Press ENTER.
Change the constant No. to
n76 by pressing or key.
Press ENTER to display the set value.
Change the set value to vFy by pressing or key.
Press ENTER.
Press ENTER.
Press ENTER.
Press key.
Press DSPL or ENTER.
N01
(Can be a different constant No.) 0 (Lit) (Can be a different constant No.)
1 (Blinks)
1 (Lit for one second)
N01 (The constant No. is displayed)
N76
DY (Lit)
VFY (Lit)
VFY (Blinks while executing
VERIFY)
N09 (Blinks) (When n09 is unmatched)
60.0 (Blinks)
50.0 (Blinks)
VFY (Blinks while executing
VERIFY)
END(End is displayed when the execution of VERIFY is completed).
N76
(The constant No. is displayed)
v
v
v
v
v
v
v

VERIFY function

Collates the constants stored in the digital operator with the constant in the inverter. As well as write-in, VERIFY is possible only for the inverters with same product series and power supply specifications . When the constants stored in the digital operator correspond to those in the inverter, vFy is displayed by blinking, then End is displayed.
[Example] Collate the constants stored in EEPROM inside the digital operator with the constants in the inverter
While an unmatched constant No. is displayed or a constant value is displayed,
pressing STOP/RESET interrupts the execution of VERIFY and End is displayed.
Pressing DSPL or ENTER returns to the constant No.
80
Page 81
Explanation
Operator display
Enable the setting for the constans n01 to n79.
Execute Inverter Capacity Display (vA) by Constant copy function selection (n76)
Press DSPL to light [PRGM].
Press ENTER to display the
set value.
Change the set value to 4 by Pressing or key.
Press ENTER.
Change the constant No. to
n76 by pressing or key.
Press ENTER to display the set value.
Change the set value to vA fy by pressing or key.
Press ENTER.
Press DSPL or ENTER.
N01
(Can be a different constant No.) 0 (Lit) (Can be a different constant No.)
1 (Blinks)
1 (Lit for one second)
N01 (The constant No. is displayed)
N76
DY (Lit)
VF1 (Lit)
20.7 (Lit) (For 20P7) N76 (The constant No. is
displayed)
*
The following shows the explanation of inverter capacity display
2 0.7
2
B
4
Three-phase 200V
Voltage class
Single-phase 200V
Three-phase 400V
v
v
v
v
v
v
200V class 400V class
Max. applicable motor capacity
0.1kW
0.37kW0.25kW
0.55kW0.55kW
1.1kW1.1kW
1.5kW1.5kW
2.2kW2.2kW
3.0kW
4.0kW4.0kW
0.1
0.2
0.4
0.7
1.5
2.2
3.0
4.0

Inverter capacity display

The voltage class and maximum applicable motor capacity (whose constants stored in the digital operetor are read out) are displayed.
[Example] Display the voltage class and maximum applicable motor capacity for the inverter whose constants stored in EEPROM inside
the digital operator
81
Page 82
Explanation
Operator display
Enable the setting for the constans n01 to n79.
Execute Software No. Display (Sno)by Constant copy function selection (n76).
Press DSPL to light [PRGM].
Press ENTER to display the
set value.
Change the set value to 4 by Pressing or key.
Press ENTER.
Change the constant No. to
n76 by pressing or key.
Press ENTER to display the set value.
Change the set value to Sno by pressing or key.
Press ENTER.
Press DSPL or ENTER.
N01
(Can be a different constant No.) 0 (Lit) (Can be a different set value.)
1 (Blinks)
1 (Lit for one second)
N01 (The constant No. is displayed)
N76
DY (Lit)
SNO (Lit)
011 (Lit)
(software version : VSP020011) N76 (The constant No. is displayed)
Displays Lower 3 digits of the software version.
[Example] Display the software No. of the inverter whose constants stored in EEPROM inside the digital operator
v
v
v
v
v
v

Software No. display

The software No. (of the inverter whose constants stored in the digital operator are read out) is displayed.
82
Page 83
Operator
display
DY
ED
CPYy
VFY
SNO
END
P E
DE
CSE
DPS
CPE
CYE
F04
Description
Corrective action
Lit : Setting for constant copy function selection enabled
Lit: READ selected Flashed: READ under execution
Lit: Writing (COPY) selected Blinks: Writing (COPY) under execution
Lit: VERIFY selected Flashed: VERIFY under execution
Lit: Inverter capacity display selected
Lit: Software No. Display selected
Lit: READ, COPY (writing), or VERIFY completed
Blinks: Attempt to execute READ while Constant Read Selection Prohibit (n77) is set to 0.
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 constans stored in the digital operator cannot be used. Re-execute READ to store the constans in the digital operator.
Check if they are the same product series.
Execute READ.
Confirm that the main circuit power supply voltage is correct, then re-execute writing (COPY). Initialize the constans. 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 the digital operator. If a communication error occurs durring READ operation or writing (COPY) operation, be sure to re-execute READ or COPY.
Check each voltage class and control mode.
Blinks: The constant could not be read properly by READ operation. Or, a main circuit low voltage is detected during RE AD operation.
Blinks: A sumcheck error occurs in the consant data stored in the digital operator.
Blinks: The password for the connected inverter and that for the constant data stored in the digital operator are disagreed. [Ex.] Writing (COPY) from VS mini to VS-606V7
Blinks: No constant data stored in the digital operator.
Blinks: Attempt to execute writing (COPY) or VERIFY between different voltage classes or different control modes.
Blinks: A main circuit low voltage is detected during writing (COPY) operation.
Lit: A sumcheck error occurs in the constant data stored in the inverter.
Blinks: Attempt to execute COPY or VERIFY between inverters of different capacities.
Blinks: A communication error occurs between the inverter and the digital operator.
Note: While rEd, CPy, or vFy is displayed by blinking, key input on the digital operator is disabled. Whi le rEd, CPy and vFy are not displayed by blinking, pressing DSPL or ENTER redisplays the constant No.
Display list
VR
NDF
VRE
FE
83
Page 84

7. MAINTENANCE AND INSPECTION

Location to Check
Terminals, unit
mounting screws,
etc.
Heatsink
Connection hardware is properly seated and securely tightened.
Properly seat and tighten hardware.
Check For Solution
44
2
Built up dust, dirt, and debris Blow with dry compressed air :
39.2 10 to 58.8 10 Pa, 57 to 85 psi (4 to 6kg / cm ) pressure
Cooling fan Abnormal noise or vibration
Cumulative operation time exceeding 20,000 hours
Replace the cooling fan.
Replace the inverter unit.Abnormal odor or
discoloration
Power elements
and smoothing
capacitor
Accumulation of conductive material or oil mist
Printed circuit
board
Blow with dry compressed air :
39.2 10
4
to 58.8 104 Pa,
57 to 85 psi (4 to 6kg / cm
2
) pressure If dust or oil cannot be removed, replace the inverter unit.
Part
Part Replacement Guidelines
Standard Replacement Period
Cooling fan
Smoothing capacitor
Breaker relays
Fuses Aluminum capacitors
on PCBs
Replacement Method
Replace with new part.
Replase with new part. (Determine need by inspection.)
Determine need by inspection.
Replace with new part.
Replase with new board. (Determine need by inspection.)
2 to 3 years
5 years
----
10 years
5 years
Note: Usage conditions are as follows:
Ambient temperature: Yearly average of 30˚C
Load factor: 80% max.
Operating rate: 12 hours max. per day

Periodical Inspection

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

Part Replacement

Inverter’s maintenance periods are noted below. Keep them as reference.
84
Page 85
Replacement of cooling fan
Inverter of W-dimension (width) 68mm (2.68 inches), 140mm
(5.51 inches)
1. Removal
(1) Press the right and left clicks
of the fan cover to direction 1, and then pull them to direction 2 to remove the fan cover from the inverter unit.
(2) Pull the wiring to direction 3 from
the fan cover rear face, and remove the protective tube 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 wind direction of the cooling fan must be in 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. Be sure to mount the right and left clicks of the fan cover on the cooling fin.
85
Page 86
Inverter of W-dimension (width) 108mm (4.25 inches)
1. Removal
(1) Remove the front cover, and
then remove the cooling fan connector (CN4).
(2) Press the right and left clicks of
the fan cover to direction 1, and pull the fan cover to direction 2 to remove it from the inverter unit. 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 wind direction must be opposite to the cover.
(2) Mount the fan cover on the
inverter. Be sure to mount the right and left clicks of the fan cover on the cooling fin. Lead 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.
86
Page 87

8. FAULT DIAGNOSIS

Protective and Diagnostic Function

This section describes the alarm and fault displays, explanations for fault conditions and corrective actions to be taken if the VS mini malfunctions.
< Corrective actions for 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.
87
Page 88
<Corrective Actions of Models with Digital Operator>
Alarm Display
Digital Operator
RUN ALARM (Green)
(Red)
Inverter Status
Explanation
Causes and Corrective Actions
Warning
Fault contacts do not change state.
200V: Main circuit DC voltage drops below approx. 200V. (160V for single­ phase) 400V: Main circuit DC voltage drops below approx. 400V.
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.
Check communication devices, and transmission signals.
OH
Blinking
CRL
Blinking
UV (Main circuit low voltage) Main circuit DC voltage drops below the low-voltage detection level while the inverter output is OFF.
OV (Main circuit overvoltage) Main circuit DC voltage exceeds the overvoltage detection level while the inverter output is OFF. Detection level : 200V class: approx. 410V or
more
400V class: approx. 820V or
more
OH (Cooling fin overheat) Intake air temperature rises while the inverter output is OFF.
Check the following :
• Power supply voltage
• Main circuit power supply wiring is connected.
• Terminal screws are securely tightened.
Check the power supply voltage.
Check the intake air temperature.
U
Blinking
O
Blinking
: ON : BLINKING : OFF
Alarm Display and Contents
88
Page 89
Alarm Display
Digital Operator
RUN ALARM (Green)
(Red)
Inverter Status
Explanation
Causes and Corrective Actions
Warning
Fault contacts do not change state.
OL3
Blinking
OP?
Blinking
OP? (Constant setting error when the constant setting is performed through the MEMOBUS communications) OP1: Two or more values 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) OP9: Carrier frequency setting is incorrect. (constant n46)
Check the setting values.
OL 3 (Overtorque detection) Motor current exceeded the preset value in constant n60.
Reduce the load, and expand the accel / decel time.
SER (Sequence error) Inverter receives LOCAL / REMOTE select command or communication / control circuit terminal changing signals from the multi­function terminal while the inverter is outputting.
Check the external circuit (sequence).
SE
Blinking
89
Page 90
Alarm Display
Digital Operator
RUN ALARM (Green)
(Red)
Inverter Status
Explanation
Causes and Corrective Actions
Warning
Fault contacts do not change state.
EF
Blinking
BB
Blinking
S P
Blinking
EF (Simultaneous FWD/ REV run commands) When FWD and REV run commands are simultaneously input for over 500ms, the inverter stops according to constant n04.
BB (External baseblock) Baseblock command at multi-function terminal is active, the inverter output is shut OFF (motor coasting). Temporary condition is cleared when input command is removed.
STP (Operator function stop)
STOP
RESET
is pressed
during running by the control circuit terminals FWD / REV command, or by the run command from communications. The inverter stops according to constant n04. STP(Emergency stop) Inverter receives emergency stop alarm signal. Inverter stops according to constant n04.
or
Check the external circuit (sequence).
Check the external circuit (sequence).
Check the external circuit (sequence).
Open FWD/REV command of control circuit terminals .
FAN(Cooling fan fault) Cooling fan is locked.
Check the following:
Cooling fan
Cooling fan wiring is not connected.
CE (MEMOBUS comunications fault)
Check the comunication devices or signals.
FRN
Blinking
CE
Blinking
90
Page 91
Fault Display and Contents
Fault Display
Digital Operator
RUN ALARM (Green)
(Red)
Inverter Status
Explanation
Causes and Corrective Actions
OC
OV
UV1
Protective Operation
OC (Overcurrent) Inverter output current momentarily exceeds approx. 200% of rated current.
(Control power supply fault) Voltage fault of control power supply is detected.
GF (Ground fault) Ground fault current at the inverter output exceeded inverter rated current.
Output is shut OFF and motor coasts to a stop.
Short circuit or grounding at inverter output side
Excessive load GD
2
Extremely rapid accel/ decel time (constants n16 to n19)
Special motor used
Starting motor during
coasting
Motor of a capacity greater than the inverter rating has been started.
Magnetic contactor open/closed at the inverter output side
Cycle power. If the fault remains, replace the inverter.
OV (Main circuit over­voltage) Main circuit DC voltage exceeds the overvoltage detection level because of excessive regenerative energy from the motor.
Insufficient decel time (constants n17 and n19)
Lowering of minus load (elevator, etc.)
Increase decel time.
Detection level: 200V: Stops at main circuit DC voltage below approx. 410V. 400V: Stops at main circuit DC voltage
approx. 820V or more.
UV1 (Main circuit low voltage) Main circuit DC voltage drops below the low­voltage detection level while the inverter output is ON.
Reduction of input power supply voltage
Open phase of input supply
Occurrence of momen-
tary power loss
Check the following :
Power supply voltage
Main circuit power
supply wiring is connected.
Terminal screws are securely tightened.
200V: Stops at main circuit DC voltage below approx. 200V.(160V for single-phase) 400V: Stops at main circuit DC voltage
approx. 400V or more.
Check that motor insulation has not deteriorated.
Check the connection between inverter and motor.
91
Page 92
Fault Display
Digital Operator
RUN ALARM (Green)
(Red)
Inverter Status
Explanation
Causes and Corrective Actions
OH
OL1
OL2
OL3
Protective Operation
OH (Cooling fin overheat) Temperature rise because of inverter overload operation or intake air temperature rise.
Output is shut OFF and motor coasts to a stop.
OL1 (Motor overload) Motor overload protection operates by built-in electronic thermal overload relay.
Check the load size or V/f pattern setting (constants n09 to n15)
Set the motor rated current shown on the nameplate by constant n32.
OL2 (Inverter overload) Inverter overload protection operates by built-in electronic thermal overload relay.
Check the load size or V/f pattern setting (constants n09 to n15)
Check the inverter capacity.
Excessive load
Improper V/f pattern
setting
Insufficient accel time if the fault occurs during acceleration
Intake air temperature exceeding 122<(50:)
Cooling fan stops
Check the following :
Load size
V/f pattern setting
(constants n09 to n15)
Intake air temperature.
Check the driven machine and correct the cause of the fault, or increase the value of constant n60 up to the highest value allowed for the machine.
OL3 (Overtorque detection) Inverter output current exceeded the preset value in constant n60. When overtorque is detected, inverter performs operation according to the preset setting of constant n59.
92
Page 93
Fault Display
Digital Operator
RUN ALARM (Green)
(Red)
Inverter Status
Explanation
Causes and Corrective Actions
Protective Operation
EF? (External fault) Inverter receives an external fault input from control circuit terminal.
Output is shut OFF and motor coasts to a stop.
EF?
F00
F01
F04
EF0: External fault reference through MEMOBUS communications EF2: External fault input command from control circuit terminal S2 EF3: External fault input command from control circuit terminal S3 EF4: External fault input command from control circuit terminal S4 EF5: External fault input command from control circuit terminal S5
CPF-00 Initial memory fault has detected.
CPF-01 ROM error has detected.
CPF-04 EEPROM fault of inverter control circuit is detected.
Cycle power. If the fault remains, replace the inverter.
Cycle power. If the fault remains, replace the inverter.
Record all constant data and initialize the constants. (Refer to page 36 for constant initialization.)
Cycle power. If the fault remains, replace the inverter.
Check the external circuit (sequence).
93
Page 94
Fault Display
Digital Operator
RUN ALARM (Green)
(Red)
Inverter Status
Explanation
Causes and Corrective Actions
F05
F07
CE
Protective Operation
Output is shut OFF and motor coasts to a stop.
CPF-06
Option card connecting fault
A non-corresponding option card is connected.
Remove power to the inverter. Check the connection of the digital operator. Verify inverter software number.
(OFF)
Insufficient power supply voltage
Control power supply fault
Hardware fault
Check the following :
Power supply voltage
Main circuit power
supply wiring is connected.
Terminal screws are securely tightened.
Control sequence. Replace the inverter.
F06
CPF-05 A/D converter fault is detected.
Cycle power. If the fault remains, replace the inverter.
CPF-07 Operator control circuit (EEPROM or A/D converter) fault
CE(MEMOBUS communications fault) Normal reception of communication data is not possible.
Check the communication devices or communication signals.
STP(Emergency stop) The inverter stops according to constant n04 after receiving the emergency stop fault signal.
Note : For display/clear of fault history, refer to page 34.
Cycle power. If the fault remains, replace the inverter.
Check the external circuit (sequence).
S P
or
Stops according to constant
94
Page 95

Troubleshooing

Trouble Cause Corrective Actions
The motor does not operate when an external operation signal is input.
The operation method selection is wrong.
The run command (n02) is not set to Control Circuit Terminal.
Set the run command (n02) to Control Circuit Terminal.
A 3-wire sequence is in effect.
The multi-function input method (n37) is set to 3-wire sequence, and the S2 control terminal is not closed.
To use a 3-wire sequence, make the wiring so that the S2 control terminal is closed. To use a 2-wire sequence, set the multi­function input (n37) to a value other than 3-wire sequence.
The motor stops. The torque is not output.
The stall prevention level during acceleration is too low.
Because the stall prevention level during acceleration (n56) is set too low, the output current reaches the set level, the output frequency is stopped, and the acceleration time is lengthened.
Check if the stall prevention level during acceleration (n56) is set to an appropriate value.
Local mode is in effect. Set the LO/RE selection of the
digital operator to RE.
The SW setting for the reference selection is wrong.
Example: The reference 4-20mA is input, but the SW is set to "V".
For analog input, make sure that the frequency reference (n03) and SW settings are correct.
The stall prevention level during running is too low.
Because the stall prevention level during running (n57) is set too low, the output current reaches the set level, and the speed drops.
Check if the stall prevention level during running (n57) is set to an appropriate value.
The load is too heavy.
If the load is too heavy, stall prevention is activated, the output frequency is stopped, and the acceleration time is lengthened.
Lengthen the set acceleration time (n16). Reduce the load.
The frequency reference is too low.
The input frequency reference is lower than the setting for the min.output frequency (n14).
Input a frequency reference greater than the min. output frequency (n14).
95
Page 96
Trouble Cause Corrective Actions
The motor speed is unstable. The motor speed fluctuates when operating with a light load.
The carrier frequency is too high.
If operating the motor with a light load, a high carrier frequency may cause the motor speed to fluctuate.
Decrease the carrier frequency (n46).
The V/f set value is too high for a low speed operation.
Because the set value for the V/f is too high, over-excitation occurs at low speeds.
Set the V/f (n09 to n15) according to the load characteristics.
The maximum frequency and base frequency were incorrectly adjusted.
Example: To operate a 60 Hz motor at 40 Hz or less, the maximum frequency and base frequency are set to 40 Hz.
Set the maximum frequency and the base frequency according to the motor specifications.
The inverter is used for an operation at 1.5 Hz or less.
Do not use the V7 inverter for an operation that runs at 1.5 Hz or less. For an operation at 1.5 Hz or less, use a different inverter model.
The analog reference input is unstable and has noise interference.
Increase the set value for the filter time constant.
The load is too heavy.
If the load is too heavy, stall prevention is activated, the output frequency is stopped, and the acceleration time is lengthened.
Reduce the load.
When the maximum frequency was changed, the maximum voltage frequency was also changed.
To increase the speed of a general-purpose motor, only change the maximum frequency.
The V/f set value is too low. Set the V/f (n09 to n15)
according to the load characteristics.
The stall prevention level during running is too low.
Because the stall prevention level during running (n57) is too low, the output current reaches the set level and the speed drops.
Check if the stall prevention level during running (n57) is set to an appropriate value.
96
Page 97
Trouble Cause Corrective Actions
The digital operator does not turn ON.
The power is not being supplied.
The breaker or other component on the power input side is not turned ON, and the power is being not supplied.
Check if the power is being supplied.
97
Page 98

9. SPECIFICATIONS

Short-term average deceleration torque
0.1, 0.25kW (0.13HP, 0.25HP): 150%
0.55, 1.1kW (0.5HP, 1HP): 100%
1.5kW (2HP) : 50%
2.2kW(3HP) or more: 20% Continuous regenerative torgue: Approx. 20%
0.1
(0.13)
0.25
(0.23)
0.55
(0.5)
1.1 (1)
1.5 (2)
2.2 (3)
4.0 (5)
200V single- / 3-phase
Voltage Class
Inverter Capacity (kVA)
Control Method
Overload Capacity
Accel/Decel Time
Braking Torque
V/f Characteristics
Rated Output
Current (A)
Max. Output
Frequency (Hz)
Rated Input Voltage
and Frequency
Allowable Voltage
Fluctuation
Allowable Frequency
Fluctuation
Frequency Control
Range
Frequency Setting
Resolution
Frequency Reference
Signal
Output Frequency
Resolution
Frequency Accuracy
(Temperature Change)
Max. Output Voltage (V)
3-phase, 200 to 230V (proportional to input voltage) Single-phase, 200 to 240V (proportional to input voltage)
3-phase, 200 to 230V, 50/60Hz Single-phase, 200 to 240V, 50/60Hz
Digital reference: ± 0.01% (-10 to + 50°C) Analog reference: ± 0.5% (25 ± 10°C)
0 to 10VDC (20k), 4 to 20mA (250), 0 to 20mA (250Ω), Frequency setting potentiometer (Selectable)
Digital reference:
0.1Hz (less than 100Hz) / 1Hz (100Hz or more) Analog reference: 1 / 1000 of max. output frequency
400Hz(Programmable)
-15 to + 10%
Sine wave PWM (V/f control)
0.1 to 400Hz
0.01Hz
150% rated output current for one minute
Possible to program any V / f patterm
0.0 to 999 sec. (accel / decel time are independently programmed)
Output
Characteristics
Power
Supply
Control Characteristics
±5%
Max. Applicable Motor Output
kW (HP)*
Model
CIMR-J7
*
C????
3-
phase
20P1
B0P1
0.3
0.8
20P2
B0P2
0.6
1.6
20P4
B0P4
1.1
3
20P7
B0P7
1.9
5
21P5
B1P5
––
3.0
8
22P2
4.2
11
24P0
6.7
17.5
Single­phase
*
Based on a standard 4-pole motor for max. applicable motor output.
Shows deceleration torque for uncoupled motor decelerating from 60Hz with the shortest possible deceleration time.

Standard Specifications (200V Class)

98
Page 99
200V single- / 3-phase
Electronic thermal overload relay
Motor coasts to a stop at approx. 200% of inverter rated current
Motor coasts to a stop after 1 minute at 150% of inverter rated output current
Motor coasts to a stop if DC bus voltage exceed 410V
Protected by electronic circuit
Can be set individual level during accel / decel, provided / not provided available during coast to a stop
Protected by electronic circuit (rated output current level) RUN lamp stays ON or digital operator LED stays ON.
(Charge LED is provided for 400V) ON until the DC bus voltage becomes 50V or less.
Four of the following input signals are selectable: Reverse run (3-wire sequence), fault reset, external fault (NO / NC contact input), multi-step speed operation, Jog command, accel / decel time select. external baseblock (NO / NC contact input), speed search command, accel / decel hold command, LOCAL / REMOTE selection, communication / control circuit terminal selection, emergency stop fault emergency stop alarm
Following output signals are selectable (1 NO / NC contact output) : Fault, running, zero speed, at frequency, frequency detection (output frequency or set value), during overtorque detection, minor error, during baseblock, operation mode, inverter run ready, during fault retry, during UV, during speed search, data output through communication
Full-range automatic torque boost, slip compensation, DC injection braking current / time at start/stop, frequency reference bias /gain, frequency reference with built-in potentiometer, constant copy, [MEMOBUS communications (RS-485/422, max. 19.2K bps) (optional) ]
Stops when DC bus voltage is approx. 200V or less (approx. 160V or less for single-phase series)
Following items are selectable : Not provided (stops if power loss is 15ms or longer), continuous operation if power loss is approx. 0.5s or shorter, continuous operation
Voltage Class
Motor Overload
Protection
Instantaneous
Overcurrent
Overload
Overvoltage
Undervoltage
Cooling Fin Overheat
Stall Prevention Level
Protected by electronic circuit (fan lock detection)Cooling Fan Fault
Ground Fault
Output
Signals
Input
Signals
Power Charge
Indication
Standard Functions
Protective FunctionsOther Functions
Multi-function
Input
Multi-function
Output
*
Momentary Power
Loss
Model
CIMR-J7
*
C????
3-
phase
20P1
B0P1
20P2
B0P2
20P4
B0P4
20P7
B0P7
21P5
B1P5 ––
22P2 24P0
Single­phase
* Minimum permissible load: 5VDC, 10mA (as reference value)
99
Page 100
200V single- / 3-phase
RUN and ALARM provided as LED's
Available to monitor frequency reference, output frequency, output current
Main circuit: screw terminals Control circuit: plug-in screw terminal
100m (328ft) or less
Open chassis
Open chasis : -10 to +50°C (14 to 122°F) (not frozen)
95%RH or less (non-condensing)
-20 to +60°C (-4 to +140°F) Indoor (free from corrosive gases or dust)
1000m (3280ft) or less Up to 9.8m / S
2
(1G) at less than 20Hz,
up to 2m / S
2
(0.2G) at 20 to 50Hz
Environmental
Conditions
Cooling fan is provided for the following models: 200V, 0.75kW (1HP) or large inverters (3-phase) 200V, 1.5kW (2HP) or large inverters (single-phase) Other models are self-cooling
Voltage Class
Other Functions
Display
Model
CIMR-J7
*
C????
3-
phase
Status Indicator
LED
Digital Operator
Terminals
Wiring Distance between Inverter
and Motor
Enclosure
Cooling Method
Ambient Temperature
Humidity
Storage Temperature *
Location
Elevation
Vibration
20P1
B0P1
20P2
B0P2
20P4
B0P4
20P7
B0P7
21P5
B1P5 ––
22P2 24P0
Single-
phase
* Temperature during shipping (for short period)
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.
100
Loading...