Saftronics VM10 User manual

5580 Enterprise Parkway, Fort Myers, Florida 33905 • Telephone [phone] • Fax [phone]
INSTRUCTION MANUAL
REV 1001
P/N 027-VM1001
(INR-S147-0716)
© 2001 Saftronics
VM10
Micro
AC Drive

1 BEFORE USING THIS PRODUCT.........11
1-1RECEIVING INSPECTIONS.................. 11
1-2APPEARANCE...................................12
1-3HANDLING THE PRODUCT .................13
1-4CARRYING.......................................14
1-5STORAGE AND TRANSPORTATION.......14
2 INSTALLATION AND CONNECTION......15
2-1OPERATING ENVIRONMENT...............15
2-2INSTALLATION METHOD...................15
2-3CONNECTION...................................16
2-3-1Basic connection ......................16
2-3-2Connecting the main circuit and
ground terminals.......................17
2-3-3Connecting the control terminals 18
2-3-4 Connection examples..................23
2-4OTHERS...........................................27
2-4-1Harmonic component................27
2-4-2Noise.......................................27
2-4-3Leakage current........................27
3 OPERATION...........................................28
3-1INSPECTION AND PREPARATION BEFORE
OPERATION......................................28
3-2OPERATION METHOD........................28
3-3TRIAL RUN......................................29
4 KEYPAD ..................................................30
4-1NAMES AND FUNCTIONS...................30
4-2OPERATINGKEYPAD.........................31
5 SELECTING FUNCTION.......................33
5-1FUNCTION SELECTION LIST ..............33
5-2DETAILS OF EACH FUNCTION............38
6 PROTECTIVE FUNCTION.....................59
6-1LIST OF PROTECTIVE FUNCTIONS.......59
6-2ALARM RESET .................................60
7 TROUBLESHOOTING............................61
7-1IN CASE OF TRIPPING........................61
7-2OTHER TROUBLE.............................67
8MAINTENANCE AND INSPECTION......70
8-1DAILY INSPECTION........................... 70
8-2PERIODIC INSPECTION...................... 70
8-3ELECTRICAL MEASUREMENTS IN THE
MAIN CIRCUIT ................................. 73
8-4INSULATION TEST ............................ 74
8-5INQUIRIES ABOUT PRODUCTS AND
PRODUCT WARRANTY...................... 75
8-6WARRANTY SERVICE........................ 76
9 SPECIFICATIONS..................................78
9-1STANDARD SPECIFICATIONS.............. 78
9-2COMMON SPECIFICATIONS................ 80
9-3DIMENSIONS.................................... 84
10 OPTIONS................................................87
10-1BUILT-INOPTIONS........................... 87
10-2EXTERNAL OPTIONS ........................ 87
11 APPLICABLE DC REACTORS..............88
12 COMPLIANCE WITH
STANDARDS..........................................89
12-1UL/CUL STANDARDS [APPLICABLE TO
PRODUCTS WITH UL/CUL MARK]...... 89
12-1-1 General........................................ 89
12-2-2 Precautions .................................. 89
12-2COMPLIANCE WITH EMC DIRECTIVE IN
EU [APPLICABLE TO PRODUCTS WITH
CE MARK]........................................ 90
12-2-1 General........................................ 90
12-3COMPLIANCE WITH LOW VOLTAGE
DIRECTIVE IN EU [APPLICABLE TO
PRODUCTS WITH TÜV OR CE MARK].90
12-3-1 General........................................ 90
12-3-2 Precautions .................................. 90
13 ELECTROMAGNETIC
COMPATIBILITY (EMC)......................91
13-1GENERAL ........................................ 91
13-2RFI FILTERS.................................... 91
13-3ELECTROMAGNETIC COMPATIBILITY
(EMC) RECOMMENDED INSTALLATION
INSTRUCTIONS.................................. 94
TABLE OF CONTENTS

Safety Instructions
Read this operation manual carefully and familiarize yourself with the operation of the drive before in-
stallation, connection (wiring), operation, or maintenance and inspection of the device. Become familiar
with the drive, safety information, and safety signs before using it.
In this instruction manual, safety signs are classified into the following categories.
!
WARNING Improper operation may result in death of serious injury.
!
CAUTION Improper operation may result in slight to medium injury or property damage.
Note: More serious situations than those covered by the CAUTION sign can result depending on the
circumstances. It is important that you always follow the instructions
Compliance with UL/cUL standards (applicable to products with UL/cUL mark)
!
CAUTION
1. WARNING Beware of electric shock. Be sure to turn the inverter off before starting work.
2. CAUTION When the charge lamp is lit, the inverter is still charged at a dangerous voltage.
3. WARNING There are two or more live parts inside the inverter.
4. The inverter is approved as a part used inside a panel, and must only be installed that way.
5. Wire the input, output and control terminals of the inverter referring to the table below. Use in-
sulated UL certified round crimp terminals for the input and output terminals, or use shrink-
wrap tubing for the required insulation. Use a crimping tool recommended by the terminal
manufacturer when attaching crimp terminals.
6. Install a fuse in the power supply to the inverter, referring to the table below.
Notes: 1) Only the L1/L and L2/N phases are provided for single-phase 230V input models.
2) Use copper wires of allowable maximum temperature 60 or 75C.
3) Use UL certified "fast acting fuse."
4) Consult factory for availability.
** Indicates product revision.
7. Use a power supply as shown in the table below for inverter. (Short circuit rating)
Drive type Input max. volta Input current
3 Phase input AC230V
Single phase input AC240V
Tightening torque
lb-in [Nm] Applicable wire diameter
AWG (mm2)2) Recommended fuse
Voltage Inverter type L1/R, L2/S,
L3/T 1) U. V. W Control
section L1/R, L2/S, L3/T
1) U. V. W Control
section
Fuse
[A]3) Gould
Company Bussmann Company
VM10E9ST32F12 ** 3 A4J3 JKS3
VM10E9ST32F25 ** 6 A4J6 JKS6
VM10E9ST32F50 ** 10 A4J10 JKS10
VM10E9ST32001 ** 15 A4J15 JKS15
VM10E9ST32002 **
14 (2.1)
20 A4J20 JKS20
VM10E9ST32003 **
1.2
12 (3.3) 30 A4J30 JKS30
3-phase 230V input
VM10E9ST32005 ** 1.8 10 (5.3) 40 A4J40 JKS40
VM10E9ST12F12 ** 6 A4J6 JKS6
VM10E9ST12F25 ** 6 A4J6 JKS6
VM10E9ST12F50 ** 10 A4J10 JKS10
VM10E9ST12001 **
14 (2.1)
15 A4J15 JKS15
VM10E9ST12002 **
1.2
12 (3.3) 30 A4J30 JKS30
Single-phase 230V
input (4)
VM10E9ST12003 ** 1.8
0.4
10 (5.3)
20
(0.5)
40 A4J40 JKS40
–1–

- 2 -
Compliance with low voltage directive in EU [Applicable to products with TÜV mark]
!
CAUTION
1. Safe separation for control interface of this drive is provided when this drive is installed in
overvoltage category II. PELV(Protective Extra Low Voltage) circuit or SELV(Safety Extra
Low Voltage) circuit from external controller is connected to the interface directly.
2. Basic insulation for control interface of this drive is provided when this drive is installed in
overvoltage category III. An isolation transformer has to be installed between power supply
mains and this drive when SELV circuit from external controller is connected to this drive
directly. Otherwise supplementary insulation between control interface of this drive and
environment must be provided.
3. The ground terminal G should always be connected to the ground. Don't use only RCD
as the sole method of electric shock protection.
Dimensions of external PE conductor should be same as dimensions of input phase
conductor and capable for possible fault.
4. Use MCCB or MC that conforms to EN or IEC standard.
5. Where RCD (Residual-current-operated protective device) is used for protection in case of
direct or indirect contact, only RCD of type B is allowed on the supply side of this EE
(Electric equipment). Otherwise another protective measure shall be applied such as
separation of the EE from the environment by double or reinforced insulation or isolation of
EE and supply system by the transformer.
6. The drive has to be installed in environment of pollution degree 2. If the environment is
pollution degree 3 or 4, the drive has to be installed in a cabinet of IP54 or higher.
7. Use a prescribed wire according to the EN60204 Appendix C.
8. Install the drive, AC or DC reactor, output filter in an enclosure that meets the following
requirement, to prevent a human body from touching directly to these equipment.
1) When a person can touch easily on each connecting terminal or live parts, install
the drive, AC or DC reactor, output filter in an enclosure with minimum degree of
protection of IP4X.
2) When a person can not touch easily on each connecting terminal or live parts, in-
stall the drive, AC or DC reactor, output filter in an enclosure with a minimum de-
gree of protection of IP2X.
9. It is necessary to install the drive in appropriate method using an appropriate RFI filter to
conform to the EMC directive. It is customer's responsibility to check whether the equip-
ment ,the drive is installed in, conforms to EMC directive.

-3-
Compliance with low voltage directive in EU [Continued]
!
CAUTION
Use of wires specified in Appendix C of EN 60204 is recommended.
Notes
1The applicable frame and series of the molded case circuit breaker (MCCB) and ground fault
circuit breaker GFCB) will vary according to the short circuit capacity of the transformer sup-
plying the equipment. For selection details, refer to the relevant specifications.
2 The recommended wire size for the main circuit is referenced to the low voltage standards at
an ambient temperature of 40C.
3The power supply impedance without a reactor is considered to be the equivalent of 0.1% of
drive capacity, with 10% current imbalance accompanied by voltage imbalance.
4 Crimp terminals up to 0.29” (7.4 mm) in width (including tolerance) can be used.
5 Crimp terminals up to 0.37” (9.5 mm) in width (including tolerance) can be used
6 Use a grounding cable of size equal to or larger than that of the input power supply cable.
7 Consult factory for availability.
** Indicates product revision
Recommended wire size AWG (mm2)
Molded case circuit
breaker (MCCB) or
ground fault circuit
breaker (GFCB)
Rated current [A]
Input circuit 2
3-phase 230V
[L1/R, L2/S, L3/T],
single phase 230V
[L1/L, L2/N]
Power
supply
volt-
age
Nominal
applied
motor
[HP]
Drive type
With
DCR Without
Reactor 3With
DCR Without
Reactor 3
Output
circuit 2
[U. V. W]
DCR 2
circuit
[P1]
[P(+)]
Control
wiring
1/8 VM10E9ST32F12 **
1/4 VM10E9ST32F25 **
1/2 VM10E9ST32F50 ** 5
1VM10E9ST32001 **
5
10
2VM10E9ST32002 ** 15
3VM10E9ST32003 ** 10 20
14
(2.5) 4 14 (2.5) 4 14 (2.5) 4 14 (2.5) 4
3-phase 230V
5VM10E9ST32005 ** 20 30 12
(4.0)
5
10
(6.0) 5 12 (4.0) 5 12 (4.0)
5
1/8 VM10E9ST12F12 **
1/4 VM10E9ST12F25 ** 5
1/2 VM10E9ST12F50 ** 5 10
1VM10E9ST12001 ** 10 15
14
(2.5) 4
2VM10E9ST12002 ** 15 20
14
(2.5) 4
(4.0) 4
14
(2.5) 414 (2.5) 4
Single phase 230V 7
3VM10E9ST12003 ** 20 30 12
(4.0)
5
10
(6.0) 5 14 (2.5) 5 12 (4.0)
5
20
(0.5)

Instructions for use
!
WARNING
1. This drive is designed to drive a three-phase induction motor and is not usable for a single-
phase motor or any other purposes.
Risk of fire!
2. This drive may not be used as for an elevator, life-support system, or for any other purpose di-
rectly affecting the safety of humans.
Safety precautions should be established and practiced in terms of the entire system, rather
than the drive alone.
Risk of of accident or personal injury!
Instructions for transport/installation
!
WARNING
1. The drive must be mounted on a non-combustible material such as metal.
Improper mounting could pose a fire risk!
2. Do not position the drive near inflammable materials.
Improper placement could pose a fire risk!
!
CAUTION
1. Do not carry the drive by its cover.
Drive may be dropped causing injury!
2. Do not allow foreign materials such as lint, paper dust, small chips of wood or metal, or dust to
enter the drive or adhere to the heat sink.
Risk of fire!
3. Do not install or operate damaged drive or a drive with a missing part.
Risk of personal injury!
4. Do not step on the product.
Risk of personal injury!
5. When stacking up in tiers, do not exceed the number of tiers indicated on the packing carton.
Risk of personal injury!
-4-

Instructions on wiring
!
WARNING
1. When the drive is connected to power, connect it via a line-protection molded case
circuit breaker or an ground fault circuit breaker (residual current operated protective device).
Risk of fire!
2. Be sure to connect the ground wire,
Risk of electric shock or fire!
3. Ensure that a licensed specialist
performs the wiring work.
4. Check before starting the wiring that the power is off (OPEN).
Risk of electric shock!
5. Do not wire up the drive until it has been installed securely,
Risk of electric shock or injury!
6. The drive must be grounded in accordance with the national and local safety codes,
Risk of electric shock!
!
CAUTION
1. Check that the number of phases and the rated voltage of this product correspond to the
number of phases and voltage of the AC power supply.
Risk of fire!
2. Do not connect the AC power supply to the output terminals (U, V, W).
Risk of injury!
3. Check the output terminals (U,V,W) for the phase order and connect them to the motor
correctly.
Risk of fire!
4. Do not connect a braking resistor directly to the DC terminals [P(+), N(-)].
Risk of fire!
5. Noise is generated from the drive, motor, and wiring. Take care that this noise does
not cause malfunctions in peripheral sensors and equipment.
Risk of accident!
-5-

Instructions on operation
!
WARNING
1. Be sure to put on the surface cover before turning the power ON (close).
Never remove the cover while the power is applied to the drive.
Risk of electric shock!
2. Never operate switches with wet fingers.
Risk of electric shock!
3. The interior of the drive may remain charged after turning off the power.
Therefore, never attempt to remove the surface cover except for wiring service and periodic
maintenance.
Risk of electric shock!
!
WARNING
1. When the retry function is selected, the drive may automatically restart after
tripping, depending on the cause of the trip.
(Design the machine to secure personal safety in the event of restart.)
Risk of accident!
2. Operating conditions may occasionally be different from the preset acceleration/
deceleration time or speed because of activation of the stall prevention function.
In such a case, personal safety must be secured through adequate machine design.
Risk of accident!
3. The stop key is effective only when a function setting has been established.
Therefore install an emergency switch independently. When operation via the external signal
terminal is selected, the STOP key on the keypad panel will be disabled.
Risk of accident!
4. Operation starts suddenly if alarm reset is done with a running signal input. Check that no
running signal is input before alarm reset.
Risk of accident!
5. Never touch the drive terminals when energized even if it has stopped.
Risk of electric shock!
6. Never touch the keys on the keypad panel with a pointed object such as a needle.
Risk of electric shock!
!
CAUTION
1. Never touch the heat sink because they become very hot.
Danger of burns!
2. The drive can set high-speed operation easily. Carefully check the limit of the motor and ma-
chine before changing the setting.
Risk of injuries!
3. Do not use the drive brake function for mechanical holding.
Risk of injuries!
-8-

Instruction for maintenance/inspection, and replacement
!
WARNING
1. Do not commence inspection work until at least five minutes after the power has been
turned off (open).
(In addition, make sure that the charge lamp has gone off and check that the DC voltage
between terminals P(+) and N(-) does not exceed 25V DC.)
Danger of electric shock!
2. Only qualified personnel should perform maintenance and inspection or replacement opera-
tions.
(Take off all metal objects (watch, ring, etc.) before starting.)
(Use well-insulated tools.)
Risk of electric shock or injury!
3. Never modify the product,
Danger of electric shock!
Instruction for disposal
!
CAUTION
1. Since this product contains lead solder, it must be treated as industrial waste when
it is disposed of. Entrust it to a waste processing company when disposing it.
General instructions
1. The figures in this operation manual may show the drive with covers and safety screens re-
moved to explain the structure in details. Therefore, be sure to replace the covers and
screens to their original positions and operate the drive according to the instruction manual.
-6-

Preface
Thank you for purchasing our VM10 series drive. This product is used to drive a 3 phase electrical mo-
tor at variable speed. Improper use of this product may result in personal injury and/or property dam-
age. Read all operating instructions before using this device. Since this manual does not cover the use
of option boards, etc., refer to relevant manuals for option operations.
These instructions do not purport to cover all details or variations in equipment, nor to provide for every
possible contingency to be met during installation, operation, and maintenance. Should further informa-
tion be desired or should particular problems arise that are not covered sufficiently for the purchaser's
purpose, the matter should be referred to Saftronics, Technical Service.
NOTE: The terms “inverter,” “controller,” and “drive” are sometimes used interchangeably throughout the
industry. We will use the term “drive” in this document.
NOTE: Always read the complete instructions prior to applying power or troubleshooting the equipment
and follow all procedures step by step.
-8-

– 9 –
VM10 Model Number Configurator
VM10 E9ST 3 2 _ _ _ A 1
Drive Type
Enclosure
9 = IP 20
Protected Chassis
Input Phases
3 = Three Phase
1 = Single Phase
Input Voltage
2 = 230V 50/60Hz
Horsepower
F50 = 1/2 HP
001 = 1 HP
Factory Use
Factory Use
VM10 Part Number Configurator
VM10 2 _ _ _ - 9
Drive Type
Input Voltage
2 = 230 V 50/60 Hz
Horsepower
F50 = 1/2 HP
001 = 1 HP
Enclosure
9 = IP20 (Protected Chassis) Three Phase Input
91= IP20 (Protected Chassis) Single Phase Input

-10-
VM10
HP
Rating
Enclosure Rated
Output
Current
(A)
Overload
(150%
1min.)
Model Number Part Number Dimensions
H x W x D (inches)
Weight
(lbs)
230VAC, 3 phase, 50/60Hz Input
1/8 IP20 0.7 1.1 VM10E9ST32F12 ** VM102F12-9 4.72 x 3.15 x 3.23 1.3
1/4 IP20 1.4 2.1 VM10E9ST32F25 ** VM102F25-9 4.72 x 3.15 x 3.43 1.3
1/2 IP20 2.5 3.8 VM10E9ST32F50 ** VM102F50-9 4.72 x 3.15 x 3.82 1.5
1 IP20 4 6.0 VM10E9ST32001 ** VM102001-9 4.72 x 3.15 x 4.80 1.8
2 IP20 7 10.5 VM10E9ST32002 ** VM102002-9 5.12 x 4.33 x 5.55 3.3
3 IP20 10 15.0 VM10E9ST32003 ** VM102003-9 5.12 x 4.33 x 5.55 3.3
5 IP20 16.5 24.8 VM10E9ST32005 ** VM102005-9 7.09 x 5.51 x 5.47 4.8
230VAC, Single phase, 50/60Hz Input
1/8 IP20 0.7 1.1 VM10E9ST12F12 ** VM102F12-91 4.72 x 3.15 x 3.23 1.3
1/4 IP20 1.4 2.1 VM10E9ST12F25 ** VM102F25-91 4.72 x 3.15 x 3.43 1.3
1/2 IP20 2.5 3.8 VM10E9ST12F50 ** VM102F50-91 4.72 x 3.15 x 4.61 1.5
1 IP20 4 6.0 VM10E9ST12001 ** VM102001-91 4.72 x 3.15 x 5.59 2.0
2 IP20 7 10.5 VM10E9ST12002 ** VM102002-91 5.12 x 4.33 x 5.94 3.5
3 IP20 10 15.0 VM10E9ST12003 ** VM102003-91 7.09 x 5.51 x 5.47 4.8
** Indicates product revision

-11-
Before Using This Product
1-1 Receiving Inspections
Unpack and check the product as explained below.
For questions or problems with this product, please contact Saftronics or your local distributor.
(1) Check the ratings name plate to confirm that the delivered product is correct.
Figure 1-1-1 Ratings nameplate
¬MODEL Drive type.
-INPUT Number of input phases, rated input voltage, rated input current,
rated input frequency
®OUTPUT Number of output phases, rated output capacity, rated output volt-
age, output frequency range, rated output current, overload capacity
¯SER. NO Product number
9 9 0528R0001
(2) Check for damaged parts, missing parts, and dents or other damage on the covers or the main unit
upon delivery.
Production lot serial number
Production month:1 to 9: January to September,
X: October, Y: November, Z: December
Production year: Last one digit of year (2 = 2002)

-12-
1-2 Appearance
(1) Surface cover
(2) Keypad panel
(3) Frequency setting POT (VR) (built-in POT)
(4) Ratings nameplate
(5) Heat sink
(6) Cooling fan (2 HP or more)
(7) Charge lamp CRG
(8) Control terminal block
(9) Main circuit terminal block
3 phase 230V [ G, L1/R, L2/S, L3/T, P1, P(+)]
Single phase 230V [G, L1/L, L2/N, P1, P(+)]
(10) Main circuit terminal block
[P(+), N(-), U, V, W, G]
(6)
(9)
(9)
(4)
(7)
(10)
(7)
(8)
(10)
(1) (2)
(3)
(5)

-13-
1-3 Handling the Drive
Remove the surface cover as explained below.
(1) For 1/8 to 1 HP drives
Grasp the upper and lower parts of the cover
with both hands, and pull the cover off the
front of the drive.
(2) For 2 to 5 HP drives
Expand the lower part of the cover horizontally, lift the cover to the front, and then remove it.

-14-
1-4 Carrying
Always hold the main case while carrying this product.
If carried by the cover or other parts, the drive may be dropped or damaged.
Force must not be applied to the plastic drive cover while carrying.
1-5 Storage and transportation
Store and transport this product under the conditions listed in Table 1-5-1.
Table 1-5-1 Storage and transportation environment
Item Specifications
Storage temperature
Transportation temperature -25 to +65 C (-4 to +149 F)
Relative humidity 5 to 95% *
Do not allow water condensation or ice for-
mation due to sudden temperature changes.
Atmosphere The drive must not be exposed to dust, direct sunlight, corrosive gas, inflammable gas, oil mist, vapor, water drops, or vibration.
There must be no salt in the atmosphere.
86 to 106 kPa (During storage)
Atmospheric pressure 70 to 106 kPa (During transportation)
* A large change in temperature within this humidity range may cause water
condensation or ice formation. Do not store where such changes may occur.
Storage precautions
¬Do not locate this drive directly on a floor; place it on a rack or shelf.
-To store the drive in a severe atmosphere, pack it in a plastic bag.
®If the drive must be stored at a place where it may be affected by humidity, enclose a drying agent
such as silica gel, and pack in a plastic bag.

-15-
2 Installation and Connection
2-1 Operating Environment
Install this product at a place satisfying the conditions listed in Table 2-1-1.
Table 2-1-1 Operating environment
Item Specifications
Place Indoor
Ambient temperature -10 to +50 C (+14 to +122°F)
Relative humidity 5 to 95% RH (no condensation allowed)
Atmosphere
The drive must not be exposed to dust, direct sunlight, corrosive
gas, inflammable gas, oil mist, vapor, or water drops.
There must be no salt in the atmosphere.
There must be no water condensation due to sudden changes in
temperature.
Altitude 3300 feet (1000m) or less (air pressure: 86 kPa to 106 kPa)
Vibration
3 mm 2 to less than 9 Hz
9.8 m/s29 to less than 20 Hz
2 m/s220 to less than 55 Hz
1 m/s255 to less than 200 Hz
2-2 Installation Method
¬Tightly fasten the drive in the upright position on a strong
structure using four bolts (M4) with the product logo facing the
front. Do not install the drive upside down, or horizontally.
-Heat is generated while the drive is operating, so the open-
ings shown in Figure 2-2-1 are necessary for the passage of
cooling air. The generated heat is convected upward by the
built-in cooling fan, so do not install the drive below any other
device that is sensitive to heat.
®The temperature of the heat sink increases to about 90 C
while the drive is operating. Therefore, the surface behind
where the product is located must be able to withstand this
temperature increase.
!
WARNING Install the drive on a nonflammable material such as metal,
otherwise fire could occur.
¯When installing this drive in a control panel, carefully consider the ventilation to pre-
vent the ambient temperature of the drive from exceeding the specified value. Never
install the drive in a closed box from which heat is not radiated fully.
4"
(10 cm)
4"
(10 cm)
0.4"
(1 cm) 0.4" (1 cm)
VM10
Drive
Figure 2-2-1
Installation Clearance

-16-
°If two or more drives need to be installed in the same device or control panel, they should be ar-
ranged horizontally to minimize the influence of heat between them. If two or more drives must be
installed vertically, place a plate between them to prevent the upper drive from being affected by
heat from the lower drive.
Figure 2-2-2 How to install two or more drives
!
CAUTION 1. Do not allow foreign matter such as lint, paper dust, small chips of
wood or metal, or dust to enter the drive or adhere to the heat sink.
Risk of fire!
2-3 Connection
Remove the surface cover to connect the terminal blocks. Wire them properly as follows.
2-3-1 Basic connection
¬Only connect the power to the main power supply input terminal of the drive. If connected to an-
other terminal, the drive will be damaged (see Figure 2-3-1).
-Always ground the ground terminal to help prevent fire and electric shock, and to minimize noise.
®Use a reliable crimp terminal for connection between terminal and wire.
¯After terminating the connection (wiring), check for the following items:
a. Correct connection.
b. All necessary connections have been made
c. Short-circuit or ground fault between terminals and wires
°Connection modification after power-on
The smoothing capacitor in the direct current part of the main circuit takes some time to discharge
after the power is turned off. Use a multimeter to check that the DC voltage is reduced to a safe
level (25 VDC or less) after the charge lamp goes off to avoid danger. Check that the voltage is
zero before short-circuiting any circuit, since residual voltage may cause sparking.
!
WARNING
1. Always ground the drive.
Risk of electric shock and fire!
2. Ensure that a licensed specialist performs the wiring work.
3. Check before starting the wiring that the power is off.
Risk of electric shock!
Drive Drive
Air supply Air supply
(a) Horizontal arrangement (b) Vertical arrangement
Drive
Air
supply
Plate
Drive

-17-
2-3-2 Connecting the main circuit and ground terminals
Table 2-3-1 Functions of main circuit and ground terminals
Symbol Name Explanation
L1/R,L2/S,L3/T Connects 3 phase power.(3 phase 230V input)
L1/L,L2/N Main power supply input Connects single phase power. (Single phase 230V input)
U, V, W Drive output Connects 3 phase motor.
P1, P(+) DC reactor Connects input power-factor correcting DC reactor
(optional).
P(+), N(-) DC intermediate circuit Connected to DC link circuit terminal
(for DC bus connection).
GDrive ground Ground terminal for drive chassis (case).
(1) Main power supply input terminals:
3-phase 230V – [L1/R, L2/S, L3/T]
Single-phase 230V – [L1/L, L2/N]
¬Connect the main power supply input terminals to the
power supply via a molded case circuit breaker or ground
fault circuit breaker for circuit protection. A ground fault
circuit breaker which can also detect DC current is rec-
ommended. Phase-sequence matching is unnecessary.
-It is recommended that a magnetic contactor is con-
nected to prevent any failure or accident from becoming
serious by disconnecting the drive from the power supply
when the drive protective function operates.
®Do not turn on or off the main power supply to start or
stop the drive; instead, use the control circuit terminal
FWD/REV or the RUN/STOP keys on the keypad panel.
If it is unavoidable to turn the main power supply on or off
to start or stop the drive, it must not exceed once per hour.
(2) Drive output terminals [U, V, W]
¬Connect these terminals to the 3-phase motor in the correct phase-sequence. If motor rotation
direction is incorrect, exchange any two of the U, V, and W phases.
-Do not connect a phase-advance capacitor or surge absorber to the drive output.
®Excessive wiring length between the drive and the motor causes a high frequency current
to flow due to floating capacity between cables, making the drive trip, increasing the leak-
age current and deteriorating the accuracy in the current display. To prevent this, the wiring
distance to the motor should not exceed 165 feet (50 m). When the drive is operated in the
low noise mode (carrier frequency: 8 to 15 kHz) and the wiring distance is long, add an op-
tional output circuit filter.
Figure 2-3-1 Arrangement of
main circuit and ground termi-
nals
P(+)P1L3/TL2/S
G
GL1/R
WVUN(-)P(+)
VM10
For 3 phase 230V input
For single phase 230V input
P(+)P1L2/N
GL1/L

-18-
(3) DC reactor connecting terminal [P1, P(+)]
Use this terminal to connect a input power-factor correcting
DC reactor (optional). Remove the jumper connected in
the factory before connecting the DC reactor (see Figure
2-3-2. Use diagonal cutting pliers to cut the surface cover
barriers from P1, P(+) terminals before connection.
If no DC reactor is used, do not remove the jumper
(4) Drive grounding terminal [ G]
For safety and noise reduction, always ground the
drive grounding terminal [ G]. Grounding of the
metal frames of electric equipment must be done
in accordance with the applicable national and lo-
cal safety codes.
¬Connect a short, heavy gauge wire to the
grounding terminal of the drive for connection
with a ground electrode installed exclusively
for the drive system.
!
CAUTION
1. Check that the number of phases and the rated voltage of this product
match the number of phases and voltage of the AC power supply
Risk of fire!
2. Never connect the AC power supply to the output terminals [U, V, W]
Risk of injury!
3. Do not connect a braking resistor directly to the DC terminals [P(+), N(-)]
Risk of fire!
2-3-3 Connecting the control terminals
Table 2-3-2 lists the functions of the control circuit
terminals. The method of connecting a control circuit
terminal depends on how its function is set. Connect
the control circuit terminals according to the set func-
tions.
(1) Digital input terminal
Figure 2-3-3 shows the circuit configuration.
Use a reliable contact.
Top of drive
Barrier
(b) Cutting the barrier
Figure 2-3-2 Connection of DC reactor
(a) Connection diagram
Figure 2-3-3 Digital input terminals
P(+)
P1
VM10
FWD or others
CM
4.7kΩ
+24 to +27Vdc
VM10