Omron 3G3JV-A2015, 3G3JV-A2004, 3G3JV-A2002, 3G3JV-A2022, 3G3JV-A2001 User Manual

Cat. No. I528-E1-1

USER’S MANUAL

FIRST DRAFT!

SYSDRIVE 3G3JV

Compact Simplified Inverter

Thank you for choosing this SYSDRIVE 3G3JV

-series product. Proper use
and handling of the product will ensure proper product performance, will
lengthen product life, and may prevent possible accidents.
Please read this manual thoroughly and handle and operate the product
with care.

NOTICE

1. This

2. Although care has been given in documenting the product, please contact

3. The product contains potentially dangerous parts under the cover. Do not

4. We recommend that you add the following precautions to any instruction

5. Specifications

manual describes the functions of the product and relations with other
products. You should assume that anything not described in this manual is
not possible.

OMRON representative if you have

your
manual.

attempt
injury
assemble the product.

manuals

S Precautions on the dangers of high-voltage equipment.
S Precautions

been

prove product performance.

to open the cover under any circumstances. Doing so

or death and may damage the product. Never attempt to repair or dis

you prepare for the system into which the product is being installed.

on touching the terminals of the

turned of

f. (These

and functions may be changed without notice in order to im

terminals are live even with the power turned of

any suggestions on improving this

may result in

product even after power has

f.)

-

-

Items to Check Before Unpacking

Check

the following items before removing the product from the package:

S Has

the correct product been delivered (i.e., the correct model number and

specifications)?

S Has the product been damaged in shipping?
S Are any screws or bolts loose?

Overview

1-1 Function
1-2 Nomenclature

1

Chapter 1

3 p ase 00 C

C osed,

S g e p ase 00 C

C osed,

C ect es

Overview Chapter 1
1-1 Function

The compact simple SYSDRIVE 3G3JV-Series Inverter ensures greater
ease of use than any conventional model.
The 3G3JV Inverter meets EC Directives and UL/cUL standard require­ments for worldwide use.

H SYSDRIVE 3G3JV Inverter Models

•The following 3- and single-phase 200-VAC-class 3G3JV models are available.

Rated voltage Protective

structure

3-phase 200 VAC Closed,

wall-mounting type
(conforming to IP20)

Single-phase 200 VAC Closed,

wall-mounting type
(conforming to IP20)

Maximum applied

motor capacity

0.1 (0.1) kW 3G3JV-A2001

0.2 (0.25) kW 3G3JV-A2002

0.4 (0.55) kW 3G3JV-A2004

0.75 (1.1) kW 3G3JV-A2007

1.5 (1.5) kW 3G3JV-A2015

2.2 (2.2) kW 3G3JV-A2022

0.1 (0.1) kW 3G3JV-AB001

0.2 (0.25) kW 3G3JV-AB002

0.4 (0.55) kW 3G3JV-AB004

0.75 (1.1) kW 3G3JV-AB007

1.5 (1.5) kW 3G3JV-AB015

Model

Note The figures in parentheses indicate capacities for motors used outside Japan.

H International Standards (EC Directives and UL/cUL

Standards)

The 3G3JV Inverter meets the EC Directives and UL/cUL standard requirements for
worldwide use.

EC Directives

UL/cUL UL508C

1-2

Classification Applicable standard

EMC directive EN50081-2 and EN5008-2
Low-voltage directive prEN50178

Overview Chapter 1

H Versatile Easy-to-use Functions

•Incorporates

•Easy to initialize and operate with the FREQ adjuster on the Digital Operator.

•Ease

can

•Optional
face cards.

of maintenance. The cooling fan is easily replaceable. The life of the cooling fan

be prolonged by turning on the cooling fan only when the Inverter is in operation.

the

functions and operability ensured by the conventional 3G3EV Series.

RS232 (3G3JV

-PSI232J)

and RS422/485 MODBUS (3G3JV

-PSI485J) inter

H Suppression of Harmonics

Connects to DC reactors, thus suppressing harmonics more effectively than conven­tional AC reactors.

Further
of the DC and AC reactors.

improvement in the suppression of harmonics is possible with the combined use

-

1-3

Overview Chapter 1
1-2 Nomenclature

H Panel

Top protection cover

Mounting holes
Terminal
block

(Two)

Digital Operator

ALARM display

RUN indicator

Terminal
block

U-shaped
cutouts
(Two)

Note 1. The

front cover functions as a terminal cover

be removed.

Note 2. Instead

outs located diagonally.
3G3JV-A2001 (0.1 kW), 3G3JV-A2002 (0.25 kW), 3G3JV-A2004 (0.55 kW),
and 3G3JV-A2007 (1.1 kW)
3G3JV-AB001 (0.1 kW), 3G3JV-AB002 (0.25 kW), and 3G3JV-AB004
(0.55 kW)

of mounting holes, each of

Optional cover

Front cover

Front cover

mounting screw

Bottom

protection cover

. The Digital Operator Unit cannot

the following models has two U-shaped cut

-

1-4

Overview Chapter 1

H Digital Operator

Indicators

Data display

(Setting/Monitor
item indicators)

Keys

Appearance Name Function

Data display Displays relevant data items, such as frequency

reference, output frequency, and parameter set
values.

FREQ adjuster Sets the frequency reference within a range

between 0 Hz and the maximum frequency.

FREF indicator The frequency reference can be monitored or set

while this indicator is lit.

FOUT indicator The output frequency of the Inverter can be

monitored while this indicator is lit.

IOUT indicator The output current of the Inverter can be

monitored while this indicator is lit.

MNTR indicator The values set in U01 through U10 are

monitored while this indicator is lit.

F/R indicator The direction of rotation can be selected while

this indicator is lit when operating the Inverter
with the RUN Key.

LO/RE indicator The operation of the Inverter through the Digital

Operator or according to the set parameters is
selectable while this indicator is lit.

FREQ adjuster

Note This status of this indicator can be only

monitored
Any RUN command input is ignored while
this indicator is lit.

PRGM indicator The parameters in n01 through n79 can be set or

monitored while this indicator is lit.
Note While the Inverter is in operation, the pa-

rameters can be only monitored and only
some parameters can be changed. Any
RUN command input is ignored while this
indicator is lit.

while the Inverter

is in operation.

1-5

Overview Chapter 1

Appearance FunctionName

Mode Key Switches the setting and monitor item indicators

in sequence.
Parameter being set will be canceled if this key is

pressed before entering the setting.

Increment Key Increases multi-function monitor numbers,

parameter numbers, and parameter set values.

Decrement Key Decreases multi-function monitor numbers,

parameter numbers, and parameter set values.

Enter Key Enters multi-function monitor numbers,

parameter numbers, and internal data values
after they are set or changed.

RUN Key Starts the Inverter running when the 3G3FV is in

operation with the Digital Operator.

STOP/RESET Key Stops the Inverter unless parameter n06 is not

set to disable the STOP Key.

1-6

Design

2-1 Installation
2-2 Wiring

2

Chapter 2

ated o tage

ode 3G3J

eg t( g)

3 p ase 00 C

S g e p ase 00 C

Design Chapter 2
2-1 Installation

2-1-1 Dimensions

D 3G3JV-A2001 to 3G3JV-A2007 (0.1 to 0.75 kW) 3-phase 200-VAC Input

3G3JV-AB001 to 3G3JV-AB004 (0.1 to 0.4 kW) Single-phase 200-VAC
Input

Rated voltage Model 3G3JV-

3-phase 200 VAC

Single-phase 200 VAC

A2001 70 Approx. 0.5
A2002 70 Approx. 0.5
A2004 102 Approx. 0.8
A2007 122 Approx. 0.9
AB001 70 Approx. 0.5
AB002 70 Approx. 0.5
AB004 112 Approx. 0.9

Dimensions (mm)

D

Weight (kg)

2-2

ated o tage

ode 3G3J

eg t( g)

3 p ase 00 C

S g e p ase 00 C

Design Chapter 2

D 3G3JV-A2015 to 3G3JV-A2022 (1.5 to 2.2 kW) 3-phase 200-VAC Input

3G3JV-AB007 to 3G3JV-AB015 (0.75 to 1.5 kW) Single-phase 200-VAC
Input

Two, 5-dia. holes

Rated voltage Model 3G3JV-

3-phase 200 VAC

Single-phase 200 VAC

A2015 129 Approx. 1.3
A2022 154 Approx. 1.5
AB007 129 Approx. 1.5
AB015 154 Approx. 1.5

Dimensions (mm)

D

Weight (kg)

2-3

Design Chapter 2
2-1-2 Installation Conditions

Caution Be

!

sure to install the product in the correct direction and provide spe

cified

clearances between the Inverter and control panel

or with oth

er devices. Not doing so may result in fire or malfunction.

Caution Do not allow foreign objects to enter inside the product. Doing so

!

may result in fire or malfunction.

Caution Do

!

not apply any strong impact. Doing so

may result in damage to

the product or malfunction.

Caution Provide an appropriate stopping device on the machine side to

!

secure

safety

. (A holding brake is not a stopping

device for securing

safety.) Not doing so may result in injury.

Caution Provide an external emergency stopping device that allows an

!

instantaneous stop of operation and power interruption. Not doing
so may result in injury.

-

-

2-4

Design Chapter 2

H Installation Direction and Dimensions

•Install the Inverter under the following conditions.
Ambient temperature for operation (panel-mounting): –10°C to 50°C
Humidity: 90% or less (no condensation)

•Install

in a totally enclosed panel that is completely protected from floating dust.

•When

der, oil, water, or other foreign matter does not get into the Inverter.

•Do not install the Inverter on inflammable material such as wood.

the Inverter in a clean location free from oil mist and dust. Alternatively

installing or operating the Inverter

, always take special care so that metal pow

, install it

H Direction

•Install the Inverter on a vertical surface so that the characters on the nameplate are

oriented

upward.

H Dimensions

•When

heat dissipation from the Inverter.

installing the Inverter

W = 30 mm min.

, always provide the following clearances to allow normal

100 mm min. Air

-

Inverter

SideInverter Inverter

100 mm min. Air

2-5

Design Chapter 2

H Ambient Temperature Control

•To

enhance operation reliability

from extreme temperature changes.

the Inverter is installed in an enclosed environment such as a box, use a cooling fan

•If

or air conditioner to maintain the internal air temperature below 50°C.

life of the built-in electrolytic capacitors of the Inverter is prolonged by maintaining

The
the internal air temperature as low as possible.

surface temperature of the Inverter may rise approximately 30°C higher than the

•The

ambient
far as possible if the equipment and wires are easily influenced by heat.

temperature. Be sure to keep away equipment and wires from the Inverter as

H Protecting Inverter from Foreign Matter during Installation

•Place a cover over the Inverter during installation to shield it from metal power pro-

duced by drilling.
Upon
ventilation will be affected, causing the Inverter to overheat.

completion of installation, always remove the cover from the Inverter

, the Inverter should be installed in an environment

. Otherwise,

free

2-6

Design Chapter 2
2-2 Wiring

WARNING Wiring must be performed only after confirming that the power

!

supply has been turned OFF. Not doing so may result in electrical
shock.

WARNING Wiring must be performed by authorized personnel. Not doing so

!

may result in electrical shock or fire.

WARNING Be sure to confirm operation only after wiring the emergency stop

!

circuit. Not doing so may result in injury.

WARNING Always

!

connect the ground terminals

to a ground of 100 Ω or less for
the 200-VAC class, or 10 Ω or less for the 400-VAC class. Not
connecting to a proper ground may result in electrical shock.

Caution Install external breakers and take other safety measures against

!

short-circuiting in external wiring. Not doing so may result in fire.

Caution Confirm

!

that the rated input voltage of the Inverter is the same as the
AC power supply voltage. An incorrect power supply may result in
fire, injury, or malfunction.

Caution Connect

!

the Braking Resistor and Braking Resistor Unit as specified

in the manual. Not doing so may result in fire.

Caution Be

!

sure to

wire correctly and securely

. Not doing so may result in in

jury or damage to the product.

-

Caution Be

!

Caution Do

!

sure to firmly tighten the screws on the terminal block. Not

so may result in fire, injury, or damage to the product.

not connect an AC power to the U, V

, or W output. Doing so may

result in damage to the product or malfunction.

doing

2-7

Design Chapter 2
2-2-1 Removing and Mounting the Covers

It

is necessary to remove the front cover
er, and the bottom protection cover from the Inverter to wire the terminal
block.
Follow the instructions below to remove the covers from the Inverter.
To mount the covers, take the opposite steps.

H Removing the Front Cover

•Loosen the front cover mounting screws with a screwdriver.

, optional cover

, top protection cov

-

•Press
tom
lowing illustration.

the left and right sides of the front cover in the arrow 1 directions and lift the bot

of the cover in the arrow 2 direction to

remove the front cover as shown in the fol

-

-

2-8

Design Chapter 2

H Removing the Top and Bottom Protection Covers and

Optional Cover

D Removing the Top and Bottom Protection Covers

•After

D Removing the Optional Cover

•After

removing the front cover

directions.

removing the front cover

position A as a fulcrum.

, pull the top and bottom protection covers in the arrow

, lift the optional cover

Position A

in the arrow 2 direction based on

1

Note The

moved.

front cover functions as a terminal cover

. The Digital Operator cannot be re

2-9

-

Design Chapter 2
2-2-2 Terminal Block

Before wiring the terminal block, be sure to remove the front cover, top
protection cover, and the bottom protection cover.

H Position

Control circuit terminals

Main circuit output terminals

of T

erminal Block

Ground terminal

H Arrangement of Control Circuit Terminals

Main circuit input terminals

Ground terminal

2-10

Design Chapter 2

H Arrangement of Main Circuit Terminals

D 3G3JV-A2001 to 3G3JV-A2007

3G3JV-AB001 to 3G3JV-AB004

Main Circuit Input Terminals
(Upper Side)

Main Circuit Output Terminals
(Lower Side)

D 3G3JV-A2015 to 3G3JV-A2022

3G3JV-AB007 to 3G3JV-AB015

Main Circuit Input Terminals
(Upper Side)

Main Circuit Output Terminals
(Lower Side)

2-11

(T

iti

)

Design Chapter 2

H Main Circuit Terminals

Symbol Name Description

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

+2

–

Power supply input
terminals

Motor output
terminals

Connection terminals
+1 and +2:
DC reactor
connection terminals

+1 and –:
DC power supply
input terminals

Ground terminal Be sure to ground the terminal under the following

–

3G3JV-A2j: 3-phase 200 to 230 VAC
3G3JV-ABj: Single-phase 200 to 240 VAC
Note Connect single-phase input to terminals R/L1

and S/L2.

3-phase power supply output for driving motors.
3G3JV-A2j and 3G3JV-ABj: 3-phase 200 to 230 VAC
Note The maximum output voltage corresponds to the

power supply input voltage of the Inverter.

Connect the DC reactor for suppressing harmonics to
terminals +1 and +2.

When driving the Inverter with DC power, input the DC
power to terminals +1 and –.

erminal +1 is a pos

conditions.

ve terminal.

3G3JV-A2j: Ground at a resistance of 100 Ω or less.
3G3JV-ABj: Ground at a resistance of 100 Ω or less.
Note Be sure to connect the ground terminal directly

to the motor frame ground.

2-12

8 mA at 24 VDC

(during running)

1 A max. at 30 VDC
10 VDC

Design Chapter 2

H Control Circuit Terminals

Symbol Name Function Signal level

Input

Output

S1 Forward/Stop Forward at ON. Stops

at OFF.

S2 Multi-function input 1

(S2)

S3 Multi-function input 2

(S3)

S4 Multi-function input 3

(S4)

S5 Multi-function input 4

(S5)

SC Sequence input com-

mon

FS Frequency reference

power supply

FR Frequency reference

input

FC Frequency reference

common

MA Multi-function contact

output (Normally open)

MB Multi-function contact

output (Normally
closed)

MC Multi-function contact

output common

AM Analog monitor output Set by parameter n44
AC Analog monitor output

common

Set by parameter n36
(Reverse/Stop)

Set by parameter n37
(External fault: Normal­ly open)

Set by parameter n38
(Fault reset)

Set by parameter n39
(Multi-step reference 1)

Common for S1
through S5

DC power supply for
frequency reference
use

Input terminal for fre­quency reference use

Common for frequency
reference use

Set by parameter n40
(during running)

Common for MA and
MB use

(Output frequency)
Common for AM use

Photocoupler
8 mA at 24 VDC

20 mA at 12 VDC

0 to 10 VDC (20 kΩ)

Relay output
1 A max. at 30 VDC
1 A max. at 250 VAC

2 mA max. at 0 to
10 VDC

Note Functions in parentheses are default settings.

2-13

Design Chapter 2

H Selecting Input Method

•Switches

SW7 and SW8, both of which are located above the control circuit terminals,
are used for input method selection.
Remove the front cover and optional cover to use these switches.

Selector
Control circuit

terminal block

D Selecting Sequence Input Method

•By using SW7, NPN or PNP input can be selected as shown below.

S1 to 5

2-14

S1 to 5

24 VDC

Design Chapter 2

D Selecting Frequency Reference Input Method

•By using SW8, frequency reference voltage or current input can be selected.
Parameter
input method.

settings are required together with the selection of the frequency reference

Frequency reference input

method

SW8 setting Frequency reference

selection (parameter n03)

Voltage input V (OFF) Set value 2
Current input I (ON) Set value 3 or 4

2-2-3 Standard Connections

DC reactor
(optional)

Noise Filter

3-phase 200 VAC
Single-phase 200 VAC
(see note 1)

Forward/Stop

Multi-function
Multi-function input 2 (S3)
Multi-function input 3 (S4)

Multi-function input 4 (S5)

input 1 (S2)

Multi-function contact output
NO

NC
Common

Sequence input common
Frequency reference power

supply 20 mA at +12 V

FREQ
adjuster

Frequency reference input
Frequency reference common

Note 1. Connect
Note 2. The

braking resistor cannot be connected because no braking transistor is

corporated.

single-phase 200 V

AC to

Analog monitor output

Analog monitor output common

terminals R/L1 and S/L2 of the 3G3JV

-ABj.
in

2-15

-

Design Chapter 2

D Example of 3-wire Sequence Connections

Stop
switch
(NC)

RUN
switch
(NO)

Direction switch

RUN input (Operates with the stop switch and RUN switch closed.)
Stop input (Stops with the stop switch opened.)

Forward/Stop reference (Forward with the direction switch opened
and reverse with the direction switch closed.)

Sequence input common

Note Set parameter n37 for 3-wire sequence input.

2-16

Design Chapter 2
2-2-4 Wiring around the Main Circuit

H Wire

Size, T

erminal Screw, Screw T

ightening T

orque, and

Molded-case Circuit Breaker Capacities

•For the main circuit and ground, always use 600-V polyvinyl chloride
(PVC) cables.

any cable is long and may cause voltage drops, increase the wire size according to

•If
the cable length.

D 3-phase 200-VAC Model

Model

3G3JV-

A2001

A2002

Terminal symbol Termi-

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

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

Screw

nal

screw

M3.5 0.8 to 1.0 0.75 to 2 2 5

M3.5 0.8 to 1.0 0.75 to 2 2 5

tighten-

ing

torque

(NSm)

Wire

size

(mm

2

)

Recom-

mended

wire

size

2

(mm

)

Molded-

case

circuit

breaker

capac-

ity (A)

A2004

A2007

A2015

A2022

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

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

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

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

M3.5 0.8 to 1.0 0.75 to 2 2 5

M3.5 0.8 to 1.0 0.75 to 2 2 10

M3.5 0.8 to 1.0 2 to 5.5 2 20

M3.5 0.8 to 1.0 2 to 5.5 3.5 20

2-17

Design Chapter 2

D Single-phase 200-VAC Model

Model

3G3JV-

AB001

AB002

AB004

AB007

AB015

Terminal symbol Termi-

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

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

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

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

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

Terminal

nal

screw

M3.5 0.8 to 1.0 0.75 to 2 2 5

M3.5 0.8 to 1.0 0.75 to 2 2 5

M3.5 0.8 to 1.0 0.75 to 2 2 10

M3.5 0.8 to 1.0 2 to 5.5

M3.5 0.8 to 1.0 2 to 5.5

torque

(NSm)

Wire

size

(mm

2

)

Recom-

mended

wire

size

2

(mm

3.5
2

5.5
2

breaker

)

20

20

Circuit
capac-

ity (A)

2-18

Design Chapter 2

H Wiring on the Input Side of the Main Circuit

D Installing a Molded-case Circuit Breaker

Always
molded case circuit breaker (MCCB) suitable to the Inverter.

•Choose an MCCB with a capacity of 1.5 to 2 times the Inverter’s rated current.

•For the MCCB’s time characteristics, be sure to consider the Inverter’s overload

protection (one minute at 150% of the rated output current).

•If
a
the following diagram.

connect the power input terminals (R/L1, S/L2, and T/L3) and power supply via a

the MCCB is to be used in common among multiple Inverters, or other devices, set up
sequence such that the power supply will be turned of

Power
supply

3-phase/Single­phase 200 VAC

f by a fault output, as shown in

Inverter

Fault output
(NC)

D Installing a Ground Fault Interrupter

Inverter
ated.

general, a leakage current of approximately 100 mA will occur for each Inverter (when

In
the power cable is 1 m) and approximately 5 mA for each additional meter of power
cable.

Therefore,
which
mans and excludes high-frequency leakage current.

outputs use high-speed switching, so high-frequency leakage

current is gener

at the power supply input area, use a special-purpose breaker for Inverters,

detects only the

leakage current in the frequency range that is hazardous to hu

-

-

2-19

Design Chapter 2

•For

the special-purpose breaker for Inverters, choose a ground fault interrupter with a

sensitivity amperage of at least 10 mA per Inverter.

•When
tivity
more.

using a

amperage of 200 mA or more per Inverter and with an operating time of 0.1 s or

general leakage breaker

, choose a ground fault interrupter with a sensi

D Installing a Magnetic Contactor

If

the power supply of the main circuit is to be shut of

netic contactor can be used instead of a molded-case circuit breaker.
When

load
stop.

•A

•When

a magnetic contactor is installed on the primary side of the main circuit to stop a

forcibly, however

load can be started and stopped by opening and
the primary side. Frequently opening and closing the magnetic contactor, however,
may cause the Inverter to break down.

the Inverter is operated with

performed after recovery from a power interruption.

, the regenerative braking does not work and the load coasts to a

the Digital Operator

f because of the sequence, a mag

closing the magnetic contactor on

, automatic operation cannot be

D Connecting Input Power Supply to the Terminal Block

Input

power supply can be connected
phase
and R/L3).

sequence of input power supply is irrelevant to the phase sequence (R/L1, S/L2,

to any terminal on the terminal block because the

-

-

D Installing an AC Reactor

If

the

Inverter is connected to a large-capacity power transformer (660 kW or more) or

the

phase advance capacitor is switched, an excessive peak current may flow

the input power circuit, causing the converter unit to break down.
To prevent this, install an optional AC reactor on the input side of the Inverter.
This also improves the power factor on the power supply side.

D Installing a Surge Absorber

Always
inductive
solenoid, and magnetic brakes.

2-20

use a surge absorber or diode for the inductive loads near the Inverter

loads

include magnetic contactors, electromagnetic relays, solenoid valves,

through

. These

Design Chapter 2

D Installing a Noise Filter on the Power Supply Side

Install
verter.

Wiring Example 1

a Noise Filter to eliminate noise transmitted between the power line and the In

-

Power
supply

3G3IV-PHF

Noise
Filter

3G3JV

SYSDRIVE

Programmable
Controller

Other controllers

Note Use a special-purpose Noise Filter for the SYSDRIVE 3G3JV.

Wiring Example 2

Power
supply

General­purpose
noise

filter

3G3JV

SYSDRIVE

Programmable
Controller

Note

Power
supply

General­purpose
noise

filter

Do not use any general-purpose noise filter

Other controllers

3G3JV

SYSDRIVE

Programmable
Controller

Other controllers

. No general-purpose

effectively suppress noise generated from the Inverter.

noise filter can

2-21

Design Chapter 2

H Wiring on the Output Side of the Main Circuit

D Connecting the Terminal Block to the Load

Connect output terminals U/T1, V/T2, and W/T3 to motor lead wires U, V, and W.
Check

the
forward command.

that the motor rotates forward with the forward command. Switch over any two

output terminals to each

other and reconnect if the motor rotates in reverse with the

of

D Never Connect a Power Supply to Output Terminals

Never connect a power supply to output terminals U/T1, V/T2, or W/T3.
If

voltage is applied to the output terminals, the internal circuit of the Inverter will be

aged.

dam

-

D Never Short or Ground Output Terminals

If

the output terminals are touched with bare hands or the output wires come into contact

with

the Inverter casing, an electric shock or

ardous.
Also, be careful not to short the output wires.

grounding will occur

. This is extremely haz

-

D Do not Use a Phase Advancing Capacitor or Noise Filter

Never connect a phase advance capacitor or LC/RC Noise Filter to the output circuit.
Doing so will result in damage to the Inverter or cause other parts to burn.

D Do not Use an Electromagnetic Switch of Magnetic Contactor

Do not connect an electromagnetic switch of magnetic contactor to the output circuit.
If

a load is connected to the Inverter during running, an inrush current will actuate

overcurrent protective circuit in the Inverter.

the

D Installing a Thermal Relay

The Inverter has an electronic thermal protection function to protect the motor from
overheating.
polar

motor
motor and set n33 to 2 (no thermal protection).

this case, program the sequence so that the magnetic contactor on the input side of

In
the main circuit is turned off by the contact of the thermal relay.

If, however

is used, always install a thermal relay (THR) between the Inverter and the

, more than one motor is operated with one inverter

or a multi-

2-22

Design Chapter 2

D Installing a Noise Filter on the Output Side

Connect
tion noise.

a Noise Filter to the output side of the Inverter to reduce radio noise and

induc

-

Power
supply

Signal line

Induction Noise: Electromagnetic

3G3JV

SYSDRIVE

induction generates noise

3G3IV-PLF

Noise
Filter

Induction noise Radio noise

Controller

AM radio

on the signal line, caus

ing the controller to malfunction.

Radio Noise: Electromagnetic waves from the Inverter and cables cause the

broadcasting radio receiver to make noise.

D Countermeasures against Induction Noise

As

described previously
ing generated on the output side. Alternatively, cables can be routed through a
grounded

metal pipe to prevent induction noise. Keeping the metal

away from the signal line considerably reduces induction noise.

, a Noise Filter can be used to prevent induction noise from be

pipe at least 30 cm

-

-

Power supply

3G3JV

SYSDRIVE

Signal line

Metal pipe

30 cm min.

Controller

2-23

Design Chapter 2

D Countermeasures against Radio Interference

Radio
duce
Inverter in a totally enclosed steel box.

The cable between the Inverter and the motor should be as short as possible.

noise is generated from the Inverter as well as the input and output lines. T

o re

radio noise, install Noise Filters on both input and output sides, and also install the

Steel box

-

Power supply

Noise
Filter

3G3JV

SYSDRIVE

Noise
Filter

Metal pipe

D Cable Length between Inverter and Motor

If

the cable between

rent

will increase, causing the Inverter output current to increase as well. This may af

peripheral devices.

prevent

To

this, adjust the carrier frequency (set in n46) as shown in the table below

details, refer to the parameter settings.

Cable length 50 m max. 100 m max. More than 100 m
Carrier frequency 15 kHz max. 10 kHz max. 5 kHz max.

the Inverter and the motor is long, the high-frequency leakage cur

-

fect

. For

2-24

Design Chapter 2

H Ground Wiring

•Always

or less.

•Do

tools.
Always use a

•

ment and minimize the length of the ground wire.
Leakage current flows through the Inverter. Therefore, if the distance between the
ground
nal of the Inverter will become unstable.

•When using more than one Inverter, be careful not to loop the ground wire.

use the

not share the ground wire

electrode and the ground terminal

ground terminal of the 200-V Inverter with a ground resistance of 100

with other devices such as welding machines or power

ground

wire that complies with technical standards on electrical equip

is too long, the potential on the ground termi

Ω

-

-

2-25

Design Chapter 2

H Countermeasures against Harmonics

With

the continuing development of electronics, the
ics from industrial machines has been causing problems recently.
The

Ministry of International T

in

September 1994 for the suppression of harmonics from electrical house

hold

appliances and electrical equipment in

rade and Industry provided some guidelines

Japan. Since then, the prob
lem has been drawing considerable attention.
Refer

to the following information for the definition of
monic currents with voltages) and countermeasures against the genera­tion of harmonics from the Inverter.

D Harmonics
Definition

Harmonics consist of electric power produced from AC power and alternating at fre­quencies that are integral multiples of the frequency of the AC power.

generation of harmon

harmonics (i.e., har

-

-

-

-

The

following frequencies are harmonics of a 60- or 50-Hz commercial power supply
Second harmonic:
Third harmonic:

120 (100) Hz
180 (150) Hz

Second harmonic (120 Hz)

Basic frequency (60 Hz)

Third harmonic (180 Hz)

Problems Caused by Harmonics Generation

The

waveform of the commercial power supply will be distorted if the commercial power
supply
will malfunction or generate excessive heat.

contains excessive harmonics. Machines with such a commercial power supply

Basic frequency (60 Hz) Third harmonic (180 Hz)

.

2-26

Distorted current wave
form

Design Chapter 2

D Causes of Harmonics Generation

•Usually, electric

supply into DC power.
Such

AC power

tween DC and AC.

Obtaining DC from AC Using Rectifiers and Capacitors

DC

voltage is obtained by converting AC voltage into a pulsating one-side voltage with

rectifiers

and smoothing the pulsating one-side voltage with capacitors. Such AC cur

rent, however, contains harmonics.

Inverter

The Inverter as well as normal electric machines has an input current containing har­monics
comparatively
er is higher than that of any other electric machine.

because the Inverter

machines have built-in circuitry that converts commercial AC power

, however

, contains

harmonics due to the dif

ference in current flow be

converts AC into DC. The output current of the Inverter is

high. Therefore, the ratio of harmonics in the output current of the Invert

-

-

-

A current flows into the
capacitors. The current
is different from the
voltage in waveform.

Voltage

Time

Rectified

Voltage

Time

Smoothed

Voltage

Time

Current

Time

2-27

Design Chapter 2

D Countermeasures with Reactors against Harmonics Generation
DC/AC Reactors

The

DC reactor and
and greatly.

AC reactor suppress harmonics and currents that change suddenly

DC reactor suppresses harmonics better than the AC reactor

The

. The DC reactor used

with the AC reactor suppresses harmonics more effectively.

input power factor of the Inverter is improved by

The

suppressing the harmonics of the

input current of the Inverter.

Connection

Connect
the

power supply to the Inverter and making sure that the charge indicator of the Inverter

turns off.
Do not touch the internal circuitry of the Inverter in operation, otherwise an electric

shock or burn injury may occur.

the DC reactor to the internal DC power supply of the Inverter after shutting of

Wiring Method

[With

DC Reactor]

DC reactor
(optional)

f

Power supply

3-phase 200 VAC
or single-phase
200 VAC

[With DC and AC Reactors]

Power supply

3-phase 200 VAC

or single-phase

200 VAC

DC reactor
(optional)

AC reactor
(optional)

SYSDRIVE
3G3JV

SYSDRIVE
3G3JV

2-28

aocs

o yet y e e s e ded cab e

Design Chapter 2

Reactor Effects

Harmonics
as shown in the following table.

are ef

fectively suppressed when the DC reactor is used with the AC reactor

Harmonics

suppression

method

No reactor 65 41 8.5 7.7 4.3 3.1 2.6 1.8
AC reactor 38 14.5 7.4 3.4 3.2 1.9 1.7 1.3
DC reactor 30 13 8.4 5 4.7 3.2 3.0 2.2
DC and AC

reactors

5th

har-

monic

28 9.1 7.2 4.1 3.2 2.4 1.6 1.4

7th

har-

monic

Harmonic generation rate (%)

11th

har-

monic

13th

har-

monic

17th

har-

monic

monic

19th

har-

23rd

har-

monic

2-2-5 Wiring Control Circuit Terminals

A control signal line must be 50 m maximum and separated from power
lines.
The

frequency reference must be input into the

twisted-pair wires.

H Wiring Sequence I/O Terminals

Inverter through shielded,

25th
har-

monic

Wire

the sequence input terminals (S1 to S5 and SC) and multi-function contact output

terminals (MA, MB, and MC) as described below.

D Wires Used

Wire type Wire size Wire to be used

Single wire 0.5 to 1.25 mm
Stranded wire 0.5 to 0.75 mm

2
2

Polyethylene-shielded cable

2-29

Design Chapter 2

D Solderless Terminals for Control Circuit Terminals

The use of solderless terminals for the control circuit terminals is recommended be­cause solderless terminals are easy to connect securely.

Note When using the following solderless terminal, make sure that the wire size is

0.5 mm

2

.

1.0 dia.

Model: Phoenix Contact’s A1 0.5-8 WH

2.6 dia.

(Size: mm)

D Wiring Method

1. Loosen the terminal screws with a thin-slotted screwdriver.

2. Insert the wires from underneath the terminal block

3. Tighten the terminal screws firmly to a torque of 0.5 NSm.

Note 1. Always

power cables.

Note 2. Do

not solder the wires to the control

tact well with the control circuit terminals if the wires are soldered.

Note 3. The

end of each wire connected to the control circuit terminals must be stripped

for approximately 5.5 mm.

separate the control

Thin-slotted screwdriver

signal line from the main circuit cables and other

circuit terminals. The wires may not con

Control circuit
terminal block

-

Strip the end for 5.5 mm
if no solderless terminal
is used.

Wires

2-30

Solderless
terminal or wire
without soldering

Note Applying a torque of greater

than 0.5 NSm may damage the
terminal block. If the tightening
torque is insufficient, however,
wires may be disconnected.

o yet y e e s e ded cab e

Design Chapter 2

H Wiring Frequency Reference Input Terminals

Wire

the frequency reference input terminals FR and FC as described below for execut

frequency references with

ing
ternal power supply.

D Wires Used

Use

shielded, twisted-pair wires for wiring in order to prevent the Inverter from malfunc

tioning due to noise.

Wire type Wire size Wire to be used

Single wire 0.5 to 1.25 mm
Stranded wire 0.5 to 0.75 mm

D Solderless Terminals for Frequency Reference Input Terminals

The use of solderless terminals for the frequency reference input terminals is recom­mended because solderless terminals are easy to connect securely.

the D/A Unit for digital-to-analog data conversion or ex

2
2

Polyethylene-shielded cable
for measurement use

-

-

-

Note Make

sure

that the wire size is 0.5 mm2 when using the following solderless termi

nal.

1.0 dia.

Model: Phoenix Contact’s A1 0.5-8 WH

2.6 dia. (Size: mm)

D Wiring Method

•The

wiring method of the frequency reference input terminals is the

control circuit terminals.

•Always

cables.

separate the control signal line from the main

circuit cables and other power

-

same as that of the

•Connect

the shield to the ground terminal of the

the load.

•Cover

the shield with tape so that the shield will

wires or machines.

Inverter

. Do not connect the shield to

not come into contact with other signal

2-31

Design Chapter 2
2-2-6 Conforming to EC Directive

The following description provides the wiring method of the Inverter to
meet

DC Directive requirements. If the following requirements
tisfied, the whole equipment incorporating the Inverter will need further
confirmation.

H Standard Connection

D Main Circuit Terminals

are not sa

-

Line breakers

Noise Filter

3-phase 200 VAC or
single-phase 200 VAC

D Control Circuit Terminals

Forward/Stop

Multi-function input 1 (S2)
Multi-function input 2 (S3)
Multi-function input 3 (S4)

Multi-function input 4 (S5)

Sequence

input common

Clamp core

Multi-function

NO
NC
Common

Analog-monitor output

contact output

Frequency reference power
supply at +12 V

FREQ
adjuster

Frequency reference input
Frequency reference common

Note I/O signals can be connected to a single shielded cable.

2-32

Analog monitor output common

Design Chapter 2

D Wiring the Power Supply

Make sure that the Inverter and Noise Filter are grounded together.

•Always

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

a dedicated Noise Filter.

•Reduce the length of the ground wire as much as possible.

•Locate

the Noise Filter as close as possible to the Inverter

. Make sure that the cable

length between the Noise Filter and the Inverter does not exceed 40 cm.

•The following Noise Filters are available (all footprint type).

3-phase 200-VAC Noise Filter

Inverter 3-phase 200-VAC Noise Filter

Model 3G3JV- Model 3G3JV- Rated current (A)

A2001/A2002/A2004/A2007 PFI2010-E 10
A2015/A2022 PFI2020-E 20

Single-phase 200-VAC Noise Filter

Inverter Single-phase 200-V Noise Filter

Model 3G3JV- Model 3G3JV- Rated current (A)

AB001/AB002/AB004 PFI1010-E 10
AB007/AB015 PFI1020-E 20

D Connecting a Motor to the Inverter

•When

•Reduce

er
and the motor does not exceed 20 cm.
ter) close to the output terminals of the Inverter.

Clamp Filter 2CAT3035-1330 TDK

connecting a motor to the Inverter

the length of

the cable as short as possible and ground the shield on the Invert

, be sure to use a cable with a braided shield.

side as well as the motor side. Make sure that the cable length between the Inverter

Furthermore, connect a clamp core (Clamp Fil

Product Model Manufacturer

D Wiring a Control Cable

•Be sure to connect a cable with a braided shield to the control circuit terminals.

•Ground the shield on the Inverter side only.

-

-

2-33

30

30

Design Chapter 2

D Grounding the Shield

In

order to

connected to the ground plate as shown below.

ground the shield securely

, it is recommended that a cable clamp be directly

Ground plate

Shield

Cable clamp

Cable

H LVD Conformance

•Always connect the Inverter and power supply via a molded case circuit breaker
(MCCB)
from short-circuiting.

•Use one MCCB per Inverter.

•Select a suitable MCCB from the following table.

suitable to the Inverter for protecting the Inverter from damage that may result

200-V Models

Inverter MCCB (Mitsubishi Electric)

Model 3G3JV- Type Rated current (A)

A2001
A2002
A2004 5
A2007 10
A2015 20
A2022 20
AB001
AB002
AB004 10
AB007 20
AB015 20

The frequency reference power supply (FS) of the Inverter is of basic insulation
construction.

When connecting the Inverter to peripheral devices, be sure to increase

the degree of insulation.

NF30

NF30

5
5

5
5

2-34

Preparing for
Operation and
Monitoring

3-1 Nomenclature
3-2 Outline of Operation

3

Chapter 3

Preparing for Operation and Monitoring Chapter 3
3-1 Nomenclature

Data display

Keys

Appearance Name Function

Data display Displays relevant data items, such as frequency

reference, output frequency, and parameter set
values.

FREQ adjuster Sets the frequency reference within a range

between 0 Hz and the maximum frequency.

FREF indicator The frequency reference can be monitored or set

while this indicator is lit.

FOUT indicator The output frequency of the Inverter can be

monitored while this indicator is lit.

IOUT indicator The output current of the Inverter can be

monitored while this indicator is lit.

MNTR indicator The values set in U01 through U10 are

monitored while this indicator is lit.

F/R indicator The direction of rotation can be selected while

this indicator is lit, when operating the Inverter
with the RUN Key.

LO/RE indicator The operation of the Inverter through the Digital

Operator or according to the parameters set is
selectable while this indicator is lit.

Indicators
Setting/Monitor item indicators

FREQ adjuster

3-2

Note This status of this indicator can be only

monitored
Any RUN command input is ignored while
this indicator is lit.

PRGM indicator The parameters in n01 through n79 can be set or

monitored while this indicator is lit.

Note While

rameters
some

while the Inverter

is in operation.

the Inverter is in operation, the pa

can be only

monitored and only

parameters can be changed. The
RUN command input is ignored while
this indicator is lit.

-

Preparing for Operation and Monitoring Chapter 3

Appearance FunctionName

Mode Key Switches the setting and monitor item indicators

in sequence.
Parameter setting being made is canceled if this

key is pressed before entering the setting.

Increment Key Increases multi-function monitor numbers,

parameter numbers, and parameter set values.

Decrement Key Decreases multi-function monitor numbers,

parameter numbers, and parameter set values.

Enter Key Enters multi-function monitor numbers,

parameter numbers, and internal data values
after they are set or changed.

RUN Key Starts the Inverter running when the 3G3FV is in

operation with the Digital Operator.

STOP/RESET
Key

Stops the Inverter unless n06 is not set to
disable the STOP Key.

3-3

Preparing for Operation and Monitoring Chapter 3
3-2 Outline of Operation

H Selecting Indicators

Whenever

the Mode Key is pressed, an indicator is lit in sequence begin
ning with the FREF indicator. The data display indicates the item corre­sponding to the indicator selected.
The

FOUT or
Inverter
cator

is turned of

will be lit by turning the Inverter on again if the Inverter is turned of

IOUT indicator will be lit by turning the Inverter on again if the

f while the FOUT or IOUT indicator is lit. The FREF indi

while an indicator other than the FOUR or IOUT indicator is lit.

Power On

FREF (Frequency Reference)

Monitors and sets the frequency reference.

FOUT (Output Frequency)

Monitors the output frequency.
Note This

IOUT (Output Current)

Monitors the output current.
Note This

indicator will be lit by turning the Inverter on

if the Inverter is turned off while this indicator is lit.

indicator will be lit by turning the Inverter on again

if the Inverter is turned off while this indicator is lit.

again

-

­f

3-4

MNTR (Multi-function Monitor)

Monitors the values set in U01 through U10.

F/R (Forward/Reverse Rotation)

Selects the direction of rotation.

LO/RE (Local/Remote)

Selects the operation of the Inverter through the Digital
Operator or according to the parameters.

PRGM (Parameter Setting)

Monitors or sets the values in n01 through n79.

The FREF indicator is lit again.

Preparing for Operation and Monitoring Chapter 3

H Example of Frequency Reference Settings

Key

sequence

Note 1.

The Enter Key need not be pressed when performing the setting for
frequency

Indicator Display

example

Power On
Note If the FREF indicator has not been lit,

press
FREF indicator is lit.

Use the Increment or Decrement Key to set
the frequency reference.

The data display will flash while the
frequency reference is set. (see note 1)

Press the Enter Key so that the set value will
be entered and the data display will be lit.
(see note 1)

Explanation

the Mode Key repeatedly until the

reference will change when the set value is changed with the Incre

ment or Decrement Key while the data display is continuously lit.

Note 2. The frequency reference can be set in either of the following cases.

n03

S Parameter

for frequency reference selection is set to 1 (i.e., frequency refer

ence 1 is enabled) and the Inverter is in remote mode.

n08.

The

-

-

S Parameter

n07 for frequency selection in local mode is set to 1 (i.e., the Digital

Operator is enabled) and the Inverter is in local mode.

S Frequency references 2 through 8 are input for multi-step speed operation.

Note 3. The frequency reference can be changed, even during operation.

3-5

Preparing for Operation and Monitoring Chapter 3

H Example of Multi-function Display

Key

sequence

Indicator Display Explanation

Power On
Press the Mode Key repeatedly until the

MNTR indicator is lit.
U01 will be displayed.

Use the Increment or Decrement Key to
select the monitor item to be displayed.

Press the Enter Key so that the data of the
selected monitor item will be displayed.

The monitor number display will appear again
by pressing the Mode Key.

3-6

U06

put te a

U0

Output te a
U09

o og ( ost

Preparing for Operation and Monitoring Chapter 3

D Status Monitor

Item Display Display

Function

unit

U01 Frequency

Hz Monitors the frequency reference. (Same as FREF)

reference

U02 Output

Hz Monitors the output frequency. (Same as FOUT)

frequency
U03 Output current A Monitors the output current. (Same as IOUT)
U04 Output voltage V Monitors the internal output voltage reference value

of the Inverter.

U05 DC bus voltage V Monitors the DC voltage of the internal main circuit of

the Inverter.

U06 Input terminal

---

Shows the ON/OFF status of inputs.

status

: Input ON : No input

Terminal S1: Forward/Stop
Terminal S2: Multi-function input 1 (S2)
Terminal S3: Multi-function input 2 (S3)
Terminal S4: Multi-function input 3 (S4)

Terminal S5: Multi-function input 4 (S5)

U07 Output terminal ---

Not
used

Shows the ON/OFF status of outputs.

status

Not
used

U09 Error log (most

---

Displays the latest error.

recent one)

Error

U10 Software No. --- OMRON use only.

: Closed : Open

Terminal MA: Multi-function
contact output

3-7

Preparing for Operation and Monitoring Chapter 3

H Example of Forward/Reverse Selection Settings

Key

sequence

Indicator Display

example

Explanation

Press the Mode Key repeatedly until the F/R
indicator is lit.

The present setting will be displayed.
For: Forward; rEv: Reverse

Use the Increment or Decrement Key to
change the direction of motor rotation. The
direction of motor rotation selected will be
enabled when the display changes after the
key is pressed.

Note The direction of motor rotation can be changed, even during operation.

H Example of Local/Remote Selection Settings

Key

sequence

Note 1. Local

Indicator Display

example

Press the Mode Key repeatedly until the
LO/RE indicator is lit.

The present setting will be displayed.
rE: Remote; Lo: Local

Use the Increment or Decrement Key to set
the Inverter to local or remote mode. The
selection will be enabled when the display
changes after the key is pressed.

Explanation

or remote selection is possible only when the Inverter is not in operation.

The present setting can be monitored when the Inverter is in operation.

Note 2. Local or remote settings in multi-function input terminals can be changed

through the multi-function input terminals only.

Note 3. Any RUN command input will be ignored while the LO/RE indicator is lit.

3-8

Preparing for Operation and Monitoring Chapter 3

H Example of Parameter Settings

Cancels set data.

In approximately 1 s.

Key

sequence

In
approximately
1 s.

Indicator Display

example

Note 1. To cancel the set value, press

will be displayed.

Explanation

Power On
Press the Mode Key repeatedly until the

PRGM indicator is lit.
Use the Increment or Decrement Key to set

the parameter number.
Press the Enter Key.

The data of the selected parameter number
will be displayed.

Use the Increment or Decrement Key to set
the data. At that time the display will flash.

Press the Enter Key so that the set value will
be entered and the data display will be lit.
(see note 1)

The parameter number will be displayed.

the Mode Key instead. The parameter number

Note 2. There

Refer

the

data display will not change

are parameters that cannot be changed while

the Inverter is in operation.

to the list of parameters. When attempting to change such parameters,

by pressing the Increment or Decrement Key

3-9

.

Preparing for Operation and Monitoring Chapter 3

3-10

Chapter 4

Test Run

4-1 Procedure for Test Run
4-2 Operation Example

4

Test Run Chapter

4

WARNING Turn

!

ON the input power supply only after mounting the front

cover
terminal covers, bottom cover, Operator, and optional items. Not
doing so may result in electrical shock.

WARNING Do not remove the front cover, terminal covers, bottom cover,

!

Operator, or optional items while the power is being supplied. Not
doing so may result in electrical shock.

WARNING Do

!

not operate the Operator or switches with wet hands. Doing so

may result in electrical shock.

WARNING Do not touch the inside of the Inverter. Doing so may result in

!

electrical shock.

WARNING Do

!

not come close to the machine when using the error retry function

because

the machine may

abruptly start when stopped by an alarm.

Doing so may result in injury.

,

WARNING Do not come close to the machine immediately after resetting

!

momentary power interruption to avoid an unexpected restart (if
operation
after

momentary

is set to be continued in the

power interruption is reset). Doing so may result in

processing selection function

injury.

WARNING Provide

!

on

the Operator is valid only when function settings are performed.

a separate emergency stop switch because the STOP Key

Not doing so may result in injury.

WARNING Be

!

sure

confirm that the RUN signal is turned OFF before turning ON
the power supply, resetting the alarm, or switching the
LOCAL/REMOTE

selector

. Doing

so while the RUN signal is turned

ON may result in injury.

Caution Be

!

sure to confirm permissible ranges of motors and machines be

fore operation because the Inverter speed can be easily changed

low to high. Not doing so may result in damage to the product.

from

-

Caution Provide a separate holding brake when necessary. Not doing so

!

may result in injury.

4-2

Test Run Chapter

4

Caution Do

!

Caution Do

!

not perform a signal check during operation. Doing so may result

in injury or damage to the product.

not carelessly change settings. Doing so may result in injury or

damage to the product.

4-3

Test Run Chapter

4-1 Procedure for Test Run

1. Installation and Mounting

4

Install
that the installation conditions are met.

2. Wiring and Connection

Connect to the power supply and peripheral devices. Refer to page 2-7. Select
peripheral devices which meet the specifications and wire correctly.

3. Power Connection

Carry

 Always

 Make

 Ensure

 Set the motor to no-load status (i.e., not connected to the mechanical system).

the Inverter according to the installation conditions. Refer to page

out the following pre-connection checks before turning on the power supply

ensure that a power supply to the correct voltage is used and that the power

input terminals (R/L1, S/L2, and T/L3) are wired correctly.

3G3JV-A2: 3-phase 200 to 230 VAC
3G3JV-AB: Single-phase 200 to 240 VAC (Wire R/L1 and S/L2)

sure that the motor output terminals (U/T1, V/T2, and W/T3) are connected to

the motor correctly.

that the control circuit terminals and the control device are wired correctly

Make sure that all control terminals are turned off.

2-2. Ensure

.

.

 Having conducted the above checks, connect the power supply.

4. Check the Display Status

Check to be sure that there are no faults in the Inverter.
 If the display at the time the power is connected is normal, it will read as follows:

RUN indicator: Flashes
ALARM indicator: Off
Setting/Monitor indicators: FREF, FOUT, or IOUT is lit.
Data display: Displays the corresponding data of the indicator that is lit.

 When a fault has occurred, the details of the fault will be displayed. In that case,

refer to

5. Initializing Parameters

Initialize the parameters.
 Set n01 to 8 for initialization in 2-wire sequence.

6. Setting Parameters

Set the parameters required for a test run.
 Set

loading.

Chapter

the rated motor current in order to prevent the motor from burning due to over

7 Maintenance Operations

and take necessary remedies.

-

4-4

Test Run Chapter

7. No-load Operation

Start the no-load motor using the Digital Operator.
 Set the frequency reference using the Digital Operator and start the motor using

key sequences.

8. Actual Load Operation

Connect the mechanical system and operate using the Digital Operator.

4

 When

system to the motor and operate using the Digital Operator.

9. Operation

Basic Operation:
Operation
page 5-1.

Advanced Operation:
Operation that uses PID control or other functions. Refer to page 6-1.

 For operation within standard parameters, refer to
 Refer

ous
torque detection, torque compensation, and slip compensation.

there are no dif

based on the basic settings required to start and stop the Inverter

to

Chapter

advanced functions, such as stall prevention, carrier frequency setting,

ficulties using the

5 Basic

Operation

no-load operation, connect the mechanical

Chapter

and

Chapter

6 Advanced Operation

. Refer to

5 Basic Operation

for the vari

over

.

-

-

4-5

Test Run Chapter

4-2 Operation Example

1 Power Connection

 Checkpoints before Connecting the Power Supply

4

•Check
nals (R/L1, S/L2, and T/L3) are connected to the motor correctly.

•Make
motor correctly.

•Ensure that the control circuit terminals and the control device are wired correctly.
Make sure that all control terminals are turned off.

•Set the motor to no-load status (i.e., not connected to the mechanical system).

that the power supply is of the correct voltage and that the motor output termi

3G3JV-A2: Three-phase 200 to 230 VAC
3G3JV-AB: Single-phase 200 to 240 VAC (Wire R/L1 and S/L2)

sure that the motor output terminals (U/T1, V/T2, and W/T3) are connected to the

 Connecting the Power Supply

•After conducting the above checks, connect the power supply.

2 Check the Display Status

•If the display is normal when the power is connected, it will read as follows:

-

Normal

RUN indicator: Flashes
ALARM indicator: Off
Setting/Monitor indicators: FREF, FOUT, or IOUT is lit.
Data display: Displays the corresponding data for the indicator that is lit.

•When

Chapter 7

4-6

a fault has occurred, the details of the fault will be displayed. In that

Maintenance

Fault

RUN indicator: Flashes
ALARM indicator: Lit (fault detection) or flashes (alarm detection)
Setting/Monitor indicators: FREF, FOUT, or IOUT is lit.
Data display: The fault code, such as UV1, is displayed. The display will differ de-

pending on the type of fault.

Operations

and take necessary action.

case, refer to

Test Run Chapter

3 Initializing Parameters

•Initialize the parameters using the following procedure.

•To initialize the parameters, set n01 to 8.

4

Key sequence Indicator Display

example

In approximately
1 s.

Power On
Press the Mode Key repeatedly until the

PRGM indicator is lit.
Press the Enter Key. The data of n01 will be

displayed.
Use the Increment or Decrement Key to set

n01 to 8. The display will flash.
Press the Enter Key so that the set value will

be entered and the data display will be lit.
The parameter number will be displayed.

Explanation

4 Setting the Motor Current Parameter

•Set

the motor current parameter in n32 in order to prevent the motor from burning

to overloading.

due

 Setting the Rated Motor Current

•Check

•This

(OL1).
burning.

Setting
range

Note 1. The standard rated current of the maximum applicable motor is the default

Note 2. Motor overload detection (OL1) is disabled by setting the parameter to 0.0.

the rated current on the motor nameplate and set the motor current parameter

parameter is used

for the electronic thermal function for motor overload detection

By setting the correct parameter, the overloaded motor will be protected from

n32 Rated Motor Current Changes during

operation

0.0% to 120% (A) of rated
output current of the Inverter

Unit of
setting

0.1 A Default setting (see

rated motor current.

No

note 1)

.

4-7

Test Run Chapter

4

Key sequence Indicator Display

example

In approximately
1 s.

5 No-load Operation

•Start

the no-load motor (i.e., not connected to the mechanical system) using the Digital

Operator.

Explanation

Displays the parameter number.
Use the Increment or Decrement Key until n32

is displayed.
Press the Enter Key. The data of n32 will be

displayed.
Use the Increment or Decrement Key to set

the rated motor current. The display will flash.
Press the Enter Key so that the set value will

be entered and the data display will be lit.
The parameter number will be displayed.

Note

Before operating the Digital Operator

, check that the FREQ adjuster is set to MIN.

 Forward/Reverse Rotation with the Digital Operator

Key

sequence

Indicator Display

example

Explanation

Monitors the frequency reference.
Press the RUN Key. The RUN Indicator will be lit.
Turn the FREQ adjuster clockwise slowly.

The monitored frequency reference will be
displayed.

The motor will start rotating in the forward direction
according to the frequency reference.

Press the MODE Key to turn on the F/R indicator.
“For” will be displayed.

Use the Increment or Decrement Key to change the
direction of motor rotation. The direction of motor
rotation selected will be enabled when the display is
changed after the Key is pressed.

4-8

Test Run Chapter

4

•After

•Check that no faults have occurred in the Inverter during operation.

changing the frequency reference or the rotation direction, check that there is no

vibration or abnormal sound from the motor.

 Stopping the Motor

•On completion of operating the motor in the no-load state in the forward or reverse
direction, press the STOP/RESET Key. The motor will stop.

6 Actual Load Operation

•After

Note Before

checking the operation with the motor in

system and operate with an actual load.

operating the Digital Operator

no-load status, connect the mechanical

, check that the FREQ adjuster is set to MIN.

 Connecting the System

•After

confirming that the motor has stopped completely

tem.

, connect the mechanical sys

-

sure to tighten all the screws when fixing the motor axis in

•Be

the mechanical system.

 Operation Using the Digital Operator

•In

case a fault occurs during operation, make sure the Stop Key on the Digital Operator

is easily accessible.

•Use the Digital Operator in the same way as no-load operation.

•First set the frequency reference to a low speed of one tenth the normal operating

speed.

 Checking the Operating Status

•Having
ing smoothly at slow speed, increase the frequency reference.

•After
vibration
function monitor U03) to ensure that the output current is not becoming excessive.

checked that the operating direction is correct and that the machine is operat

changing the frequency reference or the rotation direction, check that there is no

or abnormal sound from the motor

. Check the monitor display (IOUT or multi-

-

4-9

Test Run Chapter

4

4-10

5

Chapter 5

Basic Operation

5-1 Initial Settings
5-2 V/f Control
5-3 Setting the Local/Remote Mode
5-4 Selecting the Operation Command
5-5 Setting the Frequency Reference
5-6 Setting the Acceleration/Deceleration

Time
5-7 Selecting the Reverse Rotation-prohibit
5-8 Selecting the Interruption Mode
5-9 Multi-function I/O
5-10 Analog Monitor Output

Basic Operation Chapter

This section explains the basic settings required to operate and stop the
Inverter.
The

settings of parameters described here will be suf
verter operations.
First,

make these basic settings, then skip to the explanations

functions, even when your application requires

cial
as

stall

prevention, carrier frequency setting, overtorque detection, torque

compensation, slip compensation. Refer to

.

tion

Chapter 6 Advanced Opera-

ficient for simple In

of those spe

special functions, such

-

-

5-1 Initial Settings

•The following initial settings are required.
Parameter Write-prohibit Selection/Parameter Initialization (n01): Set n01 to 1 so

that n01 through n79 can be set or displayed.

5

Rated
the parameter.

Motor Current (n32): Check the rated current on the motor nameplate and set

H Setting the Parameter Write-prohibit Selection/Parameter

Initialization (n01)

•Set n01 to 1 so that n01 through n79 can be set or displayed.

n01 Parameter Write-prohibit Selection/Parameter

Initialization

Setting
range

Note This parameter makes it possible to write-prohibit parameters, change the pa-

0, 1, 6, 8, 9 Unit of

setting

rameter set or displayed range, or initialize all parameters to default values.

1 Default setting 1

Set Values

Value Description

0 Only n01 can be displayed and set. The n02 through n79 parameters can be

displayed only.
1 The n01 through n79 parameters can be displayed and set.
6 Only the error log memory is cleared.
8 Enables the initialization of all parameters in 2-wire sequence so that the

parameters will return to default values.
9 Enables the initialization of all parameters in 3-wire sequence.

Changes during
operation

No

5-2

Basic Operation Chapter

5

H Setting the Rated Motor Current (n32)

Set

the rated motor

loading.
Check the rated current on the motor nameplate and set the parameter.

parameter is used for the electronic thermal function for motor overload detection

This
(OL1). By setting the correct parameter, the overloaded motor will be protected from
burning.

current (n32) in order to prevent the motor from burning due to over

-

n32 Rated Motor Current Changes during

operation

Setting
range

Note 1. The standard rated current of the maximum applicable motor is the default

Note 2. Motor overload detection (OL1) is disabled by setting the parameter to 0.0.

0.0% to 120% (A) of rated
output current of Inverter

rated motor current.

Unit of
setting

0.1 A Default setting (see

No

note 1)

5-3

Basic Operation Chapter

5

5-2 V/f Control

H Setting the V/f Patterns (n09 to n15)

•Set the V/f pattern so that the motor output torque is adjusted to the required load
torque.

3G3JV incorporates an automatic torque boost function. Therefore, a maximum of

• The
150%
system
teristic changes are required.

torque can be output at 3 Hz without changing

in trial

operation and leave the default settings as they are if no torque charac

the default settings. Check the

-

n09 Maximum Frequency (FMAX) Changes during

operation

Setting
range

n10 Maximum Voltage (VMAX) Changes during

Setting
range

n11 Maximum Voltage Frequency (FA) Changes during

Setting
range

n12 Middle Output Frequency (FB) Changes during

Setting
range

n13 Middle Output Frequency Voltage (VC) Changes during

Setting
range

50.0 to 400 (Hz) Unit of

setting

1 to 255 (V) Unit of

setting

0.2 to 400 (Hz) Unit of

setting

0.1 to 399 (Hz) Unit of

setting

1 to 255 (V) Unit of

setting

0.1 Hz
(see note)

1 V Default settings 200

0.1 Hz
(see note)

0.1 Hz
(see note)

1 V Default setting 12

Default setting 60.0

operation

operation
Default setting 60.0

operation
Default setting 1.5

operation

No

No

No

No

No

n14 Minimum Output Frequency (FMIN) Changes during

operation

Setting
range

n15 Minimum Output Frequency Voltage (VMIN) Changes during

Setting
range

5-4

0.1 to 10.0 (Hz) Unit of

setting

1 to 50 (V) Unit of

setting

0.1 Hz Default setting 1.5

operation

1 V Default setting 12

No

No

Basic Operation Chapter

5

Note Values

will be

set in 0.1-Hz increments if the frequency is less than 100 Hz and

1-Hz increments if the frequency is 100 Hz or greater.

Output
voltage (V)

•

The vertical-axis load or the load with high viscous friction may require high torque at

Note 1. Set the parameters so that

the
satisfied.
n14 x n12 < n11 x n09

Note 2. The

nored if parameters n14 and
n12 are the same in value.

Frequency (Hz)

following

value set in n13 will be ig

condition will be

-

low speed. If the torque is insufficient at low speed, increase the voltage in the low­speed

range by 1 V

, provided that no overload (OL1

or OL2) is detected. If an overload
is detected, decrease the set values or consider the use of an Inverter model with a
higher capacity.

required torque of fan or pump control increases in proportion to the square of the

•The
speed. By setting a quadratic V/f pattern to increase the voltage in the low-speed
range, the power consumption of the system will increase.

5-5

Basic Operation Chapter

5-3 Setting the Local/Remote Mode

The 3G3JV operates in local or remote mode. The following description
provides information on these modes and how to select them.

H Basic Concept

Operation mode Basic concept Description

Local The Inverter in a system

operates independently in
this mode so that the
Inverter can be checked
independently.

Remote The Inverter in a system

operates according to the
control signal of the host
controller.

Operation Command

Starts with the RUN Key of the Digital
Operator and stops with the
STOP/RESET Key.

Frequency Reference

Set with the Digital Operator or the FREQ
adjuster.

Set with frequency reference selection in
local mode in n07.

Operation Command

Selectable from two types and set in n02.

Frequency Reference

Selectable from five types and set in n03.

5

H Local/Remote Selection Methods

•The

following two selection methods are

mode.

S Select the mode with the LO/RE Key of the Digital Operator.

any one of multi-function inputs 1 through 4 (n36 through n39) to 17

S Set

Inverter to local mode with control input turned ON.

Note If

the above setting is made, mode selection with multi-function input will be

sible, but not with the Digital Operator.

available to set the Inverter to local or remote

to set the

pos

-

5-6

Basic Operation Chapter

5

5-4 Selecting the Operation Command

The following description provides information on how to input operation
commands
the Inverter.
Two types of command input
them according to the application.

H Selecting the Operation Mode (n02)

•Select the method of operation mode input to start or stop the Inverter.

•The following method is enabled in remote mode only. The command can be input

through key sequences on the Digital Operator.

to start or stop the Inverter or change the direction of rotation of

methods are available. Select either one of

n02 Operation Command Selection Changes during

operation

Setting
range

0, 1 Unit of

setting

1 Default setting 0

No

Set Values

Value Description

0 The RUN and STOP/RESET Keys of the Digital Operator are enabled.
1 Multi-function input in 2- or 3-wire sequence through the control circuit

terminals is enabled.

H Selecting the STOP/RESET Key Function (n06)

•When
Digital
enabled in local mode regardless of the setting in n02.

Setting
range

parameter n02 is set to 1, set whether or not to use the ST

Operator to stop the Inverter in remote mode. The ST

n06 STOP Key Function Selection Changes during

operation

0, 1 Unit of

setting

1 Default setting 0

OP/RESET Key of the

OP/RESET Key is always

No

Set Values

Value Description

0 The STOP/RESET Key of the Digital Operator is enabled.
1 The STOP/RESET Key of the Digital Operator is disabled. This setting is

available only when the Digital Operator is selected for operation command
input.

5-7

Basic Operation Chapter

5-5 Setting the Frequency Reference

5-5-1 Selecting the Frequency Reference

The

following description provides information on how to set the frequency
reference in the Inverter. Select the method according to the operation
mode.
Remote mode:Select
Local mode: Select

H Selecting the Frequency Reference (n03) in Remote Mode

•Select the input method of frequency references in remote mode.

and set one out of
and set one out of two frequency

five frequency references in n03.

references in n07.

5

•Five

frequency references are available in remote mode. Select one of them according

to the application.

n03 Frequency Reference Selection Changes during

operation

Setting
range

0 to 4 Unit of

setting

1 Default setting 0

No

Set Values

Value Description

0 The FREQ adjuster of the Digital Operator is enabled. (see note 1)
1 Frequency reference 1 (n21) is enabled.
2 The frequency reference control terminal (for 0- to 10-V input) is enabled.

(see note 2)

3 The frequency reference control terminal (for 4- to 20-mA current input) is

enabled. (see note 3)

4 The frequency reference control terminal (for 0- to 20-mA current input) is

enabled. (see note 3)

Note 1. The

maximum frequency (FMAX) is set when the FREQ adjuster is set to

MAX.

Note 2. The maximum frequency (FMAX) is set with 10 V input.
Note 3. The

frequency reference set in n03 works as frequency reference 1 when the Inverter

•The
is

in multi-step speed operation. The set values in n22 through n28 for frequency refer

ences 2 through 8 are enabled.

5-8

maximum frequency (FMAX) is set with 20 mA input, provided that SW8 on

the control PCB is switched from V to I.

-

Basic Operation Chapter

H Selecting the Frequency Reference (n07) in Local Mode

•Select the input method of frequency references in local mode.

5

•Two

frequency references are available in local mode. Select one of them according to

the application.

n07 Frequency Reference Selection in Local

Mode

Setting
range

0, 1 Unit of

setting

1 Default setting 0

Changes during
operation

No

Set Values

Value Description

0 The FREQ adjuster of the Digital Operator is enabled. (see note 1)
1 Key sequences on the Digital Operator are enabled. (see note 2)

Note 1. The
Note 2. The

maximum frequency (FMAX) is set when the FREQ adjuster is set to
frequency reference can be set with key sequences while the FREF indica

tor

is lit or with the set value in n21 for frequency reference 1. In either case, the

value is set in n21.

5-5-2 Upper and Lower Frequency Reference Limits

MAX.

-

Regardless

of the methods of operation mode and

frequency reference in

put, the upper and lower frequency reference limits can be set.

H Setting the Upper and Lower Frequency Reference Limits

(n30 and n31)

•Set

the upper and lower frequency reference limits as percentage based on the maxi

mum frequency as 100%.

n30 Upper Frequency Reference Limit Changes during

operation

Setting
range

n31 Lower Frequency Reference Limit Changes during

Setting
range

Note If

0% to 110%
(Max. frequency = 100%)

0% to 110%
(Max. frequency = 100%)

n31 is set to a value

er

will have no output when a frequency reference less than the minimum output

less than the minimum output frequency (FMIN), the Invert

Unit of
setting

Unit of
setting

1% Default setting 100

operation

1% Default setting 0

frequency input is ON.

No

No

-

-

-

5-9

Basic Operation Chapter

5

5-5-3 Adjusting the Analog Input

Input characteristic adjustments may be necessary for analog frequency
references
bias, and filter time parameter adjustments.

H FR Terminal Adjustments for Frequency Reference Input

D Gain and Bias Settings (n41 and n42)

•Set

the input characteristics of analog frequency references in n41 (for the frequency

reference gain) and n42 (for the frequency reference bias).

•Set the frequency of maximum analog input (10 V or 20 mA) in n41 as percentage
based on the maximum frequency as 100%.

•Set

the frequency of minimum analog input (0 V

based on the maximum frequency as 100%.

to be input. At that time, use the following parameters for gain,

, 0 mA, or 4 mA) in n42 as percentage

n41 Frequency Reference Gain Changes during

operation

Setting
range

n42 Frequency Reference Bias Changes during

Setting
range

0% to 255%
(Max. frequency = 100%)

–99% to 99%
(Max. frequency = 100%)

Unit of
setting

Unit of
setting

1% Default setting 100

operation

1% Default setting 0

D Filter Time Constant Settings (n43)

•The

digital filter with a first-order lag can be set for

input.

•This

setting is ideal if the analog input signal changes rapidly or the signal is subject to

noise interference.

•The larger the set value is, the slower the response speed will be.

n43 Analog Frequency Reference Filter Time Changes during

Setting
range

0.00 to 2.00 (s) Unit of

setting

analog frequency references to be

operation

0.01 s Default setting 0.10

Yes

Yes

No

5-10

Basic Operation Chapter

5-5-4 Setting Frequency References through Key

Sequences

The following description provides information on parameters related to
frequency
tor

H Setting Frequency References 1 through 8 and the Inching

Frequency Command (n21 through n28 and n29)

A

total of nine frequency references (frequency references 1 through 8) and an inching

frequency command can be set together in the Inverter.

D Setting Frequency References 1 through 8 (n21 through n28)

reference settings through key sequences on

the Digital Opera

-

5

n21 Frequency Reference 1 Changes during

operation

Setting
range

n22 Frequency Reference 2 Changes during

Setting
range

n23 Frequency Reference 3 Changes during

Setting
range

n24 Frequency Reference 4 Changes during

Setting
range

n25 Frequency Reference 5 Changes during

Setting
range

0.0 to max. frequency Unit of

setting

0.0 to max. frequency Unit of

setting

0.0 to max. frequency Unit of

setting

0.0 to max. frequency Unit of

setting

0.0 to max. frequency Unit of

setting

0.01 Hz
(see note 1)

0.01 Hz
(see note 1)

0.01 Hz
(see note 1)

0.01 Hz
(see note 1)

0.01 Hz
(see note 1)

Default setting 6.0

operation
Default setting 0.0

operation
Default setting 0.0

operation
Default setting 0.0

operation
Default setting 0.0

Yes

Yes

Yes

Yes

Yes

n26 Frequency Reference 6 Changes during

operation

Setting
range

n27 Frequency Reference 7 Changes during

Setting
range

0.0 to max. frequency Unit of

setting

0.0 to max. frequency Unit of

setting

0.01 Hz
(see note 1)

0.01 Hz
(see note 1)

Default setting 0.0

operation
Default setting 0.0

Yes

Yes

5-11

Basic Operation Chapter

5

n28 Frequency Reference 8 Changes during

operation

Setting
range

Note 1. Values

0.0 to max. frequency Unit of

setting

0.01 Hz
(see note 1)

will be set in 0.1-Hz increments if the frequency is

Default setting 0.0

less than 100 Hz and

Yes

1-Hz increments if the frequency is 100 Hz or over.

Note 2. Frequency reference 1 is enabled with n03 for frequency reference selection

set to 1.

Note 3. Frequency

erences 1, 2, and 3 in
lowing

references 2 through 8 are enabled by setting multi-step speed ref

n36

through n39 for multi-function input. Refer to the fol

table for the relationship between

multi-step speed references 1 through

3 and frequency references 1 through 8.

Frequency reference Multi-step speed

reference 1

(Set value: 6)

Frequency reference 1 OFF OFF OFF
Frequency reference 2 ON OFF OFF
Frequency reference 3 OFF ON OFF
Frequency reference 4 ON ON OFF
Frequency reference 5 OFF OFF ON
Frequency reference 6 ON OFF ON
Frequency reference 7 OFF ON ON
Frequency reference 8 ON ON ON

Multi-step speed

reference 2

(Set value: 7)

Multi-step speed

reference 3

(Set value: 8)

-

-

No

multi-step speed reference 3 settings will be required if only frequency references 1

through

4 are used, for example. Any multi-step speed reference not set is regarded as

turned-OFF input.

D Setting the Inching Frequency Command (n29)

•The

inching frequency command must be set as multi-function input in order to use

inching frequency command.

n29 Inching Frequency Command Changes during

operation

Setting
range

Note 1. The

0.0 to max. frequency Unit of

setting

0.01 Hz
(see note 1)

Default setting 6.0

value will be set in 0.1-Hz increments if the frequency is less than 100 Hz

and 1-Hz increments if the frequency is 100 Hz or over.

5-12

Yes

the

Basic Operation Chapter

5

Note 2. In order to use the inching frequency command, one of the n36 through n39

parameters

for multi-function input

must be set to 10 as an inching frequency
command. Parameter n29 is selectable by turning on the multi-function input
set with the inching frequency command. The inching frequency command
takes

precedence over the

multi-step speed reference (i.e., when the inching
frequency command is ON, all multi-step speed reference input will be ig­nored).

H Setting the Frequency Reference with the FREF Indicator Lit

•The

frequency reference can be set

lit in the following cases.

while the FREF indicator of the Digital Operator is

S Parameter

n03 for frequency reference selection is set to 1, which enables frequen

cy reference 1, and the Inverter is in remote mode.

S Parameter

n07 for frequency selection in local mode is set to 1, which enables key

sequences on the Digital Operator, and the Inverter is in local mode.

S Frequency references 2 through 8 are set with multi-step speed reference input.

•The frequency reference can be changed, even during operation.

•When the frequency reference is changed while the FREF indicator is lit, the corre-

sponding
has

been selected with

parameter is changed simultaneously

multi-function input (a multi-step speed reference), the set val

. For example, if

frequency reference 2

ue in n22 (for frequency reference 2) will be changed simultaneously when the fre­quency reference is changed while the FREF indicator is lit.

•Take

the following default steps, for example, to change the frequency reference with

the FREF indicator lit.

-

-

Key

sequence

Indicator Display

example

Explanation

Power On
Note If

Use the Increment or Decrement Key to set the
frequency reference.

The data display will flash while the frequency
reference is set.

Press the Enter Key so that the set value will be
entered and the data display will be lit.

the FREF indicator has not been lit, press the
Mode Key repeatedly until the FREF indicator
is lit.

5-13

Basic Operation Chapter

D Setting the Key Sequential Frequency (n08)

•The

Enter Key need not be pressed when changing the setting in n08. In that case, the
frequency
Decrement Key while the data display is continuously lit.

reference will change when the set value is changed with the Increment or

5

n08 Key Sequential Frequency Setting Changes during

operation

Setting
range

0, 1 Unit of

setting

1 Default setting 0

No

Set Values

Value Description

0 Enter Key enabled (The set value is entered with the Enter Key pressed.)
1 Enter Key disabled (The set value set is entered immediately.)

5-14

Basic Operation Chapter

5-6 Setting the Acceleration/Deceleration Time

The following description provides information on parameters related to
acceleration and deceleration time settings.
Trapezoidal
ing the S-shape characteristic function for acceleration and deceleration
can reduce shock to the machinery when stopping or starting.

H Setting the Acceleration/Deceleration Time (n16 through n19)

•Two acceleration times and two deceleration times can be set.

and S-shape acceleration and deceleration are available. Us

-

5

acceleration time is

•The

the time required to go from 0% to 100% of the maximum fre
quency and the deceleration time is the time required to go from 100% to 0% of the
maximum

frequency

. The actual acceleration or deceleration time is obtained from the

following formula.

Acceleration/Deceleration time = (Acceleration/Deceleration time set value)

(Frequency reference value) ÷ (Max. frequency)

×

Acceleration
deceleration

time 2 and deceleration time 2 are enabled by setting 1

1 for acceleration/

time selection in any of the n36 through n39 parameters for multi-function

input.
Deceleration time 2 is also enabled by emergency-stop settings 19, 20, 21, and 22 in

of the n36, n37, n38, and n39 parameters for multi-function input with n04 for inter

any
ruption mode selection set to 0 (i.e., deceleration stop).

n16 Acceleration time 1 Changes during

operation

Setting
range

n17 Deceleration Time 1 Changes during

Setting
range

0.0 to 999 (s) Unit of

setting

0.0 to 999 (s) Unit of

setting

0.1 s
(see note)

0.1 s
(see note)

Default setting 10.0

operation
Default setting 10.0

Yes

Yes

-

-

n18 Acceleration Time 2 Changes during

operation

Setting
range

n19 Deceleration Time 2 Changes during

Unit of
setting

Note Values

0.0 to 999 (s) Unit of

setting

0.0 to 999 (s) Unit of

setting

will be

set in 0.1-Hz increments if the frequency is less than 100 Hz and

0.1 s
(see note)

0.1 s
(see note)

Default setting 10.0

operation
Default setting 10.0

1-Hz increments if the frequency is 100 Hz or over.

Yes

Yes

5-15

Basic Operation Chapter

5

H S-shape Acceleration/Deceleration Characteristic (n20)

•Trapezoidal and S-shape acceleration and deceleration are available. Using the S­shape characteristic function for acceleration and deceleration can reduce shock to
the machinery when stopping or starting.

•Any

one of three S-shape acceleration/deceleration times

lectable.

(0.2, 0.5, and 1.0 s) is se

-

n20 S-shape Acceleration/Deceleration

Characteristic

Setting
range

0 to 3 Unit of

setting

1 Default setting 0

Changes during
operation

Set Values

Value Description

0 No S-shape acceleration/deceleration characteristic (Trapezoidal

acceleration/deceleration)
1 S-shape acceleration/deceleration characteristic time is 0.2 s
2 S-shape acceleration/deceleration characteristic time is 0.5 s
3 S-shape acceleration/deceleration characteristic time is 1.0 s

Note When

eration and deceleration times will be lengthened according
beginning and end of acceleration/deceleration.

the S-shape acceleration/deceleration characteristic time is set, the accel

to the S-shape at the

No

-

5-16

Basic Operation Chapter

5-7 Selecting the Reverse Rotation-prohibit

This

parameter is used to specify whether to enable or disable the
rotation
Digital
The
systems that prohibit the reverse rotation of the Inverter.

command sent to the Inverter from

Operator

parameter should be set to “not accept” when the Inverter is applied to

.

the control circuit terminals or

H Selecting the Reverse Rotation-prohibit (n05)

reverse

5

n05 Reverse Rotation-prohibit Selection Changes during

operation

Setting
range

0, 1 Unit of

setting

1 Default setting 0

Set Values

Value Description

0 Accept
1 Not accept

No

5-17

Basic Operation Chapter

5-8 Selecting the Interruption Mode

This parameter is used to specify the interruption mode when the STOP
command is input.
The

Inverter either decelerates or coasts

ruption mode selection.

H Selecting the Interruption Mode (n04)

to a stop according to the inter

-

5

n04 Interruption Mode Selection Changes during

operation

Setting
range

0, 1 Unit of

setting

1 Default setting 0

Set Values

Value Description

0 Frequency deceleration stop (see note)
1 Free running

Note The

Inverter will decelerate to stop according to the setting in n17 for deceleration

time

1 if any of the n36 through
11

for acceleration/deceleration time selection. If any one of the n36 through n39
multi-function
the

Inverter will decelerate to stop according to the selected setting of decelera

tion time when the STOP command is input.

input parameters is

n39 parameters for multi-function input is not set to

set to acceleration/deceleration time selection,

No

-

5-18

Basic Operation Chapter

5-9 Multi-function I/O

5-9-1 Multi-function Input

The 3G3JV incorporates four multi-function input terminals (S2 through

Inputs into these terminals have a variety of functions according to the

S5).
application.

H Multi-function Input (n36 through n39)

5

n36 Multi-function Input 1 (S2) Changes during

operation

Setting
range

n37 Multi-function Input 2 (S3) Changes during

Setting
range

n38 Multi-function Input 3 (S4) Changes during

Setting
range

n39 Multi-function Input 4 (S5) Changes during

Setting
range

2 to 8, 10 to 22
(see note)

0, 2 to 8, 10 to 22
(see note)

2 to 8, 10 to 22
(see note)

2 to 8, 10 to 22, 34
(see note)

Unit of
setting

Unit of
setting

Unit of
setting

Unit of
setting

1 Default setting 2

operation

1 Default setting 5

operation

1 Default setting 3

operation

1 Default setting 6

Note Do not set values outside the above setting ranges.

No

No

No

No

5-19

references

Basic Operation Chapter

Set Values

Value Function Description

5

0 Forward/Reverse

rotation command

2 Reverse/Stop Reverse rotation command (2-wire sequence)
3 External fault (NO) ON: External fault (FPj detection: j is a terminal

4 External fault (NC) OFF: External fault (EFj detection: j is a terminal

5 Fault reset ON: Fault reset (disabled while RUN command is input)
6 Multi-step speed

reference 1

7 Multi-step speed

reference 2

8 Multi-step speed

reference 3

3-wire sequence (to be set in n37 only)
By setting n37 to 0, the set value in n36 is ignored and

the following setting are forcibly made.

S1: RUN input (RUN when ON)
S2: STOP input (STOP when OFF)
S3: Forward/Reverse rotation command

(OFF: Forward; ON: Reverse)

number)

number)

Signals to select frequency references 2 through 8.
Note Refer to

through Key Sequences

tween
references.

Note Any

as turned-OFF input.

5-5-4 Setting the Frequency References

for the relationship be-

multi-step speed references and

.

multi-step speed reference not set is regarded

frequency

10 Inching frequency

command

11 Acceleration/Decel-

eration time selection

12 External base block

command (NO)

13 External base block

command (NC)

14 Search command

(Searching starts
from maximum
frequency)

15 Search command

(Searching starts
from preset
frequency)

16 Acceleration/Decel-

eration-prohibit com­mand

ON: Inching frequency command (taking precedence
over the multi-step speed reference)

ON: Acceleration time 2 and deceleration time 2 are
selected.

ON: Output shut off (while motor coasting to a stop and
“bb” flashing)

OFF: Output shut off (with motor free running and “bb”
flashing)

ON: Speed search (Searching starts from n09)

ON: Speed search

ON: Acceleration/Deceleration is on hold (running at
parameter frequency)

5-20

input turned ON.

Note NO: Emergency stop with the contact closed

Basic Operation Chapter

Value DescriptionFunction

17 Local or remote

selection

19 Emergency stop fault

(NO)

20 Emergency stop

alarm (NO)

21 Emergency stop fault

(NC)

22 Emergency stop

alarm (NC)

ON: Local mode (operated with the Digital Operator)
Note After

this setting is made, mode selection with

the

Digital Operator is not possible.

The Inverter stops according to the setting in n04 for
interruption mode selection with the emergency stop
input turned ON.

n04 set to 0: Decelerates to stop at deceleration time
2 set in n19. n04 set to 1: Coasts to a stop.

Note NO: Emer

enc

sto

with the contact closed.

.

NC: Emergency stop with the contact opened.

Note Fault:

Fault output is ON and reset with RESET in

put. Alarm output is ON (no reset required).

Note “STP” is displayed (lit with fault input ON and

flashes with alarm input ON)

5

-

34 Up or down

command

Up or down command (set in n39 only)
By setting n39 to 34, the set value in n38 is ignored and

the following settings are forcibly made.

S4: Up command S5: Down command

Note It

Note For

is impossible to set the up or down command and

multi-step speed references 1

up and down

fer to

6-7-7 UP/DOWN Command Frequency

Memory (n62)

command functions in detail, re

.

through 3 together

H Operation in 2-wire Sequence (Set Value: 2)

•The

Inverter operates in 2-wire sequence by setting a multi-function input parameter to

2 (reverse/stop).

•The following diagram shows a wiring example of the terminals in 2-wire sequence.

.

-

Forward-rotation
switch

Reverse-rotation
switch

Forward/Stop (Forward rotation with the forward-rotation switch
closed and reverse-rotation switch opened)

Reverse/Stop (Reverse rotation with the reverse-rotation switch
closed and forward-rotation switch opened)

Sequence input common

j

: 2 to 5

5-21

Basic Operation Chapter

H Operation in 3-wire Sequence (n37 = 0)

•The

Inverter operates in 3-wire sequence by setting n37 for multi-function input 2 to 0.

5

•Only

n37 can be set to 0 (3-wire sequence). By making this setting, the set value in n36

is ignored and the following settings are forcibly made.

S1: RUN input (RUN when ON)
S2: STOP input (STOP when OFF)
S3: Forward/Reverse rotation command (OFF: Forward; ON: Reverse)

•The following diagram shows a wiring example of the terminals in 3-wire sequence.

Stop switch
(NC)

Operation
switch (NO)

Direction switch

RUN input (RUN with the STOP switch and RUN switch closed)
STOP input (with the STOP switch opened)

Forward/Reverse
switch opened and reverse rotation with the direction switch closed)

Sequence input common

rotation command (Forward rotation with the direction

5-9-2 Multi-function Output

The

3G3JV incorporates

Output

from these terminals has a

plication.

H Selecting the Multi-function Output (n40)

n40 Multi-function Output (MA/MB and MC) Changes during

Setting
range

Note Do not set values outside the above setting ranges.

0 to 7, 10 to 17
(see note)

two multi-function output terminals (MA and MB).

variety of functions according to the ap

operation

Unit of
setting

1 Default setting 1

-

No

5-22

60)

Basic Operation Chapter

Set Values

Value Function Description

0 Fault output ON: Fault output (with protective function working)
1 Operation in progress ON: Operation in progress (with RUN command input or

inverter output)

2 Frequency detection ON: Frequency detection (with frequency reference

coinciding with output frequency)
3 Idling ON: Idling (at less than min. output frequency)
4 Frequency detection 1 ON: Output frequency y frequency detection level (n58)
5 Frequency detection 2 ON: Output frequency x frequency detection level (n58)
6 Overtorque being

monitored
(NO-contact output)

Output if any of the following parameter conditions is

satisfied.

•Overtorque detection function selection (n59)

5

7 Overtorque being

monitored
(NC-contact output)

10 Alarm output ON: Alarm being detected (Nonfatal error being
11 Base block in

progress
12 RUN mode ON: Local mode (with the Digital Operator)
13 Inverter ready ON: Inverter ready to operate (with no fault detected)
14 Fault retry ON: Fault retry (Inverter resetting with fault retry (n48)

15 UV in progress ON: Undervoltage being monitored (main circuit
16 Rotating in reverse

direction
17 Speed search in

progress

•Overtorque detection level (n

•Overtorque detection time (n61)

Note NO contact: ON with overtorque being detected;

NC contact: OFF with overtorque being detected

detected)
ON: Base block in progress (in operation with output

shutoff)

not set to 0)
undervoltage UV1 detected)

ON: Rotating in reverse direction
ON: Speed search in progress

5-23

Basic Operation Chapter

5-10 Analog Monitor Output

The 3G3JV incorporates analog monitor output terminals AM and AC.
These terminals have analog monitor values of output frequency or cur­rent.

H Setting the Analog Monitor Output (n44 and n45)

•The output frequency or current as a monitored item is set in n44.

•The analog output characteristics are set as an analog monitor output gain in n45.

5

n44 Analog Monitor Output Changes during

operation

Setting
range

0, 1 Unit of

setting

1 Default setting 0

Set Values

Value Description

0 Output frequency (Reference: 10 V at max. frequency)
1 Output current (Reference: 10 V with rated output current)

n45 Analog Monitor Output Gain Changes during

operation

Set range 0.00 to 2.00 Unit of

setting

Note 1. Set the multiplication ratio based on the set value in n44.

example, if an output of 5 V is desired at maximum frequency (with n44 set

For
to 0), set n45 to 0.50.

Note 2. The

maximum output voltage of the analog monitor output terminals are 10 V

0.01 Default setting 1.00

No

Yes

.

5-24

6

Chapter 6

Advanced Operation

6-1 Setting the Carrier Frequency
6-2 DC Injection Braking Function
6-3 Stall Prevention Function
6-4 Overtorque Detection Function
6-5 Torque Compensation Function
6-6 Slip Compensation Function
6-7 Other Functions

Advanced Operation Chapter 6

This

chapter provides information on the use of advanced functions of the
Inverter for operation.
Refer

to this chapter to use the various advanced functions, such as stall
prevention, carrier frequency setting, overtorque detection, torque com­pensation, and slip compensation.

6-1 Setting the Carrier Frequency

The

carrier frequency of the 3G3JV can be fixed or varied in proportion to

the output frequency.

n46 Carrier Frequency Selection Changes during

operation

Setting
range

1 to 4, 7 to 9 Unit of

setting

1 Default setting (see note)

No

Note The default setting varies with the capacity of the Inverter model.

Set Values

Value Description

1 2.5 kHz
2 5.0 kHz
3 7.5 kHz
4 10.0 kHz
7 2.5 kHz (12×): 12 times as high as output frequency (between 1.0 and 2.5 kHz)
8 2.5 kHz (24×): 24 times as high as output frequency (between 1.0 and 2.5 kHz)
9 2.5 kHz (36×): 36 times as high as output frequency (between 1.0 and 2.5 kHz)

•The default setting does not need any changes in normal operation.

•Change the default setting in the following cases.

The wiring distance between the Inverter and motor is long:
Set the Inverter to a lower carrier frequency.

Reference carrier frequency: 10 kHz at a maximum wiring distance of 100 m

and

5 kHz at a wiring distance exceeding 100

Excessive speed or torque dispersion at low speed:
Set the carrier frequency to a lower value.

6-2

m.

3 p ase

S g e p ase

Advanced Operation Chapter 6

Note The

carrier frequency changes as shown in the following graph with 7 through 9

set in n46.

Carrier Frequency (n46: 7 through 9)

Carrier
Frequency

Output frequency

83.3 Hz (Set value: 7)

41.6 Hz (Set value: 8)

27.7 Hz (Set value: 9)

208.3 Hz (Set value: 7)

104.1 Hz (Set value: 8)

69.4 Hz (Set value: 9)

•The Inverter cannot maintain rated output current with the carrier frequency set to a
value higher than the default one.
The following table shows the default value and a decrease in the output current of
each Inverter model.
Be sure to use the Inverter so that there will be no decrease in rated output current.

Voltage Model

3-phase
200 V

Single-phase
200 V

A2001 4 (10 kHz) 0.8 ← ←
A2002 4 (10 kHz) 1.6 ← ←
A2004 4 (10 kHz) 3.0 ← ←
A2007 4 (10 kHz) 5.0 ← ←
A2015 3 (7.5 kHz) 8.0 ← 7.0
A2022 3 (7.5 kHz) 11.0 ← 10.0
AB001 4 (10 kHz) 0.8 ← ←
AB002 4 (10 kHz) 1.6 ← ←
AB004 4 (10 kHz) 3.0 ← ←
AB007 4 (10 kHz) 5.0 ← ←
AB015 3 (7.5 kHz) 8.0 ← 7.0

3G3JV-

Default
setting

Rated

output

current (A)

Set to 3

Reduced

rated output

current (A)

Set to 4

Reduced

rated output

current (A)

6-3

Advanced Operation Chapter 6

n75 Low Carrier Frequency at Low Speed Changes during

operation

Setting
range

0, 1 Unit of

setting

1 Default setting 0

No

Set Values

Value Description

0 Low carrier frequency at low speed disabled.
1 Low carrier frequency at low speed enabled.

•Normally set n75 to 0.

•When

the
load

the output frequency is 5 Hz or higher and the output current rate is 1

carrier frequency will be automatically reduced to 2.5 kHz with n75 set to 1. If the

is heavy at low speed, the Inverter will withstand higher overcurrent by suppres

sing the heat radiation of the Inverter caused by the carrier frequency.

•This function is enabled with 2, 3, or 4 set in n46 for carrier frequency.

10% or less,

-

6-4

Advanced Operation Chapter 6
6-2 DC Injection Braking Function

The DC injection braking function applies DC on the induction motor for
braking control.
Startup DC Injection Braking:
This

braking is used for stopping and starting the motor rotating by inertia
with no regenerative processing.
DC Injection Braking to Stop:
Adjust the stop DC injection braking time if the motor rotating does not
decelerate
By

increasing the DC injection braking time or DC injection braking current,

the time required for stopping the motor is reduced.

to a stop in normal operation due to inertia from a heavy load.

n52 DC Injection Braking Current Changes during

operation

Setting
range

n53 DC Injection Braking-to-stop Time Changes during

Setting
range

n54 Startup DC Injection Braking Time Changes during

Setting
range

•

Set the DC injection braking current as percentage based on the rated current of the

0 to 100 (%) Unit of

setting

0.0 to 25.5 (s) Unit of

setting

0.0 to 25.5 (s) Unit of

setting

1% Default setting 50

operation

0.1 s Default setting 0.5

operation

0.1 s Default setting 0.0

No

No

No

Inverter as 100%.

•After

the startup DC injection braking time

is set, the Inverter starts up at minimum fre

quency on completion of the startup DC injection braking control of the Inverter.

•After

the speed is reduced, the Inverter is switched to

DC injection braking at minimum

output frequency.

-

DC Injection Braking Control

Output
frequency

Minimum
output
frequency
(n14)

n54
Startup DC injection
braking time

Time
n53
DC injection
braking-to-stop time

6-5

Advanced Operation Chapter 6
6-3 Stall Prevention Function

A

stall will occur if the motor cannot keep up with the rotating magnetic

on

the motor stator side when a large load is applied to the motor or a sud
den acceleration/deceleration is performed.
In

the 3G3JV

, stall prevention functions can be set independently for

erating, running, and decelerating conditions.

field

accel

-

-

n55 Stall Prevention Level during

Deceleration

Setting
range

0, 1 Unit of

1 Default setting 0

setting

Changes during
operation

No

Set Values

Value Description

0 Stall prevention during deceleration
1 No stall prevention during deceleration

•If

1 is set, the motor will be decelerated according to the set deceleration time. If

deceleration time is too short, the main circuit may result in overvoltage.

•If 0 is set, the deceleration time will be automatically lengthened to prevent overvol­tage.

Stall Prevention during Deceleration with n55 Set to 0

Output
frequency

Deceleration time is controlled
to prevent overvoltage.

the

6-6

Time

Deceleration time (Set value)

Advanced Operation Chapter 6

n56 Stall Prevention Level during

Acceleration

Setting
range

30 to 200 (%) Unit of

1% Set Values 170

setting

Changes during
operation

No

Set Values

•This

•Set the parameter as percentage based on the rated Inverter current as 100%.

•The default setting does not need any changes in normal operation.

•Decrease

function is used to stop accelerating
current
accelerates

value so that the Inverter will continue operating without stalling. The Inverter

the load while the output current is

the set value if the capacity of the motor is smaller than

the load if the output current exceeds the set

the same as or less than the set value.

that of the Inverter or
the motor stalls with the default value.
The

set value is normally 2 or 3 times higher than the rated current of the motor

current as percentage based on the rated inverter current as 100%.

Stall Prevention during Acceleration

Output
current

n56 (stall prevention level
during acceleration)

. Set this

Output
frequency

Time

The output frequency is controlled
so that the Inverter will not stall.

Time

6-7

Advanced Operation Chapter 6

n57 Stall Prevention during Operation Changes during

operation

Setting
range

30 to 200 (%) Unit of

setting

1% Default setting 160

No

Set Values

•This

•The

•Set the parameter as percentage based on the rated Inverter current as 100%.

•The default setting does not need any changes in normal operation.

•Decrease

function will decrease the output frequency
current
operating

value by a minimum of approximately 100 ms so that the Inverter will continue

without

stalling. The Inverter will increase the output frequency to return to

if the output current exceeds the set

the set frequency reference level when the output current is less than the set value.

Inverter accelerates or decelerates the output frequency according

acceleration or deceleration time. (Acceleration

time 1: n16, n17 or acceleration time

to the preset

2: n18, n19)

the set value if the capacity of the motor is smaller than

that of the Inverter or
the motor stalls with the default value.
The

set value is normally 2 or 3 times higher than the rated current of the motor

. Set this

current in percentage based on the rated Inverter current as 100%.

Stall Prevention during Acceleration

Output
current

Output
frequency

n57 (Stall prevention
level during acceleration)

Time

The output frequency is controlled
so that the Inverter will not stall.

Time

6-8

Advanced Operation Chapter 6
6-4 Overtorque Detection Function

When

an excessive load is applied to the equipment, the Inverter

detects

the overtorque condition through an increase in the output current.

n59 Overtorque Detection Function Selection Changes during

operation

Setting
range

0 to 4 Unit of

setting

1 Default setting 0

No

Set Values

Value Description

0 Inverter does not monitor overtorque.
1 Inverter monitors overtorque only when speed is matched. It continues

operation (issues warning) even after overtorque is detected.

2 Inverter monitors overtorque only when speed is matched. It discontinues

operation (through protective function) when overtorque is detected.

3 Inverter always monitors overtorque during operation. It continues operation

(issues warning) even after overtorque is detected.

4 Inverter always monitors overtorque during operation. It discontinues

operation (through protective function) when overtorque is detected.

•Set

n60 for overtorque detection level and n61 for overtorque detection time to enable

the

overtorque detection function. The Inverter will detect overtorque when the

the

same as or higher than the detection level is output for the preset detection time.

•

Set n40 for multi-function output to either of the following so that external overtorque

current

detection output will be ON.

Set Value: 6 for overtorque detection (NO)
Set Value: 7 for overtorque detection (NC)

Overtorque Detection

Output
current

Overtorque
detection (NO)

Note Overtorque

imately 5% of the Inverter rated current.

Overtorque detection time

detection will be canceled if the output current decreases from the detection level by approx

See note.

n60 (Overtorque
detection level)

Time

n61

Time

-

6-9

Advanced Operation Chapter 6

n60 Overtorque Detection Level Changes during

operation

Setting
range

30 to 200 (%) Unit of

setting

1% Default setting 160

No

Set Values

•Set the parameter as percentage based on the rated Inverter current as 100%.

n61 Overtorque Detection Time Changes during

operation

Setting
range

0.1 to 10.0 (s) Unit of

setting

0.1 s Default setting 0.1

No

Set Values

•Set the overtorque detection time.

•The Inverter will detect overtorque when the current the same as or higher than the

detection level is output for the preset detection time.

6-10

Advanced Operation Chapter 6
6-5 Torque Compensation Function

This function increases the output torque of the Inverter by detecting an
increase in the motor load.

n63 Torque Compensation Gain Changes during

operation

Setting
range

0.0 to 2.5 Unit of

setting

0.1 Default setting 1.0

Yes

Set Values

•The default setting does not need any changes in normal operation.

•Change the default setting in the following cases.

The wiring distance between the Inverter and motor is long:
Set the gain to a larger value.

The capacity of
the Inverter:
Set the gain to a larger value.

The motor vibrates:
Set the gain to a smaller value.

•The torque compensation gain must be adjusted so that the output current at low
speed will not exceed 50% of the rated output current of the Inverter, otherwise the
Inverter may be damaged.

the motor is lower than the maximum applicable motor capacity of

6-11

Advanced Operation Chapter 6
6-6 Slip Compensation Function

The slip compensation function calculates the motor torque according to
the output current, and sets gain to compensate for output frequency.
This function is used to improve speed accuracy when operating with a
load.

n64 Rated Motor Slip Changes during

operation

Setting
range

0.0 to 20.0 (Hz) Unit of

setting

0.1 Hz Default setting (see note)

Note The default setting varies with the capacity of the Inverter model.

Set Values

•Set the rated slip value of the motor in use.

•This parameter is used as a slip compensation constant.

•Calculate

tor nameplate by using the following formula.

Rated slit value (Hz) y Rated frequency (Hz) –

n65 Motor Current with No Load Changes during

Setting
range

the rated motor slip value from the rated frequency (Hz) and rpm on the

Rated rpm Number of poles

120

operation

0 to 99 (%) Unit of

setting

1% Default setting (see note)

Yes

No

mo

-

Note The default setting varies with the capacity of the Inverter model.

Set Values

•Set

the motor current with

100%.

•Contact the motor manufacturer for the motor current with no load.

•This parameter is used as a slip compensation constant.

6-12

no load in percentage based on the rated motor current as

Advanced Operation Chapter 6

n66 Slip Compensation Gain Changes during

operation

Setting
range

0.0 to 2.5 Unit of

setting

0.1 Default setting 0.0

Note This parameter is disabled with the value set to 0.0.

Set Values

•Set

the parameter to 1.0

first and check the operation of the Inverter

gain with 0.1-gain increments or decrements.

If the speed is lower than the target value, increase the set value.
If the speed is higher than the target value, decrease the set value.

n67 Slip Compensation Parameter Changes during

operation

Setting
range

0.0 to 25.5 (s) Unit of

setting

0.1 s Default setting 2.0

Set Values

•This

parameter is used for the response adjustment of the slip compensation function.

Yes

(see note)

. Then fine-tune the

No

•The default setting does not need any changes in normal operation.

•Change the default setting in the following cases.

The motor vibrates: Set the value to a larger value.
The motor response is low: Set the value to a smaller value.

6-13

Advanced Operation Chapter 6
6-7 Other Functions

The

following description provides information on the other functions and

parameter settings of the Inverter.

6-7-1 Motor Protection Characteristics (n33 and n34)

•This parameter setting is for motor overload detection (OL1).

n33 Motor Protection Characteristic Selection Changes during

operation

Setting
range

0 to 2 Unit of

setting

1 Default setting 0

Set Values

Value Description

0 Protection characteristics for general-purpose induction motors
1 Protection characteristics for Inverter-dedicated motors
2 No protection

•This

•Set the parameter according to the motor.

•If

parameter is used to set the electric thermal characteristics of the motor to be con

nected.

a single Inverter is connected to more than one motor

protection.

n34 Motor Protection Time Changes during

Setting
range

The parameter is also disabled by setting n32 for rated motor current to 0.0.

1 to 60 (min) Unit of

setting

1 min Default setting 8

, set the parameter to 2 for no

operation

No

-

No

6-14