Veichi AC70-T3-R75G/1R5P, AC70-T3-7R5G/011P, AC70-T3-018G/022P, AC70-T3-015G/018P, AC70-T3-022G/030P User Manual

...

Contents

Chapter1 Overview .............................................................................................................................................. 1

1.1 Safety Requirement and Cautions ............................................................................................................ 1

1.2 Technical Criterion ..................................................................................................................................... 4

Chapter 2 Before Use .......................................................................................................................................... 7

2.1 Purchase Inspection .................................................................................................................................. 7

2.2 Nameplate ................................................................................................................................................. 7

2.3 Rated Output Current ................................................................................................................................ 8

Chapter 3 Installation and Wiring ...................................................................................................................... 9

3.1 Safety Precautions .................................................................................................................................... 9

3.2 Treatment for Inverter after Longtime Store .............................................................................................. 9

3.3 Inverter Stable Running Environment ..................................................................................................... 10

3.4 EMI Protection ......................................................................................................................................... 11

3.5 Machinery Installation .............................................................................................................................. 13

3.6 Electric Installation ................................................................................................................................... 22

Chapter 4 Basic Operation and Trial Run ....................................................................................................... 37

4.1 Safety Precautions .................................................................................................................................. 37

4.2 Keyboard Layout and Function Specification .......................................................................................... 38

4.3 Basic Operation ....................................................................................................................................... 40

4.4 Trial Run .................................................................................................................................................. 45

Chapter 5 Fault Diagnoses and Processing ................................................................................................... 50

5.1 Fault Types .............................................................................................................................................. 50

5.2 Fault Information and Details .................................................................................................................. 50

5.3 Fault Diagnoses Process ........................................................................................................................ 54

Chapter 6 Periodic Overhaul and Maintenance ............................................................................................. 60

6.1 Safety Precautions .................................................................................................................................. 60

6.2 Overhaul .................................................................................................................................................. 60

6.3 Maintenance ............................................................................................................................................ 61

Chapter 7 Peripheral Equipments and Options ............................................................................................. 64

7.1 Safety Precautions .................................................................................................................................. 64

7.2 Peripheral Equipments ............................................................................................................................ 64

7.3 The Use of Peripheral Equipments ......................................................................................................... 66

Chapter 8 Function Parameter Specification ................................................................................................. 69

8.1 Basic Parameters Specification .............................................................................................................. 69

8.2 External Terminal Parameters................................................................................................................. 93

8.3

.Special Function Parameters ............................................................................................................... 108

Chapter 9 Appendix ......................................................................................................................................... 119

9.1 Appendix 1: Function Code Simple List ................................................................................................ 11 9

9.2 Appendix 2: RS485 Communication Protocol ....................................................................................... 135

9.3 Appendix 3: LCD Keyboard Manual ...................................................................................................... 141

AC70 VC CONTROL FREQUENCY INVERTER MANUAL OVERVIEW

Chapter 1 Overview

Thanks for using AC70 series sensorless vector control frequency inverter produced by Veichi Electric co.,ltd. This

manual introduces you how to use it perfectly. Please read this manual carefully and fully understand the safety

requirement and cautions before use (installation, wiring, operation, maintain, checking, and etc...).

1.1 Safety Requirement and Cautions

Pls do totally understand this part before using the inverter.

Warning signs and meanings

This manual has used below signs that mean there is an important part of security. While observing against the rules,

there is danger of injury even death or machine system damage.

Danger: Wrong operation may cause death or large accident.

Warning: Wrong operation may cause death or large accident.

Caution: Wrong operation may cause minor wound.

Important: Wrong operation may cause the inverter and other machine system damage

Warning signs position

Drawing 1：Warning positions on crust of AC70 series inverter

Warning position 2

Warning position 1

AC70 VC CONTROL FREQUENCY INVERTER MANUAL OVERVIEW

Operation requirement

Only Professional trained person are allowed to operate the equipment such as installation, wiring, running, maintain

and etc. “Professional trained person”in this manual means the workers on this product must experience professional

skill train, must be familiar with installation, wiring, running and maintain and can rightly deal with emergency cases in

use.

Safety guidance

Safety regulations and warning signs come for your security. They are measures to prevent the operator and machine

system from damage. Please carefully read this manual before using and strictly observe the warning signs while

operating. Safety regulations and warning signs are classified into: routine regulation, transport and store regulation,

installation and wiring regulation, running regulation, maintenance regulation, dismantlement and disposal regulation.

● Routine regulation

● This product carries dangerous voltage and controls driver machine with potential danger. If

you don’t abide by the regulations or requirements in this manual, there is danger of body

injury even death and machine system damage.

● Only qualified personnel are allowed to operate the equipment.this product. Before using, the

operator must be familiar with all safety specifications and operation regulations in this

manual. Safe and stable work of the product is based on right operation and maintenance.

● Do not wire while the power is connected. Otherwise, there is danger of death for electric

shock. Before wiring, inspection, maintenance, please cut power supply of all related

equipments and ensure mains DC voltage in safe range. And please operate it after 5 mins.

● Away from children and public.

● Only used in application fields as maker stated. No use in equipments related to special fields

such as emergency, succor, ship, medical treatment, aviation, nuclear and etc.

● Unauthorized alteration or use of accessories which are not sold or recommended by the

maker may cause faults.

● Please make sure this manual is in the final user’ hand before using.

● Before installation and debugging please carefully read and totally understand these safety

regulation and warning signs.

● Transport and store regulation

●Correct transport, store, installation and careful operation an maintenance are important for

inverter safe operation.

● In transport and store process, make sure the inverter is free from impact and vibration. It

must be stored where is dry without corrosive air and conductive dust, and the temperature must be lower than 60℃.

● Installation and wiring regulation

● Only professional trained person can operate it.

● Power wire, motor wire and control wire should be all connected firmly. Earth must be reliable

and earth resistance must be lower than 10Ω.

● Before opening the inverter, please disconnect all related equipment power supply and make

sure the mains DC voltage is in safe range and operate after 5mins.

● Human body electrostatic will damage inner sensitive components seriously. Before

operation, please follow ESD measures. Otherwise, there is danger of inverter damage.

● Inverter output voltage is pulse wave. If components such as capacitor which improves power

factor and pressure-sensitive resistance for anti-thunder and so on are installed at the output

side, please dismantle them or change to input side.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL OVERVIEW

● No switch components such as breaker and contactor at the output side. (If there must be

one, please make sure the output current is 0 while the switch acting).

● The power supply cable and motor cable specifications must satisfy all conditions in table 3-7

3-8 .

● Run regulation

● Inverter runs at high voltage. So dangerous voltage is in some components inevitably.

● No matter where the fault is, there is danger of serious accident, even human body injury

what means dangerous malfunction possibility. So there must be additional external prevent

measures or other safety devices, such as independent current limiting switch, machinery

and so on.

● Maintenance regulation

● Only Shenzhen Veichi Electric co., ltd service department or its authorized service center or

professional person trained and authorized by Veichi can maintain the products. They should

be very familiar with the safety warning and operation gist in this manual.

● Any defective components must be changed in time.

● Before opening the inverter to repair please cut power supply of all related equipments and

ensure mains DC voltage in safe range. And please do operation after 5 mins.

● Dismantlement and disposal regulation

● Packing case can be reused. Please keep them and reuse or send back to maker.

● Dismantled metal components are retractable and can be reused.

●

Some components such as electrolytic capacitor are harmful to environment. Please dispose

according to environmental protection departments.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL OVERVIEW

1.2 Technical Specification

Te ch .

Specification

Items Description

Power Input

Voltage, frequency single phase 220V, 3 phase, 220V,380V, 660V and 1140V

Allowable fluctuations

Voltage:＜±15%; frequency±5%

Distortion of voltage to confirm to IEC61800-2

Closing striking current

less than rated current

Power Factor

≥0.94( integrated DC reactor)

Efficiency

≥96%

Power

Output

Output Voltage

3 Phase, 0～Input voltage, tolerance less than 5% in standard

rating condition

Frequency Control Range

G type: 0 to 400Hz, P type: 0-400Hz, Z type: 0-400Hz, L type:

0-400Hz,

H type: 0-3000Hz.

Output frequency accuracy

±5% of maximum frequency

Overload Tolerance

Z type: 150% rated current for 60 sec, 180% rated current for 30

sec, 250% rated current for instantaneous

G, H, L type model: 150% of rated output current for 60 sec,180% of

rated current for 10s, 2 00% of rated current for instantaneous

P type: 120% rated current 60 sec, 150% rated current for

instantaneous

Key Control

performance

Motor Control Mode Open loop sensorless vector control without PG, V/F control

Control system

Optimized Space Vector PWM Modulation

Carrier frequency

0.6～15kHz, Randomly-modulated carrier

Speed control range

OLV without PG with rated load: 1:100,

Stable speed control accuracy

OLV without PG: less than 1% rated synchronous speed

Torque response

OLV without PG control mode: ≤20ms

Frequency Accuracy

(Temperature Fluctuation)

Digital inputs: maximum × ±0.01%

Analog inputs: maximum × ± 0.2%

Frequency Setting Resolution

Digital inputs: 0.01 Hz

Analog inputs: 0.5% of maximum output frequency

Standard

Function

DC Braking

Starting Frequency: 0.00 to 50.00Hz,

Braking Time: 0.0 to 60.0s

Braking current: 0.0 to 150% rated current

Torque boost

Auto torque boost:0.0% to 100%

Manual torque boost: 0.0% to 25%

AC70 VC CONTROL FREQUENCY INVERTER MANUAL OVERVIEW

V/F curve

5 kinds curve programmable setting:1 user setting, 1 of linear

characteristic torque curve setting. 3 kinds derating torque

setting( 1.5 power, 1.7 power, 2.0 Power curve )

Accel / Decel. curve

Two kinds curve: line Accel/Decel, S curve Accel/Decel.

4 Aceel/Decel time unit is 0.1s, maximum time 6500.0s

Rated output voltage

Power voltage compensation is available, setting range from 50 to

100%( rated voltage), the output voltage can't over than input

AVR( Auto Voltage Regulation

automatic voltage regulation for keeping output voltage stable when

fluctuation of grid

Auto energy saving running

Optimized the output voltage according the load to achieve energy

saving

Auto current limit

Auto current limit during running mode to avoid trip occurs

frequently

Momentary Power Loss with

no stop running function

To achieve continuous running with regenerative enery and DC bus

voltage regulation when momentary power loss

Standard Function

PID control, Carrier frequency adjustable, current limiter, Speed

Search, Momentary Power Loss restart,8 Step Speed (max), 3-wire

Sequence, Slip Compensation, Frequency Jump, Upper/lower

Limits for Frequency Reference, DC Injection Braking at Start and

Stop, Energy Saving Control, Modbus Comm RS485, Fault Restart,

job function, Cooling Fan on/off Switch, timing stop, high pulse

output, programmable auto running, swing frequency, counter,

frequency arriving detect and frequency lever detect.

Frequency Setting Methods

Keypad digital setting, potentiometer of keypad, analog voltage

terminal VS1, analog voltage terminal VS2, analog current terminal

AS, RS485 communication and multiple terminal, main and auxiliary

composition setting.

Feedback Input Channel

voltage terminal VS1, VS2, current terminal AS, communication ,

and pulse input PUL

Running command channel keypad given, external terminal given, communication given

Input command signal

Start, Stop, FEW/Reverse, Job, Multiple speed, free stop, Reset,

Accel/Decel time, Frequency set point channel, External fault

Output signal

2 Photo coupler relays: 2 (24 V, up to 50 mA)

1 Contact relays: 1 (250 Vac/up to 1 A, 30 Vdc/up to 1 A)

0-10V output, 4 to 20mA output

Frequency pulse output

Protection function

Overvoltage, under voltage, current limit, over current, overload,

electric thermal relay, overheat, Stall prevention, parameter lock

AC70 VC CONTROL FREQUENCY INVERTER MANUAL OVERVIEW

keypad

Display

LED Display

One line digit-segments LED display to monitor 1 running status

Double line digit-segment display to monitor 1 running status

Parameters copy upload and download parameter code to achieve easy copy

Monitor Function

Output frequency, Frequency set point, Out current, Output voltage,

motor speed, PID feedback value, PID given setting, IGBT module

temperature, I/O terminal status.

Alarms

Overvoltage, under voltage, over current, short circuit, phase loss,

over load, over heat, stall prevention, current limit, parameter lock

damage, running status at present alarm, past trip alarm

Environment

Installation Site

Indoor, Altitude should less than 1000m, Free corrosive gases and

direct sunlight

Running Temperature,

humidity

-10～+40°C ( wall mounting),

20% to 95% RH (No condensation)

Vibration Less than 0.5g when frequency less than 20Hz

Storage Temperature -25—+65°C

Installation mode Wall-mounted mode, floor stand cabinet install

Protection Degree IP20

Cooling Method Forced air-cooling

Table 1: Technical Specification

AC70 VC CONTROL FREQUENCY INVERTER MANUAL BEFORE USE

Chapter 2 Before Use

2.1 Purchase Inspection

Pls check whether any package is damaged while receiving the product you ordered. If the package is ok, pls open it

and check the inverter. If damage caused in transport, it is not duty of Veichi company. But please contact Veichi or the

transport company immediately.

After checking the product, please also check if the model is the one you ordered.The model of the product is on the

nameplate “MODEL”column. If the model is not in accordance with your need, please contact the agent or the sales

departments in our company.

2.2 Nameplate

Nameplate position and content

MODEL： AC70-T3-011G/015P SOURCE: 3

380V 50/60Hz

OUTPUT1

： 11KW 25A 0.00-400.0Hz

SER NO:

OUTPUT2

： 15KW 32A 0.00-400.0Hz

G models output

Model

P models output

Input power

Production series no

******************

Chart 2-1: AC70 series inverter nameplate

Model explanation

AC70 - T 3 - 011 G /015 P

2 220V 3 380V 6 660V

G P Z

7R5

011

015

7.5 11 15

018 022 030

18.5 22 30

1140V

AC70

Cabinet with base

code

voltage class

three phase

single phase

code

voltage class

code

inverter type

general format

blower and water pump

plastic machine

draw bench

mid inverter governor

code

fit power of motor(kW)

General use

inverter series

Chart 2-2: AC70series inverter nameplate meaning and naming rules

AC70 VC CONTROL FREQUENCY INVERTER MANUAL BEFORE USE

2.3 Rated Output Current

Input voltage 220V 380V 660V 1140V

Rated power (kw) Rated output current (A)

0.4 2.5

0.75 4 2.3

1.5 7 3.7

2.2 10 5.0

4 16 10

5.5 20 13

7.5 30 17 10

11 42 25 15

15 55 32 18

18.5 70 38 22

22 80 45 28

30 110 60 35

37 130 75 45 25

45 160 90 52 31

55 200 110 63 38

75 260 150 86 52

90 320 180 98 58

110 380 210 121 75

132 420 250 150 86

160 550 310 175 105

185 600 340 198 115

200 660 380 218 132

220 720 415 235 144

250 470 270 162

280 510 330 175

315 600 345 208

355 670 380 220

400 750 430 260

450 810 466 270

500

860 540 325

560 990 600 365

630 1100 680 400

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

Chapter 3: Installation and Wiring

3.1 Safety Precautions

This chapter explains the warnings for safe use and stable running of the product.

Cautions in use

●While install the inverter in the closed cabinet, please build in cooling fan, air-conditioner or

other cooling equipment to ensure the temperature at the air-in port below 40℃. So that the

inverter can work safely and reliably.

●While installing, please use cloth or paper cover the inverter to prevent metal dust, oil, water

and others.And remove it carefully after working.

● While operation, please follow the ESD regulations. Otherwise, the inverter may be

damaged.

● While multi inverters are installed in the same cabinet, enough space must be left for cooling

fan.

●Inverter can not work over rated range.Otherwise, the inverter may be damaged.

●While transporting the inverter, please hold the firm case. If only hold the pre-cover, there is

danger of inverter main body falling, injury or inverter damage.

Cautions in use motor

●Different motor has different max allowable running speed. Motor can not run over the max

allowable running speed.

●While inverter is running at low speed, the motor auto-cool effect is seriously worse. If motor

runs at low speed for long time, it will be damaged for overheat. If needed, please use special

motor for inverter.

●While constant speed machinery runs at inconstant speed, there maybe sympathetic vibration.

Please install vibration-proof rubber under motor rack or use jumping frequency control

function.

●While using frequency inverter or working frequency power supply to drive, the torque

characteristic are different. Please do confirm the torque characteristic of the equipment

connected.

●The rated current of shift gear motor is different from that of standard motor. Please confirm it

and choose the right frequency inverter. Moreover, please do switch the pole while the inverter

input current is 0. Otherwise it may bring inverter protection or damage.

●The rated current of diving motor is higher than that of standard motor, please confirm it and

choose the right inverter.

●While the wire between motor and inverter is long, the max torque of the motor will reduce for

voltage drop. So please use thick cable while the distance between the motor and the inverter

is long.

3.2 Treatment for Inverter after Longtime Store

If the inverter store time is over one year, you must pre-charge the aluminum capacitor in the inverter again and install

the inverter after the aluminum capacitor characteristic recovering. For the specific method, please follow the grads in

the chart below and give corresponding proportional voltage for every grad more than 30 mins while the inverter is

no-load.

If the input voltage of one grad is at the action critical point of contactor, fan or other equipment, please increase or

reduce the corresponding input voltage for the grad to avoid any component working under critical state.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

Chart 3-1: treatment for inverter after longtime store

3.3 Inverter Stable Running Environment

Installation environment is very important to the best use of this product for long time. Pls install this product in the

environment as the following table requirement.

Environment Requirement

Install place Indoor without direct sunshine

Install temperature -10 ～ +40℃

Store temperature -20 ～ +60℃

Humidity <95%RH, no condensation

Surrounding

Please install the inverter in place as follows:

● Place without oil mist, corrosive gases, flammable gas, dust or etc.

● Place without metal dust, oil, water or etc into inverter (please do not install inverter on

flammable material such as food and etc).

● Place without radioactive material or flammable material.

● Place without poisonous gases or liquid.

● Place with very little salification erosion.

● Place whihout direct sunshine.

Altitude <1000m

Vibration

<10～20Hz:9.8m/s2 <20～55Hz:5.9m/s2

Installation and

cooling

● Inverter can not be installed horizontally must be installed vertically.

● Please independently install high heating equipments such as braking resistor and etc which

can not be installed in the same cabinet with inverter, installed at the air-in port of the inverter

is strictly prohibited.

Table 3-1:AC70 series inverter running environment condition

● In order to improve the product stability, pls do not use the inverter where temperature changes sharply. While

using in closed space such as control cabinet, please use cooling fan or air-condition to cool inverter to avoid

temperature over limit range. Please also prevent inverter from freeze, too low temperature may cause components

freeze fault.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

● Derate according to the chart while over temperature limit.

100

4020100-10 50

TEMPERATURE(℃)

PERMIT OUTPUT CURRENT(%)

Chart 3-2:AC70 series inverter derating surve while over permit temperature

● Derate according to the chart while over altitude limit.

0 1000 2000 4000

100

3000 ALTITUDE(M）

PERMIT OUTPUT CURRENT(%)

Chart 3-3:AC70 series inverter derating surve while over permit altitude

3.4 EMI Protection

The inverter is designed to be used in industrial environment with strong electromagnetic interference. Generally

speaking, if the installation quality is good, it is ensured that the inverter can work safely without fault. Please install the

inverter according to the following rules to ensure stable running and avoid electromagnetic interference impact.

● Ensure that all equipments in the cabinet have been connected reliably to the common Y-type earth point or earth

bus with thick and short cable. The motor earth should be as close as possible. Please do not connect the motor

case to the inverter earth terminal or the protective area of control system.

● Ensure that all equipments connected to the inverter have been reliably connected to the same earth net or Y-type

earth point with thick and short cable.

● The conductor has better to be flat and with multi core, what has lower resistance at high frequency.

●The cutting terminal should be as soigne as possible. Unshielded wire section must be as short as possible.

● In control cable wiring, it should be as far from the power supply cable and motor cable as possible. And

independent cable trough should be used. While the control cable must cross to the power supply cable or motor

cable, it should be 90º vertical cross.

● Ensure that the contactor in the cabinet has wave surge suppresser. Or‘R-C’damping circuit is connected to the

winding of AC contactor. Voltage dependent resistor corresponding to the winding voltage is used. And freewheel

diode or components such as voltage dependent resistor corresponding to the winding voltage are connected to DC

contactor. It is very important while contactor, controlled by output relay of inverter, acts frequently.

● Cable connected to motor should be shielded cable or armoured cable. The two barriers are earthed reliably by

cable grounding card.

● Build noise filters at the input side to reduce electromagnetic interference from other equipments at the power grid

side. The noise filter should be as close to the inverter power input terminal as possible. Meantime, the filter must

earth reliably as the inverter.

● Build noise filters at the output side to reduce radio interference and inductive disturbance. The noise filter must be

as close to the inverter output terminal as possible. Meantime, the filter must earth reliably as the inverter.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

● Anytime, control circuit wire should be shielded cable.

● Add zero phase reactor in power supply wire near inverter input terminal and add zero phase reactor in the motor

wire near inverter output terminal to reduce electromagnetic interference to the inverter efficiently.

● Earthing Right and reliable earthing is the basic condition of safe and reliable running of the product. For right

earthing, please read the following notice carefully.

●In order to avoid electric shock, earthing cable should be the size as electric

equipment technique standard required and cable length should be as short as

possible. Otherwise, inverter leakage current will cause unstable potential of the

earthing terminal which is far from the earthing point, and electric shock accident will

happen frequently.

●Earth terminal must be earthing. Earth resistance must be below 10Ω. Otherwise,

there is danger of death.

● Please do not share earth cable with welder or other big current/pulse power

equipment. Otherwise, inverter will act abnormally.

●While multi inverters are used at the same time, please do not wind the earth wire to

loop-type. Otherwise, inverter will act abnormally.

Chart 3-4: multi AC70 series inverters united earthing

Chart 3-5:AC70 series inverter system earthing

Remark: motor must earth as close as possible. Motor case can not be connected to the inner earth terminal of the

inverter. It also can not share the earth net with the control system.

● Shield of inverter power cable, motor cable, control cable Cable

Shielding layer (reticulate/armoured) should be winded reliably by cable earth card and fix to inverter earth piece by bolt.

Please refer to the following chart.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

Chart 3-6:Cable earth card for cables earthing

●Corresponding relationship between inverter/motor cable length and carrier frequency.

While cable distance between inverter and motor is long (especially low frequency output), cable voltage drop will make

motor torque reduce. Further more, cable HF leakage current will increase. Then inverter output current will increase,

that will cause inverter over-current trip. The current detection accuracy and running stability will be impacted. Please

follow as below table to adjust carrier frequency according to the cable length. While the cable distance is over 100m,

please adopt distributed capacity reduce measure (Such as “no metal conductor covers cable”, “wire each phase cable

apart” and so on).

Cable length <20m 20~50m 50~100m >100m

Carrier frequency 0.7~15kHz 0.7~8kHz 0.7~4kHz 0.7~2kHz

Table 3-2: Corresponding relationship between inverter/motor cable length and carrier frequency

3.5 Machinery Installation

Installation notice and related requirement

● AC70 inverter components

Chart 3-7:AC70 series inverter components

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

● Installation direction

To prevent inverter cooling effect reducing, please do install the inverter vertically.

Chart 3-8:AC70 series inverter installation direction

● Installation space

Single machine installation: to ensure enough ventilation and wiring space for inverter cooling, please follow installation

conditions as follows. The back of the inverter should stick to the wall. So that the surrounding air of radiator can flow

freely to ensure the cooling effect.

Chart 3-9:Single AC70 series inverter installation space

Multi inverters paratactic installation: while installing multi inverters in cabinet, please ensure installation space as

follows.

Chart 3-10: Multi AC70 series inverters paratactic installation space requirement

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

Dimension of Inverter and Keyboard

W W1

Inverter model

Inverter size Install size

Install

aperture

W H D D1 W1 H1

AC70-S2-R40G

122 182 154.5 145 112 171 ф5 AC70-S2-R75G

AC70-S2-1R5G

AC70-S2-2R2G

159 246 157.5 148 147.2 236 ф5.5

AC70-S2-004G

AC70-S2-5R5G 195 291 167.5 158 179 275 ф7

AC70-T3-R75G/1R5P

122 182 154.5 145 112 171 ф5

AC70-T3-1R5G/2R2P

AC70-T3-2R2G/004P

AC70-T3-004G/5R5P

159 246 157.5 148 147.2 236 ф5.5

AC70-T3-5R5G/7R5P

AC70-T3-7R5G/011P

195 291 167.5 158 179 275 ф7

AC70-T3-011G/015P

AC70-T3-015G/018P

（plastic cover machine）

230 330 200 190 208 315 Ф7

AC70-T3-018G/022P

（plastic cover machine）

AC70-T3-022G/030P

（plastic cover machine）

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

W1 D

Install aperture

Inverter model

Inverter size Install size

Install

aperture

W H D H2 W1 H1

AC70-T3-015G/018P

（steel cover machine）

235 345 200 311 160 331.5

ф7

AC70-T3-018G/022P

（steel cover machine）

AC70-T3-022G/030P

（steel cover machine）

255 410 225 370 180 395 Ф7

AC70-T3-030G/037P

AC70-T3-037G/045P

305 570 260 522 180 550 Ф9 AC70-T3-045G/055P

AC70-T3-055G/075P

AC70-T3-075G/093P

380 620 290 564 240 595 ф11 AC70-T3-093G/110P

AC70-T3-110G/132P

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

Inverter model

Inverter size Install size

Install

aperture

W H D H2 W1 H1

AC70-T3-132G/160P 500 780 340 708 350 755 ф11

AC70-T3-160G/185P

650 1060 400 950 400 1023 ф16 AC70-T3-185G/200P

AC70-T3-200G/220P

AC70-T3-220G/250P

750 1170 400 1050 460 1128 ф18 AC70-T3-250G/280P

AC70-T3-280G/315P

AC70-T3-315G/355P

850 1280 450 1150 550 1236 ф20 AC70-T3-355G/400P

AC70-T3-400G/450P

NOTE: Without build-in dc reactor

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

Inverter model

Inverter size Install size

Install

aperture

W H D H1 W1 D1

AC70-T3-160GD/185PD

650 1600 400 1500 492 332 ф14 AC70-T3-185GD/200PD

AC70-T3-200GD/220PD

AC70-T3-220GD/250PD

750 1700 400 1600 582 332 ф14 AC70-T3-250GD/280PD

AC70-T3-280GD/315PD

AC70-T3-315GD/355PD

850 1800 450 1700 622 382 ф14 AC70-T3-355GD/400PD

AC70-T3-400GD/450PD

NOTE: With build-in dc reactor

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

Inverter model

Inverter size Install size

Install

aperture

W H D H1 W1 D1

AC70-T3-450G/500P

1200 1850 550 1750 960 466 ф14 AC70-T3-500G/560P

AC70-T3-560G/630P

Table 3-3:AC70 series inverter dimension

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

Keyboard dimension

Chart 3-11:AC70 series inverter 1 line LED keyboard dimension

Chart 3-12:AC70 series inverter mouth for 1 line LED keyboard dimension

114.5

65.5

19.5

16.5

17.1

110.5

63.5

35.6

53.75

Chart 3-13:AC70 series inverter 2 line LED keyboard dimension

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

119

111

142

Mouth for keyboard with box

AC70-T3-160G/630P

Mouth for keyboard with box

AC70-T3-015G/132P

Mouth for keyboard with box

Chart 3-14:AC70 series inverter mouth for 2 line LED keyboard dimension

Note: LCD keyboard total same size as LED keyboard.

Dismantle and install tail-hood

Installation: First the tail-hood upwardly inclines around 15

degrees and inserts the top fixed flat into the fixed hole in the

front cover. Then slightly press the tail-hood downward. While

your hear "Ka", it means that the tail-hood is into the place.

Chart 3-15:AC70 series inverter tail-hood installation

Dismantlement: At the tail of the frequency inverter, there is a

special dismantlement hole design. Put your finger into the

hole, upwardly pull the cover with a little force until the buckle

between the tail-hood and the crust tear off, and then remove

the tail-hood down.

Chart 3-16:AC70 series inverter tail-hood dismantlement

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

Dismantlement and installation of keyboard

Chart 3-17:AC70 series inverter keyboard installation and dismantlement

3.6 Electric Installation

This chapter explains the regulations that users have to obey to ensure safe use, best performance and reliable

running.

Safety precaution

● Must earth reliably while inverter is running. Otherwise there is danger of casualty and

unstable inverter performance.

● To ensure safe running, only trained professional person can do installation and wiring

job.

● No operation under power connected state. Otherwise there is danger of electric shock

even death.

● Before operation, please cut all related equipments power, ensure that the main circuit

DC current has dropped to safe range. And please operate after 5 mins.

● Control cable, power cable and motor cable must be separated. They can not be in the

same cable trough or cable rack.

● This equipment can only be used as the maker states. Please consult Veichi while using

in special case.

● No insulation test for the inverter or the related cable by HV insulation test equipment.

● If the inverter or the peripheral equipment (filer, reactor and etc) needs insulation test,

firstly 500V megohmmeter should be used to test the insulation resistance which should

not be lower than 4MΩ.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

Standard diagram

● Standard diagram

Note1

Note:multiple function digtal input default setting

TA TB TC

+24V

2 0

1 0

GND

A01

VR mini

2Kohm

Analog curr ent Input

+10V

Frequency reference setting input

VS2 GND

AS VS1

twisted-pair shielding line (grounding nearby)

pulse input

PUL

Multi-function digital input

COM

X3 X4

X1 X2

PLC

+24V

Frequency Inverter

GND

A02

coil

COM

passive source output

AC220V

AC0V

J1 J2

switch

Maximum output:

3A/240VAC 5A/30VDC

2. VS1/VS2 terminal resistor valuve 89ohm

1 Maximum output 50mA +10V input terminalNote

：

2 Maximum output of Y1/Y2 DC24V/50mA

Note

：

Mark：

1. stand for main loop terminal

(Forward Run/Stop)

（0~5V)/（0~10V)

（0~20mA)/（4~20mA)

3AS terminal resistor valuve 250ohm

J4 J5

(Reverse Run/Stop)

(Jog run forward)

(Jog run Reverse)

(Free stop)

(Fault reset)

Note3

Analog voltage Input

twisted-pair shielding line (grounding nearby by inverter)

Note: 1

Maximum output of +24V

terminal-DC 24v/100mA

Pin switch

coil

twisted-pair shielding line (grounding nearby by inverter)

Note2

Note: Maximum output is 2mA when

A01/A02 as for frequency voltage signal output

2. stand for control loop terminal

collector type status output

analog monitor signal output

Chart 3-18:AC70 series inverter standard diagram

Note: 1.NPN or PNP transistor signal can be selected as input of multi-function input terminal（X1~X6）. Inverter

built-in power supply (+24V terminal) or external power supply (PLC terminal) can be chosen as bias

voltage. Factory setting ‘+24V’ short connect with ‘PLC’.

2. Analog monitor output is special output of meters such as frequency meter, current meter, voltage meter

and etc. It can not be used for control operations such as feedback control.

3. As there are multi pulse styles, please refer to the line connect mode description details.

● Auxiliary terminal output capacity

Terminal Function definition Max output

+10V

10V auxiliary power supply output, constitutes loop

with GND.

50mA

A01/A02 Analog monitor output, constitutes loop with GND.

As frequency,voltage signal, max

output 2mA

+24V

24V auxiliary power supply output, constitutes loop

with COM.

100mA

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

Y1/Y2

Collector open circuit output, can set the

action-object by program.

DC24V/50mA

TA/ TB/TC

Passive connector output，can set the action-object

by program.

3A/240VAC

5A/30VDC

Table 3-4:AC70 series inverter auxiliary terminals output capacity

● Switch terminals connection function specification Switch

terminal

Optional

position

Picture example Function specification

（K2）

(AO2)

0.0～50kHz open collect pole pulse

frequency output

(AO2) 0～20mA current output or 4～20mA current output

(AO2) 0～10V voltage output

(K1)

J4 connect

(AO1) 0～10V voltage output

J5 conne

(AO1) 0～20mA current output or 4～20mA current output

(K3)

J6 conne

RS485 communication initial port connect matching resistor 120Ω

J7 conne

Matching resistor disconnect

Table 3-5:AC70 series inverter switch terminal connection function specification

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

Main circuit wiring

● Main circuit wiring

Chart 3-19：AC70 frequency inverter main circuit wiring

Note: 1, Fuse, dc reactor, braking unit, braking resistor, input actor, input filter,output reactor, output filter are optional parts, please refer to “peripheral equipment”. 2, P1 terminal and (+) short connect. If need add dc reactor, please take away the short connect part between P1 and (+).

Main circuit terminals

● Main circuit terminals array and definition

Arrangement sequence of main circuit terminal with 18.5kW or less power(15 ~ 18.5KW for steel cover machine)

(-)

TSR

UWV

(+)

Arrangement sequence of main circuit terminal with 15-22KW(15~22KW for plastic cover machine）

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

Arrangement sequence of main circuit terminal with 22~30KW (standard machine without PB terminal）（22KW for steel cover machine）

Arrangement sequence of main circuit terminal with 37~110kW

Arrangement sequence of main circuit terminal with 132kW： Arrangement sequence of main circuit terminal with 160~560kW

Terminal Name

(-)

DC power terminal

DC power output, (-) means DC bus cathode, (+) means DC bus anode, used for external braking unit.

(+)

Braking resistance terminal Used for external braking resistance to realize quick stop.

DC reactor terminal Used for external DC reactor.

(+)

Inverter input terminal Used to connect 3-phase AC power supply. S

Inverter output terminal Used to connect the motor. V

Earth Earth terminal, earth resistance<10 OHM

Table 3-6:AC70 series inverter main circuit terminals array and definition

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

● 3-phase 380V machine main circuit wiring

Model

Main circuit terminals

screw specifications

Suggested fixed

moment (N·m)

Suggested Copper-core cable

specification mm

(AWG)

AC70-T3-R75G/1R5P M4

1.2～1.5

1.5mm2(14)

AC70-T3-1R5G/2R2P M4 1.2～1.5 2.5mm2(12)

AC70-T3-2R2G/004P M4

1.2～1.5

2.5mm2(12)

AC70-T3-004G/5R5P M4 1.2～1.5 4mm2(10)

AC70-T3-5R5G/7R5P M4

1.2～1.5

6mm2(9)

AC70-T3-7R5G/011P M5 2～2.5 6mm2(9)

AC70-T3-011G/015P M5

2～2.5

10mm2(7)

AC70-T3-015G/018P M6 4～6 10mm2(7)

AC70-T3-018G/022P M6

4～6

16mm2(5)

AC70-T3-022G/030P M8 8～10 16mm2(5)

AC70-T3-030G/037P M8

8～10

25mm2(3)

AC70-T3-037G/045P M8 8～10 25mm2(3)

AC70-T3-045G/055P M8

8～10

35mm2(2)

AC70-T3-055G/075P M10 11～13 35mm2(2)

AC70-T3-075G/093P M10

11～13

50mm2(1)

AC70-T3-093G/110P M10 11～13 50mm2(1/0)

AC70-T3-110G/132P M10

11～13

70mm2(2/0)

AC70-T3-132G/160P M10 11～13 95mm2(3/0)

AC70-T3-160G/185P M12

14～16

95mm2(4/0)

AC70-T3-185G/200P M12 14～16 120mm2

AC70-T3-200G/220P M12

14～16

150mm2

AC70-T3-220G/250P M12 14～16 150mm2

AC70-T3-250G/280P M12

14～16

185mm2

AC70-T3-280G/315P M12 14～16 185mm2

AC70-T3-315G/355P M16

20～23

240mm2

AC70-T3-355G/400P M16 20～23 240mm2

AC70-T3-400G/450P M16

20～23

300mm2

AC70-T3-450G/500P M16 20～23 400mm2

AC70-T3-500G/560P M16

20～23

400mm2

AC70-T3-560G/630P M16 20～23 500mm2

Note: Here we suggest to use copper joins as mains electric connectors of machine over 185KW. Pls refer the cut section area above.

Table 3-7: Suggested cable diameter and fixed moment 3-phase 380V machine main circuit

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

● Single-phase 220V machine main circuit wiring

Model

Main circuit terminals

screw specifications

Suggested fixed

moment (N·m)

Suggested Copper-core cable

specification mm2 (AWG)

AC70-S2-R40G M4 1.2～1.5 1.5mm2(14) AC70-S2-R75G M4 1.2～1.5 2.5mm2(12) AC70-S2-1R5G M4 1.2～1.5 2.5mm2(12) AC70-S2-2R2G M4 1.2～1.5 4mm2(10)

Table 3-8: Suggested cable diameter and fixed moment single-phase 220V machine main circuit

● Suggested main circuit components specification

Model

Contactor

specification

Breaker

specification

DC reactor Input filter Output filter

AC70-T3-R75G/1R5P 10A 10A ------ NFI-005 NFO-010 AC70-T3-1R5G/2R2P 10A 10A ------ NFI-005 NFO-010 AC70-T3-2R2G/004P 16A 15A ------ NFI-010 NFO-010 AC70-T3-004G/5R5P 16A 20A ------ NFI-010 NFO-010 AC70-T3-5R5G/7R5P 25A 20A ------ NFI-020 NFO-020

AC70-T3-7R5G/011P 25A 30A ------ NFI-020 NFO-020

AC70-T3-011G/015P 32A 40A ------ NFI-036 NFO-036 AC70-T3-015G/018P 40A 50A ------ NFI-036 NFO-036 AC70-T3-018G/022P 50A 60A ------ NFI-050 NFO-050 AC70-T3-022G/030P 50A 75A DCL-50 NFI-050 NFO-050 AC70-T3-030G/037P 63A 100A DCL-80 NFI-080 NFO-080 AC70-T3-037G/045P 80A 125A DCL-100 NFI-100 NFO-100 AC70-T3-045G/055P 100A 150A DCL-110 NFI-100 NFO-100 AC70-T3-055G/075P 125A 175A DCL-125 NFI-150 NFO-150 AC70-T3-075G/093P 160A 200A DCL-150 NFI-150 NFO-150

AC70-T3-093G/110P 220A 250A DCL-200 NFI-200 NFO-300

AC70-T3-110G/132P 220A 300A DCL-200 NFI-200 NFO-300 AC70-T3-132G/160P 250A 400A DCL-300 NFI-300 NFO-300 AC70-T3-160G/185P 300A 500A DCL-300 NFI-300 NFO-300 AC70-T3-185G/200P 400A 600A DCL-400 NFI-400 NFO-400 AC70-T3-200G/220P 400A 700A DCL-400 NFI-400 NFO-400 AC70-T3-220G/250P 630A 800A DCL-500 NFI-600 NFO-600 AC70-T3-250G/280P 630A 1000A DCL-600 NFI-600 NFO-600 AC70-T3-280G/315P 630A 1200A DCL-600 NFI-600 NFO-600 AC70-T3-315G/355P 630A 1200A DCL-800 ------ -----AC70-T3-355G/400P 800A 1400A DCL-800 ------ -----AC70-T3-400G/450P 1000A 1600A DCL-1000 ------ -----AC70-T3-450G/500P 1000A 2000A DCL-1000 ------ ------

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

AC70-T3-500G/560P 1000A 2000A DCL-1200 ------ -----AC70-T3-560G/630P ------ 2000A DCL-1200 ------ ------

Note: For DC reactor, input filter, output filter and other components specification details and circuit mode, please refer

chapter 7 “peripheral equipments and options”

Table 3-9: Suggested mains fittings for 3-phase 380V machine

Control loop terminals

● Control loop terminals array

+10V

GND

TB TCTA

A02

X2 X5

VS1COM

Y2Y1

+24V PLC

COM

PUL

A+AS

GND

A01

VS2 B-

Sort Terminal Name Function definition

Passive

connection

output

TA Normally-open contact

Can set the action-object by programme.

Max contact capacity:3A/240VAC 5A/30VDC

TB Normally-closed contact

Common contact

State output

Y1 Collector open output 1

Can set the action-object by programme.

Max contact capacity:DC30V/50mA

Collector open output 2

Auxiliary

power supply

+24V Auxiliary power output +

Max output: 24VDC/100mA.

COM

Auxiliary power output -

Multi-function

contact input

X1 Multi-function contact input 1

Build-in photoelectric converter can set the

action-object by program.

Input condition: Max DC30V/8mA.

Note:Factory setting is common-collector

characteristic input. If need common-emitter

characteristic input, please remove the short

connector between“+24V” and “PLC”, then use

the short connector to connect “PLC” and “COM”.

Multi-function contact input 2

Multi-function contact input 3

Multi-function contact input 4

Multi-function contact input 5

Multi-function contact input 6

PLC

Multi-function

contact input common terminal

Pulse input PUL Pulse input

Pulse range:0.0～50.00kHz. Factory setting is

collector open output (R80,R82 transfer to

R81,R83 can be active input)

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

Analog output

A01 Analog output 1

Can set the action and object by program.

Physical type of output signal: 0~10VDC.

0~20mA , 4~20mA. It can be selected by

parameter [F-62] and J4,J5 (see table 3-5)

A02 Analog output 2

Can set the action-object by program. Physical

type of output signal: 0~10VDC. 0~20mA ,

4~20mA, It can be selected by parameter [F-62]

and J1 J2 J3 (see table 3-5)

Analog input

AS Current analog input

As inverter control signal or feedback signal, can

set the act range and response speed by

program. VS1/VS2 resistance:100KΩ; AS

resistance: 250Ω.

VS1 Voltage analog input 1

VS2 Voltage analog input 2

Signal auxiliary

power supply

+10V

Signal auxiliary power supply

terminal

Max output 10VDC/50mA

GND

Signal auxiliary power supply

terminal

Common auxiliary power of analog output,

analog input signal.

Communication

terminal

A+ Communication terminal A+

RS485 communication port

B- Communication terminal B-

Table 3-10:AC70 series inverter control loop terminals array and definition

● Control loop terminal wiring specification

Terminal

Bolt

specification

(mm)

Fixed moment

(N·m)

Cable

specification

(mm2)

Cable type

A+ B- M2.5 0.4~0.6 0.75

Twisted-pair

shielded cable

+10V GND A01 A02 VS1 VS2 AS M2.5 0.4~0.6 0.75

Twisted-pair

shielded cable

+24V COM Y1 Y2 TA TB TC PLC PUL

X1 X2 X3 X4 X5 X6

M2.5 0.4~0.6 0.75 Shielded cable

Table 3-11:Control loop terminal wiring specification

Braking unit (braking resistance) connection

● Brake resistance wiring of machine with 18.5KW or less power（15KW-18.5KW for steel cover machine）

(-)

(+)

Brakeing

resistor

Fig 3-20: AC70 Series Frequency Inverter Brake resistance wiring of machine with 18.5KW or less power

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

● Brake resistance wiring of machine with 15-22KW（for plastic cover machine）

Brakeing resistor

Fig 3-21: AC70 Series Frequency Inverter Brake resistance wiring of machine with 15-22KW（for plastic cover machine）

● Brake resistance wiring of machine with 22KW and 30KW(built-in brake is optional)（22KW for steel cover machine）

TSR

UWV

POWER INPUT MOTOR OUTPUT

Brakeing resistor

(-)(+)

Fig 3-22: AC70 Series Frequency Inverter Brake resistance wiring of machine with 22KW and 30KW(built-in brake is optional)（22KW for steel cover machine）

● Brake resistance wiring of machine with 37KW or above

TSR

UWV

POWER INPUT MOTOR OUTPUT

Dynamic Brake Unit

POWER

ACTIVE

Brakeing resistor

(-)(+)

Fig 3-23: AC70 Series Frequency Inverter Brake resistance wiring of machine with 37KW or above

● Suggested braking resistance specification parameters

Braking resistance value and power in the chart are decided according to common inertia load and intermittent braking

mode. While used in large inertia occasion or long time frequent brake occasion, please adjust resistance value and

power according to the inverter specification and the rated parameter of braking unit. If any problem, please consult

customer service department of Veichi Electric Com., Ltd.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

Three-phase 380V

Motor power(kW) Resistance value(Ω) Resistance power(W) Braking torque (%)

0.75 kW 750Ω

150W

100%

1.5 kW 400Ω 300W 100%

2.2 kW 250Ω 400W 100%

4.0 kW 150Ω 500W 100%

5.5 Kw 100Ω 600W 100%

7.5 kW 75Ω 780W 100%

11 k W 50 Ω 1,200W 100%

15 kW 40Ω 1,500W 100%

18.5 kW 32Ω 2,000W 100%

22 kW 28Ω 2,200W 100%

30 kW 24Ω 3,000W 100%

37 kW 20Ω 3,700W 100%

45 kW 16Ω 4,500W 100%

55 kW 13Ω 5,500W 100%

75 kW 9Ω 7,500W 100%

90 kW 6.8Ω 9,300W 100%

110 kW 6.2Ω 11,000W 100%

132 kW 4.7Ω 13,000W 100%

160 kW 3.9Ω 15,000W 100%

185 kW 3.3Ω 17,000W 100%

200 kW 3Ω 18,500W 100%

220 kW 2.7Ω 20,000W 100%

250 kW 2.4Ω 22,500W 100%

280 kW 2Ω 25,500W 100%

315 kW 1.8Ω 30,000W 100%

355 kW 1.5Ω 33,000W 100%

400 kW 1.2Ω 42,000W 100%

450 kW 1.2Ω 42,000W 100%

500 kW 1Ω 42,000W 100%

560 kW 1Ω 50,000W 100%

Single-phase 220V

Motor power(kW) Resistance value(Ω) Resistance power(W) Braking moment (%)

0.4 kW 400Ω

100W

100%

0.75 kW 200Ω 120W 100%

1.5 kW 100Ω 300W 100%

2.2 kW 75Ω 300W 100%

Table 3-12: Suggested braking resistance specification parameters of AC70 series inverter

● Build-in braking unit max braking performance

Braking unit of AC70 series product with low power can be selected according to the suggested braking resistance

specification parameters in table 3-11. In large inertia or long time frequent brake occasion, the moment maybe should

be increased. The max braking power is showed in the following table, the range of which can not be over in use.

Otherwise the equipment maybe destroyed. If any problem, please consult Veichi Electric Com., Ltd customer service

department.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

Three-phase380V

Inverter model Motor power Max braking current Min resistance

AC70-T3-R75G/1R5P 0.75 kW 3.5A 200Ω

AC70-T3-1R5G/2R2P 1.5 kW 3.5A 200Ω

AC70-T3-2R2G/004P 2.2 kW 7A 100Ω

AC70-T3-004G/5R5P 4 kW 10A 75Ω

AC70-T3-5R5G/7R5P 5.5 KW 10A 75Ω

AC70-T3-7R5G/011P 7.5 kW 14A 50Ω

AC70-T3-011G/015P 11 kW 17A 40Ω

AC70-T3-015G/018P 15 kW 23A 30Ω

AC70-T3-018G/022P 18.5 kW 28A 25Ω

AC70-T3-022G/030P 22 kW 30A (optional) 24Ω(optional)

AC70-T3-030G/037P 30 kW 35A (optional) 22Ω(optional)

Single-phase 220V

Inverter model Motor power Max braking current Min resistance

AC70-S2-R40G 0.4 kW 3.8A 100Ω

AC70-S2-R75G 0.75 kW 3.8A 100Ω

AC70-S2-1R5G 1.5 kW 6.5A 60Ω

AC70-S2-2R2G 2.2 kW 10.5A 40Ω

Table 3-13:AC70 series inverter build-in braking unit max braking power

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

Multi-function contact input connection

● NPN transistor connection mode

use inner 24v power AC70

+24V PLC X1 X2

COM

shielded cale

factory short connect

COM

X5 X6

X3 X4

PLC

+24V

dismantle 24v and PLC connector

exterior 24v power

AC70

exterior control signal

shielded cale

use exterior 24v power

Chart 3-24: NPN transistor digital input signal connection mode

● PNP transistor connection mode

X5 X6

X3 X4

PLC

+24V

AC70

use exterior 24v power

COMCOM

use inner 24v power

AC70

+24V PLC

X1 X2

shielded cale

exterior control signal

exterior 24v power

shielded cale

exterior control signal

Chart 3-25 PNP transistor digital input signal connection mode

Digital output signal connection

double shielded cable

COM

control exterior relay by inner 24V power of inverter

wind

+24V

COM

exterior 24v power

- +

COM

+24V

COM

double shielded cable

control exterior relay by inner 24V power of inverter

AC70

wind

Chart 3-26:AC70 series inverter digital output signal connection mode

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

Analog output signal connection

A02

GND

A02

GND

A01

double shielded cable

A01 as 0~10V output indicator

A02

GND

kHz

A02 as 0~10V output indicator

double shielded cable

double shielded cable double shielded cable

A02 as 0~20mA output indicator

A02 as 0.2~50KHZ output indicator

AC70

Chart 3-27:AC70 series inverter analog output signal connection mode

Connection of pulse input signal

COM

PUL

AC70

Connection of passive pulse signal input

+24V

Passive pulse

input

bias resistor

STP cable

pulse signal source

COM

PUL

COM

1.Bias resistor value calculation：

max pulse output current

pulse voltage

Explaination

：

pulse voltage

bias resistor value

PUL

COM

AC70

Connection of active pulse signal input

pulse signal source

STP cable

1.Bias resistor power calculation：

Chart 3-28: Pulse input signal connection mode of AC70 series inverter

AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING

Standby control system

Frequency inverter is composed of semiconductor, passive electronic component and driving part. All of them have

useful time, which means these parts may happen characteristic change or out of use in normal working environment.

And it will cause product fault. To avoid production stop led by the fault, we suggest preparing standby control system

when using the inverter.

Chart 3-29 is a standby control system for manual switch to power supply driving motor at inverter fault. Standby control

systems such as power supply Y/Δ step-down start way driving motor, power supply self-coupling reduction voltage

start mode driving motor, power supply soft start mode driving motor or standby inverter system can be chose to use

according the actual requirement and environment.

Chart 3-29: Standby control system of power supply directly driving mode

AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN

Chapter 4: Basic Operation and Trial Run

4.1 SafetyPrecautions

● No wiring while power supply is connected.Otherwise there is danger of electric shock.

● No operation while the cover is open.Otherwise, there is danger of electric shock.

● Please ensure reliable earth. Otherwise，there is danger of electric shock and fire.

● Before wiring please cut power supply of all related equipments and ensure main DC

voltage in safe range. And please do operation after 5 mins.

● Only professional trained person is allowed to operate this product.

● Please do not dismantle the inverter cover while it is electrified. Otherwise, there is danger

of electric shock.

● Please do not touch the printed circuit board of the inverter while it is electrified.

Otherwise, there is danger of electric shock.

● Please ensure reliable mains cable connection. If the mains cable is loose, there is danger

of fire caused by joint overheat.

● Before electrifying, please check the power voltage again. Wrong power voltage can

cause fault or damage the inverter, even cause fire.

● Please do not install inverter on flammable material or attach flammable material to the

inverter. Before electrifying, please clear the surroundings.

Important

● While operation, please follow the ESD regulations. Otherwise, the inverter maybe

damaged.

● Please don’t cut the power directly while the inverter drives the motor running. The power

can’t be cut until the motor totally stop. Otherwise, the inverter maybe damaged.

● Please don’t cut or connect motor while the inverter drives the motor running. The motor

can’t be cut or connect until the inverter output is 0. Otherwise, the inverter maybe

damaged.

● Control cable should be twisted-pair shielded cable. The barrier should be

connected to the inverter earth terminal reliably to prevent the inverter from abnormal

working.

● Unprofessional person can not operate, install, wiring, debug and maintain.

● Change, dismantle or maintain without permission may cause inverter damage. This case

is not within our quality assurance range.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN

4.2 Keyboard Layout and Functions Specification

● Keyboard appearance

● Key function

Key Name Function

Menu key

Enter menu while standby or running. Press this key to return while

modify parameter. While standby or running, press for 1 sec to enter

condition monitoring interface.

Confirm/modify

key

Press to modify parameter while in menu interface.Press again to confirm

after modifying. While standby or running, press to change LED

monitoring items at stop.

Up/down key

Select parameter group in menu interface. Modify parameter while in

modify interface. Modify given frequency, PID, given torque or magnetic

powder clutch given torque while at standby or condition monitoring state.

Shift key

Select digit of function no modified by up/down key；Select parameter

digits modified by up/down key. Change LED monitoring items while

standby or running.

Forward run key

While run/stop is controlled by keyboard, press this key, the inverter

forward rotate and the indicator is always on. While reverse, the indicator

sparks.

Jog/reverse key

This key function can be defined by parameter [E-08]. Press it, machine

reverses and indicator is off if this key is defined as REVERSE. Machine

will jog and indicator is on if this key is defined as JOG.

Stop/reset key

Machine stops if press it while run/stop is controlled by keyboard. Its

efficiency range is defined via function no [F-07]. Inverter resets if press it

in fault state (no reset if fault is not solved).

Keyboard

potentiometer

Can be used as input channel for given frequency, upper frequency limit,

given torque, given PID or PID feedback setting.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN

● Indicator light meanings

Name State Meaning

Unit indicator

light

Hz Spark Digital display given frequency.

Hz On Digital display output frequency.

A On Digital display actual output current.

V On Digital display input voltage.

V Spark Digital display output voltage.

S On Time unit is second.

S Spark Time unit is ms, min, or h.

RPM On Digital display motor speed.

% Spark Digital display given PID.

% On Digital display PID feedback.

State

indicator light

FWD On Inverter is forward rotating.

FWD Spark Inverter is reverse rotating.

FWD Off Inverter stops.

Function

indicator light

REV/JOG On Jog.

REV/JOG Off Reverse.

Chart 4-1: Indicator light meanings

● Number and character table

Chart 4-2：Number and character table

AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN

●LED keyboard stamp explain:

Stamp Explain

Frequency inverter stop

FWD

REV

JOG

REV second stamp

Remind press key

Cursor can up or remind up

Cursor can down or remind down

It flashing means fault

Arrowhead direction

Terminal not connect

Terminal connect

Two relay output: one on, another off

4.3 Basic Operation

4.3.1 Menu Structure and Operation

AC70 series frequency inverter parameter setting adopts 3 groups of menus which can be checked and modified easily. Three menus are basic parameter, external terminal parameter and special function parameters. Operation method:

PRG

Standy or running

Basic parameter

External terminal parameter

Special function parameters

PRG

Chart 4-1: FWD/REV and 3 groups of menus switch operation

Note: One line display and dual line display keypad has the same operation process and operation method.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN

4.3.2 State Display Switching

The LED display kinds of monitor parameters of AC70 series inverter in running or stop mode. User can uses [E-06, E-07] to select specific monitor parameters in one line display keypad, also can uses [E-06, E-07] to select upper line display and lower line display contents in two line display keypad. User can uses SET and shift key to see specific monitor parameter in one-way circulation in one line display keypad or in two line display keypad. Please refer to following operation flow chart.

1, One line display keyboard cycle switching display.

Chart 4-2: One line display keyboard cycle dislay

AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN

2. Dual line keypad cycle switching display monitor parameters operation flow chart.

PID feedback value

Giving frequency

RPM

Motor speed

Input vo lta g e

Motor speed

PID giving value

RPM

PID feedback value

PID giving value

Output c urrent

Input voltage

RPM

Output c urrent

Giving

Output

Off

SparkOn

RPM

Change first line parameter by cycle Change second line parameter by cycle

frequency

Output

SET

Chart 4-3: Dual line display keypad cycle di splay

AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN

4.3.3 Parameter Setting Mode

AC70 series frequency inverter best performance is based on parameter right setting. Here take［F-08］as a sample to

show how to set parameter for both small keyboard and big keyboard. 1, Small keyboard set mode

PRG

SET

PRG

SET

PRG

Stanby or running state

Enter menu

Function paramer no

Change digit

Find parameter no

Enter next menu

Change digit

Find paramerter no

Back menu

Enter parameter modify state

Change digit

Display parameter and spark

Change paramer value

Back

Confirm

Chart 4-4: Small keyboard parameter set

AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN

2, Big keyboard set mode

Function paramer no

Stanby or running state

Parameter val ue spark

Paramerter no

Parameter no

Back

Change digit

PRG

Find paramerter no

Change digit

SET

Enter next menu

Confirm

Enter parameter modify state

Change paramer value

Enter menu

Find parameter no

Parameter no

Parameter value

Pameter value

Parameter no

Paramerter no

Parameter value

PRG

SET

PRG

Chart 4-5: Big keyboard parameter set

AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN

4.4. Trial Run

● Trial run commissioning guide

Trial runn stop

Press stop/reset to stop

Press FWD to run

Set run command giving channel E- 01=0

Set start frequency E-28

Set run frequency giving channel E-02

whether motor and load if can dismout

Set E-00=0,choose vector control mode

Set E-00=1,choose VF control mode

Vector control mode

VF control mode

Rotational auto tunin g, H-62 is change to 1. Press FWD,wait fo r auto tuning stop

stationary auto tuning,H-62 change to 2. Press FWD,wait for auto tuning stop

Whether motor and load if can dismount

yes

check the direction,if wrong,change wire after cut

power or set E-46 to change the d irection

Start

Press JOG/REV to perform jog run

to motor nameplate and wiring

Set H-52 to H-56 ac cording

Check power connect if corret, motor wiring if correct

YesNo.

Chart 4-6: Trial run

AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN

● Parameter auto-tuning selection

Motor parameter auto-tuning

over

self-tuning finished,parameter H-57-H-61 renewed

detect fault cause,clear

fault ang try again

self-tuning fail ture, no parameter renew

fault alarm

yes

press FWD to start self-tuning

set H-62=2,static self-study, press SET to g waitting state

set H-62=1, rated self-study,press SET to enter self-tuning waitting state

load break off test

yes

set motor rated current H-56 according to nameplate

set motor rated speed H-54 according to

nameplate

check inverter power wire connection,check wire connection between inverter and motor,electrify

start

set motor rated votage H-55 according to nameplate

set motor rated power H-52 according to nameplate

set motor rated power H-53 according to nameplate

Chart 4-7: Parameter self-tuning selections

AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN

● Frequency giving flow

potentionmeter

giving

communication

potentionmeter

giving

reserve

optional card

keyboard digital

keyboard

terminal VS1

terminal VS2

analog AS given

terminal PUL

RS485 communication

program control

PID control

up/down control

RS485

terminal PUL

analog AS given

terminal VS2

keyboard

=10

keyboard digital

terminal VS1

=12

=11

terminal switch

=10

up/down control

PID running

PID control

program run

f1+f2*k

f1 priority f2

E-05

f≤f3

f＞f3

F0.11

f1-K*f2

max{f1.k*f2}

min{f1.k*f2}

f2+K*f1

=10

f2-K*f1

max{k*f1.f2}

min{k*f1.f2}

E-02

E-03

frequency giving auxilliary channel

frequency giving main channel selection

auxilliary channels calculation synthesize

frequency

output

frequency

Chart4-8：frequency giving flow

main frequency reference giving f1

auxiliary frequency reference giving f2

AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN

● Start/stop control flow

direct start

set frequency

constant speed

start frequency

accelerate

E-29

E-28

braking and start frequency start

set frequency

start frequency

constant speed

accelerate

E-29

DC baaking

E-38

E-28

start freq uency hold time

speed track restart

E-53

energy

baaking

stop

decel eatel

E-34

constant speed

stop output

E-36

braking time

DC baaking

start freque n c y

E-37

frequency

set

free stop

connect

open

（Xi=X0 X6）

terminal function 6

stop

start

run command

Output frequency

constant speed run

E-01

Chart 4-9: Start/stop control flow

AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN

● Open-loop VC control（speed mode）

over

yes

whether control performance reach es re quirment

trial run

according to chart 4-9,set start/stop control

set E-01 to choose run command giving channel

according to chart 4-8,set giving frequency

set E-00=0,choose VC control mode

If change motor or electrify for the first time, please self-tuning according to chart 4-7

start

adjust H-52 H-61 parameters to optimize VC control performance,to improve output torque/speed accuracy

Chart 4-10: Open-loop VC control

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FAULT DIAGNOSES AND PROCESSING

Chapter 5: Fault Diagnoses and Processing

This chapter explains the display content and processing of the inverter fault, alarm and operation fault. It also simply explains the bad situation caused by inverter or motor fault and how to solve it. For the adjustment guide in trial run, please refer this chapter too.

5.1 Fault Types

Type Inverter action while fault happens

Equipment fault

While inverter detection fault, the state likes this:

● Keyboard display character showing fault content.

● Inverter stops output. Motor stops free slide.

● While function F-31/F-32 is set as 1(fault output),Y1/Y2 terminals output valid open

collector digital output.

● While function F-30 is 1(fault output), TA-TC terminals output open passive digital

output.

● While there is fault as OL, OC, SC, OV, UL2, if [E-43] is not 0, the inverter will

automatically restart after E-44 setting time.

External fault

In certain application occasions, external related equipments fault signals are considered in the inverter control system as usage of monitoring, protection or switch control. At this time, if one multi function terminal is defied as “external fault”, the inverter stops output alarm signal.

5.2 Fault Information and Details

Keyboard

display

Fault

code

Fault type Possible causes Treatment

L.U.1

Too l ow

voltage while

stop

● Power supply is too low

● Voltage detection circuit is

abnormal

● Check input power,clear

fault.

● Seek support from factory.

E.LU2

Too low

voltage in run

● Power supply is too low

● Power capacitance is too

small, or there is big impact

current in the power grid.

● Inner DC main contactor is

not connect well

● Check input power,clear

fault.

● Improve power supply.

● Seek support from factory.

E.oU1

Accel.

over-voltage

● Power voltage fluctuation

over limit.

● Start when motor is

running .

● Detect power voltage and

clear fault.

● Restart motor until it

completely stop.Set E-30 as

1or2.

E.oU2

Decel.

over-voltage

● Deceleration time is too

short.

● Load potential energy or

inertia is too large.

● Power voltage fluctuation

over limit.

● Prolong Deceleration time.

● Reduce load inertia or

improve inverter capacitance or

add braking unit.

● Detect power voltage and

clear fault.

E.oU3

Constant

speed

over-voltage

● Power voltage fluctuation

over limit.

● Detect power voltage and

clear fault.

● Install input reactor.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FAULT DIAGNOSES AND PROCESSING

E.oU4

Over-voltage

while stop

●Power voltage fluctuation

over limit.

● Check input power,clear

fault.

● Seek support from factory.

E.oC1

Accel.

over-current

● Acceleration time is too

short.

● Start running motor.

● V/F curve setting is not

suitable.Or torque boost too

high.

● Inverter capacitance is too

small.

● Prolong acc time.

● Restart motor until it totally

stop.Set E-30 as 1or2.

● Reset V/F curve or torque

boost value.

● Select inverter with right

capacitance.

E.oC2

Decel.

over-current

● Deceleration time is too

short.

● Load potential energy or

inertia is too large.

● Power voltage fluctuation

over limit.

● Prolong Deceleration time.

● Connect external braking

resistance or braking unit.

● Select inverter with right

capacitance.

E.oC3

Constant

speed

over-current

● Sudden load change.

● Power grid voltage is too

low.

● Check load change and

clear it.

● Check input power,clear

fault.

E.oL1

Motor

over-load

● V/F curve setting is not

suitable. Or torque boost too

high.

● Power grid voltage is too

low.

● incorrect overload

protection setting.

● Locked-rotor run or too

heavy load.

● Universal motor long time

low speed run.

● Reset V/F curve or torque

boost value.

● Check input power,clear

fault.

● Unreasonable H-56 setting.

● Adjust load or select

inverter with right capacitance.

● If need long time low speed

run,please choose special

motor for inverter.

E.oL2

Inverter

over-load

● Load is too heavy.

● Acceleration time is too

short.

● Start running motor.

● V/F curve setting is not

suitable.Or torque boost too

high.

● Select inverter with right

capacitance.

● Prolong acceleration time

● Restart motor until it totally

stop.Set E-30 as 1or2.

● Reset V/F curve or torque

boost value.

E. SC

System

abnormality

● Acceleration time is too

short.

● Short circuit between

inverter output phases or earth.

● Module is damaged.

● Electromagnetic disturb.

● Prolong acceleration time.

● Check periphery

equipments and restart after

fault cleared.

● Seek support from factory.

● Check system wiring,

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FAULT DIAGNOSES AND PROCESSING

earth, shield and deal as

required.

E.oH

Inverter

over-heat

● Temperature is too high.

● Air channel is blocked.

● Fan connection parts is

loose.

● Fan is damaged.

● Temperature detection

circuit fault

● Make the environment

meeting the requirement.

● Clear the air channel.

● Check and re-connect the

wire

● Change the same new fan.

● Seek support from factory.

E.TE1

Motor static

detection fault

● Detection overtime

● Perform static detection

while motor is running.

● Capacitance difference is

too big between motor and

inverter.

● Motor parameter setting

mistake.

● Check motor connection

wire.

● Detect after motor stop

totally.

● Change inverter model.

● Reset parameter according

to nameplate.

E.TE2

Motor rotation

detection fault

● Detect while motor is

running.

● Detect with load.

● Detection overtime

● Capacitance difference is

too big between motor and

inverter.

● Motor parameter setting

mistake.

● Detect after motor stop

totally.

● Re-detect without load.

● Check motor connection

wire.

● Change inverter model.

● Reset parameter according

to nameplate.

93SE

Memory fault

● Electromagnetic disturb in

memory period.

● EEPROM damage.

● re-input and save.

● Seek support from factory.

LIFE Reserved ●Seek support from factory.

ERR1

Input phase

missing

● 3 input phase missing

● Check 3phase input power

and phase.

● Check 3phase input power wiring.

ERR2

Output phase

missing

● 3 phase output of inverter missing connection with motor

● Check wire between inverter and motor, earth and motor insulation.

ERR3

Current

detection fault

● Detect circuit fault.

● Phase imbalance

● Seek for technique support.

● Check motor and wiring.

ERR4

Inverter

external fault

● Peripheral equipment fault

protection.

●Check peripheral equipment.

ERR5

Swing

frequency

fault

● User not set right swing frequency running parameter.

● Set parameter again.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FAULT DIAGNOSES AND PROCESSING

ERR6

Keyboard

connect fault

● Keyboard wire fault.

● Keyboard component

damage.

● Check keyboard wire

● Seek support from factory.

E.CPE

Parameter

copy fault

● Parameter copy

communication is fault.

● Copy keyboard is not match

the inverter.

● Check wire.

● Select the specified

external keyboard model.

E.CE

RS485

communicatio

n fault

● Baud rate not right.

● Communication connection

not right.

● Communication format not right.

● Set right Baud rate

● Check communication

wiring

● Check Communication format

SEn

Feedback

sensor fault

● Alarm while PID analog value feedback signal is small than [H-28].

● PID feedback wire problem.

● Feedback sensor problem.

● Feedback input circuit

problem.

● Confirm sensor state,change it if problem

● Check wiring.

● Adjust feedback channel

signal

E.PAn

Keyboard

connect fault

● Keyboard wire fault.

● Keyboard component

damage.

● Check keyboard wire

● Seek support from factory.

E. EF

Inverter

external fault

● Peripheral equipment fault

protection.

●Check peripheral equipment.

E.PAn

Keyboard

connect fault

● Keyboard wire fault.

● Keyboard component

damage.

● Check keyboard wire

● Seek support from factory.

Chart 5-1: Fault information and details

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FAULT DIAGNOSES AND PROCESSING

5.3 Fault Diagnoses Process

System fault diagnoses process

reduced or not

valuecan be

system fault

yes

yes yes

yes

no no

Clear short circuit

Whether there is short circuit between outout terminal U/V/W and the motor

Short the cable or add outout reactor

Cable between output terminal U/V/W and motor

is too long that leakage current cause inverter protection

Clear disturbance

Is there serious electromagnetic disturbance?

While disconnect output wire and run,whether there is system fault alarm

Three phase outout voltage balance is ok or not?

Whether overload or not?

Connect load and operate as follows

Reduce load or enhance power

Display E.SC

while start

Display E.SC while stop

Display E.SC while

constant speed

Display E.SC while machine stop

Torque enhance value is suitable or not

Whether acceleration time is too short

Whether deceleration time is too short

Whether load change suddently

Torque enhance

ACC time can be

prolonged or not

Dec time can be prolonged or not

Reduce load change or enhance power

Reduce

Prolong setting time

Check braking mode, seek tec support

Reduce load or enhance power

Inverter fault or misaction caused by noises.Pls find technic support

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FAULT DIAGNOSES AND PROCESSING

Over current diagnoses process

Check braking mode and seek for technic support

Reduce load change or improve power

Whether set longer decelerationtime

Set longer acceleration time or not?

Prolong setting time

Whether load changes suddently

May fault or misaction caused by noise.Please find technic support

Is deceleration

time set too short?

Is acceleration time set too short?

Reduce the value

Whether torque enhance value is too

Can be reduced?

Reduce load or enhance power

Whether load is too large

Whether short circuit between output terminal

U/V/W and motor or earth circuit

Clear short circuit

yes

Constant speed over curent E.0C3

Decelerate over curent E.0C2

Accelerate over curent E.0C1

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FAULT DIAGNOSES AND PROCESSING

Over voltage diagnoses process

ACC over voltage(OU1)

DCC over voltage(OU2)

Constant speed over voltage(OU3)

Stop state over voltage(OU4)

Fower votage in fixed range or not

no no

yes

yes yes

yes

Reduce power voltage into fixed range

Clear short circuit

Phase or earth short cirsuit bwteen U/V/W and motor

Whether it stops while restart the motor

Whether act while load suddently changes to"0"

Whether DC circuit voltage of main loop is above protection value while act

Maybe inverter fault or misact.Plese seek for

technic support

Whether act while suddently stop ACC

Can prolong DCC time or not

prolong

ACC time can be prolong or not

Load intertia can be reduced or not

Whether used braking unit or DC braking function

Please check braking unit and seek for technic support

Use braking unit or DC braking function

Reduce

Stop motor and restart. Or DC braking,then start (E-30:1). Or speed track start(E-30:2)

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FAULT DIAGNOSES AND PROCESSING

Supply voltage is too l ow

yes

yes yes

Whether power off,including instant power off

Restart after reset

Change fault component and correct bad contact

Is there any fault component or bad contact in power circuit

Whether power voltage is in fixed range as required

Is there any big load start or stop under the same power supply

votage between DC circuit P+ and N- in main loop is over E-55 setting or not

Maybe inverter fault.please seek for technic support

Modify power supply system as required

Adjust E-55 setting

Voltage is too low while stop Lu1

Voltage is too low while running Lu2

Inner inverter over heat

Whether cooling fan works normally

Whether temperature display(C-09)is the same as the actual temperature

Whether load and carried frequency

E-20 setting are too high

Whether air cooling channels are air-logged

Whether the temperature is within the fixed range as required

Change fan

Maybe temperature ditection

circuit fault.please seek for technic support

Reduce load and carried frequency

Clear the air-logged channel

Adjust the temperature to the fixed range as required

Maybe machine fault or misact.seek for technic support

yes

Inner inverter overheat OH

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FAULT DIAGNOSES AND PROCESSING

Over load

yesyes

yes

Change torque improving

or V/F curve setting

Prolong ACC/DCC time

Restart after motor stop or change start mode E-30 to 1/2

Reduce load or improve capacity

Correct setting value

Change externa lthermal relay

Maybe inverter fault or misact.Please seek for technic support

Whether torque improving or V/F curve setting is suitable

Whether ACC/DCC time is too short

Whether the motor stops while restart

Whether load too high

Whether electric thermal relay overload relay setting E-50 is suiable

Whether electric thermal relay overload characteristic matches the motor overload characteristic

Motor overload OL1

Inverter overload OL2

No display

Inverter keyboard LED no display

Whether keyboard connect line is reliable

Whether power indicater linght on power board is on or not

Whether circuit breaker at power side is connect to contacter

connect

Whether power input terminals R/S/T is normal

Whether there is short connect or DC reactor between terminals P1 and P+l

Maybe

inverter fault or motor heat

caused by noise.Please find technic support

Short connect or connect DC reactor

yes

Find our the fault cause

and clear the fault

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FAULT DIAGNOSES AND PROCESSING

Motor heat

motor heat

Adjust torque imporoving value and V/F characteristic

Whether torque improving and V/ F characteristic are suitable or not

Whether motor continuously run at low speed

Reduce load or improve capacity

Whether load is too large

Use special motor for inverter

Whether output terminals U/V/W output voltage /current three phase balance well

yes

Maybe motor fault

Maybe inverter fault or motor heat caused by noise.Please find technic support

Motor does not rotate

yes

should be reduced.If there is braking or brake uni,

please check whethe r it is loose

Maybe motor is locked because of too large load.Load

value is suitable

Whether torqu e improving

Improve torque improving value

Motor fault

Whether

wiring is

correct or not

Whether load is too large

Is there voltage ou tput on output terminal U/V/W and three phase balance ok or not?

Correct connect

Maybe inverter fault .Please find technic support

It works after correct the upper frequency or given frequency

It works after chec king the cause and slving the problem

Have input frequency signal or not

It works after checking the cause and solving the problem

Have input command signal or not

Whether keyboard

displays faul t information

Work after solving fault and reset

Motor does not work

Whether upper frequency l imit E-10 or given frequency is lower than the start frequency E-28 setting

AC70 VC CONTROL FREQUENCY INVERTER MANUAL PERIODIC OVERHAUL AND MAINTENANCE

Chapter 6: Periodic Overhaul and Maintenance

6.1 Safety Precautions

This chapter explains the safety rules in overhaul and maintenance.

● No operation under power connected state. Otherwise there is danger of electric shock death.

● Before operation, please cut all related equipments power, ensure that the main circuit DC current has dropped to safe range. And please operate after 5 mins.

● No operation while cover/panel is dismantled. Otherwise there is danger of electric shock death.

● Do not dismantle the cover or PCB under power connected state. Otherwise there is danger of electric shock death.

● Only professional person can maintain or change fittings. Otherwise there is danger.

● Do not ware loose clothes while install, debug, maintain. Rated protective tools and

safeguard should be adopted.

● Tighten screw according to named moment. If main circuit wire connection is loose, there is danger of overheat fire.

● Machine and motor earth must be reliable. Otherwise there is danger of electric shock if touches the cover.

● While operation, please follow the ESD regulations. Otherwise the inverter maybe damaged.

● Do not change the circuit or structure of the inverter. Otherwise the inverter maybe damaged.

●Please confirm the rotate direction while no-load.Wrong direction can bring body injury or huge wealth loss.

● Do not use damaged machine. Otherwise there is danger of accident.

6.2 Overhaul

Frequency inverter is composed by semi-conductive component, passive electronic component and motive component. All of these components have useful life. Even under normal working environment, some of the components can not work after the life time. To avoid malfunction, daily checking, periodic overhaul, component changing and other maintenance should be carried out to prevent. We suggest one overhaul every 3-4 monthes after installation. The overhaul period should be shorter while under cases as below. High temperature, high altitude; Start and stop frequently; AC power supply or load fluctuates badly; With bad wave or impact; With dust, metal dust, salt, vitriol, chlorine; Bad store condition;

● Daily checking To avoid machine damage and to prolong life time, please check the following items every day.

Items Checking content Treatment

Power supply

Check if power supply meets the requirement and whether there is lack-phase.

Treat it as nameplate explains.

Surroundings

Check whether it meets the table3-1 requirement.

Make sure the problem and solve it.

Cooling system

Check whether the inverter or the motor heat or change color abnormally and cooling fan working state.

Check whether it overload. Tighten screw. Check whether cooling fan is dirty or rotate block.

Motor Check if there is abnormal vibration or noise.

Tighten machine and electric connection and lubricate the machine components.

Load

Check whether output current is over the rated value of the motor or the inverter and have lasted for a period.

Make sure whether it overload and whether the machine model is right.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL PERIODIC OVERHAUL AND MAINTENANCE

：No operation under power connected state. Otherwise there is danger of electric shock death. Before

operation, please cut all related equipments power, ensure that the main circuit DC current has dropped to safe range. And please operate after 5 mins.

● Periodic overhaul Under normal state, one overhaul every 3 or 4 months is ok. Please confirm the actual overhaul period according to the machine use condition and work circumstance while using the machine. Main circuit

Items Checking content Treatment

Whole body

Check insulated resistance; Check circumstance.

Tighten and change bad component; Clear and improve circumstance

Electric connection

● Check whether the wire and connector color changes, whether there is disrepair , crack color change or aging in insulated layer.

●Check whether the connect terminals are damaged or loose.

● Earth checking.

● Change bad wire.

● Fasten terminals and change bad

terminals.

● Measure earth resistance and fasten earth terminals.

Mechanical connection

● Check if there is abnormal vibration or noise or something is loose.

● Tighten, lubricate and change the bad machine components.

semi-conductive component

● Check whether there is dust or rubbish.

● If there is obvious out change?

● Clear

● Change damaged component

Electrolytic capacitor

● Whether there is liquid leak, color change,or creak? Whether there is safety valve outcrop, inflation, creak or liquid leak.

● Change damaged component

Peripheral equipment

●Peripheral equipment outlook and insulation checking.

●Clear and change damaged component

PCB

●Bad smell,color change, bad rust and connector checking.

●Fasten connector

●Clear PCB

●Change bad PCB

Cooling system

● Check whether the fan is damaged or blocked up.

●Whether rubbish and dust is sticked to the heat sink .

●Is air inlet/outlet blocked? Or is there something sticking to the inlet/outlet.

● Clear

● Change damaged component

Keyboard

● Whether is it damaged? Check whether display is complete.

● Change damaged component

Motor

●Check if there is abnormal vibration or noise.

●Tighten machine and electric connection and lubricate the machine components.

：No operation under power connected state. Otherwise there is danger of electric shock death. Before

operation, please cut all related equipments power, ensure that the main circuit DC current has dropped to safe range. And please operate after 5 mins.

6.3 Maintenance

All equipments and components have useful l ifetime. Right maintenance can prolong the lifetime. But it can not avoid damage. Please change the components before their lifetime over.

Component Useful lifetime Fan 2~3year

Electrolytic capacitor 4~5 year PCB 8~10 year

AC70 VC CONTROL FREQUENCY INVERTER MANUAL PERIODIC OVERHAUL AND MAINTENANCE

● Fan While changing fan, please use original fan. You can contact Veichi company or the dealer. There are inverter models with many fans in one machine. To prolong these machines lifetime, you had better change all fans while changing the cooling fan.

● Fan change method：

1, Install the fan vertically into t he cover as shown in the picture (the label should face the outside).

2, Press the elastic clip of the fan by finger toward the inner side and insert the leading terminal of the fan vertically by a little strength.

3, Insert the two elastic clips of the fan cover vertically into the fan installation slots.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL PERIODIC OVERHAUL AND MAINTENANCE

● Fan dismantlement：

1, Pinch the two elastic clips of the fan and pull out. Then dismantle the f an cover.

2, Press the elastic clip of the fan by finger toward the inner side and pull out the leading terminal of the fan vertically by a little strength.

3, Poke the clips toward the outside and detach the fan from the cover by a little strength.

：1, No operation under power connected state. Otherwise there is danger of electric shock death. Before

operation, please cut all related equipments power, ensure that the main circuit DC current has dropped to safe range. And please operate after 5 mins. 2, While the inverter is working, the heat sink temperature will be higher as the consumption. To prevent from scald, please do not touch the heat sink and do not change the fan until the temperature being safe. 3, To ensure the best performance of the inverter, please use the original fan.

●Other components

The replacement of the other components has strict requirements on maintenance technique and product familiarity. And they can not be used without strict detection after replacement. So we do not suggest the user to replace the ot her inner components. If they need to change indeed, please contact to the dealer or the sales department of Veichi electric company.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL PERIPHERAL EQUIPMENTS AND OPTIONS

Chapter 7: Peripheral Equipments and Options

7.1 Safety rules

User must obey to the following safety rules and related requirements while using the peripheral equipments and options.

● No operation under power connected state. Otherwise there is danger of electric shock death.

● Before operation, please cut all related equipments power, ensure that the main circuit DC current has dropped to safe range.And please operate after 5 mins.

● No operation whil e cover/panel is dismantled. Otherwise there is danger of electric shock death.

● Do not dismantle the cover or PCB under power connected state. Otherwise there is danger of electric shock death.

● Only professional person can install, debug or maintain the peripheral equipments and options. Otherwise there is danger.

● Do not ware loose clothes while install, debug, maintain. Rated protective tools and safeguard should be adopted.

● Do not change wire, dismantle jumping wire, optional card, or change cooling fan while the inverter is running. Otherwise there is danger of electric shock death.

● Tighten screw according to named moment. If main circuit wire connection is loose, there is danger of overheat fire.

● Earth of the peripheral equipments and options must be reliable to prevent human body injury.

● While operation, please follow the ESD regulations. Otherwise the inverter may be damaged.

● Do not cut the power supply while the inverter is outputting voltage. Otherwise the inverter may be damaged.

7.2 Peripheral Equipments

Normal peripheral equipments are showed as below. To order the peripheral equipments, please consult our dealer or sales department.

Peripheral equipment Functions

Breaker

Protect power system and prevent malfunction impact other

equipments working when short-circuit happens. And

over-load protection.

Leakage current breaker

Earth protection prevent electric shock(suggest to use the

type which can prevent high-frequency leakage current)

Electromagnetic contactor

Separate power and inverter indeed and realize basic relay

control.

AC input reactor

Improve power side factor and isolate the noise disturbance

to the frequency inverter from the power side.

DC reactor Restrain ultra harmonics and improve power factor.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL PERIPHERAL EQUIPMENTS AND OPTIONS

Input side noise filter

Reduce frequency inverter disturbance to the power and

reduce the power grid disturbance.

Braking resistor Passive energy consume unit of electric braking.

Consumption braking unit

Electric braking control unit, controlling the braking

resistance consume the regenerated electric power of the

motor efficiently.

Output side noise filter Reduce the output side wire electromagnetic disturbance.

Standby system Standby system for inverter malfunction.

Heat relay Protect the motor while over load.

0-phase reactor

Reduce electromagnetic disturbance of the frequency

inverter (suitable for input/output side).

Main loop surge absorbable unit

Restrain surge voltage while main loop switch components

act.

Winding surge absorbable unit Restrain surge voltage when the AC contactor acts.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL PERIPHERAL EQUIPMENTS AND OPTIONS

7.3 Use of Peripheral Equipments

Chart 7-1:Peripheral equipments connection fig Note: Wiring breaker

To ensure wiring safe, protect power system and prevent malfunction expand to impact other equipment working while short-circuit happens, and protect while over-load, please do use wiring breaker between power supply and main loop power input termi nals R,S,T.

: While choosing the breaker, the capacitance should be 1.5-2 times of the rated output current of the frequency inverter. Please compare the time characteristic and protective time to the inverter (150% of the rated output current, one minute). Make sure there will be no skip.

: Before main loop wiring, make sure to cut the breaker and electromagnetic contactor. Otherwise there is

danger of electric shock.

Leakage current breaker

The frequency inverter outputs peak voltage high-speed switch square wave. So there is high-frequency leakage current. For earth protection to prevent electric shock and leakage current fire, please install leakage current breaker. Usually, one set frequency inverter will bring 100mA leakage current (while the power cable length is 1m). If the length prolongs 1m, there will be 5mA more leakage current. So please use leakage current breaker special for high frequency leakage at the power input side of the frequency inverter. The factors which impact leakage current are as below: Capacitance of inverter Carrier frequency Motor cable type and wire length

AC70 VC CONTROL FREQUENCY INVERTER MANUAL PERIPHERAL EQUIPMENTS AND OPTIONS

MI/RFI filter

To protect human body and inverter, please choose leakage current breaker which can use AC/DC power and can face high frequency leakage current. There should be one leakage current breaker with more than 200mA sensitive current for every frequency inverter. If the frequency inverter outputs different wave, the high frequency leakage current can be higher, which will lead to breaker fault. In this case, please take below treatments: Improve the sensitive current of the leakage current breaker Reduce the carrier frequency of the inverter

Electromagnetic contactor

Electromagnetic contactor is a peripheral equipment what is set to actually separate power and inverter connection. While inverter protective function is acting or carrying out emergency stop operation, the main loop power can be cut by peripheral equipment. Please do not connect the electromagnetic switch or electromagnetic contactor to output circuit. Otherwise the inverter may be damaged. While the power recovers after instant stop, if it needs to prevent the inverter to auto-restart, please install electromagnetic contactor for control at the input side.

AC input reactor and DC reactor

To restrain current sharp change and high hypo harmonic current, it needs to use AC input reactor and DC reactor. It can also improve power factor at the input side. In the following cases, AC input reactor or DC reactor must be used (use both will bring better effect). Need to restrain high hypo harmonic current and improve power side factor; Need to switch input phase capacitance; Frequency inverter is connected to large capacitance power transformer (600kVA above); Silicon-controlled converters such as DC motor driver are connected to the same power system. If user has higher requirement on other harmonic restraint, please connect the external DC reactor. Before connect the external DC reactor, make sure to dismantle the short connector between the terminals P1 and (+).

Surge restrainer

Surge restrainer is divided into winding surge restrainer and main loop surge restrainer according to the use position. Pls choose the right one which is suitable for the occasion. The aim of surge restrainer installation is to restrain the surge voltage brought by switch components such as inductive load which is surrounding the frequency inverter (electromagnetic contactor, electromagnetic relay, electromagnetic valve, electromagnetic winding). Do not connect the surge restrainer to the output side of the frequency inverter. Otherwise the frequency inverter will be damaged.。

Input side noise filter

Rectifier bridge of the inverter is uncontrolled rectifier bridge. And input current is discontinuous impulse current. So the harmonic current noise signal, which flows to power wire from the inverter inner, may bring bad impact on the surrounding machines (radio, phone, non contact switch, sensor). This time, we suggest to install input side noise filter to lighten the noise into the power wire. Besides, it can also reduce noise from the power wire into the frequency inverter.

: Please use the noise filter special for the frequency inverter and the connection wire between the filter and

the inverter should be as short as possible.

Output side noise filter

The frequency inverter outputs square wave with high-speed peak value voltage switch. So there is high-speed dv/dt converter on the output cables that will produce a large number of radio disturbance and inductive signal. By installation noise filter at the output side, the impact can be relieved. Please do not install the input-phase capacitance and the noise filter to the output circuit. Otherwise there is danger of damage to the frequency inverter.

0-phase reactor

0-phase reactor is used to reduce the electromagnetic inductive disturbance of the frequency inverter, which is suitable for the input side and output side. It equals to a three-phase common mode inductance. In actual use, according to the actual magnetic core size and cable specification, it is better to make sure 3-5 circles winding ratio to bring the best performance.

Brakingreactororbrakingunit

Renewed power consumption unit, please see the sixth part of the chapter three “electric installation”.

Heat relay

Please install the heat relay at the output side of the frequency inverter. When the motor enters into overload state, it will cut the power source to protect the motor. While using one frequency inverter to run one motor, there is no need to install heat relay. The motor overload protection current [E-49] of the frequency will work. While using one frequency inverter to run multi-motors or the motor is run directly by the power grid, please i nstall heat relay between the frequency and the motor. While installing the heat relay, please design to cut the sequence control circuit of the MC at the main loop input side by the connection spot of the relay or design to input the heat relay action into the frequency inverter as the exterior malfunction.And please pay attention to the following tips to avoid heat relay fault and motor overheating at low speed.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL PERIPHERAL EQUIPMENTS AND OPTIONS

Run at low speed One frequency inverter run multi motors Motor cable is very long Detect malfunction mistakenly for carrier frequency is too high Low speed and heat relay In normal case, the heat relay is suitable for the universal motor. While using the frequency inverter to run the universal motor (standard motor), the motor current is 5-10% bigger, comparing wi th the commercial power supply. Besides, at low speed, even in the motor rated current range, the cooling capability of the fan driven by the motor axis will reduce, which will bring motor overheat. So please set the motor overheat protection current [E-49] in the frequency inverter to be valid. Motor cable is very long While the motor cable is very long and the carrier frequency is very high, impacted by the leakage current, the heat relay may fail. To avoid it, please reduce the carrier frequency or set higher detection value of the heat relay. Before enhancing the detection value, do confirm whether there is other cause for the motor overheat. Otherwise there is danger.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

Chapter 8: Function Parameters Specification

8.1 Basic Parameters Specification

E-00 control method selection

range:0-1

Default: 1

0: Open loop vector control without PG Also call sensorless vector control mode, are suitable for application one inverter drive one motor which need high performance control requirement. It can achieve fast torque response, wide speed control range and high torque output even under low speed without motor feedback.

Note: It needs to perform motor auto tuning with configure motor parameters correctly before first time running with this control mode.

1: V/F control mode Adjusting the speed with V/F ratio, Use this mode for simple speed control and for multiple

motor applications with low demands to dynamic response or speed accuracy. This control mode is also used when the motor parameters are unknown and Auto-Tuning cannot be performed. The speed control range is 1:40.

E-01

Running control command channel selection

Setting range:0-2 Default: 0

Uses for selecting inverter running, stop and running direction command input channel. 0: Operator keypad Running and stop of inverter control by forward running key FWD, reverse running or Job key REV/JOG and stop key STOP/RESET of operator keypad. When [E-08] parameters set to 0, REV/JOG is defined for reverse running, when [E-08] parameter set to 1, REV/JOG is defined for JOG running. 1: External terminal control Running, stop and rotation direction of inverter control by ON and OFF of FWD terminal or reverse terminal. Please refer to [F-08]. 2: RS485 Communications port control Running, stop and rotation direction of inverter control by given signal of RS485 control port.

Note: STOP/RESET of keypad, reset command from control terminal or RS485 communication are all enabled when fault reset. Tips: 1. The running direction of inverter control is disabled by this command when programming control

and (VS2) terminal input bipolar adjustment, direction control is valid.

2. STOP/RESET key function is programmable, it can be defined emergency stop button function when selecting external terminal control or RS495 control, refer to [F-07]; If use STOP/RESET button on keypad to stop inverter when selecting external terminal control, inverter will be stop and locked the external terminal command, it need to input external terminal stop command to unlock it, and then external terminal running command will be activated again. It is the same for RS485 communication control.

3. When selecting operator keypad control, direction control by external terminal takes is priority to control by keypad; it means that when reverse terminal and COM is on, if the direction command is changed by keypad, it will be keep the same original running direction after the terminal and COM is off.

E-02

Frequency reference given main channel selection

Setting range:0-12 Default: 1

It is used for selecting main frequency reference given of inverter, the frequency given will control or affect the output frequency of inverter; terminal (VS2) analog voltage signal and program control channel also will control the running direction of inverter directly. 0: Operator keypad digital Main frequency reference given by parameters [E-16] configuring: it is available to modify the [E-16] preset value via up/down arrow button on keypad when inverter in running status or stop state.

1: Potentiometer of keypad Main frequency given is determined by potentiometer of keypad. 2: Terminal VS1 analog voltage 0-10V Main frequency given determined by control terminal VS1 analog input,

Regarding the relationship between input analog and frequency, filter time of input analog, Please refer to parameters in detail [F-41, F-42, F-43, F-56, F-57, F-58] parameters

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

3: Terminal AS analog current signal 4-20mA Main frequency given is determined and modified by ( AS) analog current input; Regarding the relationship between input analog and frequency, filter time of input analog, Please refer to parameters in detail [F-50, F-51, F-52, F-56, F-57, F-58]. 4: Terminal VS2 analog voltage -10-10V Main frequency given is determined and modified by control terminal VS2 analog input, Regarding the relationship between input analog and frequency, filter time of input analog, Please refer to parameters in detail [F-44, F-45, F-46, F-47, F-48, F-49, F-56F, -57, F-58] 5: Pulse train signal Main frequency given is determined and modified by control terminal (PUL) analog input, Regarding the relationship between input analog and frequency, please refer to parameters in detail [F-53, F-54,

F-55, F-56, F-57, F-58] 6: RS485 communication port Main frequency given is determined by receiving signal of (A+) and (B-) of

RS485 communication port. 7: Up and Down control Main frequency given is determined by increasing UP and decreasing (DOWN) terminal connecting or disconnecting( ON/OFF) with COM terminal; each of multi- terminal ( X1-X6) can be programmed by frequency UP terminal and DOWN terminal, refer to [F-01-F-06] in detail; Initial frequency of up and down terminal control can be configured, please refer to parameter [F-07] LED ten digit option and [F-70]. The acceleration and deceleration time of UP and Down control running is determined by acceleration/ deceleration time 1 [E13-E-14] setting; The rate of speed change of Up and Down terminal is determined by acceleration/ deceleration time 2 [F-24-F-25] setting.

8: General PID operation Select it use to set up general PID close loop control system. When it has been applied, the [H-16] present setting value can be modified by up and down arrow button of keypad. 9: Constant pressure PID control It can be used to set up constant pressure PID control ( constant pressure water supply system etc) close loop system, the [H-16] present setting value can be modified by up and down arrow button of keypad. 10: Program running Main frequency given and rotation direction are configured by inverter’s inner simple PLC process control. Up to 8 steps speed control is available, more detail refer to [E-13, E-14, F-09-F-16, F-24-F-29,

H-32-H-51].

Run and stop command of program running determined by present setting value of running control command selection. When a step running time is set to 0, it means it will skip over this step when perform the program running. It is easy to set up the steps required of program running. When [E-46] parameter is set to 2 for forbidding reverse running, inverter will be run at 0 speed when arriving to a step which have been set to reverse running. Program running and multi-step speed operation are designed to achieve inverter variable-speed operation under a certain laws. Among the multi step operation, multi step speed switch over and rotation direction changing are achieved through the different combinations of external multi-step speed terminal with COM terminal ON and OFF. Multi step frequency, operation time, rotation direction can be defined by function parameters. Multi step speed control can be defined by each multi-function terminal, Please refer to [F-01-F-06] parameters. 11: Swing frequency run Output frequency periodically changes by pre-set decel & accel time. This function

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

is especially applicable to system which speed change vary with before and after the bobbin diameter in textile

field. 12: Terminal selection The main frequency given channel programmed by terminal selection, refer to the parameter [F-01-F-06] The relationship between terminal mode and frequency given channel as following table:

Frequency

given selection

terminal 4

Frequency

given selection

terminal 3

Frequency

given selection

terminal 2

Frequency

given selection

terminal 1

Frequency given channel

OFF OFF OFF OFF Operator keypad digital

OFF OFF OFF ON Potentiometer of keypad

OFF OFF ON OFF Terminal(VS1) voltage signal

OFF OFF ON ON Terminal (AS) current signal

OFF ON OFF OFF Terminal (VS2) voltage single

OFF ON OFF ON Terminal pulse train signal

OFF ON ON OFF RS485 communication port

OFF ON ON ON UP/Down control

ON OFF OFF OFF General PID operation

ON OFF OFF ON Constant pressure PID control

ON OFF ON OFF Program running

ON OFF ON ON Swing frequency run

Tips: Frequency reference terminal valid combinations are 0-11(decimal), if not among this range, output

frequency will be 0. The OFF of table stands for corresponding terminal with COM is disconnect, ON

stands for corresponding terminal with COM is connect.

E-03

Frequency reference given auxiliary channel selection

Range:0-10 Default: 0

Used for selecting frequency reference given auxiliary channel. The combination mode of auxiliary and main channel programmed by [E-05] parameters 0: Operator keypad digital given Auxiliary frequency given is set by up and down arrow key of keypad or parameters [E-16] configuring.

1: Potentiometer of keypad Auxiliary frequency given determined by potentiometer of keypad. 2: Terminal VS1 analog voltage 0-10V Auxiliary frequency given is determined and modified by control terminal

VS1 analog input. 3: Terminal AS analog current signal 4-20mA Auxiliary frequency given is determined and modified by (AS) analog current input. 4: Terminal VS2 analog voltage -10-10V Auxiliary frequency given is determined and modified by control terminal VS2 analog input.

5: Pulse train signal Auxiliary frequency given is determined and modified by control terminal (PUL) analog input. 6: RS485 communication port Auxiliary frequency given is determined by receiving signal of (A+) and (B-) of

RS485 communication port. 7: Up and Down control Auxiliary frequency given is determined by increasing UP and decreasing DOWN terminal connecting or disconnecting( ON/OFF) with COM terminal; each of multi- terminal (X1-X6) can be programmed by frequency UP terminal and DOWN terminal, refer to [F-01-F-06 ]in detail; Initial frequency of up and down terminal control can be configured, please refer to parameter [F-07] LED ten digit option and [F-70]. 8: General PID operation Selects it use to set up general PID close loop control system. When it has been applied, the [H-16] present setting value can be modified by up and down arrow button of keypad. 9: Constant pressure PID control It can be used to set up constant pressure PID control (constant pressure water supply system etc) close loop system, the [H-16] present setting value can be modified by up and down arrow

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

button of keypad.

10: Program running Main frequency given and rotation direction of inverter are configured by inverter’s inner

simple PLC process control. Up to 8 steps speed control is available, refer to [E-13, E-14, F-09-F-16, F-24-F-29,

H-32-H-52] Tips: Frequency main channel and frequency auxiliary channel can be set the same channel. In this case, the corresponding relationships between the frequency setting values and input signal are rather special, it need to consider the frequency main channel and auxiliary channel both characteristic at the same time. The combination of main and auxiliary frequency given still limited by upper frequency limit and lower frequency limit.

E-04

Frequency reference given channel gain

Range:0.01-5.00 Default:1.00

E-05

Frequency reference given channel combination mode

Range:0-10 Default: 0

Frequency reference given channel gain: Uses to amplify or lessen the frequency input channel signal. Proportional regulating of frequency given both main and auxiliary channel is available. Frequency given channel combination mode: Uses for selecting frequency given main channel and auxiliary channel combination. K stands for [E-04] setting value, MAX means takes the bigger among the both channel, MIN means takes the smaller among the both. 0:Main channel is valid, auxiliary channel is invalid. 1:Auxiliary channel valid, main channel invalid 2:Both channel non “0” value valid, main channel priority 3:Main channel + ( K × auxiliary channel）

4:Main channel -（K × auxiliary channel） 5:MAX [main channel , (K × auxiliary channel)] 6:MIN [main channel , (K × auxiliary channel)] 7:Auxiliary channel + (K × main channel) 8:Auxiliary channel - (K × main channel) 9:MAX [(K × main channel), auxiliary channel] 10: MIN [(K × main channel), auxiliary channel]

Tips: 1. Terminal (VS2) will be quite special in the multi-channel combination case.

A. When (VS2) terminal don not activate the bipolarity adjustment and direct control function both ([F-48] set to 0), the combination mode determined [E-05] combination mode setting. B. When (VS2) terminal activate the bipolarity adjustment and direction control function both ([F-48] set to 1 ), ( VS2 ) terminal frequency given with bipolarity and frequency given in another channel implement signed arithmetic based on the combination mode selected, the absolute value is for frequency given, the signed determine the direction rotation of motor after calculation. C. When (VS2) activate the bipolarity adjustment but no direction control. ([F-48] set to 2 ). ( VS2 ) terminal frequency given with bipolarity and frequency given in another channel implement signed arithmetic based on the combination mode selected, the absolute value is for frequency given, the rotation direction depend on the[E-01] Running control command selection.

2. Swing frequency running, jog function and multi-step is disabled combine with auxiliary channel.

E-06 Upper LED monitor selection Range:0-7 Default:0

E-07 Lower LED monitor selection Rang:0-7 Default:1

Uses to select the monitoring items displayed in two LED on the keyboard respectively. In the monitoring status, the upper LED monitoring item and the lower monitoring item can be modify directly via SET key and SHIFT key. 0: Frequency reference Given 1: Output frequency 2: Output current 3: Input voltage 4: Output voltage 5: Machine speed 6: PID given 7: PID feedback value When there is only one LED on the keyboard, it is disable to modify the lower LED monitoring via the [E-07] and SHIFT key.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

E-08 REV/JOG key of keypad function selection Range:0,1 Default: 0

Uses to select REV/JOG key of keypad function 0:Reverse This key is defined as reverse key（at this moment , keyboard functional indicator REV / JOG is not light）. When the running control command selection is programmed as Operator keypad control , press this key , frequency inverter will perform reverse running. 1: Jog This key is defined as jog running key（at this moment , keyboard functional indicator REV / JOG is light）. When the running control command selection is programmed as operator keypad control, press this key, frequency inverter will perform job running.

E-09 Maximum frequency Range:0.01-600.0Hz Default:50.00Hz

E-10 Upper limit frequency

Range: lower limit frequencymaximum frequency

Default:50.00Hz

E-11 Lower limit frequency Range: 0.00-Upper limit frequency Default:0.00Hz

E-12

Lower limit frequency running mode

Range:0,1 Default:1

Maximum frequency: Maximum frequency of [E-09] is the maximum allowable output frequency of inverter frequency, also is the reference point of acceleration and deceleration time setting.

Upper limit frequency: Output frequency upper limit value which is set base on the highest allowable speed of machine. When the frequency given is higher than upper limit value, the actual running frequency is upper limit frequency.

Lower limit frequency: Output frequency lower limit value of inverter. When the frequency given is lower than lower limit value, the actual speed depend on the [E-12] setting. Maximum frequency, upper limit frequency and lower limit frequency should be cautiously set base on the nameplate parameter of actual control motor and the need of the running conditions. Except of upper limit frequency and lower limit frequency, the output frequency while inverter running is limited by parameters setting of start-up frequency, free stop frequency, DC braking stop initial frequency, jump frequency and so on. The relationships between the maximum frequency, upper limit frequency and lower limit frequency is shown as the follow Fig.

Maximum frequency, upper limit frequency and lower limit frequency relationship. Fig.

Note: Lower limit frequency range is disabled for Jog function, only the upper limit frequency range is enable for Jog function.

If the lower limit frequency operation mode [E-12] set to 0, the frequency given lower than the lower limit frequency, the inverter would be run at 0.

If the lower limit frequency operation mode [E-12] set to 1, the frequency given lower than the lower limit frequency, the inverter would be run at lower limit frequency.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

E-13 Acceleration time 1 Range:0.1-6500.0s

Default:※

E-14 Deceleration time 1 Range:0.1-6500.0s

Default:※

Acceleration time 1: when[E-15]LED tens digit place to 1, it defined required time of out frequency accelerates from 0.00Hz to maximum frequency[E-09], when[E-15]tens bit place to 0, it defined required time of output frequency accelerates from 0.00Hz to motor rated frequency, refer to[E-15].

Deceleration time 1: when [E-15] tens digit place to 1, it defined required time of out frequency decelerates from maximum frequency [E-09] to 0.00Hz , when [E-15] tens bit place to 0, it defined required time of output frequency decelerates from motor rated frequency to 0.00Hz, refer to [E-15].

Note: 1. In the general circumstance ( no special specify ), the acceleration/ deceleration time 1 is default

setting. The acceleration time is only valid for normal acceleration running, not including the DC

braking starting time and DC braking starting frequency holding time. The deceleration time only

for normal deceleration running, not includes DC braking stop time.

2. If activate the equidistant function, inverter would be accelerate base on the accel. time 1, but

decelerates based on equidistant stop decel. time setting. Refer to [E-15].

3. If need apply other accel. & decel. time group, should be configure by control terminals setting,

in the program running case, the accel./decel. time 1 is defined for first accel./decel. time, other 3

groups of accel./decel time setting is available, refer to [F-24-F-29]

4. Jog acceleration and deceleration time are programmed by [E-26, E27]separately.

E-15 Accel/decel mode selection Range:0000-0111 Default:0000

LED unit digit: accelerate /decelerate mode.

AC70 series sensorless vector provide 2 kinds accelerate /decelerate mode, both kinds is enable during normal

start, stop, forward and reverse running, accelerate, decelerate process.

0: linear accelerate Suitable for general load.

1: S curve S curve type accelerate/decelerate curve are designed for reducing noise and vibration, reduce

starting and stopping shock or decreasing torque required during low speed, accelerate in short time required

during high speed.ect during accelerate and decelerate process if need.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

Accel.time1 Decel.time1

Time

Frequency

Motor

Decel time.1Accl.time1

Linear accel./decel. fig.

Rated freq.

Motor

Rated freq.

Frequency

S curve accel./decel. fig.

LED tens digit: Accelerate/decelerate time datum point. 0: Motor rated frequency Accelerate and decelerated time base on [H-53] motor rated frequency parameters

setting.

1: Maximum frequency Accelerate and decelerated time base on [H-09] maximum frequency setting. LED hundreds digit: Equidistant stop function

0: Disable 1: Enable Equidistant stop function: Takes the maximum frequency deceleration time as datum line, the inverter stop rotation running turns as same as the maximum frequency stop rotation turns after inverter performed stop command with any frequency. For example, the maximum frequency is 60Hz, deceleration time is 1s. If the maximum frequency decelerate stop rotation turns is 5, so the stop rotation turns also is 5 with 40Hz frequency given. The deceleration time of equidistant stop during difference frequency given change as following curve diagram show.

Note: 1. This function is disabled when the frequency given less than10% of maximum frequency, the inverter decelerate based on the deceleration time, it will not performed the equidistant function when the frequency given less than 10% of maximum frequency.

2. The overvoltage and over current suppression occurs when the deceleration time is too short, the actual of deceleration time will be longer, and the equidistant function can’t be performed. LED Thousands digit:

0: Disable 1: Enable

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

E-16

Frequency reference given by digital keypad

Rang: lower limit frequency-upper limit frequency

Default:50.00Hz

It uses to set or modify frequency reference when the frequency given channel is set to operator keypad digital given. Shortcut setting is available as well, changing the frequency reference via up/down arrow key of operator keypad when inverter running or in standby mode.

E-17 V/F curve mode Range:0-4 Default: 0

E-18 Torque boost Range:0.0%-25.0%

Default: ※

V/F curve mode: Uses to select V/F curve mode to meet various of load characteristic requirement. AC70 vector control inverter provides 4 kinds of fixed V/F curve and one kind of user defined V/F curve. Constant torque curve is optional for general load and descend torque curve is optional for square torque load such as water pumps and fans load.etc. 0: Constant torque curve 1: Descend torque curve(1.5 power curve) 2: Descend torque curve(1.7 Power curve) 3: Descend torque curve(2.0 Square curve) 4: User define curve :Inverter runs base on user defined V/F curve,[E-18] function is disable, User can program appropriate V/F curves according to the load characteristic, for details please refer to[H-01-H-10].

Torque boost: When [E-00] is set to 1(V/F control mode), it is used to enhanced torque output under low frequency running through output voltage boost compensation, when [E-00] is set to 0 ( OLV control without PG ), the torque boost improvement follows vector control mode,[E-18]setting parameters is disable. Torque boost value selecting should be according to load inertia. If the boost value is too big, will result in motor overexcited running, and motor over heat easily, even worst, inverter will occurs over current fault protection, or can’t start inverter properly.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

E-19 Filter time 0.01-99.99

Default:※

This function mainly used to torque boost in OLV control mode. The value setting is smaller, the response of torque boost is faster, the fluctuation of current is bigger, suitable for sudden changing load application; vice versa, the filter time setting is bigger, the response of torque boost is slower, the fluctuation of current is smaller, suitable for constant load application.

E-20 Carrier frequency Range:0.7KHz-15.0KHz

default:※

This function mainly used to improve the noise emitting and vibration possibility occurs during inverter operation. The waveform of current will be good when the carrier frequency is bigger, the noise of motor is smaller. It is very suitable for application that silent required, but in this case, but the switching loss of main component is bigger, the temperature rise, efficiency reduces, and output power is smaller. Meanwhile, the radio interference will be bigger, the leakage of capacitor also increases when run in high carrier frequency, that will result in malfunction of residual leakage protector which if have installed, over current will be possibility occurs as well. When frequency carrier is low, it is contrary to the phenomenon mentioned above. The response of difference motors to carrier frequency is different. The best carrier frequency should be adjust to

gain according actual application site. But the carrier frequency should be set smaller for bigger capacity motor. Veichi reserve the right to restrict biggest carrier frequency.

Carrier frequency Motor noise Electrical interference Switching loss

0.7KHz

big

↑

small

↓

big

small

↓

big

8.0KHz

15.0KHz

Below 4KW: When the carrier frequency is 6 KHz, rated current is the maximum output current.

5.5KW-22KW: When the carrier frequency is 3 KHz, rated current is the maximum output current. 30KW-75KW: When the carrier frequency is 2 KHz, rated current is the maximum output current. Above 93KW: When the carrier frequency is 1.5 KHz, rated current is the maximum output current.

Note: In order to obtain better control characteristics, the ratio of the carrier frequency to maximum frequency of the inverter should not less than 36. If inverter works long-term in low frequency, suggest to reduce the carrier frequency to reduce the impact of the dead zone time.

E-21 Carrier characteristic Range:0000-1211

Default: 1010

LED unit Digit: Associate of carrier frequency and output frequency configure.

0: Output frequency associate is disabled. 1: Output frequency associate is enabled.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

When the associate of carrier frequency of output frequency is enable, the inverter will adjust the carrier frequency automatically according the output frequency, this function can improve the torque performance in low speed, if combine with torque boost function will make performance better in low speed.

LED tens digit: Associate of carrier frequency and module temperature configure.

0: Module temperature associate is valid. 1: Module temperature associate is invalid. Inverter will reduce the carrier frequency when the temperature of inverter rise, this function can reduce the switching loss to prevent over heat fault occurs.

LED hundreds digit: PWM mode selection

0: Fixed PWM mode The noise frequency of motor is fixed. 1: Random PWM mode 1 This mode enables the harmonic spectrum of inverter output voltage evenly distributing in a wide frequency range to inhibit the electrical noise and vibration effectively, carrier frequency is 2.0KHz. 2: Random PWM mode 2 As the same as above mention, but carrier frequency is 2.5KHz.

LED thousands digit: Inhibition of shock.

0: Inhibition of shock is disabled. 1: Inhibition of shock is enabled.

E-22 V/F slip compensation Range:0%-200% Default: 100%

This function enables output frequency of inverter automatically regulate with the load of motor changing. This can compensate slip frequency of motor dynamically, it enables the motor maintaining a constant rotation speed to

reduce the load changing impacts on the motor speed effectively.

If cooperate with auto torque boost function, the torque performance in low frequency characteristic of inverter will be significantly improved. The value of slip frequency compensation should be set base on motor rated slip, should not set the value of compensation too large.

E-23 Energy saving mode selection Range: 0000-0011

Default: 1000

LED unit digit: Auto energy saving selection

0: disable 1: enable During running process, inverter can automatic calculate the best output voltage to load according to the load condition for energy saving. Energy saving function works by reducing output voltage, enhancing the power factor and improve motor efficiency.

LED tens digit: V/F slip compensation

0: Disable

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

1: Enable If only activate the slip compensation function in V/F control mode, this parameters used for selecting slip compensation function.

LED Hundreds digit: Reserve LED Thousands digit: Over modulation

0: Over modulation allowed 1: Over modulation not allowed

E-24 Voltage auto regulation function Range:0,1,2,3 Default:2

0: Disable 1: Enable in full process 2: Disable only in deceleration Output voltage auto regulation function that is AVR function. When AVR function disable, the output voltage change vary with input voltage. When the AVR enable, the output voltage will keep in setting value as long as the minimum of fluctuation input voltage bigger than output voltage setting (Motor rated voltage). When the power supply voltage less than rated output voltage, the output voltage will decrease follow with input voltage.

E-25 Jog frequency Range:0.50Hz-maximum frequency Default:5.00Hz

E-26 Jog acceleration time Range:0.1-6500.0s Default:2.0s

E-27 Jog deceleration time Range:0.1-6500.0s Default:2.0s

The jog frequency function has the highest control priority (terminal jog function). It means in any condition, when jog command is valid, the inverter immediately run from the current running frequency to the jog frequency based on jog accelerates/decelerates time. The jog accelerates/decelerates time is defined as same as accelerates/decelerates time, which can be configured by the keyboard, control terminal or job function control command of RS485.

Note: The setting value of the jog running frequency is only limited by the upper limit frequency. Only the priority of job terminal control free from limitation of running control command channel. Other jog command have priority only under the same running control command channel, such as the keypad job command is enabled only in the operator keypad control running.

E-28 Start frequency Range:0.00-60.00Hz Default:0.50Hz

E-29 Start frequency holding time Range time:0.0-20.0s Default:0.0s

Start frequency: The initial output frequency when inverter starting. The large starting torque is available if the starting frequency is properly set. It can gain high impact when starting instantaneous for some load that has a bigger static friction force in static status. But it will result in a trip if the value is set to big. Start frequency holding time: It means the inverter keeps running time under starting frequency.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

Note: The frequency output is 0 when the frequency given less than starting frequency during the

acceleration process.

E-30 Starting mode selection Range:0000-1102

Default:※000

LED unit digit: Starting mode selection. 0: Starts from starting frequency Inverter starts with [E-28] starting frequency given and [E-29]starting

frequency holding time given. Applicable for application which has big static friction torque, light load inertia, Or suit to work together with machinery that equipped external mechanical braking. That is occasion where the shaft of motor can maintain still before start, but after motor stop. 1: DC braking first, and then start from starting frequency Perform DC braking function first with DC braking voltage [E-35] and DC braking time [E-38] to feed motor a center DC braking energy (Electromagnetic braking), and then starts with starting frequency. Applicable for occasion there are forward or reverse running of small inertia load in stop status. 2: Restart after speed searching Inverter try to detect the speed of a rotating motor shaft that is driven by external forces first and start the motor operation directly from the detected speed to frequency given according acceleration /deceleration time.

Note: During forward/reverse switching process in normal operation, and perform accel/decel process after frequency given modifying, both start from 0.0Hz or stop to 0.0Hz. LED tens digit: Reserve LED hundreds digit: Speed search direction

0: Speed search performs only in running direction 1: Bi-speed search performs

LED thousands digit: Speed search mode

0: Software speed search 1: Hardware speed search

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

E-31 Power off restart selection Range:0,1 Default:0

E-32 Power off restart waiting time Range:0.0-10.0s Default:0.5s

Power off restart selection: 0: Disable Inverter runs must receive running command given after power off when Power on.

In operator keypad or RS485 communication control mode, the running command will be clear automatically when inverter off. In the external terminal control mode, the control command of FWD/REV terminal is valid, ignore any parameters setting of [E-31] when power on again after inverter power off. 1: Enable If inverter is running before power off, the inverter starts automatically after waiting time [E-32] setting when power on again.

Note: The restart power off function enable inverter operates automatically after power on again. There fore, there is huge contingency, please be cautious to apply this function ensure safety of person and equipment.

Power off restart waiting time: when the [E-31] setting is valid, inverter starts operation after waiting time [E-32]

when power on again. The principles of this time setting is base on the factors such as the work resume preparation time of equipments which correlate with the frequency inverter after power on again.

E-33 Free stop frequency Range:0.00-60.00Hz Default:0.00Hz

When inverter receives the stop command under deceleration stop mode, it will decelerate to free stop frequency base on the deceleration time, and then lock output, motor stop freely.

Note: This function is valid in stop mode only, disable in Forward/Reverse process.

E-34 Stop mode Range :0,1 Default:0

0: Deceleration stop Inverter stop output after decelerate to free stop frequency according to deceleration time and deceleration mode given. During the decelerate process, when the frequency given less than starting frequency of DC braking stop, the output frequency will jump to zero, and perform DC injection braking, after then stop working if the DC injection braking function is activated. During the deceleration process, when the DC bus voltage over the [E-53] dynamic braking threshold voltage value, the inverter will output pulse voltage base on dynamic braking ratio [E-54] setting for built in braking unit model ( through 15G/18.5P), able to connecting external braking resistor. For no built braking unit machine, can connect external braking unit. This stop mode mainly used to application which need quick braking required. 1: Free stop After receiving the stop command, frequency inverter will block the output and motor will run to

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

stop freely. Generally coordinate external mechanical braking to achieve quick stop when this stop mode has been selecting.

E-35 DC braking voltage Range:0%-150% Default:50%

E-36 DC braking time when stop Range:0.0-30.0s Range:0.0s

E-37

DC braking starting frequency when stop

Range:0.00-60.00Hz Range:0.00Hz

E-38

DC braking time when start

Range:0.0-10.0s Range:0.0s

DC braking voltage: The value of voltage which is injected to motor when executing DC braking function. The value of voltage benchmark against the input rated current of inverter. This function can output torque under zero speed. Generally, it uses to improve the stop accuracy and realize quick stop, but it can’t be apply for normal deceleration. The inverter will stop output once DC braking has been performed. If the DC raking current set to big, over current fault occurs easily during stop.

DC braking time when stop: DC braking current lasting time when inverter stops, if the braking time is set to 0, it means the DC braking function is disabled.

DC braking starting frequency when stop It means when inverter decelerated to this frequency, the inverter will stop output, and perform the DC braking function. If the output frequency less than DC braking starting frequency when stop during running process, the inverter will stop output, start DC braking function when receiving the stop command. The inverter will start DC braking, and the output frequency jump to zero if the frequency given less than DC braking staring frequency when stop during the deceleration process. The DC braking staring frequency when stop should be set smaller when there are no strictly requirement for stop. When the DC braking staring frequency when stop[E-37]parameters setting smaller than free stop frequency [E-33] setting, the inverter will decelerate to free stop frequency, and then stop output execute DC braking.

DC braking time when start: It refer to DC braking voltage lasting time when stop, Only if [E-30] parameters unit digit set to 1, the DC braking function will be enabled. When the braking time set to 0.0s, not perform DC braking function

E-39 Jump frequency 1 Range:0.00-600.0Hz Default:0.00Hz

E-40 Jump frequency 2 Range:0.00-600.0Hz Default:0.00Hz

E-41 Jump frequency 3 Range:0.00-600.0Hz Default:0.00Hz

E-42 Jump frequency range Range:0.00-5.00Hz Default:0.00Hz

The Jump frequencies are frequency ranges at which the drive will not operate. The drive can be programmed with three separate Jump frequencies to avoid operating at speeds that cause resonance in driven machinery. If the frequency reference falls within a Jump frequency dead band, the drive will clamp the frequency reference just below the dead band and only accelerate past it when the frequency reference rises above the upper end of the dead band. Jump frequency range: The frequency up and own jumping bias base on jump frequency

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

Setting value

Jumping range

The setting value after jumping

Jumping frequency 1

Jumping frequency 2

Jumping frequency 3

Jumping frequency and jumping range relationship

Note: 1. The output frequency still will pass the jumping range during acceleration or deceleration. Make

sure the parameters don't overlap or inset setting.

2. Jumping frequency is disabled for jog, multi-step speed and swing frequency.

E-43

Number of auto restart attempts

Range:0-3 Default:0

E-44 Fault auto reset waiting time Range:0.1-20.0s Default:1.0s

Number of automatic fault reset: 0: Disable, The auto reset function is disabled, reset only by manual. 1—3: Enable, 1-3 parameters used for defining the numbers of auto reset. (The maximum time of auto reset is enabled) The inverter may be trip to stop cause by fluctuation of grid and other accidents reason during operation. Auto reset for overload, over current, system abnormal, overvoltage, under voltage. etc fault occurs is allowable to restart inverter operation ensure system working continuously. Inverter will restart with speed search restart mode during auto reset. If the auto reset fails to restart during the setting give numbers, the fault protection will be activate, inverter stop output. The maximum of auto reset number setting is 3, the reset numbers will be recount after inverter running normally for 10 minutes, the record times clears automatically. Suggest configure number of auto reset to 1 times

will be better.

The fault output terminal can be set disable or enable during fault auto reset process. Refer to [F-30,F-31,F-32] Fault auto reset waiting time: Uses for defining the waiting time from fault occurs to reset attempts.

Note: 1. This function only enable for overload, over current, system abnormal, over voltage, under voltage during running, disable for other fault happen.

2. Reset can’t make if fault fail to solve, no reset for the temperature of inverter over 70℃ Tips: Users must be cautious to consider the start characteristic of the mechanical devices in crane, lifting application. It should be cautious in using this function for application which can’t start with load or the alarm will come out immediately when inverter stop output.

E-45 Machine warm up time Range:0.0-6500s Default:0.0s

Inverter enables command operation after machine warm up time, once power supply switch to inverter. It displays count down in seconds after switch on.

E-46 Running direction selection Range:0-2 Default:0

0: Consistent with the default direction Actual rotation direction is the same with the requirement. The actual direction don’t change.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

1: Opposite to the default direction Actual rotation direction is opposite to the requirement. The actual direction will be change. 2: Reverse running forbidden When this parameter is set as prohibition, all the reverse command from Running control command selection (operator keypad, external terminal, RS485 communication, bipolar VS2 and program running) are invalid. The setting will not be modified after the factory default setting.

Note: 1. When the reverse running forbidden is selected, when the bipolar control receiving the reverse frequency command, the inverter will be operation with 0 speed, the case is the same, inverter will be operate with 0 speed during program running control if there are some certain step speed reverse direction are set.

2. All reverse command will be auto turn to running command, running with forward direction.

E-47 FOR/REV dead zone time Range:0.0-10.0s Default:0.0s

The function defined the transient waiting time from forward to reverse or from reverse to forward during 0Hz. FOR/REV dead zone time special designed for big inertia load application which has mechanical dead zone required.

E-48 Cooling fans running selection Range:0,1,2 Default:※

Uses select cooling fan running mode. 0: Fan runs when inverter switch on. Cooling fan stop when under voltage condition, it runs when power supply is stable. 1: Relates with temperature during inverter stop mode, fan runs when inverter running Fan stop or not is relate to temperature of module during stop mode, fan would operate when the temperature is above 45℃, stop when module temperature lower 40℃. Fan runs immediately when inverter receives a run command.

2. Fan stop during inverter stop mode, relates with temperature during inverter running. Fan stop or not is related to temperature of module during inverter running mode, fan runs when the temperature of module is above 45℃, stops when temperature of module is lower than 40℃. Fan stops always during inverter stop mode.

Note: Use this function correctly enable extend fans working life.

E-49

Inverter protecting mode selection

Range:0000-1111

Default:0※11

LED unit digit: Overvoltage protecting selection during deceleration

0: Disable 1 Enable

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

During the inverter deceleration, the energy generated by motor feedback to inverter inside due to load inertia effect, which will cause the voltage of inverter over the maximum voltage threshold. The over voltage protecting occurs if without any measure. When overvoltage protection is activated, the inverter deceleration stops (output frequency stop descend) when detecting the DC bus voltage over[E-53]setting, deceleration only allow to continue until the DC bus voltage is lower than the protective value.

Note: It will cause the stop time from deceleration given to stop to be longer if the stall protection is active.

LED ten digit: Output phase missing protection

0: Disable 1: Enable Used for detecting if output wiring missing when inverter power on, if there are any output phase missing, the Err2 occurs, fault output terminal will be activated.

LED hundred digit: Input phase missing protection

0: Disable 1: Enable Inverter performs phase missing detecting for 3 phase AC input, if any phase missing, Err1 will occurs, and stop output. Motor will carry out free stop, the fault output terminals will be activate.

LED thousand digit: Inverter overload, over heat protect mode selection.

0: Free stop 1: running with current limit This parameter will determine the protection mode when overload, over heat occurs. Free stop means that output of inverter stop immediately, and active ‘OL2’and ‘OH’ fault alarm. The running with current limit is that inverter running is based on output current limit. If the current over the current limit value, the output frequency will be decreased to reduce the load current. The output terminal [F-30-F-32]can be used to output pre-alarm signal when overload happens.

Current limit value during overvoltage and overheat=rated current ×100%

E-50

Coefficient value of electronic thermal

Range:30%-120% Default:0%

Motor will generate heat seriously in a long time overload running. This parameter is used to set coefficient of thermal relay of motor in inverter. When the rated current of motor is equal to rated current of inverter, the value can be set 100%, when the rated current of motor can’t match the rated current of inverter, this parameter value can be set for motor overheat protection properly. The factory default setting of overload capacity of inverter as follows: G type: 150%× rated current for 1 minute. F type: 120%× rated current for 1 minute.

The parameters setting value can follow below formula: Coefficient value of electronic thermal=rated current/ rated output current of inverter Note: This function would fail when one inverter drives multiple motors in parallel. Please install the thermal relay before motor input to protect motor effectively

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

E-51

Stall protecting current limit value

Range:100%-250% Default:160G/120P

It is used to define the ratio of stall protection current limit to rated current motor. G type default setting: 160% P type default setting: 120% Stalling protecting current limit function means that inverter will limit load current automatically with in time monitoring during the acceleration, make it lower than the limit setting, (Stops acceleration or lower the output frequency to achieve the value of output current controlling), to protect big current occurs result in fault alarm trip. This function is suitable for application where has big inertia or load fluctuates severe particularly.

This parameters datum line is rated current of inverter. It will extend acceleration time longer. It means the current limit function is activated if the frequency can’t accelerate to set value or frequency given, but fluctuates in the fixed frequency range. Please reduce the load or adjust the some relevant parameters.

E-52

Stall protecting DC bus voltage threshold

Range:105%-160% Default:138%

This parameter is defined as the ratio of the stall protection DC bus voltage threshold to rated DC bus voltage of frequency inverter.

Rated inverter DC bus voltage value=Rated input voltage of inverter×1.414

It defines the over overvoltage stall protecting threshold during the deceleration time. While the DC side pumping voltage cause by decelerating exceeds this parameter settings, the inverter will auto-prolong the deceleration time.

E-53

Dynamic braking and decelerating over voltage suppression threshold voltage

Range: 105%-160% Default: 130%

E-54 Ratio of dynamic braking Range: 0%-100% Default: 100%

Decelerating overvoltage suppression threshold voltage: This value is enabled while [E-49] set to 1

Dynamic braking over voltage threshold voltage: The dynamic braking will be activate when the DC bus voltage rise over than rated voltage of inverter [E-53] setting. The voltage of dynamic braking stop is lower 20V than [E-53] setting, please make this setting cautiously.

This function is valid for inverter which built in braking accessory only, AC70 series 22G/30 and 30G/37 both inverters have braking accessory option, standard built in braking accessory through 15G/18P inverter. Please

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

select braking unit or braking accessory if need for other model.

Ratio of dynamic braking: This parameter defines the average of voltage which applied on the braking resistor when braking unit effecting. The voltage applied on the braking resistor is PWM wave, the duty cycle is equal to ratio of dynamic braking. The ratio bigger, energy release faster, the braking effects better, and the same time the more energy consumes on the braking resistor. Selecting the braking resistor value, power and braking effects should take comprehensive consideration to set this parameter.

E-55

DC bus under voltage protecting value

Range:60%-90% Default: 65%

This parameter defines the DC bus side lower limiter voltage while inverter in normal working condition. It allow to set under voltage protecting levels lower to ensure inverter normal working for power grid lower situation.

Note: The output torque will be reduced when the power grid voltage is low. For the constant power load and constant torque load application, the too low power grid voltage will increase input and output current, which will reduce the inverter ruing reliability.

E-56-E-58 Reserve

E-59

Rotation speed display scale factor

Range:0.1-2000.0 % Default:100.0%

It uses to set the display factor of keypad monitor, 100.0% correspond with motor rated speed. The upper limit machine speed is 65000 RPM.

E-60

Ratio of inverter output voltage

Range:50%-110% Default:100%

Ratio of output voltage to rated voltage of inverter. This function uses to coordinate the output voltage to meet various types of V/F characteristic requirement. Output voltage of inverter = rated voltage of inverter ×Ratio of inverter output voltage

E-61 G/P type setting Range:0 ,1 Default:0

When reset the factory setting, this parameter setting values will not be changed. 0:G model, it is suitable for constant torque load. 1:P model, it is suitable for variable torque（such as fan, water pump load）. The AC70 series frequency inverter adopts G/P in one mode. The power of the motor adaptability used in the constant torque load (G model) is lower one grade than that used in fan, water pump load (P model）

E-62

Speed search stability keeping time

Range:0.20-10.00s Default:0.600s

This parameter defines the time of inverter try to run stably when inverter detected the frequency point during speed search process. Inverter accelerates to frequency set point with acceleration time given. For the big inertia load, extend the speed search stability keeping time can reduce the instantaneous impact current of speed search start.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

E-63

Parameters change protection

Range:0-2 default: 0

0:All the parameters changing allowed Except for the parameters only for inquiry, any other parameters can be changed （Note: Some parameters only can be changed in the stop state, some parameters can not be changed in any condition）. 1: Only keyboard digital given parameter changing allowed Except for the keyboard digital given frequency and keyboard number PID given quantitative parameter, any other parameter don’t allow changing. 2: All the parameters prohibit changing All the parameters of frequency inverter unchangeable; When users need to change the parameter, They have to change this parameter as 0 or 1.

E-64 Parameter initialization Range:0-4 Default: 0

0: Null 1: Restores to factory default setting value Function parameters will restore to factory default setting after performed parameters initialization.

2. Clear fault record All historical fault record will be cleared.

3. Transfer parameters of inverter to keypad and save. Copy parameters saved of inverter to keypad and preserve.

4. Transfer parameters saved of keypad to inverter Download parameters of keypad to inverter.

Note:

1. During the inverter running state, Parameters saved of keypad can’t transfer to inverter when in fault

state or no parameters save in keypad.

2. If keypad is pulled out during transferring parameters of inverter to keypad and saving process, this

function will be fail. It need redo parameters copy.

3. If the first part of parameters has been modified, the latter part hasn’t been changed when keypad is

pulled out during transferring parameters copy of keypad to inverter. This function need redo again.

4. The current running state of inverter will not be stored in parameters of inverter transfer to keypad

operation. All keypad are null and invalid when transferring the parameters saved of keypad to

inverter.

5. When E.CPE (parameters copy abnormal) appears on the keypad in parameters copy operation, the

copy is stopped at this moment. It need redo copy again with pressing PRG button return to monitor

state.

6. The parameter saved of keypad can’t be transfer to inverter if the version is incompatible with E.EDI

display.

Note: The current setting value of [E-46, E-61]will not be affected when performing the factory default

restoring. The setting value 3 or 4 of [E-64] parameters will be set to 0 automatically after parameters copy.

E-65 Factory password Range:0-9999 Default: 0

Manufacturer inquiry parameters.

E-66

Information check

LED unit digit: 0: Null operation 1: State monitoring inquiry 2: Fault information inquiry LED ten digit: LCD display language 0:Chinese 1:English

Default: 0

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

LED unit digit: 0: Null operation 1: State monitoring inquiry 2: Fault information inquiry

0: Null operation 1: State monitoring inquiry Selects this function to enter monitoring menu（group C parameters）,and inquire each state parameters of the frequency inverter. In the monitoring state, with long pressing (1 second) PRG key and enter directly the state of the group C parameters that is status of state monitoring inquiry.

Monitoring

code

Content Unit

Communication

cod

C-01 Frequency reference given 0.01Hz C01H

C-02 Output frequency 0.01Hz C02H

C-03 Output current 0.1A C03H

C-04 Input voltage V C04H

C-05 Output voltage V C05H

C-06 Machine speed RPM C06H

C-07 PID given value % C07H

C-08 PID feedback value % C08H C-09 Module temperature ℃ C09H

C-10

Accumulative running time ( the total timing of

output frequency which large than 0Hz, 0Hz

running and stop status timing is disabled )

Hour C0AH

C-11 Accumulative running timing after last power on Minute C0BH

C-12 Output current percentage % C0CH

C-13 Multi-Step operation remainder time percentage % C0DH

C-14 Input terminals OFF/ON status Refer to below table

C0EH

C-15 Output terminals OFF/ON status Refer to below table

C0FH

C-16 Terminal VS1 input value 0.1V C10H

C-17 Terminal AS input value 0.1mA C11H

C-18 Terminal VS2 input value 0.1V C12H C-19 Terminal pulse input value ※ C13H C-20 Counter record ※ C14H

C-21 DC bus voltage V C15H C-22 Analog output A01 ※ C16H

C-23

Frequency/voltage/current outputA02

※ C17H

C-24 Reserve -- C18H

C-25 Inverter rated power kW C19H

C-26 Inverter rated voltage V C1AH

C-27 Inverter rated current 0.1A C1BH C-28 Software version ※ C1CH

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

Input terminal OFF/ON state schematic diagram

Output terminal OFF/ON status schematic diagram

2: Fault information inquiry After inquiry setting, digital LED display below table information. Recycling shows is available via press up and down keys.

Serial

number

Definition Remark

Commu nication

code

Er.01 The latest fault information

Refer to fault information code to get more in detail

E01H

Er.02

The cumulative running time before the latest fault

Units: hour E02H

Er.03 Output frequency while the latest fault Units: Hz E03H

Er.04 DC bus voltage while the latest fault Units: V E04H

Er.05 Output current while the latest fault Units: A E05H

Er.06 Output voltage while the latest fault Units: V E06H

Er.07 Module temperature while the latest fault Units:℃ E07H

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

Er.08 Running direction while the latest fault 0.Forward 1.reverse E08H

Er.09 Running status while the latest fault

0. Stop 1. Constant running

2. Acceleration 3. Deceleration

E09H

Er.10

Protection status while the latest fault

0. Normal 1. Only voltage amplitude limit

2. Only current amplitude limit 3. Both voltage and current amplitude limit

E0AH

Er.11

Input terminal status while the latest fault

See above table E0BH

Er.12

Output terminal status while the latest fault

See above table E0CH

Er.13 The latest first fault information E0DH

Er.14 The latest second fault information E0EH

Er.15 The latest third fault Information E0FH

Fault information code table:

Serial

number

Keyboard display content Fault information

0 ---- No fault

1 L.U.1

The power supply is too low in stop (Don’t record this fault in fault logging)

2 L.U.2

The power supply is too low in running (Don’t record this fault in fault logging)

3 o.U.1 Overvoltage in acceleration

4 o.U.2 Overvoltage in deceleration

5 o.U.3 Overvoltage in constant speed

6 o.U.4 Over voltage in stop

7 o.C.1 Over current in acceleration

8 o.C.2 Over current in deceleration

9 o.C.3 Over current Constant speed

10 o.L.1 Motor overload

11 o.L.2 Inverter overload

12 Sc System fault

13 o.H. Inverter interior overheat

14 Sen Feedback sensor fault (Don’t record this fault in fault logging)

15 Err1 Phase missing in input side

16 Err2 Phase missing in output side

17 Err3 Current detected fault (Don’t record this fault in fault logging)

18 Err4 Inverter external fault

19 Err5 Swing frequency running parameter setting error

20 Err6

Keypad communication fault (Don’t record this fault in fault logging)

21 LIFE

Reserved (Seek to the technical support, don’t record this fault in fault logging)

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

22 93SE Storage fault (Don’t record this fault in fault logging)

23 E.TE1 Stationary auto tuning fault (Don’t record this fault in fault logging)

24 E.TE2 Rational auto turning fault (Don’t record this fault in fault logging)

25 Reserve

26 E.CE RS485 communication fault

27 E.PAn

Communication fault of keypad during power on (Don’t record this fault in fault logging)

28 E.CPE Parameters copy fault (Don’t record this fault in fault logging)

LED ten digit: LCD display language 0:Chinese 1:English

E-67

Interference suppression selection

Range:0000-1221 Default:0001

LED unit digit: Overvoltage interference suppression 0: Disable 1: Enable When this function is activated, the inverter will take intellectualized judge for over voltage fault, only respond for true fault signal, suppresses the interference. It may causes alarm delay, should be used with caution

LED ten digit: SC interference suppression

0: Disable 1: SC interference suppression 1 When this function is activated, the inverter will take intellectualized judge for SC fault, only respond for true fault signal, suppresses the interference. It may causes alarm delay, should be used with caution. 2: SC interference suppression 2 It has strong SC interference suppression ability compare to SC interference suppression 1. It may causes alarm delay, should be used with caution.

LED hundred digit: over current interference suppression

0: Disable 1: Over current interference suppression 1 When this function is activated, the inverter will take intellectualized judge for over current fault, only respond for true fault signal, suppresses the interference. It may causes alarm delay, should be used with caution. 2: Over current interference suppression 2 It has strong over current interference suppression ability compare to over current interference suppression 1 It may causes alarm delay, should be used with caution.

LED thousand digit: over current in deceleration suppression

0: Disable

1: Enable When this function is activated, the current limit function will be executed if over current occurs during the

deceleration.

2: Enable frequency reduce for protecting over current. Selects this value for 2, if the output current achieve to

[E-52] current threshold given setting, the inverter will decelerate according to the [F-23] deceleration time given

setting, when after the output current lower to [E-52] current threshold, inverter will accelerate to frequency

reference given according to [F-22] acceleration time given setting.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

8.2 External Terminal Parameters

F-01

Input signal selection 1(X1) Range:0-28 Default:27

F-02

Input signal selection2(X2) Range:0-28 Default:28

F-03

Input signal selection 3(X3) Range:0-28 Default:1

F-04

Input signal selection 4(X4) Range:0-28 Default:2

F-05

Input signal selection 5 (X5) Range:0-28 Default:3

F-06

Input signal selection 6(X6) Range:0-28 Default:4

Defines the control digital terminal function, it is enabled when short connecting ON with COM terminal.

Setting

value

Definition Function description

0 Invalid(check optional is available) This port is free

1 Forward jog operation

Jog command input port. Terminal jog commands

have the highest priority.

2 Reverse jog operation

3 Free stop Free stop command input port

4 Fault reset

External reset command input port when fault

5 Multi steps speed control 1

The multi steps speed commands input port, up to

8 steps speed control is available; The multi steps

speed commands has priority only next to the jog

command;

6 Multi steps speed control 2

7 Multi steps speed control 3

8 Multi steps speed control 4

9 UP/Down running frequency increasing UP

Realize the ascend, descend control function,

enable when [E-02]or[E-03]is set as“7”；

UP /Down running frequency decreasing

11 Three wire operation control D (X)

Defines as D(X) in three line operation control,

refer to parameters [F-08].

12 PID control cancel

PID control is canceled when PID control

operating, take PID given signal as frequency

reference given, inverter runs at this speed

13 External fault alarm Input port of external fault signal

Acceleration/deceleration time selection

terminal 1

Refer to the below fig.

Acceleration/deceleration time selection

terminal 2

Frequency main channel

selection terminal 1

When [E-02]is selected for“12”,Frequency given

main channel control by terminal ; Four digital

terminals will be combined to 0-11 controlling

channels, separately corresponding to the[E-02]

Frequency main channel

selection terminal 2

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

Frequency main channel

selection terminal 3

0-11 frequency input channels

Frequency main channel

selection terminal 4

20 Program running pause

During the program running, this signal enable

program running to pause. Output frequency will be

0 if this command is activated, continue to run base

on running status before pause if pause signal

disappears.

21 Program restart

During the program running, if this signal is valid, it

enables the program running to restart, starts to

run from first stage;

22 Timer trigger terminal Start timer to start timing, refer to in detail [F-38].

23 Timer reset terminal Clear the records of the timer

24 Counter reset terminal Clear the records of the counter

25 Counter clock input terminal Refer to [F-39, F-40]

Only terminal control channel is enabled

selection

Only terminal control channel is enabled, keypad

and Rs485 command channel is invalid.

27 Forward running Refer to forward running description in detail.

28 Reverse running Refer to forward running description in detail.

Acceleration/deceleration time selection reference list.

Terminal 2 Terminal 1 Acceleration/deceleration time selection

OFF OFF Acceleration time 1 and deceleration time 1

OFF ON Acceleration time 1 and deceleration time 2

ON OFF Acceleration time 1 and deceleration time 3

ON ON Acceleration time 1 and deceleration time 4

Short connect with（COM）is “ON”, disconnection is “OFF” Forward running description: As the running command given by terminal, and if [F-08] set as standard operation control, when this terminal is valid, inverter runs in forward direction, refer to [F-08] parameters for other control mode function. Reverse running description: As the running command given by terminal, and if [F-08] set as standard operation control, when this terminal is valid, inverter runs in reverse direction, refer to [F-08] parameters for other control mode function.

F-07

Input signal respond mode selection

Range:0000-1121 Default:0001

LED unit digit: Free stop terminal recover mode

0: Recover to original command with speed search function 1: Don’t recover to original command 2: Recover to original command without speed search function, No speed search of this function need to set unit digit of [E-30] for 2 together.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

LED ten digit: UP and DW terminal control starting frequency setting

0: Runs with UP/DW terminal adjusting without save the frequency record after power loss. 1: UP/DW terminal adjusting, save the frequency record after power off stop. Inverter will run to last stop moment frequency and then perform UP/DW adjusting. (Refer to [F-70] to Check or modify last stop moment frequency).

2. Runs to preset frequency [F-70] first, and then execute UP/DW adjusting.

LED hundred digit: STOP/RESE of keypad effective range selection.

0: STOP/RESE key valid only when under keypad control 1: STOP/RESE key valid under any run command source. This function is suitable for using emergency stop in NOT keypad control mode.

Note: If selects to STOP/RESE key valid under any run command source, pressing the stop key of keypad, inverter will be located in stop lock status when in terminal control or RS485 control mode. If want to using terminal or Rs485 running control channel command to restart inverter running, you must sent stop command by given channel to unlock stop status first. Frequency inverter enable to restart after stop status unlocking. LED thousand digit: Terminal running mode selection after fault reset

0: Start inverter running directly after power on in terminal control mode 1: Stop first and then start in terminal control mode

Note: When fault occurs of inverter, reset valid signal can be sent by the all 3 running control command. If the frequency inverter adopts the terminal control mode, after frequency inverter reset by receiving terminal or the other two channels’ reset signal, this parameter can be used to select whether to carry on the terminal running command.

F-08 Terminal running control mode Range:0000-0005 Default: 0000

LED unit digit: Terminal control mode selection 0: Standard running control mode Running and direction are bonded together. This 2 wire control mode is

most commonly using. Uses X1 (forward running) and X2 (reverse running) terminals command to determine the Forward /Reverse running of motor. Refer to below fig.

1: Two wire running control mode Running and direction are separated. Uses the forward running terminal X1 (forward running) to determine running control, reverse running terminal X2 (reverse running) to determine direction control. Refer to below fig.

2. Three wire control mode 1 Three wire control terminal (Xi) is used for stop running terminal. Running command determined by forward running terminal X1 (forward running), direction determined by reverse running terminal X2 ( reverse running). 3 wire running control terminal Xi is used for enable input.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

Tip: In 3 wire control mode 1 Fig, SB1 is a normal close stop button, SB2 is a normal open button. K1 is a direction selection switch; Xi is multi-function terminal (X1-X6) which have been programmed for 3 wire running control terminal. 3: 3 wire control mode 2 In this mode, 3 wire running control terminal (Xi) is used for stop running terminal, the

running command is generated by forward running terminal X1(forward running) or reverse running terminal X2( reverse running ), also control the direction at the same time.

Tip: In 3 wire control mode 2 Fig, SB1 is a normal close button, SB2 and SB3 both are normal open button and pulse edge is valid, uses for inverter direction control. 4: 3 wire control mode 3 3wire running control terminal (X1) is used for running command given terminal,

running in connecting ON, stop in disconnecting OFF. Rotation direction is determined by forward running terminal X1 ( forward running) or reverse running terminal X2( reverse running). Every staring running with last time direction memorized

Tip: 1. SB2 and SB3 both are normal open button, and enable by pulse edge.

2. If need start motor in forward direction, press the K1 first, and press SB2 immediately.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

3. If need start motor in reverse direction, press the K1 first, and press SB3 immediately.

5: 3 wire control mode 4 3 wire running control terminal (X1) uses for stop command terminal, running

command is determined by forward running terminal X1 (forward running), direction is controlled by reverse running terminal X2( reverse running), and direction will be change after every Xi is activated. Every starts running based on last direction memorized. 3 wire running control terminal X1 for effective input.

Tip: SB1 is a normal stop button, SB2 is a normal open button. K1 used for running direction selection button. Xi is multi-function terminal (X1-X6) which have been programmed for 3 wire running control terminal. LED ten digit: Reserve LED hundred digit: Reserve LED thousand: Reserve

F-09 1 step speed setting 1X Rang:0.00Hz-upper limit frequency Default: 30.00Hz

F-10 2 step speed setting 2X Rang:0.00Hz-upper limit frequency Default:25.00Hz

F-11 3 step speed setting 3X Rang:0.00Hz-upper limit frequency Default: 40.00Hz

F-12 4 step speed setting 4X Rang:0.00Hz-upper limit frequency Default: 50.00Hz

F-13 5 step speed setting 5X Rang:0.00Hz-upper limit frequency Default: 50.00Hz

F-14 6 step speed setting 6X Rang:0.00Hz-upper limit frequency Default: 40.00Hz

F-15 7 step speed setting 7X Rang:0.00Hz-upper limit frequency Default: 25.00Hz

F-16 8 step speed setting 8X Rang:0.00Hz-upper limit frequency Default: 10.00Hz

Uses for setting program running and multi-step speed running frequency separately. Multi-step speed control has the priority only next to the jog function. If users choose the multi-step speed running mode, they need to set four multi-function input terminals as multi-step control terminal. ON/OFF between the four terminals and (COM) determine the running speed steps. Its running and direction is controlled by the running signal and direction given by the running control command channel [E-01]. And its acceleration, deceleration time is controlled by the acceleration, deceleration time 1 in default. Or specifies the particular acceleration, deceleration time by [F-01]-[F-06] parameters setting. Swing frequency control need to configure the [F-09] and [F-10], refer to [H-51]parameters for the requirement setting of [F-09] and [F-10]. Inverter will appear fault alarm “Err5” if wrong setting. Tip 1. Multiple step speed running don’t limited by lower limit frequency, but subject to upper limit frequency.

2. Output of program running is subject to limit by upper and lower limit frequency. Inverter will run with lower limit frequency when the frequency given less than lower limit frequency.

AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION

Short connecting with COM stands for ON, disconnecting for OFF

Multi-step control

terminal 4

Multi-step control

terminal 3

Multi-step control

terminal 2

Multi-step control

terminal 1

Terminal

Step

Speed

OFF OFF OFF ON 1X

OFF OFF ON OFF 2X

OFF OFF ON ON 3X

OFF ON OFF OFF 4X

OFF ON OFF ON 5X

OFF ON ON OFF 6X

OFF ON ON ON 7X

ON OFF OFF OFF 8X

F-17-F-18 Reverse

F-19 Speed search tracking speed Range:0.1-10.0% Default: 0.2%

F-20 Voltage stores time Range:0.10-10.00s Default: 0.60s

F-21

Speed search respond current threshold value

Range:10-200% Default: 120%

This group parameters will be use in software speed search mode. Software speed search will detect out the motor speed from current, and stores voltage based on [F-20] voltage stores time under upper limit frequency or given frequency. When the output current bigger than [F-21], inverter will lower the output frequency with [F-19] speed search speed tracking. When the current lower than [F-21] and maintain [E-62] time setting, it judges the output frequency and motor speed is synchronous, will accelerate or decelerate to frequency reference given. Software speed search processing schematic as following tale:

Note: The motor may decelerate suddenly when drive a light load.

F-22 Frequency reducing acceleration time Range:0.1-6500.0s Default: 2.0s

F-23 Frequency reducing deceleration time Range:0.1-6500.0s Default: 0.3s

Frequency reducing accel/decel. time: When parameters[E-67] is set to “2****”, inverter will reduce frequency

Veichi AC70-T3-R75G/1R5P, AC70-T3-7R5G/011P, AC70-T3-018G/022P, AC70-T3-015G/018P, AC70-T3-022G/030P User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual