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Veichi AC70 series Manual

Vc control frequency inverter
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Summary of Contents for Veichi AC70 series

  • Page 2: Table Of Contents

    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 ............................

  • Page 3: Chapter1 Overview

    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...).
  • Page 4 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.
  • Page 5 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.

  • Page 6: Technical Specification

    AC70 VC CONTROL FREQUENCY INVERTER MANUAL OVERVIEW 1.2 Technical Specification Tech. Items Description Specification Voltage, frequency single phase 220V, 3 phase, 220V,380V, 660V and 1140V Voltage:＜±15%; frequency±5% Allowable fluctuations Distortion of voltage to confirm to IEC61800-2 Power Input Closing striking current less than rated current Power Factor ≥0.94( integrated DC reactor)
  • Page 7 AC70 VC CONTROL FREQUENCY INVERTER MANUAL OVERVIEW 5 kinds curve programmable setting:1 user setting, 1 of linear V/F curve characteristic torque curve setting. 3 kinds derating torque setting( 1.5 power, 1.7 power, 2.0 Power curve ) Two kinds curve: line Accel/Decel, S curve Accel/Decel. Accel / Decel.
  • Page 8 AC70 VC CONTROL FREQUENCY INVERTER MANUAL OVERVIEW One line digit-segments LED display to monitor 1 running status LED Display Double line digit-segment display to monitor 1 running status Parameters copy upload and download parameter code to achieve easy copy Output frequency, Frequency set point, Out current, Output voltage, keypad Monitor Function motor speed, PID feedback value, PID given setting, IGBT module...

  • Page 9: Chapter 2 Before Use

    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.

  • Page 10: Rated Output Current

    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) 0.75 18.5 1100...

  • Page 11: Chapter 3 Installation And Wiring

    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 ●...

  • Page 12: Inverter Stable Running Environment

    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 ●...

  • Page 13: Emi Protection

    Derate according to the chart while over temperature limit. ● PERMIT OUTPUT CURRENT(%) TEMPERATURE( ℃ ) Chart 3-2:AC70 series inverter derating surve while over permit temperature Derate according to the chart while over altitude limit. ● PERMIT OUTPUT CURRENT(%) ALTITUDE(M ）...
  • Page 14 ● 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.

  • Page 15: Machinery Installation

    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...
  • Page 16 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...
  • Page 17 AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING Dimension of Inverter and Keyboard Inverter size Install size Install Inverter model aperture AC70-S2-R40G AC70-S2-R75G 154.5 ф5 AC70-S2-1R5G AC70-S2-2R2G 157.5 147.2 ф5.5 AC70-S2-004G AC70-S2-5R5G 167.5 ф7 AC70-T3-R75G/1R5P AC70-T3-1R5G/2R2P 154.5 ф5 AC70-T3-2R2G/004P AC70-T3-004G/5R5P 157.5 147.2...
  • Page 18 AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING Install aperture Inverter size Install size Install Inverter model aperture AC70-T3-015G/018P （steel cover machine） 331.5 ф7 AC70-T3-018G/022P （steel cover machine） AC70-T3-022G/030P （steel cover machine） Ф7 AC70-T3-030G/037P AC70-T3-037G/045P AC70-T3-045G/055P Ф9 AC70-T3-055G/075P AC70-T3-075G/093P AC70-T3-093G/110P ф11 AC70-T3-110G/132P...
  • Page 19 AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING Inverter size Install size Install Inverter model aperture AC70-T3-132G/160P ф11 AC70-T3-160G/185P AC70-T3-185G/200P 1060 1023 ф16 AC70-T3-200G/220P AC70-T3-220G/250P AC70-T3-250G/280P 1170 1050 1128 ф18 AC70-T3-280G/315P AC70-T3-315G/355P AC70-T3-355G/400P 1280 1150 1236 ф20 AC70-T3-400G/450P NOTE: Without build-in dc reactor...
  • Page 20 AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING Inverter size Install size Install Inverter model aperture AC70-T3-160GD/185PD AC70-T3-185GD/200PD 1600 1500 ф14 AC70-T3-200GD/220PD AC70-T3-220GD/250PD AC70-T3-250GD/280PD 1700 1600 ф14 AC70-T3-280GD/315PD AC70-T3-315GD/355PD AC70-T3-355GD/400PD 1800 1700 ф14 AC70-T3-400GD/450PD NOTE: With build-in dc reactor...
  • Page 21 AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING Inverter size Install size Install Inverter model aperture AC70-T3-450G/500P AC70-T3-500G/560P 1200 1850 1750 ф14 AC70-T3-560G/630P Table 3-3:AC70 series inverter dimension...
  • Page 22 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 63.5 16.5 35.6 65.5 19.5 Chart 3-13:AC70 series inverter 2 line LED keyboard dimension...
  • Page 23 Mouth for keyboard with box Mouth for keyboard with box AC70-T3-160G/630P AC70-T3-015G/132P 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.

  • Page 24: Electric Installation

    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.
  • Page 25 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.
  • Page 26 0～10V voltage output (AO1) connect 0～10V voltage output (AO1) 0～20mA current output or (K1) conne 4～20mA current output RS485 communication initial port conne connect matching resistor 120Ω Matching resistor disconnect (K3) conne Table 3-5:AC70 series inverter switch terminal connection function specification...

  • Page 27: Main Circuit Wiring

    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”.
  • Page 28 DC reactor terminal Used for external DC reactor. Inverter input terminal Used to connect 3-phase AC power supply. Inverter output terminal Used to connect the motor. Earth Earth terminal, earth resistance<10 OHM Table 3-6:AC70 series inverter main circuit terminals array and definition...
  • Page 29 AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING 3-phase 380V machine main circuit wiring ● Main circuit terminals Suggested fixed Suggested Copper-core cable Model screw specifications moment (N·m) specification mm (AWG) AC70-T3-R75G/1R5P 1.2～1.5 1.5mm2(14) AC70-T3-1R5G/2R2P 1.2～1.5 2.5mm2(12) AC70-T3-2R2G/004P 1.2～1.5 2.5mm2(12) AC70-T3-004G/5R5P 1.2～1.5...
  • Page 30 AC70 VC CONTROL FREQUENCY INVERTER MANUAL INSTALLATION AND WIRING Single-phase 220V machine main circuit wiring ● Main circuit terminals Suggested fixed Suggested Copper-core cable Model screw specifications moment (N·m) specification mm (AWG) AC70-S2-R40G 1.2～1.5 1.5mm (14) AC70-S2-R75G 1.2～1.5 2.5mm (12) AC70-S2-1R5G 1.2～1.5 2.5mm...
  • Page 31 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...
  • Page 32 Brake resistance wiring of machine with 18.5KW or less power（15KW-18.5KW for steel cover machine） ● Brakeing resistor (-) (+) PB R S T U V W E Fig 3-20: AC70 Series Frequency Inverter Brake resistance wiring of machine with 18.5KW or less power...
  • Page 33 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） ● POWER INPUT...
  • Page 34 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.
  • Page 35 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...
  • Page 36 +24V +24V wind wind double shielded cable exterior 24v power double shielded cable control exterior relay by inner 24V power of inverter control exterior relay by inner 24V power of inverter Chart 3-26:AC70 series inverter digital output signal connection mode...
  • Page 37 STP cable Explaination ： 1 . Bias resistor value calculation ： pulse voltage max pulse output current 1 . Bias resistor power calculation ： pulse voltage bias resistor value Chart 3-28: Pulse input signal connection mode of AC70 series inverter...
  • Page 38 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.

  • Page 39: Chapter 4 Basic Operation And Trial Run

    AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN Chapter 4: Basic Operation and Trial Run 4.1 Safety Precautions 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. ●...

  • Page 40: Keyboard Layout And Function Specification

    AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN 4.2 Keyboard Layout and Functions Specification Keyboard appearance ● Key function ● Name Function Enter menu while standby or running. Press this key to return while modify parameter. While standby or running, press for 1 sec to enter Menu key condition monitoring interface.
  • Page 41 AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN Indicator light meanings ● Name State Meaning Spark Digital display given frequency. Digital display output frequency. Digital display actual output current. Digital display input voltage. Spark Digital display output voltage. Unit indicator light Time unit is second.

  • Page 42: Basic Operation

    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:...
  • Page 43 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.
  • Page 44 AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN 2. Dual line keypad cycle switching display monitor parameters operation flow chart. Giving Input voltage frequency Output Motor speed frequency Output Motor speed frequency Output current PID giving value Output current PID giving value Input voltage...
  • Page 45 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...
  • Page 46 AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN 2, Big keyboard set mode Parameter no Stanby or running state Pameter value Enter menu Enter parameter modify state Change digit Function paramer no Parameter value Parameter no Parameter value spark Change digit Find parameter no Change paramer value...

  • Page 47: Trial Run

    AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN 4.4. Trial Run Trial run commissioning guide ● Start Check power connect if corret, motor wiring if correct Set H-52 to H-56 according to motor nameplate and wiring Press JOG/REV to perform jog run check the direction,if wrong,change wire after cut power or set E-46 to change the direction Whether motor and...
  • Page 48 AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN Parameter auto-tuning selection ● Motor parameter auto-tuning start check inverter power wire connection,check wire connection between inverter and motor,electrify set motor rated power H-52 according to nameplate set motor rated power H-53 according to nameplate set motor rated speed H-54 according to nameplate set motor rated votage H-55 according to...
  • Page 49 AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN Frequency giving flow ● frequency giving main frequency giving channel selection auxilliary channel...
  • Page 50 AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN Start/stop control flow ● direct start constant speed set frequency accelerate start frequency E-01 E-28 E-29 braking and start frequency start constant speed set frequency accelerate start frequency Output frequency constant speed run E-28 E-38...
  • Page 51 AC70 VC CONTROL FREQUENCY INVERTER MANUAL BASIC OPERATION AND TRIAL RUN Open-loop VC control（speed mode） ● start If change motor or electrify for the first time, please self-tuning according to chart 4-7 set E-00=0,choose VC control mode according to chart 4-8,set giving frequency set E-01 to choose run command giving channel according to chart 4-9,set start/stop control trial run...

  • Page 52: Chapter 5 Fault Diagnoses And Processing

    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.
  • Page 53 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FAULT DIAGNOSES AND PROCESSING ● Check input power,clear Over-voltage ●Power voltage fluctuation E.oU4 fault. while stop over limit. ● Seek support from factory. ● Acceleration time is too ● Prolong acc time. short. ● Restart motor until it totally ●...
  • Page 54 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FAULT DIAGNOSES AND PROCESSING earth, shield and deal as required. ● Temperature is too high. ● Make the environment ● Air channel is blocked. meeting the requirement. ● Fan connection parts is ● Clear the air channel. Inverter E.oH loose.
  • Page 55 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FAULT DIAGNOSES AND PROCESSING ● Keyboard wire fault. Keyboard ● Check keyboard wire ERR6 ● Keyboard component connect fault ● Seek support from factory. damage. ● Parameter copy ● Check wire. Parameter communication is fault. E.CPE ●...

  • Page 56: Fault Diagnoses Process

    AC70 VC CONTROL FREQUENCY INVERTER MANUAL FAULT DIAGNOSES AND PROCESSING 5.3 Fault Diagnoses Process System fault diagnoses process system fault Clear short circuit Whether there is short circuit between outout terminal U/V/W and the motor Cable between output terminal U/V/W and motor Short the cable or is too long that leakage current cause inverter protection add outout reactor...
  • Page 57 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FAULT DIAGNOSES AND PROCESSING Over current diagnoses process Decelerate over Accelerate over Constant speed curent E.0C1 curent E.0C2 over curent E.0C3 Whether short circuit between output terminal Clear short circuit U/V/W and motor or earth circuit Reduce load or Whether load is too large enhance power...
  • Page 58 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FAULT DIAGNOSES AND PROCESSING Over voltage diagnoses process ACC over DCC over Stop state over Constant speed voltage(OU1) voltage(OU2) voltage(OU4) over voltage(OU3) Reduce power voltage Fower votage in fixed range or not into fixed range Clear short circuit Phase or earth short cirsuit bwteen U/V/W and motor Stop motor and restart.
  • Page 59 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FAULT DIAGNOSES AND PROCESSING Supply voltage is too low Voltage is too low Voltage is too low while running Lu2 while stop Lu1 Whether power off,including instant power off Restart after reset Change fault component Is there any fault component or bad contact in power circuit and correct bad contact Modify power supply...
  • Page 60 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FAULT DIAGNOSES AND PROCESSING Over load Inverter overload OL2 Motor overload OL1 Whether electric thermal relay overload Change externa characteristic matches the motor overload lthermal relay characteristic Whether electric thermal relay overload Correct setting value relay setting E-50 is suiable Reduce load or Whether load too high...
  • Page 61 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FAULT DIAGNOSES AND PROCESSING Motor heat motor heat Adjust torque imporoving Whether torque improving and V/ Whether motor continuously value and V/F characteristic F characteristic are suitable or not run at low speed Reduce load or Whether load is too large Use special motor for inverter improve capacity...

  • Page 62: Chapter 6 Periodic Overhaul And Maintenance

    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.

  • Page 63: Maintenance

    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.
  • Page 64 ● 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.
  • Page 65 And they can not be used without strict detection after replacement. So we do not suggest the user to replace the other inner components. If they need to change indeed, please contact to the dealer or the sales department of Veichi electric...

  • Page 66: Chapter 7 Peripheral Equipments And Options

    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.
  • Page 67 AC70 VC CONTROL FREQUENCY INVERTER MANUAL PERIPHERAL EQUIPMENTS AND OPTIONS Reduce frequency inverter disturbance to the power and Input side noise filter reduce the power grid disturbance. Braking resistor Passive energy consume unit of electric braking. Electric braking control unit, controlling the braking Consumption braking unit resistance consume the regenerated electric power of the motor efficiently.
  • Page 68 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 terminals R,S,T.
  • Page 69 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.
  • Page 70 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 with the commercial power supply.

  • Page 71: Chapter 8 Function Parameter Specification

    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.
  • Page 72 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].
  • Page 73 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...
  • Page 74 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.
  • Page 75 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）.
  • Page 76 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.
  • Page 77 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION Frequency Frequency Motor Motor Rated freq. Rated freq. Time Time Accel.time1 Decel.time1 Accl.time1 Decel time.1 Linear accel./decel. fig. 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.
  • Page 78 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION Frequency reference given Rang: lower limit frequency-upper limit E-16 Default:50.00Hz by digital keypad frequency It uses to set or modify frequency reference when the frequency given channel is set to operator keypad digital given.
  • Page 79 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...
  • Page 80 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.
  • Page 81 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 Over modulation LED Thousands digit: 0: Over modulation allowed 1: Over modulation not allowed E-24...
  • Page 82 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.
  • Page 83 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.
  • Page 84 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...
  • Page 85 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION The setting value after jumping Jumping frequency 3 Jumping range Jumping range Jumping frequency 2 Jumping frequency 1 Jumping range Setting value 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.
  • Page 86 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.
  • Page 87 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.
  • Page 88 [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...
  • Page 89 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）...
  • Page 90 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION Parameters change E-63 Range:0-2 default: 0 protection 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）.
  • Page 91 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.
  • Page 92 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.
  • Page 93 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION Er.08 Running direction while the latest fault 0.Forward 1.reverse E08H 0. Stop 1. Constant running Er.09 Running status while the latest fault E09H 2. Acceleration 3. Deceleration 0. Normal 1. Only voltage amplitude limit Er.10 Protection status while the latest fault 2.
  • Page 94 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION 93SE Storage fault (Don’t record this fault in fault logging) E.TE1 Stationary auto tuning fault (Don’t record this fault in fault logging) E.TE2 Rational auto turning fault (Don’t record this fault in fault logging) Reserve E.CE RS485 communication fault...

  • Page 95: External Terminal Parameters

    AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION 8.2 External Terminal Parameters Input signal selection 1(X1) Range:0-28 Default:27 F-01 Input signal selection2(X2) Range:0-28 Default:28 F-02 Input signal selection 3(X3) Range:0-28 Default:1 F-03 Input signal selection 4(X4) Range:0-28 Default:2 F-04 Input signal selection 5 (X5) Range:0-28...
  • Page 96 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION Frequency main channel 0-11 frequency input channels selection terminal 3 Frequency main channel selection terminal 4 During the program running, this signal enable program running to pause. Output frequency will be Program running pause 0 if this command is activated, continue to run base on running status before pause if pause signal...
  • Page 97 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.
  • Page 98 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.
  • Page 99 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.
  • Page 100 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION Short connecting with COM stands for ON, disconnecting for OFF Terminal Multi-step control Multi-step control Multi-step control Multi-step control Step terminal 4 terminal 3 terminal 2 terminal 1 Speed F-17-F-18 Reverse F-19 Speed search tracking speed...
  • Page 101 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION to protect over current occurs when load fluctuates suddenly. This parameter is used to define the acceleration /deceleration time of frequency reducing. Range: 0.1-6500.0s F-24 Acceleration time 2 Default: ※ F-25 Deceleration time 2 Range: 0.1-6500.0s...
  • Page 102 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION running statues Output signal when inverter in running status. Reverse running Output signal when inverter runs in reverse direction Under voltage of Output signalwhen inverter shows “LU1/2” alarms due to under voltage inverter Outputs signal, when the output current of frequency inverter reach to Overload pre-alarm...
  • Page 103 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION Frequency arriving detect bias Range: 0.00-50.00Hz F-33 Default: 1.00 Hz Output frequency level detection Range: 0.00-600.0Hz F-34 Default:30.00 Hz Output frequency level detecting F-35 Range: 0.0-20.0s Default: 0.0s relay time When output frequency approaches or close to frequency reference given value, output terminal outputs signal.
  • Page 104 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION F-39 Counter maximum value Range: 1-65000 Default: 1000 F-40 Counter setting value Range: 1-counter maximum value Default: 100 This parameter stipulate the counting action of the interior counter, clock terminal of the counter is selected by the parameter [F-01-F-06].
  • Page 105 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION VS2 terminal input F-49 bipolar control zero Range: 0.00V-3.00V Default: 0.20V hysteresis band VS2 terminal input voltage lower limit This function defines the minimum signal which received by the analog input terminal (VS2).
  • Page 106 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION F-57 corresponding frequency frequency lower limit input voltage F-56 corresponding frequency VS2 input analog lower limit input voltage VS2 unipolar control diagram F-57 corresponding Frequency frequency Lower limit input voltage zero point F-56 corresponding frequency...
  • Page 107 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION F-53 Pulse input frequency lower limit Range: 0.0KHz-[F-54] Default: 0.0KHz F-54 Pulse input frequency upper limit Range:[F-53]-50.0KHz Default:10.0 KHz F-55 Pulse input frequency gain Range: 0.01-5.00 Default: 1.00 Terminal input frequency lower limit This function defines the minimum frequency received by the analog input terminal (PUL).
  • Page 108 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION frequency frequency input quantity fmax fmax input quantity fmin fmin input lower input upper input lower input upper limit limil limit limil Relationship between frequency setting and input quantity Terminal analog input filtering F-59 Range: 0.01-5.00s Default: 0.50s...
  • Page 109 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION Analog output signal F-62 Range: 0000-0023 Default: 0003 selection LED unit digit: A02 output signal mode selection 0: Frequency pulse train output default setting for 0.2KHz to 10.0KHz; 1:0-20mA 2:4-20mA 3:0-10V LED ten digit: A01 output signal mode selection 0:0-10V...

  • Page 110: Special Function Parameters

    AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION UP/DW terminal preset F-70 Range: 0.00Hz-Maximum frequency Default:0.00Hz frequency UP/DW Power-off F-71 Range: 0.00Hz-Maximum frequency Default:0.00Hz memorized frequency The starting frequency output when inverter runs in UP/DW control mode. It is enabled only [F-07] LED ten digit has been set for 1 or 2 .
  • Page 111 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION V1, V2, V3, V4, V5 is base on the frequency rated output voltage H-11 PID output characteristic Range: 0, 1 Default: 0 PID control is a common method used in the process control. The output frequency is adjusted via a series of proportion, integral, differential calculation of difference value between feedback value of controlled object and PID given value, make up a negative feedback PID adjustment to achieve a goal which controlled objected stabilizes on the PID given value.
  • Page 112 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION H-14 Range: 0.00Hz-maximum frequency Default: 0.00Hz PID preset frequency PID preset frequency H-15 Range: 0.1-6500.0s Default: 0.0s running time This function make frequency inverter accelerate to PID preset frequency [H-14] with acceleration time 1 after PI operation starts, and will keep running for PID preset frequency running time [H-15] given, and then executes the PID close loop operation.
  • Page 113 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION H-19 Proportion gain P Range: 0.1-100.0 Default: 20.0 H-20 Integral time constant I Range: 0.1-100.0s Default: 2.0s H-21 Differential gain D Range: 0.0-10.0 Default: 0.0 Adjusting parameters in PID control function, these parameters should be set according to actual system characteristic in respectively.
  • Page 114 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION Sleep threshold value: This parameter use as a standard value for adjusting system if go to sleep mode when no need working. It is that inverter always standby for sleep detecting, if PID feedback value higher than or equal to PID given setting value is detected, and try to keep holding for a while in setting value around, inverter will start sleep detecting.
  • Page 115 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION The acceleration/deceleration time are selected by parameter [H-35-H-42]; Run time is up to parameter [H-43- H-50]; The time unit is second. While the first step time up, it shifts to the next step speed. The time, direction, acceleration/deceleration time of each step speed can be programmed;...
  • Page 116 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION Program run breakpoint restore H-33 Range: 0,1,2 Default: 0 mode selection 0: Running at the first step speed 1: Continue to run with breakpoint running frequency and retiming. 2: Continue to run with the breakpoint running frequency and residual time. This parameter defines the restart running mode after break off due to various reasons (stop, fault, power fail).
  • Page 117 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION Reverse; Acceleration time 1/Deceleration time 3 Reverse; Acceleration time 1/Deceleration time 4 H-43 1 step speed running time T1 Range: 0.0-6000.0 Default: 10.0 H-44 2 step speed running time T2 Range: 0.0-6000.0 Default: 10.0 H-45...
  • Page 118 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION H-54 Motor rated speed Range: 0-18000RPM Default: ※ H-55 Motor rated voltage Range: 0-1500V Default: ※ H-56 Motor rated current Range: 0.1-1000.0A Default: ※ H-57 Motor no load current Range: 0.01-650.00A Default: ※...
  • Page 119 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION H-66 Linkage main station setting Range: 0,1,2 Default: 0 0: Local machine configure as linkage slave station 1: Main station control mode 1. Sent frequency reference and running command of main inverter to slave inverter. 2: Main station control mode 2.
  • Page 120 AC70 VC CONTROL FREQUENCY INVERTER MANUAL FUNCTION PARAMETER DETAILED SPECIFICATION command . 2. No alarm but stop When the inverter setting given communication command doesn’t receive next frame command or any other communication command respond over [H-17] given time, inverter stop running. LED “00”...

  • Page 121: Chapter 9 Appendix

    “〇”: Stand for this parameter can not be modified in running mode. “×”: Stand for this parameter is read only, can’t be modified. “–”: Stand for factory authority parameters. Veichi setting is available only. “ ”: Stand for this parameter is related to frequ ency inverter model.
  • Page 122 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX Frequency reference E-04 0.01-5.00 1.00 104H 〇 given channel gain 0: Main channel is valid, auxiliary channel is invalid. 1: Auxiliary channel valid,main channel invalid 2: Both channel is valid if non zero value, main channel priority 3: Main channel + K×auxiliary channel）...
  • Page 123 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX LED unit digit: decelerate /decelerate mode. 0: linear accelerate 1: S curve LED tens digit: Accelerate/decelerate time datum point. Acceleration /deceleration 0: Motor rated frequency ● E-15 0000 10FH mode selection 1: Maximum frequency LED hundreds digit: Equidistance stop function 0: Disable...
  • Page 124 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX LED unit digit: Auto energy saving selection 0: disable 1: enable LED tens digit: V/F slip compensation Energy saving mode E-23 1000 117H 0: Disable 〇 selection 1: Enable LED hundreds digit: reserved LED thousands digit: Overmodulation 0: Overmodulation allow...
  • Page 125 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX ● E-39 Jump frequency 1 0.00-600.0Hz(Fmax) 0.00Hz 127H ● E-40 Jump frequency 2 0.00-600.0Hz(Fmax) 0.00Hz 128H ● E-41 Jump frequency 3 0.00-600.0Hz(Fmax) 0.00Hz 129H ● E-42 Jump frequency range 0.00-5.00Hz 0.00Hz 12AH Number of auto restart 0: Disable ●...
  • Page 126 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX E-57 reserved 139H E-58 reserved 13AH Rotation speed display ● E-59 0.1-2000.0% 100.0% 13BH scale factor Ratio of inverter output E-60 50-110% 100% 13CH 〇 voltage E-61 G/P type setting 0: G type 1: P type 13DH 〇...
  • Page 127 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX External terminal parameters Comm Refe Code Factory unicati Function name Setting range and define r to function default page code 0: Invalid 1: Forward jog operation Input signal selection 1 2: Reverse jog operation F-01 201H 〇...
  • Page 128 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX LED unit digit: Free stop terminal recover mode 0: Recover to original command with speed search function. 1:Don’t recover to original command after free stop terminal disconnecting. 2: Recover to original command without speed search function. LED ten digit: UP and DW terminal control starting frequency setting...
  • Page 129 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX LED unit digit: Terminal control mode selection 0: Standard running control mode 1: 2wire running control mode 2: 2 wire control mode 1 Terminal running control 3: 3 wire control mode 2 F-08 0000 208H 〇...
  • Page 130 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX 0: Zero frequency (standby state) 1: Fault alarm 1. (Including fault auto reset period. ) 2: Fault alarm 2. (Not includes fault auto reset period.) 3: Frequency arriving detection 4: Frequency level detection 5: Running statues Relay output terminal ●...
  • Page 131 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX VS1 terminal input ● F-41 0.00V- [F-42] 0.50V 229H voltage lower limit VS1 terminal input ● F-42 [F-41]-10.00V 9.50V 22AH voltage upper limit VS1 terminal input ● F-43 0.01-5.00 1.00 22BH voltage gain VS2 terminal input ●...
  • Page 132 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX LED unit digit: VS1 input characteristic selection 0: Positive characteristic 1: Negative characteristic LED ten digit: AS input characteristic selection 0: Positive characteristic 1: Negative characteristic Input signal ● F-58 0000 23AH LED hundred digit: VS2 input characteristic selection characteristic selection 0: Positive characteristic...
  • Page 133 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX Keyboard potentiometer ● 0.00V - [F-68] 0.20V 243H F-67 Input voltage lower limit Keyboard potentiometer ● [F-67] - 5.50V 4.80V 244H F-68 Input voltage upper limit Keyboard potentiometer ● 0.00-5.00 1.00 245H F-69 gain UP/DW terminal preset ●...
  • Page 134 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX Sensor maximum ● H-18 1.0-100.0 100.0 312H measuring range ● H-19 Proportion gain P 0.1-100.0 20.0 313H ● H-20 Integral time constant I 0.1-100.0s 2.0s 314H ● H-21 Differential gain D 0.0-10.0 315H ●...
  • Page 135 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX 6 step speed direction and 5: Reverse; Acceleration time ● H-40 328H accel/decel time 1/Deceleration time 2 6: Reverse; Acceleration time 7 step speed direction and ● H-41 329H 1/Deceleration time 3 accel/decel time 7: Reverse;...
  • Page 136 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX Motor magnetic saturation ● H-65 0-9999 341H ※ coefficient 3 0: Local machine configure as linkage slave station ● H-66 Linkage main station setting 342H 1: Main station control mode 1. 2: Main station control mode 2. ●...

  • Page 137: Appendix 2: Rs485 Communication Protocol

    “inquire/order” of host machine, but no need feedback broadcast. 5.1 Communication frame structure The ModBus protocol communication data format of AC70 series frequency inverter is RTU (remote terminal unit) mode. Communication data format is as follows: The byte composition: Include initiation bit, 8 data bit, check bit and stop bit.
  • Page 138 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX a new frame. Similarly, if the interval between a new frame start-up and the former frame is smaller than 3.5 byte time, the receiving equipment will think that it is the former one frame continuation. Because of the jumbled frame, finally CRC checking value is incorrect, what leads to the communication mistake.
  • Page 139 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX RTU Slave machine responding information (abnormal) Transmission time of 3.5 bytes START Slave machine address Order code Error code CRC CHK low-order CRC CHK high-order Transmission time of 3.5 bytes 5.2.2 Order code:06H, write a Word. Function: write a word data in the designated data address.
  • Page 140 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX Data high-order Data low-order CRC CHK low-order CRC CHK high-order Transmission time of 3.5 bytes RTU Slave machine responding information (normal) START Transmission time of 3.5 bytes Slave machine address Order code Detecting code high-order Detecting code low-order Data high-order Data low-order...
  • Page 141 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX unsigned int crc_value=0xFFFF; int i; while(length--) crc_value^=*data_value++; for(i=0;i<8;i++) if(crc_value&0x0001) crc_value=(crc_value>>1)^0xa001; else crc_value=crc_value>>1; return(crc_value); 5.2.5 Communication data address definition It is used to control frequency inverter operation, get state information and parameter setting of frequency inverter. (1.AC70 serial function parameter address express rules Take frequency inverter function parameter serial numbers as register address which are divided into the high byte and the low byte two parts.
  • Page 142 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX CRC CHK low-order CRC CHK high-order Transmission time of 3.5 bytes Write in EEPRAM, power off with storing. START Transmission time of 3.5 bytes Slave machine address Order code Write data address high-order Write data address low-order Data content high-order Data content low-order...

  • Page 143: Appendix 3: Lcd Keyboard Manual

    AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX Appendix 3: LCD Keyboard Manual 1 Function Characteristic LCD keyboard is designed for user checking function parameters more directly. Language of LCD keyboard includes English and Chinese, and is compatible with other LED keyboard designed by our company. It can display two monitoring parameters at the same time when inverter stops or runs.
  • Page 144 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX 4 Parameters Menu (1) First level menu（Reserve） (2) Second level menu Chart 3(a) Basic parameter Chart 3(b) External terminal Chart 3(c) Function parameter The second level menu include 3 part: Basic parameter, External terminal, Function parameter, as show in chart 3. Press key and enter into 3(a).User can select anyone of them by press key.
  • Page 145 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX 5 Fault Chart 5 (a) fault Chart 5 (b) fault reason Fault: First line displays fault icon shining, second line displays fault code and name, and third line reminder user of pressing to check fault reasons, details refer to chart 5(a). Press to go into fault reason.
  • Page 146 AC70 VC CONTROL FREQUENCY INVERTER MANUAL APPENDIX 8 Self-tuning Detect waiting Resting self-tuning Chart 8 (a) waiting Chart 8 (b) resting type self-tuning Exciting detect Rotary self-tuning Chart 8 (c) rotary type self-tuning Chart 8(d) exciting magnetic detecting Resting type self-tuning: steps as chart 8 (a), (b) and (d).Please set H-62=2, and press key to go into motor detecting waiting menu, details refer to chart 8(a).Then press key, and it will display resting self-tuning, details...

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