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Micno KE300A Series Manual

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Thank you for purchasing KE300A series inverters.
This manual describes how to use KE300A series inverter properly. Please read it carefully before
installation, operation, maintenance and inspection. Besides, please use the product after understanding
the safety precautions.
In order to describe the product's details, the drawings presented in this instruction are
sometimes shown without covers or protective guards. When using the product, please make
sure to install the cover or protective guard as specified firstly, and operate the products in
accordance with the instructions.
Since the drawings in this manual are represented examples, some are subject to differ from
delivered products.
This manual may be modified when necessary because of improvement of the product,
modification or changes in specifications. Such modifications are denoted by a revised manual
No..
If you want to order the manual due to loss or damage, please contact our company agents in
each region or our company customer service center directly.
If there is still any problem during using the products, please contact our company customer
service center directly.
Preface
Precautions

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Do you have a question about the KE300A Series and is the answer not in the manual?

Questions and answers

Someone
May 25, 2025

Error 02 is appearing

0
1 comments:
Mr. Anderson
May 26, 2025

Error 02 (Fault Code E-02) on the Micno KE300A Series indicates "Over current when acceleration." This can be caused by:

1. Short-circuit or ground fault at inverter output.
2. Vector control mode used without motor parameter identification.
3. Acceleration time is too short.
4. Incorrect manual torque boost or V/F curve.
5. Low voltage.
6. Starting a running motor.
7. Sudden load added during acceleration.
8. Inverter capacity is too small.

Recommended solutions:

1. Check motor for damage, insulation wear, or cable damage.
2. Identify motor parameters.
3. Increase acceleration time.
4. Adjust torque boost or V/F curve.
5. Ensure voltage is within normal range.
6. Use speed tracking start or stop motor before starting.
7. Remove sudden load.
8. Use an inverter with appropriate capacity.

This answer is automatically generated

0
Elsidig E. Osman
July 20, 2025

The Group parameters page is not shown on the screen. We need to restore the inverter to factory settings by pressing any kepad buttons or physical switches or jumpers. In addition we interested in maintenance videos or manuals for micno pumping VFD KE300 series. 00249961791038

0
Kavinda
March 19, 2025

KE300-2R2G/004p-T4

User image 67da4d2218f02
-1
1 comments:
Kavinda
March 19, 2025

E-07 what's error what's solutions

User image 67da4f438771a
0

Related Manuals for Micno KE300A Series

Summary of Contents for Micno KE300A Series

  • Page 1 Preface Thank you for purchasing KE300A series inverters. This manual describes how to use KE300A series inverter properly. Please read it carefully before installation, operation, maintenance and inspection. Besides, please use the product after understanding the safety precautions. Precautions ...

  • Page 2: Table Of Contents

    Contents Chapter 1 Safety and Precautions ......................1 1.1 Safety Precautions ........................1 1.2 Precautions ..........................3 Chapter 2 Product Information ......................6 2.1 Product Inspection ........................6 2.2 Model Description ........................6 2.3 Description of Nameplate ......................6 2.4 Selection Guide ........................7 2.5 Technical Specifications......................
  • Page 3 Group PB Wobble Frequency, Fixed Length, Counting ............... 141 Group PC Multi-step Command and Simple PLC Function ............144 Group PD Communication Parameters..................149 Group PP Function Code Management ..................149 Group A0 Torque Control Parameters ..................151 Group A9 Special Function ......................153 Group U0 Monitoring Parameters ....................

  • Page 4: Chapter 1 Safety And Precautions

    KE300A Inverter Safety and Precautions Chapter 1 Safety and Precautions Safety definition: In this manual, safety precautions are classified as follows: Danger: Operations which are not performed according to requirements may cause serious equipment loss or personnel injury. Caution: Operations which are not performed according to requirements may cause medium hurt or light hurt or material loss.
  • Page 5 KE300A Inverter Safety and Precautions 1.1.3 During Wiring:  Operation should be performed by the professional engineering technician. Otherwise there will be danger of electric shock!  There should be circuit breaker between the inverter and power supply. Otherwise, there may be fire! Danger ...

  • Page 6: Precautions

    KE300A Inverter Safety and Precautions electric shock.  If parameter identification is required, due attention should be paid to the danger of injury arising from the rotating motor. Otherwise accident may occur!  Caution Do not change the factory settings at will. Otherwise it may damage the equipment! 1.1.6 During Operation: ...
  • Page 7 KE300A Inverter Safety and Precautions 1.2.3 Running with Frequency higher than Standard Frequency This inverter can provide output frequency of 0Hz to 3000Hz. If the user needs to run the inverter with frequency of more than 50Hz, please take the resistant pressure of the mechanical devices into consideration.
  • Page 8 KE300A Inverter Safety and Precautions 1.2.11 Altitude and Derating In areas with altitude of more than 1,000 meters, the heat sinking effect of the inverter may turn poorer due to rare air. Therefore, it needs to derate the inverter for use. Please contact our company for technical consulting in case of such condition.

  • Page 9: Chapter 2 Product Information

    KE300A Inverter Product Information Chapter 2 Product Information 2.1 Product Inspection Checking the following items when receiving the inverter Confirmation Items Method Confirm if the inverter is what you ordered Check name plate Inspect the entire exterior of the inverter to see if Damaged or not there are any scratches or other damage resulting from shipping...

  • Page 10: Selection Guide

    KE300A Inverter Product Information 2.4 Selection Guide Table 2-1 KE300A Series Inverter Model and Technical Data Motor Rated Input Rated Output Inverter Model Current (A) Current (A) 1AC 220~240V±15% input/output KE300A-04-0R4G-S2 KE300A-04-0R7G-S2 0.75 KE300A-04-1R5G-S2 KE300A-04-2R2G-S2 KE300A-04-004G-S2 KE300A-04-5R5G-S2 KE300A-04-7R5G-S2 KE300A-04-011G-S2 1AC 220~240V±15% input / 3AC 220~240V±15% output KE300A-0R4G-S2 0.75...
  • Page 11 KE300A Inverter Product Information KE300A-110G-T2 KE300A-132G-T2 KE300A-160G-T2 3AC 380~415V±15% KE300A-0R7G/1R5P-T4 0.75/1.5 3.4/5 2.1/3.8 KE300A-1R5G/2R2P-T4 1.5/2.2 5/6.8 3.8/6 KE300A-2R2G/004P-T4 2.2/4.0 6.8/10 KE300A-004G/5R5P-T4 4.0/5.5 5/7.5 10/15 9/13 KE300A-5R5G/7R5P-T4 5.5/7.5 7.5/10 15/20 13/17 KE300A-7R5G/011P-T4 7.5/11 10/15 20/26 17/25 KE300A-011G/015P-T4 11/15 15/20 26/35 25/32 KE300A-015G/018P-T4 15/18.5 20/25...

  • Page 12: Technical Specifications

    1400 1860 1510 1460 KE300A-1600G-T6 1600 2130 1780 1720 2.5 Technical Specifications Table 2-2 KE300A Series Inverter Technical Specifications Item Technical Index Specification Input voltage 1AC/3AC 220V±15%, 3AC 380V±15%, 3AC 660V±15% Input Input frequency 47~63Hz Output voltage 0～rated input voltage...
  • Page 13 KE300A Inverter Product Information Speed adjustment 1:100 (SVC), 1:50 (V/f) range Speed control ±0.5% (SVC) precision 1.0--16.0kHz, automatically adjusted according to temperature and Carrier frequency load characteristics Digital setting: 0.01Hz Frequency accuracy Analog setting: maximum frequency * 0.05% Torque boost Automatically torque boost;...

  • Page 14: External & Installation Dimensions

    KE300A Inverter Product Information interface Multifunction key QUICK/JOG key, can be used as multifunction key -10℃～40℃, derated 4% when the temperature rise by every 1℃ Ambient temperature (40℃～50℃). Environ- Humidity 90%RH or less (non-condensing) ment ≤1000M: output rated power, ＞1000M: output derated Altitude Storage -20℃～60℃...
  • Page 15 KE300A Inverter Product Information Inverter mounting hole Inverter hoisting hole Keypad bracket Control board Main circuit wiring When installing a cabinet, can outlet front, back, left and right Figure 2-3 Parts of inverter...
  • Page 16 KE300A Inverter Product Information 2.6.2 External & Installation Dimensions 1AC 220V output 0.4～11kW inverters dimension 124.8 50.00 121.8 Grounding 0.4~1.5kW 5 0 .0 0 2.2kW...
  • Page 17 KE300A Inverter Product Information 4.0~11kW External Dimension Installation Dimension Power Mounting ( mm ) ( mm ) Range Bolt Model 0.4~1.5kW 148.4 124.8 2.2kW 122.6 4.0kW 273.5 5.5kW 329.1 177.2 316.6 7.5kW 397.6 185.2 384.1 11kW 439.6 402.4 209.6 423.6 1AC/3AC 220V 0.4～30kW inverters dimension 124.
  • Page 18 KE300A Inverter Product Information 5 0 .0 0 2.2~4.0kW 5.5~15kW 18.5～30kW...
  • Page 19 KE300A Inverter Product Information External Dimension Installation Dimension Power Mounting ( mm ) ( mm ) Range Bolt Model 0.4~1.5kW 148.4 124.8 2.2kW 4.0kW 122.6 5.5kW 273.5 7.5kW 329.1 177.2 316.6 11kW 397.6 185.2 384.1 15kW 439.6 402.4 209.6 423.6 18.5~22kW 521.2 30kW...
  • Page 20 KE300A Inverter Product Information 110～160kW External Dimension Installation Dimension Power Mounting ( mm ) ( mm ) Range Bolt Model 37kW 45~55kW 695.5 75~90kW 110~160kW 1390 1350 With base...
  • Page 21 KE300A Inverter Product Information 3AC 380V inverters dimension 5 0 .0 0 0.75～5.5kW 7.5～30kW...
  • Page 22 KE300A Inverter Product Information 37～200kW (including 90～200kW standard inverter (without base)) 5 0 .0 0 90～200kW nonstandard inverter (with base)
  • Page 23 KE300A Inverter Product Information External Dimension Installation Dimension ( mm ) ( mm ) Power Mounting Range Bolt Model 0.75~2.2kW 4.0～5.5kW 122.6 7.5~11kW 273.5 15kW 329.1 177.2 316.6 18.5~22kW 397.6 185.2 384.1 30kW 439.6 402.4 209.6 423.6 37~45kW 521.2 55~75kW 90~110kW 695.5 (without base)
  • Page 24 KE300A Inverter Product Information 220～1400kW with base External Dimension Installation Dimension Power Mounting ( mm ) ( mm ) Range Bolt Model 220~315kW (without base) 220~315kW 1390 1350 (with base) 350~710kW 1170 1100 1146 (without base) 350~710kW 1690 1650 (with base) 800~1400kW 1250 1395...
  • Page 25 KE300A Inverter Product Information 3AC 660V inverters dimension 15～200kW (without base) 5 0 .0 0 160～200kW (base is optional)
  • Page 26 KE300A Inverter Product Information External Dimension Installation Dimension ( mm ) ( mm ) Power Mounting Range Bolt Model 15~30kW 504.4 208.4 530.5 (without base) 37~132kW 695.5 (without base) 160~200kW (without base) 160~200kW 1165 1125 (with base) Note: Base is optional for 160~200kW inverters. Standard invertes are without base. 220～1600kW without base...
  • Page 27 KE300A Inverter Product Information 220～1600kW with base External Dimension Installation Dimension Power Mounting ( mm ) ( mm ) Range Bolt Model 220~250kW (without base) 220~250kW 1390 1350 (with base) 280~800kW 1170 1100 1146 (without base) 280~800kW 1690 1650 (with base) 900~1600kW 1250 1395...
  • Page 28 KE300A Inverter Product Information 2.6.3 Keypad External Dimension 30.2 5 0 .0 0 Keypad dimension of 1AC/3AC 220V 0.4~1.5kW inverters Illustration: This keypad can be connected with the inverter externally by ordinary network cable, also can be mounted on the front side of panel directly. The suggested thickness of panel is 1.2mm. 55.4 The installation size on the panel while using this keypad...
  • Page 29 KE300A Inverter Product Information 27.4 Keypad dimension of other inverters Illustration: This keypad can be connected with the inverter externally by ordinary network cable, and it needs an additional bracket to fix it. 69.5 73.3 16.6 65*100mm keypad bracket dimension 65*100mm hole dimension of keypad bracket...

  • Page 30: Routine Maintenance Of Inverter

    KE300A Inverter Product Information 2.7 Routine Maintenance of Inverter 2.7.1 Routine Maintenance The influence of the ambient temperature, humidity, dust and vibration will cause the aging of the devices in the inverter, which may cause potential fault of the inverter or reduce the service life of the inverter. Therefore, it is necessary to carry out routine and periodical maintenance on the inverter.

  • Page 31: Instructions On Warranty Of Inverter

    Free warranty only applies to the inverter itself. MICNO provides 12 month warranty (starting from the date of original shipment as indicated on the barcode) for the failure or damage under normal use conditions. If the equipment has been used for over 12 months, reasonable repair expenses will be charged.

  • Page 32: Chapter 3 Mechanical And Electric Installation

    KE300A Inverter Mechanical and Electric Installation Chapter 3 Mechanical and Electric Installation 3.1 Mechanical Installation 3.1.1 Installation environment 1) Ambient temperature: The ambient temperature exerts great influences on the service life of the inverter and is not allowed to exceed the allowable temperature range (-10℃ to 50℃). 2) The inverter should be mounted on the surface of incombustible articles, with sufficient spaces nearby for heat sinking.

  • Page 33: Electrical Installation

    4) In the applications where there are metal dusts, it is recommended to mount the radiator outside the cabinet. In this case, the space in the sealed cabinet should be large enough. 3.2 Electrical Installation 3.2.1 Guide to the external electrical parts Table 3-1 Selection Guide of External Electrical Parts of KE300A Series Inverter Recommended Recommended Recommended...
  • Page 34 KE300A Inverter Mechanical and Electric Installation KE300A-022G-T2 KE300A-030G-T2 KE300A-037G-T2 KE300A-045G-T2 KE300A-055G-T2 KE300A-075G-T2 KE300A-090G-T2 3AC 380V KE300A-0R7G/1R5P-T4 KE300A-1R5G/2R2P-T4 KE300A-2R2G/004P-T4 KE300A-004G/5R5P-T4 KE300A-5R5G/7R5P-T4 KE300A-7R5G/011P-T4 KE300A-011G/015P-T4 KE300A-015G/018P-T4 KE300A-018G/022P-T4 KE300A-022G/030P-T4 KE300A-030G/037P-T4 KE300A-037G/045P-T4 KE300A-045G/055P-T4 KE300A-055G/075P-T4 KE300A-075G/090P-T4 KE300A-090G/110P-T4 KE300A-110G/132P-T4 KE300A-132G/160P-T4 KE300A-160G/185P-T4 KE300A-185G/200P-T4 KE300A-200G/220P-T4 150*2 150*2 KE300A-220G/250P-T4 150*2 150*2 KE300A-250G/280P-T4 185*2...
  • Page 35 KE300A Inverter Mechanical and Electric Installation 3.2.2 Connection to peripheral devices Figure3-2 Diagram of the connection to peripheral devices  Do not install the capacitor or surge suppressor at the output side of the inverter, otherwise it may cause inverter failure or capacitor and surge suppressor damaged. ...
  • Page 36 KE300A Inverter Mechanical and Electric Installation  The details of external devices and accessories selection refer to the manual of external devices. 3.2.3 Using instruction of the external electrical parts Table 3-2 Using Instruction of the External Electrical Parts Part Name Installing Location Function Description Disconnect the power supply when the equipment at the...
  • Page 37 KE300A Inverter Mechanical and Electric Installation 3.2.4 Wiring diagram Instantaneous shortcut protection circuit 3AC(1AC) 220 0.4-1.5kW Inverter MOTOR 15% 50/60Hz Multifunctional On-off input 1 Multifunctional On-off input 2 Multifunctional On-off input 3 Multifunctional On-off input 4 Multifunctional On-off input 5 Jumper J2 Analog output 1 0-10V/4-20mA...
  • Page 38 KE300A Inverter Mechanical and Electric Installation ( ≤ 22kw built-in 30kw optional for built-in ≥ 37kw optional for external connection) DC reactor Braking resistor (optional for inverter above 30kw) Instantaneous shortcut protection circuit 3 phase 380 15% MOTOR 50/60Hz Inverter Multifunctional 0n-off input 1 Multifunctional 0n-off input 2 Multifunctional 0n-off input 3...
  • Page 39 KE300A Inverter Mechanical and Electric Installation Note: 1. Terminal ◎ refers to the main circuit terminal, terminal ○ refers to the control circuit terminal. 2. Built-in braking unit is standard in the inverters below 30kW, and optional for 30kW inverters. 3.
  • Page 40 KE300A Inverter Mechanical and Electric Installation Figure 3-9 Main circuit terminals（3AC 380V, 11～15kW） Figure 3-10 Main circuit terminal（3AC 380V, 18.5～30kW） Figure 3-11 Main circuit terminals（3AC 380V, 37～75kW） Figure 3-12 Main circuit terminals（3AC 380V, 90～1400kW） 2) Instructions of main circuit terminals Terminal Name Description...
  • Page 41 KE300A Inverter Mechanical and Electric Installation connected reversely, or it may damage the inverter and even cause fire. The wiring length of the brake unit should not exceed 10 meters. Twisted wires or pair wires should be used and connected in parallel. Do not connect the brake resistor directly to the DC bus, or it may damage the inverter and even cause fire.
  • Page 42 KE300A Inverter Mechanical and Electric Installation 2) Function description of control terminal Table 3-3 Description of Control Terminal Function Terminal Type Terminal Name Function Description Symbol Provide +10V power supply for external units, and the maximum output current is 10mA. +10V~ External +10V It is generally used as the operating power supply for the...
  • Page 43 KE300A Inverter Mechanical and Electric Installation It can be used as high speed pulse output or open collector output which is determined by function code P5-00. High speed pulse output: maximum frequency is 100kHz Open collector output :Optical coupling isolation, dual High speed pulse Digital polarity...
  • Page 44 KE300A Inverter Mechanical and Electric Installation Cross in the same direction or wind 2 or 3 coils in the same direction External analog source 0.022 uF,50V Ferrite bead Figure 3-16 Connection of analog Input b) Digital input terminal It needs to employ shielded cable generally, with cable length of no more than 20 meters. When active driving is adopted, necessary filtering measures should be taken to prevent the interference to the power supply.
  • Page 45 KE300A Inverter Mechanical and Electric Installation D1~D7 terminal connection: PNP type +24V +VCC +24V 3.3 Ω 4.7K Signal 4.7K Control board of inverter External controller Figure 3-18 PNP type wiring In this type, +24V terminal must disconnect with PLC terminal, +24V should connect the common port of external controller, and meantime short connect PLC and COM.

  • Page 46: Chapter 4 Operation And Display

    KE300A Inverter Operation and Display Chapter 4 Operation and Display 4.1 Keypad Description With the operation keypad, it can perform such operations on the inverter as function parameter modification, working status monitor and running control (start and stop). Figure4-1 Operation Keypad Diagram 1) Function key description Function indicator Description...
  • Page 47 KE300A Inverter Operation and Display 2) Unit indicator light description Unit indicator Description Frequency unit Current unit Voltage unit Rotation speed unit ％ Percentage 3) Digital display zone Five-number digit LED display, can display setting frequency, output frequency, various monitoring data and alarm code.

  • Page 48: Function Code Checking And Modification Methods Description

    Operation and Display 4.2 Function Code Checking and Modification Methods Description The operation keypad of the KE300A Series Inverter adopts three-level menu structure to carry out operations such as parameter setting. The three-level menu includes function parameter group (level 1 menu) → Function code (level 2 menu) →...

  • Page 49: Stand By

    KE300A Inverter Operation and Display 4.5 Stand By In stop or stand by status, parameters of multi-status can be displayed. Whether or not to display this parameter can be chosen through function code P7-05 (Stop status display parameter) according to binary bits.
  • Page 50 KE300A Inverter Operation and Display P1-06: Stator resistance P1-07: Rotor resistance P1-08: Leakage inductance P1-09: Mutual inductance P1-10: Current without load Finally, complete the automatic tuning of motor parameters. If the motor cannot be completely disconnected with the load, set P1-11 to “1” (static tuning), and then press RUN key on the keyboard panel.

  • Page 51: Chapter 5 Function Parameter List

    Function Parameter List Chapter 5 Function Parameter List The function parameters of KE300A series inverter have been divided into 19 groups including P0~PP, A0, U0 according to the function. Each function group contains certain function codes. For example, “P1-10” means the tenth function code in the P1 function group. P0~PE are basic function parameter groups; PF is factory parameter group (users are forbidden to access);...

  • Page 52: Basic Function Parameter Table

    KE300A Inverter Function Parameter List 5.1 Basic Function Parameter Table Function Factory Name Detailed instruction Modify code default P0 Group: Basic Function 1: G model (constant torque load ◎ P0-00 Inverter model model) 2: P model (fan and pump load model) 0: V/F control ◎...
  • Page 53 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default 1: A - B 2: Max (A, B) 3: Min (A, B) Keypad reference P0-08 0.00Hz ~ maximum frequency:P0-10 50.00Hz ○ frequency Running direction 0: Forward P0-09 ○...
  • Page 54 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default 2: 100Hz Running frequency 0: Running frequency ◎ P0-26 command UP/DN 1: Setting frequency reference Units place: Operation keypad command combination with frequency source 0: No combination 1: Keypad 2: AI1 3: AI2...
  • Page 55 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default 0.001 Ω ~ 65.535 Ω Motor ( Inverter power≤55kW) ◎ P1-07 Rotor resistance paramet 0.0001Ω ~ 6.5535Ω ( Inverter power＞55kW) 0.01mH ~ 655.35mH Motor ( Inverter power≤55kW) ◎...
  • Page 56 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default 6: Min (AI1, AI2) 7: Max (AI1, AI2) Full scale of 1-7 selection corresponds to P2-10 Torque upper limit P2-10 0.0% ~ 200.0% 150.0% ○ digital setting P3 Group: V/F Control Parameters 0: Linear 1: Multiple-point...
  • Page 57 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default 8: Coast to stop 9: Fault reset (RESET) 10: Pause running 11: External fault (normal open) input 12: Multi-step speed terminal 1 13: Multi-step speed terminal 2 14: Multi-step speed terminal 3 15: Multi-step speed terminal 4 16: ACC/DEC selection terminal 1...
  • Page 58 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default switching 47: Emergency stop 48: External stop terminal 2 49: Deceleration DC braking 50: The running time reset P4-07 ● Reserved P4-09 ○ P4-10 Terminal filter time 0.000s ~ 1.000s 0.010s 0: Two-line mode 1...
  • Page 59 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default P4-30 HDI maximum input P4-28 ~ 100.00kHz 50.00 ○ HDI maximum input P4-31 -100.0% ~ 100.0% 100.0% ○ corresponding setting P4-32 HDI filter time 0.00s ~ 10.00s 0.10s ○...
  • Page 60 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default 7: Inverter overload pre-alarm 8: Setting count value arrival 9: Designated count value arrival 10: Length arrival 11: PLC loop completed 12: Accumulated running time arrival 13: Frequency limiting 14: Torque limiting 15: Ready for running 16: AI1>AI2...
  • Page 61 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default 0: Running frequency P5-06 HDO function selection ○ 1: Setting frequency AO1 output function P5-07 ○ 2: Output current select ion 3: Output torque 4: Output power 5: Output voltage 6: Pulse input 7: AI1...
  • Page 62 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default 0: No output ○ P6-01 VF 0Hz output mode 1: With output Units place: Overmodulation option 0: Disable 1: Enable P6-02 Overmodulation selection Tens place: Deep overmodulation ○...
  • Page 63 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default 2: FDW/REV Switching 3: Forward Jog 4: Reverse Jog STOP/RST 0: Valid when keypad control P7-02 ○ function selection 1: Always valid 0000 ~ FFFF Bit00: Running frequency 1 (Hz) Bit01: Setting frequency (Hz) Bit02: Bus voltage (V) Bit03: Output voltage (V)
  • Page 64 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default Bit02: DI input status Bit03: DO output status Bit04: AI1 voltage(V) Bit05: AI2 voltage(V) Bit06: Radiator temperature Bit07: Count value Bit08: Length value Bit09: PLC step Bit10: Load speed Bit11: PID setting Bit12: HDI input pulse frequency (kHz) Load speed...
  • Page 65 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default Model P8-07 Acceleration time 4 0.1s ~ 3600.0s ○ depend Model P8-08 Deceleration time 4 0.1s ~ 3600.0s ○ depend P8-09 Jump frequency 1 0.00Hz ~ P0-10 (maximum frequency) 0.00Hz ○...
  • Page 66 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default Any arrival frequency P8-30 0.00Hz ~ P0-10 (maximum frequency) 50.00Hz ○ detection value 1 Any arrival frequency P8-31 0.0% ~ 100.0% (maximum frequency) 0.0% ○ detection amplitude 1 Any arrival frequency P8-32 0.00Hz ~ P0-10 (maximum frequency)
  • Page 67 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default range) P8-50 Wake up delay time 0.0s ~ 3600.0s 0.0s ○ P8-51 Dormancy frequency 0.00Hz ~ P0-10 (maximum frequency) 0.00Hz ○ P8-52 Dormancy delay time 0.0s ~ 3600.0s 0.0s ○...
  • Page 68 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default 8: Reserved 9: Under voltage 10: Inverter overload 11: Motor overload Input side phase failure Output side phase failure 14: Module overheat 15: External fault 16: Communication fault 17: Contactor fault 18: Current detection fault 19: Motor autotuning fault...
  • Page 69 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default Power-on time at the third － － P9-23 ● (latest) fault Running time at the third － － P9-24 ● (latest) fault Frequency at the second － －...
  • Page 70 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default Ten thousands place: communication fault (16) Units place: Encoder/PG card fault 0: Coast to stop Tens place: Function code R/W fault 0: Coast to stop Fault protection action ○...
  • Page 71 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default selection when fault 1: Run at setting frequency 2: Run at upper limit frequency 3: Run at lower limit frequency 4: Run at abnormal backup frequency Abnormal backup 60.0% ~ 100.0% (100.0% corresponds ○...
  • Page 72 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default 6: AI1+AI2 7: MAX (|AI1|, |AI2|) 8: MIN (|AI1|, |AI2|) 0: Positive PA-03 PID action direction ○ 1: Negative PA-01(PID given through keypad)~ PA-04 PID given feedback range 100.0 ○...
  • Page 73 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default Units place: Integration separate 0: Invalid 1: Valid PA-25 PID integration attribute Tens place: Stop integrating or not after ○ output reach limit 0: Keep integrating 1: Stop integrating 0.0%: No judgment for feedback lost PID feedback lost PA-26...
  • Page 74 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default PC-08 Multi-step command 8 -100.0% ~ 100.0% 0.0% ○ PC-09 Multi-step command 9 -100.0% ~ 100.0% 0.0% ○ PC-10 Multi-step command 10 -100.0% ~ 100.0% 0.0% ○ Multi-step command 11 PC-11 -100.0% ~ 100.0%...
  • Page 75 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default phase ACC/DCC PC-31 0 ~ 3 ○ time selection PC-32 phase running time 0.0s (m) ~ 6500.0s (m) 0.0s (m) ○ phase ACC/DCC PC-33 0 ~ 3 ○...
  • Page 76 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default Pd Group: Communication Parameters 0: 300BPS 1: 600BPS 2: 1200BPS 3: 2400BPS Pd-00 Baud rate ○ 4: 4800BPS 5: 9600BPS 6: 19200BPS 7: 38400BPS 0: No parity check ( 8-N-2 ) 1: Even parity check ( 8-E-1 ) Pd-01 Data format...
  • Page 77 KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default Function code 0: Disable ○ PP-04 modification attribute 1: Enable A0 Group: Torque Control Parameters Speed/torque control 0: Speed control ◎ A0-00 mode selection 1: Torque control 0: Keypad (A0-03) 1: AI1 2: AI2...

  • Page 78: Monitoring Parameter Table

    KE300A Inverter Function Parameter List Function Factory Name Detailed instruction Modify code default Double-speed over-current stall action ◎ A9-07 40%～200% current compensation coefficient PID double-speed ○ A9-08 1～200 coefficient 0：0-10V AO1 output analog signal ◎ A9-09 selection 1：4-20mA 0：0-10V AO2 output analog signal ◎...
  • Page 79 KE300A Inverter Function Parameter List Function code Name Minimum unit U0-21 AI1 voltage before calibration 0.001V U0-22 AI2 voltage before calibration 0.001V U0-23 Keypad potentiometer voltage before calibration 0.001V U0-24 linear velocity 1m/Min U0-25 Current power-on time 1Min U0-26 Current running time 0.1Min U0-27 HDI input pulse frequency...

  • Page 80: Chapter 6 Parameter Description

    1: G model: Applicable to constant torque load. 2: P model: Applicable to constant power load. KE300A series inverter adopts G/P combination mode, the suitable motor power of constant torque load (G model) is one size smaller than fan and pump loads (P model).
  • Page 81 2: Al1 3: Al2 The reference frequency is set by analog input. KE300A series inverter provides 2 analog input terminals (AI1, AI2). Both of AI1 and AI2 are 0~10V / 0~20mA input terminal. User can select the corresponding relation between the objective frequency and the input voltage value of AI freely.
  • Page 82 KE300A Inverter Parameter Description 50kHz. Pulse given can only be input from the multifunctional input terminal HDI. 6: Multi-step speed The reference frequency is determined by P4 and PC groups. The selection of steps is determined by combination of multi-step speed terminals. 7: Simple PLC User can set reference frequency, hold time, running direction of each step and acceleration/deceleration time between steps.
  • Page 83 KE300A Inverter Parameter Description Auxiliary Frequency source B Factory default 100% range P0-06 Setting range 0% ~ 150% When the frequency source selection is frequency combination reference (P0-07 is set to 1 or 3), the two parameters are used to determine the adjustment range of auxiliary frequency source. P0-05 is used to determine the relative object of that range.
  • Page 84 Setting range 50.00Hz ~ 300.00Hz The maximum output frequency of KE300A series inverter is 3000Hz. When P0-22 is set to 1, frequency resolution is 0.1Hz, P0-10 setting range is 50.0Hz～3000.0Hz; When P0-22 is set to 2, frequency resolution is 0.01Hz, P0-10 setting range is 50.0Hz～300.0Hz.
  • Page 85 KE300A Inverter Parameter Description It is used to define the source of frequency upper limit. The frequency upper limit can be sourced from either digital setting (P0-12) or analog input. When the analog input is used to set the frequency upper limit, 100% of analog input setting is relative to P0-12.
  • Page 86 KE300A Inverter Parameter Description → High Inverter temperature rise Small → Big Leakage current Small → Big External radiation interference Carrier frequency adjusting Factory default according to temperature P0-16 0: No Setting range 1: Yes The inverter can automatically adjust the carrier frequency according to its temperature. This function can reduce the possibility of overheat alarm of the inverter.
  • Page 87 KE300A Inverter Parameter Description KE300A series inverter offers three ACC/DEC time units, they are 1s, 0.1s, 0.01s. Note: When modifying this function parameter, 4 group ACC/DEC time display decimal place changes, the corresponding ACC/DEC time also changes. Auxiliary frequency source offset Factory default 0.00Hz...
  • Page 88 KE300A Inverter Parameter Description Running frequency command Factory default UP/DN reference P0-26 Running frequency Setting range Setting frequency This parameter is only valid when frequency source is set by keypad. It is used to confirm which mode would be used to modify setting frequency when keys “▲”, “▼” or terminal UP, DOWN acts, namely, whether reference frequency increases/decreases on the basic of running frequency, or increases/decreases on the basic of setting frequency.

  • Page 89: Group P1 Motor Parameters

    KE300A Inverter Parameter Description Group P1 Motor Parameters Motor type Factory default Common asynchronous motor P1-00 Setting range Variable frequency asynchronous motor Motor rated power Factory default Model depend P1-01 Setting range 0.1kW ~ 1000.0kW Motor rated voltage Factory default Model depend P1-02 Setting range...
  • Page 90 KE300A Inverter Parameter Description P1-10 as standard Y series motor parameters. If motor parameters autotuning failed in the site, please input the related parameters provided by the motor manufacturer. Motor parameters autotuning Factory default No operation P1-11 Setting range Static autotuning Rotation autotuning 0: No operation, prohibit motor parameter autotuning.

  • Page 91: Group P2 Vector Control Parameters

    KE300A Inverter Parameter Description Group P2 Vector Control Parameters Group P2 is valid only for vector control. That is to say, when P0-01= 1, it is valid, and when P0-01=0, it is invalid. Speed loop proportional gain 1 Factory default P2-00 Setting range 1 ~ 100...
  • Page 92 KE300A Inverter Parameter Description If factory default cannot meet the requirements, the relevant parameter values can be subject to fine tuning. Increase the proportional gain while ensuring no oscillation to the system, and then reduce the integration time to ensure that the system has quick response characteristics and small overshoot. Caution: Improper PI parameter setting may cause too large speed overshoot.
  • Page 93 KE300A Inverter Parameter Description Torque upper limit source under Factory default speed control mode P2-10 P2-09 Setting range Keypad potentiometer High speed pulse HDI Communication Torque upper limit digital setting Factory default 150.0% P2-10 Setting range 0.0% ~ 200.0% In the speed control mode, the maximum of the inverter output torque is controlled by the torque upper limit source.

  • Page 94: Group P3 V/F Control Parameters

    KE300A Inverter Parameter Description Group P3 V/F Control Parameters This group of function code is enabled only for V/F control (P0-01=2) and is invalid for vector control. V/F control is applicable for the general loads such as fan and pump or the applications where one inverter drives multiple motors or the inverter power is one level lower or higher than the motor power.
  • Page 95 KE300A Inverter Parameter Description Output voltage Output frequency V1:Manual torque boost voltage Vb:Maximum output voltage fb:Rated running frequency f1:Manual torque boost voltage Figure 6-3 Manual torque boost diagram V/F frequency point 1 Factory default 0.00Hz P3-03 Setting range 0.00Hz ~ P3-05 V/F voltage point 1 Factory default 0.0%...
  • Page 96 KE300A Inverter Parameter Description V/F slip compensation gain Factory default 0.0% P3-09 Setting range 0% ~ 200.0% It is valid only for V/F control. Setting this parameter can compensate the slip of motor speed caused by the load increases, and makes the motor speed stably when the load changes.

  • Page 97: Group P4 Input Terminal

    KE300A Inverter Parameter Description Group P4 Input Terminal The standard inverter has 7 multifunctional digital input terminals (HDI can be used as high speed pulse input terminal) and two analog input terminals. P4-00 D1 terminal function Factory default P4-01 D2 terminal function Factory default P4-02 D3 terminal function...
  • Page 98 KE300A Inverter Parameter Description Setting Function Description value terminal 4 ACC/DEC time selection terminal 1 It can select four types of ACC/DEC time though 4 statuses of the two terminals. See attached table 2. ACC/DEC time selection terminal 2 Used to switch different frequency source. According to the setting of frequency source selection (P0-07), Main frequency when setting switching between two frequency sources is frequency...
  • Page 99 KE300A Inverter Parameter Description Setting Function Description value When this terminal is valid, PID integration adjustment function will PID integration stop stop working, but PID ratio adjustment & differential adjustment function are still valid. Switch frequency When this terminal is valid, frequency source A is replaced by source A to preset preset frequency (P0-08) frequency...
  • Page 100 KE300A Inverter Parameter Description Multi-step command 9 PC-09 Multi-step command 10 PC-10 Multi-step command 11 PC-11 Multi-step command 12 PC-12 Multi-step command 13 PC-13 Multi-step command 14 PC-14 Multi-step command 15 PC-15 When the frequency source selection is multi-step speed, 100% of PC-00~PC-15 correspond to P0-10 (maximum frequency).
  • Page 101 KE300A Inverter Parameter Description Running command Stop Forward [FWD] Reverse Reverse [REV] Forward COM Digital public terminal Stop Figure 6-5 Two-line Running Mode 1 1: Two-line running mode 2: When this mode is adopted, REV is enabled terminal. The direction is determined by the status of FWD.
  • Page 102 KE300A Inverter Parameter Description Forward [FWD] Three-line running control Reverse [REV] COM Digital public terminal Figure 6-7 Three-line Running Mode 1 Where, SB1: Stop button SB2: Forward rotation button SB3: Reverse rotation button 3: Three-line running mode 2: In this mode, DI is enabled terminal, and the running command is given by FWD, while the direction is determined by the status of REV.
  • Page 103 KE300A Inverter Parameter Description UP/DN change rate Factory default 1.00Hz/s P4-12 Setting range 0.001Hz/s ~ 50.000 Hz/s Terminals UP/DOWN is used to adjust the change rate when setting frequency. When P0-22 is set to 2, the range is 0.001~50.000Hz/s. When P0-22 is set to 1, the range is 0.01~50.00Hz/s. AI curve 1 minimum input Factory default 0.00V...
  • Page 104 KE300A Inverter Parameter Description Corresponding setting (frequency,torque) 100% 0V(0mA) 10V(20mA) -100% Figure 6-9 Corresponding Relationship between Analog Reference and Setting AI curve 2 minimum input Factory default 0.00V P4-18 Setting range 0.00V ~ P4-20 AI curve 2 minimum input corresponding Factory default 0.0% setting...
  • Page 105 KE300A Inverter Parameter Description HDI minimum input Factory default 0.00kHz P4-28 Setting range 0.00kHz ~ P4-30 HDI minimum input corresponding setting Factory default 0.0% P4-29 Setting range -100.00% ~ 100.0% HDI maximum input Factory default 50.00kHz P4-30 Setting range P4-28 ~ 100.00kHz HDI maximum input setting Factory default 100.0%...
  • Page 106 KE300A Inverter Parameter Description If the selection is 1, when AI input is lower than “the minimum input”, the analog value corresponding setting is 0.0%. DI1 delay time Factory default 0.0s P4-35 Setting range 0.0s ~ 3600.0s DI2 delay time Factory default 0.0s P4-36...

  • Page 107: Group P5 Output Terminal

    KE300A Inverter Parameter Description Group P5 Output Terminal The standard inverter has 2 multifunctional analog output terminals, 2 multifunctional relay output terminals, 1 HDO terminal (can be used as either high-speed pulse output terminal or collector open output). HDO terminal output selection Factory default P5-00 High speed pulse output...
  • Page 108 KE300A Inverter Parameter Description Setting Function Description value limit, it outputs ON signal. In speed control mode, when the output torque reaches torque Torque limiting limit, the inverter is in stall protection status and outputs ON signal. When the main circuit and control circuit power supply are Ready for running connected, the inverter protection function is invalid, and the inverter is in running status, it outputs ON signal.
  • Page 109 KE300A Inverter Parameter Description Setting Function Description value temperature can be checked via U0-34) This running time exceeds the time set by P8-53, the inverter This running time arrival outputs ON signal. P5-06 HDO function selection Factory default P5-07 AO1 output function selection Factory default P5-08 AO2 output function selection...
  • Page 110 KE300A Inverter Parameter Description AO1 gain Factory default 1.00 P5-11 Setting range -10.00 ~ +10.00 AO2 Zero-offset coefficient Factory default 0.00% P5-12 Setting range -100.0% ~ +100.0% AO2 gain Factory default 1.00 P5-13 Setting range -10.00 ~ +10.00 The parameters are used to correct the zero drift of the analog output and the output amplitude deviation. They can also be used to define custom AO output curve.

  • Page 111: Group P6 Start And Stop Control

    KE300A Inverter Parameter Description Group P6 Start and Stop Control Start mode Factory default Direct start P6-00 Setting range Speed tracking and restart Pre-excitation start 0: Direct start If DC braking time is set to 0, the inverter will start from the start frequency. If DC braking time is set to nonzero value, DC braking will be performed firstly, then the inverter starts from the start frequency.
  • Page 112 KE300A Inverter Parameter Description Start frequency Factory default 0.00Hz P6-03 Setting range 0.00Hz ~ 10.00Hz Start frequency holding time Factory default 0.0s P6-04 Setting range 0.0s ~ 100.0s Set proper start frequency can increase the start torque. If the reference frequency is less than start frequency, inverter will be at stand-by status, and has no output.
  • Page 113 S-curve ACC/DEC A S-curve ACC/DEC B 0: Linear ACC/DEC The output frequency increases or decreases according to the straight line. KE300A series inverter has 4 kinds of ACC/DEC time, which can be set by P4-00 ~ P4-06. 1: S-curve ACC/DEC A The output frequency increases or decreases according to S-curve.
  • Page 114 KE300A Inverter Parameter Description Output frequency (Hz) Setting frequency (f) Rated frequency (fb) Time (t) Figure 6-11 S-curve ACC/DEC A diagram Stop mode Factory default P6-10 Deceleration to stop Setting range Coast to stop 0: Deceleration to stop After the stop command is valid, the inverter reduces the output frequency according to the DEC time and will stop after the frequency reduces to zero.
  • Page 115 KE300A Inverter Parameter Description Output frequency (Hz) Dc braking start frequency after stop Time (t) Output voltage Dc braking waiting time after stop Dc braking current after stop Time (t) Dc braking time after stop Running command Figure 6-12 DC braking diagram Braking usage ratio Factory default 100%...

  • Page 116: Group P7 Keypad And Display

    KE300A Inverter Parameter Description Group P7 Keypad and Display Inverter rated power Factory default Model depend P7-00 Setting range 0.1kW~1000.0kW Display inverter rated power. QUICK/JOG function selection Factory default Invalid Switching between keypad command and remote command (terminal command and communication command) P7-01 Setting range FDW/REV Switching...
  • Page 117 KE300A Inverter Parameter Description Running status display 1 Factory default Running frequency(Hz) Setting frequency(Hz) DC bus voltage(V) Output voltage(V) Output current(A) Output power(kW) Output torque DI input status 0000 15 14 13 12 11 10 P7-03 Setting range FFFF DO output status AI1 voltage(V) AI2 voltage(V) Radiator temperature...
  • Page 118 KE300A Inverter Parameter Description Running status display 2 Factory default PID feedback PLC phase HDI frequency(kHz) Running frequency 2(Hz) Remain running time AI1 voltage before calibration(V) AI2 voltage before calibartion(V) Reserved 15 14 13 12 11 10 0000 P7-04 Setting range Linear speed FFFF...
  • Page 119 KE300A Inverter Parameter Description Stop status display Factory default Setting frequency(Hz) Bus voltage(V) DI input status DO output status AI1 voltage(V) AI2 voltage(V) Radiator temperature Count value 0000 P7-05 Setting range 15 14 13 12 11 10 FFFF Length value PLC phase Load speed PID setting...
  • Page 120 KE300A Inverter Parameter Description Load speed display coefficient Factory default 3.0000 P7-06 Setting range 0.0001 ~ 6.5000 The correspondence of the inverter output frequency and the load speed can be adjusted via this parameter when the load speed needs to be displayed. －...
  • Page 121 KE300A Inverter Parameter Description Accumulated power-on time Factory default P7-13 Setting range 0h ~ 65535h Display the accumulated power-on time after production. When this time reaches the value set by P8-17, the inverter multifunctional digital output function (24) outputs ON signal. Accumulated power consumption Factory default P7-14...

  • Page 122: Group P8 Enhanced Function

    Setting range 0.1s ~ 3600.0s KE300A series inverter supplies 4 kinds of ACC/DEC time. The principles of them are the same. Please refer to description of P0-17 and P0-18 for more details. User can select the one of 4 kinds ACC/DEC time thought the different combination of DI terminals. See the description of P4-00~P4-05, then pay attention to Function (16) &...
  • Page 123 KE300A Inverter Parameter Description Output frequency ( Hz) Jump frequency amplitude Jump frequency 2 Jump frequency amplitude Jump frequency amplitude Jump frequency 1 Jump frequency amplitude Time (t) Figure 6-13 Jump frequency diagram FWD/REV dead time Factory default 0.0s P8-12 Setting range 0.00s ~ 3600.0s FWD/REV dead time: The waiting and holding time before the motor changes its spinning direction after...
  • Page 124 KE300A Inverter Parameter Description It is used to select the inverter running status when the setting frequency is lower than the frequency lower limit. Droop control Factory default 0.00Hz P8-15 Setting range 0.00Hz ~ 10.00Hz When several motors drive the same load, each motor's load is different because of the difference of motor's rated speed.
  • Page 125 KE300A Inverter Parameter Description Frequency arrival detection amplitude Factory default 0.0% P8-21 Setting range 0.00 ~ 100% (maximum frequency) When output frequency is within the detecting range of reference frequency, an ON-OFF signal will be output. The function can adjust the detecting range. Output frequency ( Hz) Reference frequency Detection amplitude...
  • Page 126 KE300A Inverter Parameter Description Deceleration time 1 and deceleration time 2 Factory default 0.00Hz switching frequency point P8-26 Setting range 0.00Hz ~ P0-10 (maximum frequency) This function is valid when don’t use DI terminal to switch ACC/DEC. Suitable for the inverter running process, choose different ACC/DEC time according to the running frequency range (instead of through DI terminals).
  • Page 127 0.0% ~ 100.0% (maximum frequency) When the output frequency reaches positive or negative detection amplitude of frequency detection value, DO outputs ON signal. KE300A series inverter provides two parameters of any arrival frequency detection value, used to set frequency value and frequency detection range.
  • Page 128 0.0% ~ 300.0% (motor rated current) When the output current is in the range of positive or negative detection amplitude of setting any arrival current, DO terminal outputs ON signal. KE300A series inverter provides two parameters of any arrival current and detection amplitude.
  • Page 129 KE300A Inverter Parameter Description Output current Any arrival current amplitude Any arrival current Any arrival current amplitude Time (t) Any arrival current detection signal DO or Relay Figure 6-22 Any arrival current detection diagram Timing function selection Factory default P8-42 Invalid Setting range Valid...
  • Page 130 KE300A Inverter Parameter Description When the converter radiator temperature reaches this value, DO outputs “module temperature arrival” ON signal. Cooling fan control Factory default P8-48 0: Fan runs when operation Setting range 1: Fan always runs It is used to select cooling fan action mode, When the selection is 0, cooling fans run when the inverter running, when the inverter stops &...

  • Page 131: Group P9 Fault And Protection

    KE300A Inverter Parameter Description Group P9 Fault and Protection Motor overload protection selection Factory default P9-00 Invalid Setting range Valid Motor overload protection gain Factory default 1.00 P9-01 Setting range 0.20 ~ 10.00 P9-00=0: Has no motor overload protection function, may cause the motor overheating damaged. P9-00=1: The inverter judges whether the motor is overload or not according to the inverse time limit curve of motor overload protection.
  • Page 132 KE300A Inverter Parameter Description During the inverter ACC/DEC, when the output current exceeds over-current stall protection current, the inverter stops ACC/DEC, runs with the current frequency, continue ACC/DEC after the output current is reduced. Over-current stall gain is used to adjust the suppression over-current capacity during ACC/DEC. The bigger this value is, the stronger the capacity is.
  • Page 133 KE300A Inverter Parameter Description ≥7.5kW Three phase 220V ≥11kW Three phase 380V ≥11kW Three phase 480V Three phase 660V Output phase failure protection selection Factory default P9-13 Setting range 0: Invalid 1: Valid Select to protect output phase failure or not. P9-14 The first fault type P9-15...
  • Page 134 KE300A Inverter Parameter Description P9-37 The first fault frequency P9-38 The first fault current P9-39 The first fault bus voltage P9-40 The first fault input terminal status Same as P9-17 ~ P9-24 P9-41 The first fault output terminal status P9-42 The first fault inverter status P9-43 The first fault power on time...
  • Page 135 KE300A Inverter Parameter Description Ten thousands PID feedback lost when running (E-31) (same as place units place of P9-47) Fault protection action selection 4 Factory default 00000 Speed deviation oversize (E-42) (same as units Units place place of P9-47) Motor over speed (E-43) (same as units place of Tens place P9-50 P9-47)
  • Page 136 KE300A Inverter Parameter Description Instantaneous power-off action Factory default 80.0% judgment voltage P9-62 Setting range 60.0% ~ 100.0% (standard bus voltage) The function is that, when instantaneous power off or voltage drops suddenly, the inverter will reduce output speed to decrease compensation voltage for DC bus which is generated by the load feedback energy, so that keep the inverter running.
  • Page 137 KE300A Inverter Parameter Description If off-load protection function is valid, when the output current is smaller than off-load detection level P9-64, lasts for longer than off-load detection time P9-65, the output frequency will reduce to 7% of the rated frequency automatically. During off-load protection, if load recovers, the inverter will recover and run with the setting frequency automatically.

  • Page 138: Group Pa Pid Function

    KE300A Inverter Parameter Description Group PA PID Function PID control is a common used method in process control, such as flow, pressure and temperature control. The principle is firstly to detect the bias between preset/given value and feedback value, then calculate output frequency of inverter according to proportional gain, integral and differential time.
  • Page 139 KE300A Inverter Parameter Description These parameters are used to select PID given and feedback source. Notice: Given value and feedback value of PID are percentage values. 100% of given value is corresponding to 100% of feedback value. Given source and feedback source must not be same, otherwise PID will be malfunction. PID action direction Factory default Positive...
  • Page 140 KE300A Inverter Parameter Description PID deviation limit Factory default 0.0% PA-09 Setting range 0.0% ~ 100.0% When the deviation between PID given value and feedback value is smaller than PA-09, PID stops adjustment. The output frequency is stable when the deviation is small, which is suitable for some close loop control applications.
  • Page 141 KE300A Inverter Parameter Description Setting range Switching via terminals Automatic switching according to the deviation PID parameter switching deviation 1 Factory default 20.0% PA-19 Setting range 0.0% ~ PA-20 PID parameter switching deviation 2 Factory default 80.0% PA-20 Setting range PA-19 ~ 100.0% In some applications, one group PID parameter is not enough, different PID parameters would be adopted according to the situation.
  • Page 142 KE300A Inverter Parameter Description Output frequency (Hz) PID initial value PA-21 Time (t) PID initial value holding time PA-22 Figure 6-26 PID initial value function diagram Forward maximum value between Factory default 1.00% two output deviation PA-23 Setting range 0.00% ~ 100.00% Reverse maximum value between Factory default 1.00%...
  • Page 143 KE300A Inverter Parameter Description PID feedback lost detection value Factory default 0.0% PA-26 0.0%: No judgment for feedback lost Setting range 0.1% ~ 100.0% PID feedback lost detection time Factory default 1.0s PA-27 Setting range 0.0s ~ 20.0s The parameters are used to judge whether PID feedback lost or not. When PID feedback is smaller than feedback lost detection value (PA-26), lasts for longer than PID feedback lost detection time (PA-27), the inverter alarms fault E-31, and handles according to the chose fault process mode.

  • Page 144: Group Pb Wobble Frequency, Fixed Length, Counting

    KE300A Inverter Parameter Description Group PB Wobble Frequency, Fixed Length, Counting The wobble frequency function is suitable for textile, chemical fiber industries, and the applications which require traversing and winding functions. The wobble frequency function means that the output frequency of the inverter wobbles up and down with the setting frequency as the center.
  • Page 145 KE300A Inverter Parameter Description This parameter is used to determine the values of wobble amplitude and sudden jump frequency. The wobble frequency is limited by the frequency upper limit and frequency lower limit. The wobble amplitude is relative to the central frequency (variable wobble amplitude, select PB-00=0): wobble amplitude: AW=frequency source: P0-07 ×...
  • Page 146 KE300A Inverter Parameter Description The counting value can be collected via digital input terminals. The relative input terminal function need to be set to 25 (Counter input) for applications, HDI must be used when the pulse frequency is high. When the counting value reaches PB-08, DO outputs “setting counting value arrival” ON signal, then the counter will stop counting.

  • Page 147: Group Pc Multi-Step Command And Simple Plc Function

    Parameter Description Group PC Multi-step Command and Simple PLC Function The multi-step command of KE300A series inverter has more functions than normal multi-step speed. Besides multi-step speed functions, it can be used as the given source of the process PID.
  • Page 148 KE300A Inverter Parameter Description Multi-step command can be used in two situations: as frequency source or as the setting source of the process PID. In two situations, the dimension of the multi-step command is relative value, range -100.0%~100.0%, When as the frequency source is the percentage of the relative maximum frequency, multi-step command as PID setting source does not need dimension switching, because PID given is relative value.
  • Page 149 KE300A Inverter Parameter Description Simple PLC storage selection when Factory default power-down Units place When power-off Not store PC-17 Store Setting range Tens place When stop No store Store PLC storage when power-off means the last PLC running phase and running frequency are memorized before power-off, keep running from the memory status after power-on next time.
  • Page 150 KE300A Inverter Parameter Description 5th Phase ACC/DEC time selection Factory default PC-29 Setting range 0 ~ 3 6th Phase running time Factory default 0.0s (m) PC-30 Setting range 0.0s (m) ~ 6500.0s (m) 6th Phase ACC/DEC time selection Factory default PC-31 Setting range 0 ~ 3...
  • Page 151 KE300A Inverter Parameter Description 14th Phase ACC/DEC time selection Factory default PC-47 Setting range 0 ~ 3 15th Phase running time Factory default 0.0s (m) PC-48 Setting range 0.0s (m) ~ 6500.0s (m) 15th Phase ACC/DEC time selection Factory default PC-49 Setting range 0 ~ 3...

  • Page 152: Group Pd Communication Parameters

    KE300A Inverter Parameter Description Group PD Communication Parameters Refer to the Communication Protocol for details. Group PP Function Code Management User password Factory default PP-00 Setting range 0 ~ 65535 Any non-zero number can be set, and then the password protection function will be enabled. When user enters into the menu next time, “-----”...
  • Page 153 KE300A Inverter Parameter Description The customer setting function code parameter can be modified or not, is used to protect function parameter being modified improperly. When the function code is set to 0, all the function codes can be modified, when the function code is set to 1, all the function codes only can be viewed, but not modified.

  • Page 154: Group A0 Torque Control Parameters

    KE300A Inverter Parameter Description Group A0 Torque Control Parameters A0 group defaults to the hidden parameter group, the display attribute of A0 group can be modified via setting PP-02, please refer to PP-02 for details. Speed/torque control mode selection Factory default A0-00 Speed control Setting range...
  • Page 155 KE300A Inverter Parameter Description Torque control forward maximum Factory default 50.00Hz frequency A0-05 Setting range 0.00Hz ~ P0-10 (maximum frequency) Torque control reverse maximum Factory default 50.00Hz frequency A0-06 0.00Hz ~ P0-10 (maximum frequency) Setting range It is used to set forward or reverse maximum running frequency in torque control. When torque control, if the load torque is smaller than the motor output torque, the motor speed will increase, and the motor maximum speed should be limited to protect mechanical system from galloping or other accidents.

  • Page 156: Group A9 Special Function

    KE300A Inverter Parameter Description Group A9 Special Function If need to use this parameter group, please set PP-02 to be 11. Water supply function Factory default A9-00 Disable Setting range Enable After enabling this function, combining with the PID group, it can realize the constant pressure water supply function that an inverter drives 4 pumps.
  • Page 157 KE300A Inverter Parameter Description Figure 6-30 Constant pressure water supply logic diagram Figure 6-31 Constant pressure water supply wiring diagram...
  • Page 158 KE300A Inverter Parameter Description Inverter Power Power Power Power frequency frequency frequency supply pump 3# pump 1# pump 2# Figure 6-32 Constant pressure water supply electrical schematic diagram When the inverter running frequency reaches the upper limit frequency and after a certain delay, the T1 relay closes the output, the KM1 contactor closes, and the 1# power frequency pump starts and runs at the power frequency directly.
  • Page 159 KE300A Inverter Parameter Description Over-surrent stall action current =(fn/fs) k limitCur Over-surrent stall action current Double rated Rated frequency frequency Figure 6-33 Double-speed over-current stall action diagram Note: 1. Over-current stall action current 180% means 1.8 times of the rated current of inverter; 2.

  • Page 160: Group U0 Monitoring Parameters

    KE300A Inverter Parameter Description Group U0 Monitoring Parameters For the convenience of the field debugging, U0 group indicates running status of inverter. User can view them on the keypad. Code Name Range U0-00 Running frequency 0.00 ～ 320.00Hz(P0-22=2) 0.0 ～ 3200.0Hz(P0-22=1) U0-01 Setting frequency U0-00 displays absolute value of theoretical running frequency of the inverter.
  • Page 161 KE300A Inverter Parameter Description Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Code Name Range 0 ～ 1023 U0-08 DO output status U0-07 displays the digital value output terminal state which can be expressed by a 8-bit binary code; if the inverter detects that the output of corresponding terminal is high level (closed), then this bit is set to "1", if the output of corresponding terminal is low level (open), then the bit is set to "0".
  • Page 162 KE300A Inverter Parameter Description Code Name Range 0 ～ 65535 U0-14 Load speed U0-14 displays the speed of load. Refer to the description of P7-12 in user manual. Code Name Range 0 ～ 65535 U0-15 PID setting 0 ～ 65535 U0-16 PID feedback U0-15 displays the setting value of PID.
  • Page 163 KE300A Inverter Parameter Description P8-43 and P8-44). Code Name Range 0.00 ～10.57V U0-21 AI1 voltage before calibration 0.00 ～10.57V U0-22 AI2 voltage before calibration Keypad potentiometer voltage 0.00 ～10.57V U0-23 before calibration U0-21 displays the sampling voltage of analog input 1(AI1). U0-22 displays the sampling voltage of analog input 2(AI2).
  • Page 164 KE300A Inverter Parameter Description Code Name Range 0.00 ～ 320.00Hz U0-31 Auxiliary fre. B display U0-31 displays the frequency of auxiliary reference-input-channel (Refer to P0-04). When P0-22 is set to 1, the range is -3200.0 to 3200.0 (Unit: Hz). When P0-22 is set to 2, the range is -320.00 to 320.00 (Unit: Hz). Code Name Range...
  • Page 165 KE300A Inverter Parameter Description Code Name Range U0-42 DO input status visual display U0-42 displays the digital value output terminal state on the keypad intuitively. Code Name Range U0-43 DO input status visual display 1 U0-43 displays whether intuitive display function 1-40 are valid or not. There are 5 digital tubes on keypad.
  • Page 166 KE300A Inverter Parameter Description Code Name Range U0-44 DI input status visual display 2 U0-44 displays whether intuitive display function 41-59 are valid or not. There are 5 digital tubes on keypad. Every digital tube has 8 segments, and each segment indicates a certain function selection.

  • Page 167: Chapter 7 Emc (Electromagnetic Compatibility)

    KE300A Inverter EMC (Electromagnetic Compatibility) Chapter 7 EMC (Electromagnetic Compatibility) 7.1 Definition Electromagnetic compatibility is the ability of the electric equipment to work in the electromagnetic interference environment and implement its function stably without interferences in the electromagnetic environment. 7.2 EMC Standard Description In accordance with the requirements of the national standard GB/T12668.3, the inverter needs to comply with electromagnetic interference and anti-electromagnetic interference requirements.
  • Page 168 KE300A Inverter EMC (Electromagnetic Compatibility) It is recommended that the output power cables of the inverter employ shield cables or steel pipe shielded cables and that the shielding layer be earthed reliably. The lead cables of the equipment suffering interferences are recommended to employ twisted-pair shielded control cables, and the shielding layer should be earthed reliably.
  • Page 169 KE300A Inverter EMC (Electromagnetic Compatibility) capacitance is, the larger the leakage current will be. The distributed capacitance can be reduced by effectively reducing the distance between the inverter and the motor. The higher the carrier frequency is, the larger the leakage current will be. The leakage current can be reduced by reducing the carrier frequency.

  • Page 170: Chapter 8 Trouble Shooting

    KE300A Inverter Trouble shooting Chapter 8 Trouble Shooting 8.1 Fault and Trouble Shooting Fault Name Converter short circuit protection Fault Code E-01 1. Short-circuit or ground fault occurred at inverter output side 2. The cable connecting the motor with the inverter is too long 3.
  • Page 171 KE300A Inverter Trouble Shooting Fault Name Over-current when deceleration Fault Code E-03 1. Short-circuit or ground fault occurred at inverter output side 2. Control mode is vector control & motor parameters are not identified 3. The deceleration time is too short Reason 4.
  • Page 172 KE300A Inverter Trouble Shooting Fault Name Over-voltage when deceleration Fault Code E-06 1. The input voltage is too high 2. There is external force driving the motor to run during deceleration Reason 3. The deceleration time is too short 4. Have not installed braking unit and braking resistor 1.
  • Page 173 KE300A Inverter Trouble Shooting Fault Name Inverter over load Fault Code E-10 1. The load is too heavy or motor blockage occurs Reason 2. Capacity of inverter is too small 1. Reduce the load, check the status of motor & machinery Solution 2.
  • Page 174 KE300A Inverter Trouble Shooting Fault Name IGBT module over-heat Fault Code E-14 1. Ambient temperature is too high 2. Air duct is blocked 3. Cooling fans are broken Reason 4. Thermal resistor(temperature sensor) of the module is broken 5. IGBT module is broken 1.
  • Page 175 KE300A Inverter Trouble Shooting Fault Name Auto tuning fault Fault Code E-19 1. Motor parameters are set improperly Reason 2. Parameter identification process is delayed 1. Set parameters according to the motor nameplate Solution 2. Check the cables connecting inverter with motor Fault Name EEPROM read/write fault Fault Code...
  • Page 176 KE300A Inverter Trouble Shooting Fault Name Customized fault 2 Fault Code E-28 1. DI terminal receives signal of customized fault 2 Reason 1. Reset running Solution Fault Name Accumulated power-on time arrival fault Fault Code E-29 1. The accumulated power-on time reaches the setting value Reason 1.

  • Page 177: Common Faults And Solutions

    KE300A Inverter Trouble Shooting 8.2 Common Faults and Solutions Fault Reason Solution The input voltage is 0 or too low. The switching power supply on the Check input power-supply. No display power board is broken. Reconnect the keypad and 40-core when power-on Rectifier bridge is broken.

  • Page 178: Chapter 9 Modbus Communication Protocol

    MODBUS communication. 9.4 Protocol Description KE300A series inverter communication protocol is a kind of asynchronous serial master-slave communication protocol. In the network, only one equipment (master) can build a protocol (Named as “Inquiry/Command”). Other equipments (slave) response “Inquiry/Command” of master only by providing the data, or doing the action according to the master’s “Inquiry/Command”.

  • Page 179: Communication Data Structure

    MODBUS Communication Protocol 9.5 Communication Data Structure MODBUS protocol communication data format of KE300A series inverter is shown as following: In RTU mode, the Modbus minimum idle time between frames should be no less than 3.5 bytes. The checksum adopts CRC-16 method. All data except checksum itself sent will be counted into the calculation.
  • Page 180 KE300A Inverter MODBUS Communication Protocol Slave responding information Address Command Code Byte Number Data F002H High byte Data F002H Low byte Data F003H High byte Data F003H Low byte CRC Low byte CRC High byte 9.6.2 Command code: 06H, write a word For example: Write 5000(1388H) into address F00AH, slave address 02H.
  • Page 181 KE300A Inverter MODBUS Communication Protocol The CRC is started by 0xFFFF. Then a process begins of applying successive eight-bit bytes of the message to the current contents of the register. Only the eight bits of data in each character are used for generating the CRC.
  • Page 182 KE300A Inverter MODBUS Communication Protocol Note: Group PF: Either the parameter cannot be read, nor be changed. Group U0: Only for reading parameter, cannot be changed parameters. Some parameters cannot be changed during operation; some parameters regardless of what kind of status the inverter in, the parameters cannot be changed.
  • Page 183 KE300A Inverter MODBUS Communication Protocol Parameter Address Parameter Description 1010 PID setting 1011 PID feedback 1012 PLC running process 1013 HDI input pulse frequency, unit is 0.01kHz 1014 Feedback speed, unit is 0.1Hz 1015 Remain running time 1016 AI1 voltage before calibration 1017 AI2 voltage before calibration 1018...
  • Page 184 KE300A Inverter MODBUS Communication Protocol (4) Read inverter status: (read only) Status Word Address Status Word Function 0001：Forward running 3000 0002：Reverse running 0003：Stop (5) Parameters locking password check: (If the return is 8888H, it means the password check passes.) Password Address Content of Input password 1F00 *****...
  • Page 185 KE300A Inverter MODBUS Communication Protocol 2：Record information clearly 1F01H 3：Restore user backup parameters 501：Back up user current parameters (11) Inverter fault code description: Inverter Fault Address Inverter Fault Information 0000：No fault 0001：Reserved 0002：Over current when acceleration 0003：Over current when deceleration 0004：Over current when constant speed running 0005：Over voltage when acceleration 0006：Over voltage when deceleration...

  • Page 186: Pd Group Communication Parameter Description

    KE300A Inverter MODBUS Communication Protocol 0000：No fault 0001：Password error 0002：Command error 0003：CRC check error 8001 0004：Invalid address 0005：Invalid parameter 0006：Parameter changing invalid 0007：System locked 0008：EEPROM operating 9.7 PD Group Communication Parameter Description Baud Rate Factory Setting 6005 0：300BPS 1：600BPS 2：1200BPS Pd-00 3：2400BPS Setting range...
  • Page 187 KE300A Inverter MODBUS Communication Protocol host computer. If the response delay is less than system processing time, then the response delay is based on the system processing time. If the response delay is more than system processing time, after the system processing the data, it should be delayed to wait until the response delay time arrives, then sending data to host computer.

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