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Eleris EM303B User Manual

General purpose inverter
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User Manual
EM303B General Purpose Inverter
Thank you for purchasing EM303B series inverter.
Document No.: 31010032
Version No.:104
Issue Date: 11/2015
EM303B is a general purpose vector control inverter. An induction motor with the help of
EM303B canpossess fast speed response and torque control ability as a DC motor which
makes the motion control system stable, precise,and quick.

Main Features:

1. SVC (Sensorless vector control):Torque control accuracy: 5% rated torque. Speed
control accuracy: ± 0.2% rated synchronous speed.
2. VVF (Vector decoupling based VF control): The steady performanceis the same as that
in SVC.
3. Wide speed regulation range, load capacity at low frequency: SVC/0.5Hz/150% rated
load, VVF/1.0Hz/150% rated load.
4. Optimized current and voltage protection algorithm ensures that motor can
accelerate/deceleratein 0.1S.
5. AVR function makes output voltage stable at grid voltage fluctuation.
6. Load disturbance compensation ensures failure-free operation of motor.
7. Auto-searching motor speed at restart smoothes thestart of motor without current
over-shoot.
8. 2 acceleration/deceleration modes: linear and S curve.
9. The performance and stability are improved significantly with dual- CPU.
It is the duty of any user to perform the appropriate, correct installation or configuration of
the optional parameters of the devices. Neither SINEE nor its distributors shall be responsible
or liable for misuse of the information contained herein or mismatching the inverter with the
motor.
In the interests of commitment to a policy of continuous development and improvement,
SINEE reserves the right to update the specification of the product or its performance, or the
content herein without notice.

Preface

1
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Summary of Contents for Eleris EM303B

  • Page 1 Version No.:104 Issue Date: 11/2015 EM303B is a general purpose vector control inverter. An induction motor with the help of EM303B canpossess fast speed response and torque control ability as a DC motor which makes the motion control system stable, precise,and quick.

  • Page 2: Table Of Contents

    User Manual www.eleris.ru EM303B General Purpose Inverter Contents PREFACE ............. 1 CONTENTS ............2 SAFETY INFORMATION ..........4 ............. 4 AFETY RECAUTIONS 1OVERVIEW ............8 ......8 1.1 EM303B M ODEL IST AND ECHNICAL PECIFICATIONS ........ 10 1.2 D EM303B O...
  • Page 3 User Manual www.eleris.ru EM303B General Purpose Inverter ......... 122 ECTION DVANCED ARAMETERS ........122 7.8 F6 G PLC F ROUP IMPLE UNCTION ......128 7.9 F7 G ROUP DVANCED ARAMETERS OF PERATION ........133 7.10 F8 G ROUP NPUT UTPUT ........

  • Page 4: Safety Information

    User Manual www.eleris.ru EM303B General Purpose Inverter Safety Information Danger: The addition of this symbol to a Danger or Warning safety label indicates that an electrical hazard exists, which will result in personal injury if the instructions are not followed.
  • Page 5 User Manual www.eleris.ru EM303B General Purpose Inverter Wiring: Danger 1． Wiring must be performed by authorized and qualified personnel. Risk of danger. 2． Circuit-breaker should be installed between inverter and the mains. Risk of fire. 3． Be sure that the power supply is off before wiring, and ground inverter as per standard wiring.
  • Page 6 User Manual EM303B General Purpose Inverter After Power-on Danger 1. Do not touch the inverter and its peripheral circuits with wet hands. Rick of electrical hazard. 2. Do not touch any input/output terminals of inverter with bare hands. Rick of electrical hazard.
  • Page 7 User Manual EM303B General Purpose Inverter During Operation Danger 1. Do not touch cooling fans, heat sink, metal panel, or discharge resistor with bare hands. Risk of burning. 2. Non-professionals shall not detect signals during operation. Risk of personal injury or device damage.

  • Page 8: Overview

    740/820 Remarks: EM303B is an integrated model with G (fixed torque) and P (square torque) in one. The data listed above is of Model G. When applied to square torque like blower, water pump and etc., the power ratings of applicable motor can be one grade higher. See inverter’s nameplate for...
  • Page 9 User Manual www.eleris.ru EM303B General Purpose Inverter 1.1.2 EM303B Technical Specifications Table 1-2 EM303B Technical specifications Items Specifications 3-phase 380VAC± 20%, 50~60Hz± 5%, Input Rated Voltage voltage imbalance rate <3% Output Voltage 3-phase, from 0 to U supply Rated Output Current...
  • Page 10 User Manual EM303B General Purpose Inverter 1.2 Definition of EM303B Operation Status 1.2.1 Operation Status of Inverter  Parameters setting status After power is on, inverter finishes initialization and enters standby status without fault or start-up command. Meanwhile, it does not output.
  • Page 11 . See Figure 1-1 and Figure 1-2 for the details of all speed setting modes of EM303B. F3-00~F3-14 F9-08 sets analog signals(VS/VF/IS/IF/VP）...
  • Page 12 User Manual EM303B General Purpose Inverter FA-06 sets analog signals F5-11 （VS/VF/IS/IF/VP）*torque setting value. The analog signals here stand for: Analog signal voltage/10*100% Analog signal current/20*100% FA-06: the ones place 0: Primary Numeric Torque Setting 1: VP Keypad Potentiometer 2：VS 3：IS...

  • Page 13: Utlook

    User Manual EM303B General Purpose Inverter 1.3 EM303B Outlook See Figure 1-4 for the outlook of EM303B (Instance: EM303B- 4.0kW). Housing Upper Keypad Mounting Hole Housing Middle Nameplate Housing Base Mounting Hole Figure1-4 EM303B Outlook The housing upper can be disassembled by following the arrow shown in Figure1-4.

  • Page 14: Installation

    User Manual EM303B General Purpose Inverter 2 Installation 2.1 Verifying Product Refer to Table 2-1, and check and verify the EM303B. Table 2-1 Check List Item Action If the products are identical to the purchase Check the devices reference marked on the order.
  • Page 15 EM303B General Purpose Inverter 2.2 Overall and Installation Dimensions EM303B can be classified to 10 sizes for total 30 models. See Figure 2-1 and Table 2-2 for installation dimensions. The keypad can be installed on the metal panel separately with a hole size of 116.5±...
  • Page 16 Heights of optional chassis: 120mm, 253mm, 253mm,308mm, 308mmand 355mm. Please order the extra chassis if needed, and see Section 11.6 for details. 2. EM303B-090~400: power input terminals are on the top, and power output terminals are at the bottom of the inverter.
  • Page 17 2.4 Direction and Space of Installation Cooling fan(s) installed inside EM303B is for forced air cooling. For good cooling circulation, please mount inverter vertically, and leave sufficient space between the inverter and wall or other objects. See Figure 2-2.
  • Page 18 EM303B is mounted in an enclosed place. 2. The HDC is calculated based on the rated voltage, rated current and preset carrier frequency of each model. 3. 3. If more than one EM303B have to be installed in an enclosed place, please add HDC and MAF.
  • Page 19 Generally it is unnecessary to disassemble the keypad, and just remove the cover to assemble and wire. On special occasions, disassemble the keypad by following steps.  Remove the front cover: For EM303B-0R7~7R5, push the cover vertically from the bottom with two hands, and then lift up outwards. See Figure 2-3.
  • Page 20 User Manual EM303B General Purpose Inverter Figure 2-4 Disassemble the Keypad  Assemble the keypad: Place the bottom of keypad in the slot and then press the top to push until it clicks into right place. See Figure 2-5. Figure 2-5 Assemble the Keypad...
  • Page 21 User Manual EM303B General Purpose Inverter 2.6 Flush Mounting EM303B-090,EM303B-110～132,EM303B-160～200 can be installed in flush mounting. The mounting method： Please move the flanges on the top and bottom of the housing from the place as shown in Figure 2-6 to the place as shown in Figure 2-7. It only needs to unscrew the boltsof flanges and assemble at the right places.

  • Page 22: Wiring

    User Manual EM303B General Purpose Inverter 3 Wiring 3.1 Connections to Peripherals Connections between EM303B and its peripherals are shown in Figure 3-1 Mains Circuit Breaker or Leakage Switch Contactor Input AC Reactor BR100 Braking Unit Input Noise Filter Braking Resistor...

  • Page 23: Wiring Main Circuit Terminals

    User Manual EM303B General Purpose Inverter 3.2 Wiring Main Circuit Terminals 3.2.1 Main Circuit Terminal Block The main circuit terminals of EM303B are located on the control PCBA:  3-phase AC input terminals: R,S,T  Grounding terminal:  DC bus terminal: 、...
  • Page 24 EM303B-315～400 Remarks: EM303B -090 or above: Power input terminals R, S, and T are on the top, and power output terminals are at the bottom of the inverter. EM303B -220 or above: There are 2 wiring screws for each terminal.
  • Page 25 User Manual EM303B General Purpose Inverter 3.2.3 Internal Main Circuit See Figure 3-3 for the internal main circuit structure of EM303B. Figure 3-3 Internal Main Circuit EM303B-0R7~015 EM303B-018~30 Mains Control Circuit Mains Control Circuit Cooling Fan Cooling Fan EM303B-37~200 EM303B-220~400...
  • Page 26 User Manual EM303B General Purpose Inverter EM303B-0R7~015 EM303B-018~400 Braking Resistor Braking Resistor( Optional (Optional) Braking Unit( Optional Figure 3-4 Standard Wiring of Main Circuit 3.2.5 Wiring Main Circuit on Input Side Installing a Circuit Breaker Always install an air circuit breaker (MCCB) between the power supply and input terminals.
  • Page 27 User Manual EM303B General Purpose Inverter  Start/stop of the inverter can be controlled by the electromagnetic contactor on input side. Inverter may break down if the electromagnetic contactor is on and off frequently. The operation interval between start and stop of the inverter shall ≥ 30 minutes.
  • Page 28 User Manual EM303B General Purpose Inverter 3.2.6 Wiring the Output Side of Main Circuit Connecting the Inverter to Motor  Connect inverter output terminals U, V, and W to motor input terminals U, V and W.  Confirm that the motor forwards with the Forward Command. Switch any 2 of the inverter output terminals U, V, or W to each other and reconnect if the motor reverses.
  • Page 29 User Manual EM303B General Purpose Inverter Countermeasures Against Inductive Interference As stated previously, except installing a noise filter, all output cables can be routed through a grounded metal pipe to prevent inductive interference on the output side. The distance between output cables and signal line should＞30cm, and the inductive interference will be reduced considerably, as shown in Figure 3-9.
  • Page 30 User Manual EM303B General Purpose Inverter 3.2.7 Main Circuit Cable and Terminal Screw Size See Table 3-3 for the specifications of main circuit cable and terminal screw. Table 3-3 Main Circuit Cable and Terminal Screw Specifications Tightening Cable Terminal Cable Model No.

  • Page 31: Wiring Control Circuit Terminals

    3.3 Wiring Control Circuit Terminals 3.3.1 Control Circuit Terminals The control circuit terminals of EM303B are located on the control PCBA:  Analog input terminals: Voltage input signals VS and VF. Current input signals IS and IF.  Numeric input terminals: X1, X2, X3, X4, X5, X6, X7, PLC ...
  • Page 32 User Manual EM303B General Purpose Inverter 3.3.2 Function and Wiring of Control Circuit Terminals Function of control circuit terminals as shown in Table 3-4 Table 3-4 Function of Control Circuit Terminals Mode Terminal Terminal Name Terminal Function VS Analog voltage...
  • Page 33 Figure 3-14 Wiring of Terminals IS and IF 3.3.4 Wiring Multi-function Input Terminal The multi-function input terminals of EM303B adopt full bridge rectifier circuit. Terminal PLC is the common terminal of X1~X7. The current passed through the PLC terminal can be forward (NPN Mode) or reverse (PNP mode), so that it is flexible to connect terminals X1-X7 to external devices.
  • Page 34 User Manual EM303B General Purpose Inverter 3.3.4.1 Dry contact wiring mode +24V EM303B +3.3V X1~X7 Figure 3-15-a Wiring with 24V Internal Power Supply +24V EM303B +3.3V - DC X1~X7 Figure 3-15-b Wiring with External Power Supply 3.3.4.2 NPN and PNP mode A.
  • Page 35 User Manual EM303B General Purpose Inverter C. See Figure 3-16-c for NPN mode with external power supply (Please note that disconnect terminal PLC from terminal 24V) External Controller EM303B +24V +3.3V +3.3V Grounding Shield Cable Figure 3-16-c NPN Mode with External Power Supply D.
  • Page 36 User Manual EM303B General Purpose Inverter +24V EM303B +3.3V Y1.Y2 Relay Figure 3-17-b Multi-function Terminal with External Power Supply Remarks: If the multi-function output terminal is powered by external supply, then the multi-function input terminal should be applied with the same supply, to avoid short circuit when input terminal is set as PNP mode.
  • Page 37 It shall be the best to take 0.5~1mm2 cable as the control circuit cable. There are two types of control circuit wiring terminals for EM303B: clamp terminal and barrier terminal, please install them with a PH0 cross head screwdriver with a tightening torque of 0.5N.m.
  • Page 38 User Manual EM303B General Purpose Inverter 3.3.11 Standard Control Circuit Wiring See Figure 3-21 for standard control circuit wiring of EM303B. External External Braking Unit Braking Resistor ≥90kW: MCCB With Built-in DC Reactor EM303B 3-phase Ground Power Supply Ground Multi-function...
  • Page 39 EM303B General Purpose Inverter 3.4 Extending Keypad Wire Please disassemble the keypad of EM303B as per the method shown in Figure 2-3, connect to an extension wire, assemble the keypad in a proper place, and then take it as a control panel.

  • Page 40: Wiring Check

    User Manual EM303B General Purpose Inverter Figure 3-23Keypad Window Cover Fold all Four Flanges to Lock the Cover Figure 3-24Assemble Keypad Window Cover 3.5 Wiring Check Perform the following checks after wiring has been completed:  If wiring is correct.

  • Page 41: Keypad Operation

    EM303B General Purpose Inverter 4 Keypad Operation 4.1 Type and Function of Keypad EM303B keypad consists of 5-bit LED display, operation buttons and analog potentiometer. As shown in Figure 4-1. EM303B can perform function setting, status monitoring, fault monitoring, start/stop control, and jog operation with the help of keypad.

  • Page 42: O Peration M Ode

    Regulate speed as per input analog value. Potentiometer 4.2 LED Keypad Operation Mode 6 keypad operation modes of EM303B: function setting, parameter copy, operation monitoring, fault monitoring, jog running, and start/stop. Keypad operation modes are as shown in Table 4-2.
  • Page 43 User Manual EM303B General Purpose Inverter 4.2.1 Main Menu Selection 3 main menu operation options: Function setting, operation monitoring, and fault monitoring. Function setting menu F0＿＿ ＿ , F1＿ ＿ ＿ , F2＿ ＿ ＿ , F3＿ ＿ ＿ , F4 ＿...
  • Page 44 User Manual EM303B General Purpose Inverter Editing Parameter  Follow the viewing procedures to enter the function code first, and then edit the parameter as per the procedures shown in Figure 4-5.  No matter it is in function setting status or operation status, after entering parameter editing status, LSB(on the right) flashing refers to that editing the parameter is permitted.
  • Page 45 User Manual EM303B General Purpose Inverter DATA ENTER DATA ENTER Flashing DATA ENTER Flashing Flashing Flashing Quickly DATA ENTER 闪烁 Flashing Flashing Flashing Quickly Figure 4-6 Procedures of Saving and Resetting Parameter Saving Parameters of Relevant Function Code Because there are correlations between some parameters, the relevant parameters will be edited and saved when corresponding function code has been edited and saved.
  • Page 46 User Manual EM303B General Purpose Inverter 5. Permission of Motor Forward/Reverse F0-24=0 Reverse permitted Motor’s running direction is set by F0-08, or controlled by terminal F/R. F0-24=1 Reverse prohibited Motor can only run in one direction. F0-08 parameters are disabled, and terminal F/R is off.
  • Page 47 User Manual EM303B General Purpose Inverter 4.2.7 Fault Monitoring When fault occurs, inverter will enter fault monitoring status (The shared fault code can be viewed by FE-20~ FE-22.) See Table 4-3 for LED displays. Table 4-3 Fault Status Monitoring Data...
  • Page 48 User Manual EM303B General Purpose Inverter DATA ENTER Flashing DATA DATA ENTER ENTER DATA DATA ENTER ENTER DATA DATA ENTER ENTER Figure 4-8 Procedures for Viewing Fault Monitoring Code 4.2.8 Multi-functional Button ＋／－ When F0-21=0, inverter runs as per setting jog frequency when pressing , and will stop ＋／－...

  • Page 49: Trial Operation

    User Manual EM303B General Purpose Inverter 5 Trial Operation 5.1 Trial Operation Procedures Table 5-1 Procedures of Trial Operation Procedure Working Scope Check inverter’s rated power, and install the inverter as per the requirements Installation stated in Chapter 2. Wiring the Inverter Wiring as per the requirements stated in Chapter 3.
  • Page 50 Input DC current to the running motor to generate brake torque before start-up DC Brake or at stop, it makes the motor stop quickly. Special Terminal EM303B provides multiple programmable input/output terminals which can Control connect external controller to satisfy various applications. 5.2 Trial Operation Precautions 5.2.1 Turningon the Power...
  • Page 51 User Manual EM303B General Purpose Inverter  Setting Reference Frequency The default of inverter reference frequency is keypad VP potentiometer regulation. Before trial operation, please confirm the setting frequency of F0-00, and set the expected reference input frequency through VP potentiometer.

  • Page 52: Parameter Table

    6 Parameter Table 6.1 Format of Parameter Tables 17 groups of parameter of EM303B: F0, F1, F2, F3, F4, F5, F6, F7, F8, F9, FA, Fb, FC, Fd, FE, C0, and E0, 32 items in each group. F0~FE are function setting parameters which consist of two sections.
  • Page 53 User Manual EM303B General Purpose Inverter Function Range Unit Default Type 0: V/F open loop Control 1: Not used 〇 F0-02 Drive Control Mode 2: SVC0 3: SVC1 Reference Input Control 0: Speed input 〇 F0-03 Mode 1: Torque input(F0-02=3 ) 0: Keypad 〇...
  • Page 54 User Manual EM303B General Purpose Inverter Function Range Unit Default Type 0: Automatic torque boost 1~10: Fixed torque boost curve 11~20: Oil pump motor boost curve 21~30: Synchronous motor boost ● F0-15 Torque Boost curve 31~34: Blower/water pump boost curve...
  • Page 55 User Manual EM303B General Purpose Inverter 6.2.2 F1 Group: Motor Parameters Function Range Unit Default Type S/N 0: AC induction motor 〇 F1-00 Motor Type 1: Not used 〇 F1-01 Motor Rated Power 0.40~480.00 XXXX 〇 F1-02 Motor Rated Voltage 60~660 〇...
  • Page 56 User Manual EM303B General Purpose Inverter Function Range Unit Default Type S/N ● F1-25 Analog Input Gain K4 0.00~600.00 0.00 ● F1-26 Analog Input Gain K5 0.00~600.00 0.00 ● F1-27 Analog Input Gain K6 0.00~600.00 0.00 ● F1-28 Analog Input Gain K7 0.00~600.00...
  • Page 57 User Manual EM303B General Purpose Inverter Function Range Unit Default Type S/N ● F2-26 M1Output Upper Limit 0.00～100.00 100.00 ● F2-27 M1 Output Gain 0.00～300.00 95.00 F2-28 Not used ~F2-31 Table 6-1 Functions of Numeric Multi-function Input Terminals Function Function...
  • Page 58 User Manual EM303B General Purpose Inverter Table 6-2 Functions of Numeric Multi-function Output Terminals Function Function 0 Inverter Runs(Enabled at Running) 17 Overload Alarming Output 1 Frequency Reach Range FAR(Enabled at running) 18 Overvoltage Stall 2 Output Frequency Detection Range FDT1(Enabled at running)
  • Page 59 User Manual EM303B General Purpose Inverter 6.2.4 F3 Group: Preset Speed Operation Parameters Function Range Unit Default Type S/N ● F3-00 Preset Speed 1 0.00～Fmax/0.0～Fmax 0.00 ● F3-01 Preset Speed 2 0.00～Fmax/0.0～Fmax 5.00 ● F3-02 Preset Speed 3 0.00～Fmax/0.0～Fmax 10.00 ●...
  • Page 60 User Manual EM303B General Purpose Inverter Function Range Unit Default Type S/N 0: No Copy 1: Upload Parameter (From 〇 F3-31 Parameter Copy Inverter to Keypad) 2:Download Parameter (From Keypad to Inverter) 6.2.5 F4 Group: General Parameters of PID Function...
  • Page 61 User Manual EM303B General Purpose Inverter Function Range Unit Default Type S/N Menu Display 00000001 ● F4-14 Control 2 0: No Display, 1: Display, *: Not used Iq E-Slip E-Speed Monitoring Reference ● 11111111 Options F4-15 0: Absolute Value, 1: +/-,*: Not used LCD Language 〇...
  • Page 62 User Manual EM303B General Purpose Inverter 6.2.6 F5 Group: General Parameters of Vector Control Function Range Unit Default Type S/N ● F5-00 Speed Proportional Gain ASR_P1 0.00～100.00 15.00 0.00～30.00 0.00: No ● F5-01 Speed Integral Time ASR_Ti1 0.50 integration ●...
  • Page 63 User Manual EM303B General Purpose Inverter Regulation Function Range Unit Default Type S/N Integral Time of VVF Excitation ● F5-21 0.00～600.00 0.00 Current Regulation 0: Positive/Negative Torque 〇 F5-22 Positive/Negative Torque Control Permitted 1: Negative Torque Prohibited Positive/Negative Torque 〇...
  • Page 64 User Manual EM303B General Purpose Inverter C0-11 × C0-12 Output Current Percentage 0.00～300.00 C0-13 Effective Output Current Value 0.0～3000.0 × Function Range Unit Default Type × C0-14 Output Voltage Percentage 0.00～200.00 × C0-15 Effective Output Voltage Value 0.0～660.0 × C0-16 DC Bus Voltage 0～1200...
  • Page 65 User Manual EM303B General Purpose Inverter OlP: Output phase loss EHT: External fault EEd: Inverter EEPROM failure EEU: :Keypad EEPROM failure StP: Autotuning cancelled SFE: Autotuning coast-to-stop SrE: Stator resistance error SIE:Idling current error EST: PID feedback loss/SPIcommunication fault/SCIfault InP: Internal fault ×...

  • Page 66: P Arameters

    User Manual EM303B General Purpose Inverter UL：Overvoltage stall Cl：Overcurrent stall × E0-23 Working Time at Fault HOUR × E0-24 The 3 Most Recent Fault Fault trips × E0-25 Output Frequency at Fault XX.XX/XX.X 0.00 E0-26 Output Current at Fault XXX.X ×...
  • Page 67 User Manual EM303B General Purpose Inverter Hundreds place: Saving options at power failure in program operation 0: Not Saved1: Saved Preset Program Operation 〇 F6-02 Section 2 Preset Program Operation 〇 F6-03 Section 3 Function Range Unit Default Type S/N Preset Program Operation 〇...
  • Page 68 User Manual EM303B General Purpose Inverter Upper Limit Frequency of Lower Limit Frequency of ● 219 F6-27 40.00 Wobbulation Wobbulation～Fmax Lower Limit Frequency of 0.00/0.0～Upper Limit Frequency of ● 220 F6-28 20.00 Wobbulation Wobbulation 0.00/0.0～(Upper Limit Frequency of Jump Frequency of ●...
  • Page 69 User Manual EM303B General Purpose Inverter ● F7-14 Jog M1 Output Lower Limit 0.00～100.00 0.00 ● F7-15 Jog M1 Output Upper Limit 0.00～100.00 100.00 ● F7-16 Jog M1 Output Gain 0.00～300.00 95.00 F7-17 ～ ～ Not Used F7-19 Function Range Unit Default Type S/N ●...
  • Page 70 User Manual EM303B General Purpose Inverter 1: Input / output bias 1 2: Input / output bias 2 Tens place:VF voltage bias options 0: Input / output bias 0 1: Input / output bias 1 2: Input / output bias 2...
  • Page 71 User Manual EM303B General Purpose Inverter ● F8-27 Output Bias 2_3 0.00～100.00,100.00=Fmax 100.00 ● F8-28 Input Bias 2_0 0.00~ Input Bias 2_1 0.50 ● F8-29 Input Bias 2_1 Input Bias 2_0~ Input Bias 2_2 25.00 ● F8-30 Input Bias 2_2 Input Bias 2_1~ Input Bias 2_3 75.00...
  • Page 72 User Manual EM303B General Purpose Inverter 4: Stepping Mode 2 5: Stepping Mode 3 6: Stepping Mode 4 7: Stepping Mode 5 0: Auxiliary numeric frequency 1: VP 2: VS 3: IS 4: Not Used Auxiliary Speed Setting 5: K3*VS+K4*IS 〇...
  • Page 73 User Manual EM303B General Purpose Inverter 3: IS* PID output 4: IF* PID output 5: Auxiliary frequency* PID output Frequency of Zero Speed 〇 0.00～50.00/0.0～50.0 Hz 0.00 F9-09 Detection Function Range Unit Default Type S/N Zero Speed Detection 〇 0.00～600.00 1.00...
  • Page 74 User Manual EM303B General Purpose Inverter Gain 0: Maximum frequency Speed Search Mode of 〇 1: Stop frequency F9-28 Software 2: Setting frequency F9-29 Not Used Function Range Unit Default Type S/N Undervoltage Detection 〇 0.00～100.00（Udc_e） % 65.18 F9-30 Scale Undervoltage Detection 〇...
  • Page 75 User Manual EM303B General Purpose Inverter Motor 2 Ω 〇 FA-24 0.01～60.000 XXXX Rotator Resistance R2 Motor 2 Stator& Rotor 〇 FA-25 0.1～3000.0 mH XXXX Leakage Inductance Ls Motor 2 Stator& Rotor Mutual 〇 FA-26 0.1～3000.0 mH XXXX Inductance Lm...
  • Page 76 User Manual EM303B General Purpose Inverter Range Energy Saving Delay 〇 FC-13 0.01～60.00 0.50 Start Time Energy Saving Permitted 〇 FC-14 60.00～100.00 80.00 Range ● FC-15 Output Voltage 0.00～100.00 100.00 〇 FC-16 Brake Duty Ratio 5.00～100.00 80.00 Function Range Unit Default Type S/N Over-modulation ●...
  • Page 77 User Manual EM303B General Purpose Inverter Ol IlP SlU SOU SOC HOU HOC 〇 FC-27 Fault Retry Options 11111111 0: Fault retry permitted 1: Fault retry prohibited Ol IlP SlU SOU SOC 〇 FC-28 Disabled Trips 1 00000000 0: Enabled , 1: Disabled , *：Not Used...
  • Page 78 User Manual EM303B General Purpose Inverter Fd-19 Fd-20 CPUB Software Version X.XX X.XX Fd-21 Inverter Rated Power 0.40~480.00 XXXX Fd-22 Inverter Rated Voltage 60~660 Fd-23 Inverter Rated Current 0.1~1500.0 XXXX Fd-24 Inverter Running Time User monitoring HOUR XXXX Fd-25 Inverter Running Time...
  • Page 79 User Manual EM303B General Purpose Inverter 0：VF is on at high level input 1：VF is on at low level input Thousands place: Input terminal IF 0: IF is on at high level input 1: IF is onat low level input...
  • Page 80 User Manual EM303B General Purpose Inverter 1：SOFT Soft-start fault 0：SCI Fault SCI/SPI/PID Faults 1：SPI Fault FE-22 Display 2：PID Feedback loss fault FE-23 Not Used FE-31...

  • Page 81: Parameter Description

    User Manual EM303B General Purpose Inverter 8 Parameter Description Section 1 General Parameters 8.1 F0 Group: General Parameters Function Range Unit Default Type F0-00 Speed Reference Input Frequency: 0.00～Fmax/0.0～Fmax 0.00/0 Monitoring Speed: 0～F*Customer defined 0.0/0 Torque Reference Input scaling F0-01 0.00...
  • Page 82 User Manual EM303B General Purpose Inverter same time. A regular AC induction motor can be turned into an AC variable speed motor or AC torque motor in this drive mode. It is a genuine sensorless vector control. Remarks: This mode is applicable to torque / speed control.
  • Page 83 User Manual EM303B General Purpose Inverter F0-04=0 Keypad Control Mode STOP Control start/stop of inverter through RESET buttons on the keypad. When there is no fault, ＋／－ press to enter jog status, and press ＋／－ enter running status. When the green LED indicator on...
  • Page 84 User Manual EM303B General Purpose Inverter EM303B Inverter Forward/Reverse Output Frequency Time (b)F0-20=0, F0-05=0 (a)F0-05=0 2-wire sequence Forward/Reverse running sequence Forward EM303B Inverter Reverse Output Frequency Time (c)F0-05=1 2-wire sequence (d)F0-20=0, F0-05=1 Forward/Reverse running sequence Figure 7-2 2-Wire Sequence When F0-05= 0 or 1, even if terminal RUN is ON, inverter can be stopped by...
  • Page 85 （d）F0-20=0, F0-05=3 （c）F0-05=3 3-wire sequence Forward/Reverse running sequence Figure 7-3 3-Wire Sequence Please use the buttons and switches correctly by following the mode illustrated in the above diagrams of EM303B 3-wire sequences, otherwise, malfunctions may occur. Function Range Unit Default Type...
  • Page 86 User Manual EM303B General Purpose Inverter F0-06 Forselecting the source of regular speed setting signal. F0-06=0 Primary numeric frequency setting mode is defined by the value of F0-07. F0-06=1 Setting frequency is set by VP keypad potentiometer. F0-06=2 Setting frequency is set by the voltage of analog terminal VS.
  • Page 87 User Manual EM303B General Purpose Inverter Output Output Frequency(Hz) Frequency(Hz) Fmax Fmax Time(S) Time(S) （b）Deceleration Time 1 （a）Acceleration Time 1 Figure 7-4 Acceleration/Deceleration Time Function Range Unit Default Type ● Jog Numeric Frequency 0.00～Fmax 5.00 F0-11 ● Jog Acceleration Time 0.00～600.00...
  • Page 88 User Manual EM303B General Purpose Inverter 0kW～9kW: carrier frequency range 1.000～16.000 kHz 11kW～37kW: carrier frequency range 1.000～8.000 kHz 45kW～110kW: carrier frequency range 1.000～4.000 kHz 132kW～400kW: carrier frequency range 1.000～3.000 kHz Function Range Unit Default Type ● F0-15 Torque Boost 31 32...
  • Page 89 User Manual EM303B General Purpose Inverter F0-19=0 Start as per setting mode: Zero Power Supply speed start, or DC brake first, and then zero speed start. F0-19=1 Speed search start: Before Motor Speed inverter starts, the motor may be rotating.
  • Page 90 User Manual EM303B General Purpose Inverter F0-21=0 on keypad is for jog running function. ＋／－ F0-21=1 on keypad is for positive/negative input switching function, i.e. when the ＋／－ settings are positive speed, positive PID, and positive torque, is for switching to ＋／－...
  • Page 91 User Manual EM303B General Purpose Inverter 1. When reverse is permitted, inverter will judge present running direction based on the setting of F0-08 and the status of terminal F/R. If F0-08=1 and terminal F/R is on, inverter runs forward. 2. If the setting forward direction of inverter is not identical with the expected running direction of motor, switch any two of output cables (U, V, and W) of inverter or set F0-08=1.
  • Page 92 User Manual EM303B General Purpose Inverter F0-11, preset speed 1~15 (F3-00～F3-14), PID numeric setting F4-01, and numeric torque current F5-12. F0-29=2Parameter locked 1 Lock parameters except F0-29. Inverter will remain the setting before unlocked. Function Range Unit Default Type 0: Model G 〇...
  • Page 93  When slip compensation is enabled, autotune motor parameter first, so that the motor will obtain the optimum operation performance.  Parameter autotuning is only enabled when F0-04=0. EM303B supports ModBus protocol, RTU format, and single-master and multi-slave communication network with RS485 bus. Function...
  • Page 94 F0-07 or F9-06 to the slave inverter. F1-21 When the inverter is the slave, (the frequency sent by master inverter* F1-21) will be the setting numeric frequency of the slave inverter. Remarks: See Chapter 12 for EM303B ModBus communication protocol and examples. Function Range Unit Default Type ●...
  • Page 95 If the inverter is set as the master, the source of slave frequency sent by the master is chosen through F1-31. 8.3 F2 Group: Input/output Terminal Parameters The multi-function input terminals of EM303B are also called as numeric input terminals because of working in level or pulse mode. Function...
  • Page 96 User Manual EM303B General Purpose Inverter Multi-function Input Terminal 〇 F2-05 X6-FRS Multi-function Input Terminal 〇 F2-06 X7-RST 〇 F2-08 VS Input Function Defining See FE-04 for setting 〇 F2-09 IS Input Function Defining of switching analog 〇 function to numeric...
  • Page 97 User Manual EM303B General Purpose Inverter and stop when FJOG and RJOG are on simultaneously. See 7.1 for detail of Jog operation.  Reverse jog is disabled when reverse is prohibited. Xi=13 UP: Terminal controls numeric frequency, and the stepping frequency rises.
  • Page 98 User Manual EM303B General Purpose Inverter Xi=25 Switch input control mode to torque control mode When the terminal is on, the present control mode is switched to torque control mode. Its function is equivalent to F0-03=1. After the terminal is off, inverter returns the previous input control mode automatically.
  • Page 99 User Manual EM303B General Purpose Inverter terminal is on, then the function of PID regulator conducts positive/negative function switch. Its function is equivalent to adjusting parameters of F4-05. Xi=38~43 Not used Xi=44 Preset current limit terminal 1 Xi=45 Preset current limit terminal 2...
  • Page 100 User Manual EM303B General Purpose Inverter EM303B provides 3 programmable output terminals including 2 multi-function output terminals and 1 relay output terminal. There are 0～32 program codes. User can define output variables of terminals. 2 multi-function output terminals are in OC output mode. Output common port is connected to COM.
  • Page 101 User Manual EM303B General Purpose Inverter Function Description When inverter is running (Except in JOG running mode), if the output frequency increases to the value of F9-12 (FDT1 Output Frequency Increasing Threshold), the output terminal is on. If the Detection Range FDT1...
  • Page 102 F2-17 Analog Output Terminal M1 EM303B provides 2 programmable analog output terminals: M0 and M1 which can output 0～10V voltage signal or 0-20mA current signal by jump line selection. See Table 7-4 for analog outputs full scales and the description of F2-16~F2-27.
  • Page 103 User Manual EM303B General Purpose Inverter A in the formula below stands for 2 variables: 1, A=10V when the analog output is selected as voltage signal 2, A=20mA when the analog output is selected as current signal Table 7-4 Analog Outputs Full Scales...
  • Page 104 User Manual EM303B General Purpose Inverter DC Bus Calculate the percentage= (DC bus voltage / the Voltage at 1.5 19 DC Bus Voltage DC bus voltage at 1.5 times rated input Times Rated voltage)*100%*A as the analog output Input Voltage...
  • Page 105 0.00～Fmax/0.0～Fmax 50.00 Through preset speed control terminals and 15 preset frequency commands,EM303B can provide 16 preset speeds by combining keypad numeric setting mode and analog setting mode. Furthermore, it can be adjusted at any time through repeated addition analog input.
  • Page 106 Fmax down to 0Hz. Both of them are irrelevant to forward/reverse. EM303B provides 4 kinds of acceleration times and 4 kinds of deceleration times. Each of them is set by independent parameter. There are 2 multi-function input terminals which can be set as acceleration/deceleration time terminal 1 and 2.
  • Page 107 User Manual EM303B General Purpose Inverter immediately. See Table 7-5 for the programming mode of acceleration/deceleration time terminal 1 and 2. Table 7-5 Programming Mode of Acceleration/Deceleration Time Terminals Acceleration/Deceleration Acceleration/Deceleration Acceleration Deceleration Time Terminal 1 Time Terminal 2 Time/No.
  • Page 108 User Manual EM303B General Purpose Inverter Function Range Unit Default Type 〇 F3-24 DC Brake Start Frequency at Stop 0.10～60.00/0.1～60.0 2.00 0.00～30.00, 〇 F3-25 DC Brake Proportion at Stop 100.00 30.01～250.00 0~15 kW 0.40 15~110 kW 0.70 〇 F3-26 DC Brake Waiting Time at Stop 0.10～30.00...
  • Page 109 User Manual EM303B General Purpose Inverter Output Frequency(Hz) Output Frequency(Hz) Time(S) Motor Speed DC Brake Start Frequency Time(S) DC Brake Waiting Time Time（S） Brake Voltage/Current Brake Time Time(S) Figure 7-10 DC Brake Process at Start Figure 7-11 DC Brake Process at Stop...
  • Page 110 User Manual EM303B General Purpose Inverter Frequency Stop Lower Limit Frequency Terminal Fucntion Enable Enable Figure 7-12 Lower Limit Frequency Control Function Range Unit Default Type ● F3-30 Open Loop Slip Compensation 0.00～200.00 100.00 0: No Copy 1: Upload Parameter (From 〇...
  • Page 111 Figure 7-13 Function of PID Control EM303B PID Control Logic Control logic of internal process PID of EM303B is as shown in Figure 7-14. Through PID close-loop control, an inverse feedback control system is formed between EM303B and control object.
  • Page 112 User Manual EM303B General Purpose Inverter Set F0-03=0 and F0-26=2, i.e. the inverter can be set as speed process PID control mode. The control object is the speed of motor. Function Range Unit Default Type 0: Numeric PID Setting 1: VS...
  • Page 113 User Manual EM303B General Purpose Inverter Ones place: PID Upper Limit Options Positive/Negative 0: Positive Options of PID 1: Negative ● F4-04 Upper/Lower Limit Tens place: PID Lower Limit Options 0: Positive 1: Negative F4-03 determines the maximum scale of PID setting signal and feedback signal.
  • Page 114 User Manual EM303B General Purpose Inverter Function Range Unit Default Type ● F4-10 Integration Function Scale 0.00~100.00 100.00 F4-10 Integration function scale: When error between PID setting value and feedback is greater than the setting value, there is no integral operation.
  • Page 115 User Manual EM303B General Purpose Inverter Bit setting value=1 Monitoring frequency shows positive/negative value when motor forwards/ reverses. F4-15 is bit operation, only set corresponding bit of monitoring frequency = 0/1. For instance: when motor forwards/reverses, the monitoring output frequency and estimated...

  • Page 116: C Ontrol

    User Manual EM303B General Purpose Inverter Function Range Unit Default Type 〇 F4-30 PID Feedback Loss Detection Value 0.0~PID maximum scale 〇 F4-31 PID Feedback Loss Detection Time 0.0~6000.0 6000.0 F4-30 and F4-31 are for judging whether PID feedback is lost or not.
  • Page 117 Torque control (SVC1) EM303B could conduct torque control in SVC1. When EM303B runs in SVC1 mode, torque control function refers to the occasions when the excitation current of motor is in current closed-loop, the actual motor speed can be estimated in real time through the internal motor magnetic flux and the speed estimation function of inverter, thus motor torque current can be actively controlled.
  • Page 118 User Manual EM303B General Purpose Inverter current in power-driven and brake status respectively. See Figure 7-18. 1. If the setting torque current and rotation of motor are in the same direction, the torque current is the power torque current. 2. If the setting torque current and rotation of motor are opposite, the torque current is the brake torque current.
  • Page 119 User Manual EM303B General Purpose Inverter In torque control mode, the inverter controls the torque current of motor, so the motor speed is beyond control. If the input torque command does not match the load, the motor may accelerate or accelerate in opposite direction continuously. F5-14 is to limit the motor speed threshold in torque control mode.
  • Page 120 User Manual EM303B General Purpose Inverter F5-22=1 Negative torque prohibited. F5-13 and F5-23 will be blocked. Output Torque F5-22=0 Negative torque permitted. F5-13 defines the torque output direction. Time F5-23 is for setting the transit time at zero output torque for the inverter in the process of switching positive and negative torque.

  • Page 121: F Unction

    50.00%～250.00%. 8.7 C0 Group: Parameters of Monitoring Function When EM303B is running, operation parameters can be acquired by checking monitoring parameters in Group C0. All monitoring parameters are read only. When inverter is running, F4-20 defines the default of displayed monitoring parameter.
  • Page 122 User Manual EM303B General Purpose Inverter of F6-00. C0-21 Output Power Present output power C0-22 PID Input PID setting C0-23 PID Calculation Feedback PID feedback Present torque current input setting C0-24 Torque Current Input Iq* value C0-25 Torque Current Feedback Iq...
  • Page 123 User Manual EM303B General Purpose Inverter Speed Program Operation Mode Selection F6-00 ones place=0 Monocycle. Inverter will stop after running as per the time and operation of 7 preset speeds. F6-00 ones place=1 Run as per Preset Speed 7 after monocycle Inverter will run as per the preset speed 7 after running as per the time and operation of 7 preset speeds.
  • Page 124 User Manual EM303B General Purpose Inverter Preset Program Hundreds place: Saving options at 〇 F6-06 Operation Section 6 power failure in program operation 0: Not Saved Preset Program 〇 F6-07 1: Saved Operation Section 7 In program operation, the direction and acceleration/deceleration time of each preset section can be set separately.
  • Page 125 User Manual EM303B General Purpose Inverter status and runs as per the program operation status at power failure. When selecting saving mode at power failure in program operation, please set F6-01 hundreds place only, and do not set the hundreds places of F6-02~ F6-07.
  • Page 126 User Manual EM303B General Purpose Inverter When setting skip frequency setting is enabled, if setting frequency is within skip frequency range, and when frequency setting rises, the output frequency will rise to= Skip frequency + Skip frequency range. When frequency setting drops, the output frequency will drop to= Skip frequency - Skip frequency range.In the process of acceleration /...
  • Page 127 User Manual EM303B General Purpose Inverter Wobbulation of Wobbulation - Lower Limit Frequency of Wobbulation)/2 Rising Time of ● F6-30 0.00～600.00 S/min 15.00 Wobbulation Dropping Time of ● F6-31 0.00～600.00 S/min 5.00 Wobbulation Wobbulation is applied to the industries like textile and chemical fiber and the applications which require traversing and winding function.
  • Page 128 User Manual EM303B General Purpose Inverter upper limit frequency. The rising time of wobbulation is the acceleration time of this process. F6-31 Dropping time of wobbulation When operation frequency reached the upper limit frequency and after jump frequency drops, according to the rule of wobbulation operation, operation frequency will decelerate to the lower limit frequency.
  • Page 129 User Manual EM303B General Purpose Inverter Overload Pre-alarming 8.9.1 Overload Pre-alarming Control Function Range Unit Default Type Ones place： Overload pre-alarm detection 0: Detect all the time Overload Pre-Alarm 1: Detect at constant speed 〇 F7-00 Control Tens place: inverter status after...
  • Page 130 User Manual EM303B General Purpose Inverter Output Current Overload Detection Scale Overload Detection Time Time Overload Detection Start Enabled Time Inverter Status Delay Stop Time Stopping Process Stop TIme Figure 7-23 Overload Pre-alarm Control Logic 8.9.2 Analog Output Scale Function...
  • Page 131 User Manual EM303B General Purpose Inverter rcentage of analog input terminal. t.ion scale (F7-02) continuously for certain time.his monotonic decreasing is active, the actual disabled point of ADT1=Analog ADT1 (F7-05)- Analog ADT1 Hysteresis(F7-06), i.e. if input voltage of analog input terminal VF=2V (10V=Analog ADT1 (og input terminal VF>2.5V (...
  • Page 132 User Manual EM303B General Purpose Inverter Carrier frequency is set by F0-14. See 7.1 for the description of carrier frequency. Carrier frequency can reduce the electromagnetic noise of motor on premise of not increasing the electric loss of inverter. There are 2 automatic PMW modes for EM-series inverters which can be selected based on the motor power and mechanic devices.
  • Page 133 User Manual EM303B General Purpose Inverter 8.9.9 Zero Frequency Parameter Function Range Unit Default Type 〇 F7-31 Zero Frequency Brake Current 100.00~500.00 100.00 If F5-27=0, F7-31 is to set zero speed holding torque. The setting value of F7-31 is the percentage of idling current.
  • Page 134 User Manual EM303B General Purpose Inverter Setting Frequency Setting Frequency Hz （Hz） Maximum Frequency Maximum Frequency 100.00% 100.00% 75.00% 75.00% 50.00% 50.00% 25.00% 25.00% VS/VF VS/VF 2.5V 7.5V 100.00% 0.00% 25.00% 50.00% 75.00% 100.00% Figure 7-25 Analog Voltage Input 0～10V Figure 7-26 Analog Voltage Input 2～10V...
  • Page 135 User Manual EM303B General Purpose Inverter Tens place:VF voltage bias options 0: Input / output bias 0 1: Input / output bias 1 2: Input / output bias 2 Hundreds place: IS current bias options 0: Input / output bias 0...
  • Page 136 User Manual EM303B General Purpose Inverter The analog input can be set continuously in the full scale input range of 0.0～100.0% as 0input can be set continuously in For instance: 1. See Table 7-6 for setting parameter Table 7-6 Setting Value...
  • Page 137 User Manual EM303B General Purpose Inverter Setting Frequency Hz Setting Frequency Hz FMAX FMAX F8-08 F8-08 100% 100% F8-09 F8-09 F8-10 F8-10 F8-11 Analog Setting F8-11 Analog Setting 7.5V 5.2V 0.00% 0.00% 0.00% 100% 0.00% 100% F8-12 F8-13 F8-14 F8-15...
  • Page 138 User Manual EM303B General Purpose Inverter F9-02 ones place=0 After numeric reference input changed, it can only be saved by pressing DATA ENTER F9-02 ones place=1 After the setting value of primacy numeric frequency (F0-07) changed, DATA it will be saved automaticallywithoutpressing...
  • Page 139 User Manual EM303B General Purpose Inverter If auxiliary speed + primary speed > the upper limit frequency, inverter will output as per the upper limit frequency.  F9-03 ones place =1/2 can be switched to the status of F9-03 tens place =0 through multi-function terminal.
  • Page 140 User Manual EM303B General Purpose Inverter F9-04=1 Wobbulation Mode If F0-26 is selected as special speed setting mode, inverter will run in wobbulation mode. See 7.8 for wobbulation running mode. F9-04=2 Stepping Mode 0 The starting frequency is F0-07 primary numeric frequency setting. When terminal UP/DOWN is on, the starting frequency will rise/drop as per the present effective acceleration/deceleration time.
  • Page 141 User Manual EM303B General Purpose Inverter 8.11.5 Auxiliary Speed Setting Mode Function Range Unit Default Type 0: Auxiliary numeric frequency 1: VP 2: VS 3: IS 4: Not Used Auxiliary Speed 5: K3*VS+K4*IS 〇 F9-05 Setting Mode 6: K3*VS+K5*VF 7: K4*IS+K6*IF...
  • Page 142 User Manual EM303B General Purpose Inverter 8.11.7 Output Frequency Range Function Range Unit Default Type 〇 Frequency Reach Signal FAR 0.00～50.00/0.0～50.0 2.50 F9-11 Output Frequency(Hz) multi-function output relay output=1(Frequency Reach Range FAR), and if∣the output frequency of inverter- input setting frequency ∣ <the setting value of...
  • Page 143 User Manual EM303B General Purpose Inverter Power Failure Control at Power-on 8.11.9 Non-Stop Control at Instantaneous Power Failure Function Range Unit Default Type Non-Stop Control Options at 0: Disabled 〇 F9-17 Instantaneous Power Failure 1: Enabled Control Voltage of Non-Stop at ●...
  • Page 144 User Manual EM303B General Purpose Inverter STOP monocycle running time is up, pressing , external terminal stop, coast-to-stop command, RESET and fault, the terminal shall be off first and on again later, and then the inverter can be started. F9-25=1 Inverter will run directly.
  • Page 145 User Manual EM303B General Purpose Inverter Undervoltage Detection 8.11.14 Undervoltage Detection Scale Function Range Unit Default Type 〇 F9-30 Undervoltage Detection Scale 0.00～100.00（Udc_e） % 65.18 When the DC bus of inverter<undervotlage detection scale, system will trip undervoltage. The fault of undervoltage: 537VDC*65.18%=350VDC...
  • Page 146 User Manual EM303B General Purpose Inverter Motor 2 Parameter Setting 8.12.3 Basic Parameters of Motor 2 Function Range Unit Default Type 〇 FA-14 Motor 2 Rated Power 0.40～480.00 kW XXXX 〇 FA-15 Motor 2 Rated Voltage 60～660 〇 FA-16 Motor 2 Rated Current 0.1～1500.0...
  • Page 147 User Manual EM303B General Purpose Inverter deceleration, t1 = the setting value of FC-01* Deceleration time, t2= the setting value of FC-02* Deceleration time. Frequency Linear Mode S Curve Mode Acceleration Time Deceleration Time Figure 7-23 Acceleration/Deceleration Control 8.13.2 Fan Control...
  • Page 148 User Manual EM303B General Purpose Inverter 〇 FC-21 Overcurrent Stall Proportion Gain IKp 0.00～100.00 0.10 〇 FC-31 Integral Time of Overcurrent Stall 0.00～300.00 20.00 Current limit control FC-07 =0 Disabled FC-07 =1 Not used FC-07 =2 Enabled In the process of operation, when the current of motor which is on load reaches overcurrent...
  • Page 149 User Manual EM303B General Purpose Inverter 8.13.8 Energy Saving Operation Function Range Unit Default Type Energy Saving 0: Energy saving operation disabled 〇 FC-10 Operation Options 1: Energy saving operation enabled Energy Saving 〇 FC-11 Running 10.00～600.00/10.0～600.0 20.00 Initial Frequency Energy Current 〇...
  • Page 150 User Manual EM303B General Purpose Inverter 8.13.9 Output Voltage Control Function Range Unit Default Type ● FC-15 Output Voltage 0.00～100.00 100.00 8.13.10 Adjusting Output Voltage To set parameters of FC-15 is to adjust the output voltage of inverter. If input voltage is 380VAC, and if FC-15 is set as 58.00, it refers that the motor (220V Input) can be applied.
  • Page 151 User Manual EM303B General Purpose Inverter FC-18 ones place=1 AVR enabled (Enabled all the time) If input voltage< rated input voltage of inverter, and output frequency> corresponding frequency to the voltage on V/F curve, inverter will output maximum voltage to make motor work at maximum capacity.
  • Page 152 User Manual EM303B General Purpose Inverter DC bus voltage Upper Limit of Overvoltage Stall Lower Limit of Overvoltage Stall Output Frequency Overvoltage Enabled Enabled Protection Time Figure 7-35 Overvoltage Stall Protection FC-19 tens place=0 Dynamic brake disabled Regardless how big the DC bus is, braking input power will not work.
  • Page 153 User Manual EM303B General Purpose Inverter FC-20 is for setting the upper limit of overvoltage protection. The default is 380*1.414*128%=687VDC. Users do not need to adjust the value on general conditions. FC-22 and FC-23 are the auto-regulation parameters of internal overvoltage protection.
  • Page 154 User Manual EM303B General Purpose Inverter inverter to restart from fault output stop to auto-reset. The range is 0.01～30.00 seconds and can be set continuously. FC-25 is for controlling the time for inverter to reset fault retry times. Fault occurs in running process.
  • Page 155 User Manual EM303B General Purpose Inverter protection and remains previous status. FC-28~ FC-20 are bit operation. Only the corresponding bit has to be set as 0 or 1. As shown in the table below. FC-28 Disabled Trips 1 Fault Code...
  • Page 156 =100.0%. Usually frequency base is the same as the rated frequency of motor. 1. If the slop of V/F curve is too big, overcurrent may occur. 2. EM303B takes the motor frequency as the frequency base. 100.00% voltage is motor rated voltage. Please make sure that the motor frequency and voltage setting are correct.
  • Page 157 User Manual EM303B General Purpose Inverter If settingFd-11≠0, the system will enter VF separation mode.After entering VF separation mode, please set F0-28=1, the parameters will be of VF separation mode. Remarks: When setting Fd-11=0 and F0-28=1, and pressing enter, the parameters will be reset to defaults.
  • Page 158 User Manual EM303B General Purpose Inverter Fd-31 CPUA Software Version X.XX X.XX Fd-20, F3-30, and Fd-31 are read only for the users. 8.15 FE Group: User Defined Terminal Function Parameters Input/Output Terminal Control Options 8.15.1 Programmable Input/Output Terminal Options Function...
  • Page 159 User Manual EM303B General Purpose Inverter 0: Analog signal input 1: Numeric signal input Thousands place: IF input signal options 0: Analog signal input 1: Numeric signal input FE-04 ones place=0 Analog voltage signal VS input FE-04 ones place =1 Utilized as multi-function input terminal...
  • Page 160 User Manual EM303B General Purpose Inverter Tens place: Y2 output logic options 0: Positive logic 1: Negative logic Hundreds place: R1 output logic options 0: Positive logic 1: Negative logic FE-06 and FE-07 set the output waveform of relay and multi-function terminal. For instance: If setting FE-07 ones place=0(Positive logic), FE-06 ones place selects pulse signal or voltage signal, as shown in Figure 7-36.
  • Page 161 User Manual EM303B General Purpose Inverter 〇 FE-09 Terminal Y1 Delay Time 0.0～600.0 〇 FE-10 Terminal Y1 Pulse Width 0.0～600.0 〇 FE-11 Terminal Y2 Delay Time 0.0～600.0 〇 FE-12 Terminal Y2 Pulse Width 0.0～600.0 〇 FE-13 Terminal R1 Delay Time 0.0～600.0...
  • Page 162 Generally, it is not easy for user to obtain the motor parameters that are needed for calculation in vector control mode such as stator resistance R1, rotor resistance R2, stator and rotor inductance Lm, stator and rotor leakage inductance Ls, idling excitation current I0. EM303B provides function of motor parameter autotuning. After the function start-up, inverter autotunes the relevant parameters of the motor connected and saves them to the EEPROM.

  • Page 163: Autotuning Procedure

    User Manual EM303B General Purpose Inverter F1-02: Motor rated voltage F1-03: Motor rated current F1-04: Motor rated frequency F1-05: Motor rated speed F1-06: Motor wiring method F1-07: Motor rated power factor Based on the rated power of the inverter, match inverter with an applicable Y-series motor, and the defaults of motor can meet most of needs.

  • Page 164: Troubleshooting

    When anything unexpected happens, the corresponding trip code and parameters will be displayed on the keypad, fault relay is on and fault output terminal is on, inverter output stops. When fault occurs, if the motor is running, it will coast to stop. See Table 9-1 for EM303B fault trips and troubleshooting.
  • Page 165 User Manual EM303B General Purpose Inverter Trip Trip Cause Corrective Action Code 1. Input power phase loss. 2. Wiring terminal of input 1. Check input power supply. Stable power is loose. 2. Tighten screws on input Undervoltage/SOFT 3. Input power voltage drops terminals.
  • Page 166 User Manual EM303B General Purpose Inverter Trip Trip Cause Corrective Action Code 1. Motor is not connected to Stator Resistance 1. Check connection between the output terminals of Error inverter and motor. inverter. 2. Motor is offloaded. 2. Motor is on load.
  • Page 167 User Manual EM303B General Purpose Inverter 10.2 Fault Analysis After power is on, due to improper function setting and incorrect wiring between inverter and external control terminals, motor cannot meet the expected working requirements. Fault analysis as described in this chapter can be taken as the reference to take as the corrective actions.
  • Page 168 User Manual EM303B General Purpose Inverter  If the setting acceleration time is too long, confirm its parameters. 10.2.4 Excessively Long Deceleration Time  When dynamic brake enabled  The brake resistance is too big. The dynamic brake power is too small, so the deceleration time is prolonged.
  • Page 169 User Manual EM303B General Purpose Inverter leakage current. Select a special leakage circuit breaker with a trigger current≥30mA, or a regular leakage circuit breaker with a trigger current≥200mA and the action time ≥0.1S. 10.2.8 Mechanical Vibration  The fixed frequency of mechanical system resonates with the carrier frequency of inverter.
  • Page 170 User Manual EM303B General Purpose Inverter 11 Maintenance and Inspection 11.1 Maintenance and Inspection Due to the service environmental changes such as temperature, humidity, smoke, frost, dust, or the factors as aging of inverter’s internal components, various failures of inverter may occur.
  • Page 171 User Manual EM303B General Purpose Inverter 11.4 Periodic Maintenance and Replacement of Parts In order to keep the inverter operating normally over a long period of time, periodic maintenance and replacement are required for the internal parts according to their service lives.
  • Page 172 User Manual EM303B General Purpose Inverter 12 Accessories 12.1 Keypad Extension Wire Optional keypad extension wires available in the table below, select based on real needs. Parameter Name Specifications Remarks Keypad Extension Wire EM303-3 m Keypad Extension Wire EM303-4 m...

  • Page 173: Braking Resistor

    Figure 11-1 Outlook and Installation Dimensions of Remote Control Case 12.3 Braking Resistor EM303B (0.75～15kW) with an integrated braking unit can be connected to braking resistor directly for quick stop. Please see Table 11-1 for selecting braking resistor for EM303B. Table 11-1 Braking Resistor Selection Motor Power...
  • Page 174 User Manual EM303B General Purpose Inverter 12.4 Braking Unit Separate BR100 braking unit is available for EM303B-018~400 which are without an integrated braking unit, power rang of BR100: 18.5～315kW. SINEE-make BR100 models are as shown in the following table. Minimum...
  • Page 175 User Manual EM303B General Purpose Inverter Table 11-3 Installation Dimensions of Chassis and Foundation Bolts Inverter Model No. H (mm) W(mm) D(mm) d(mm) EM303B-055～075 120mm EM303B-090 253mm EM303B-110～132 253mm EM303B-160～200 308mm EM303B-220～280 300mm EM303B-315～400 355mm Tighten the screws on the...
  • Page 176 Extended copper bars are for connecting input and output cables of inverter which are only available for EM303B-220～280 and EM303B-315～400. With the help of the copper bar, the wiring can be done externally. Please order the copper bars if needed, and users take all responsibilities of the assembly of the copper bar.

  • Page 177: Modbus Communication Protocol

    User Manual EM303B General Purpose Inverter 13 Modbus Communication Protocol 13.1 Application Scope  Applicable series: EM303B  Applicable network: Support Modbus protocol, RTU format, with single-master/multi-slave Communication network of RS485 bus. The typical RTU message frame format: Start Bit...
  • Page 178 User Manual EM303B General Purpose Inverter CRC parity(Low bytes go first) Slave responds Address of slave Inverter address ADU Item Byte No. Range Command code 0x03 Byte Length 2* Register number Register data 2* Register number CRC parity Remarks: Read maximum 8 function codes consecutively.
  • Page 179 User Manual EM303B General Purpose Inverter Command code 0x08: Circuit Diagnosis and Setting ADU Item Byte No. Range Master requests: Address of slave 0～127 Command code 0x08 Sub-function code 0x0000～0xFFFF Register data CRC parity Slave responds: Address of slave Inverter address...
  • Page 180 User Manual EM303B General Purpose Inverter 2006H. Name Address Description Control 40xx/70xx Refers to 12.6 description of control command Command Working 41xx Refers to 12.6 description of control command Status 13.5.4 CRC Parity Sending equipment calculates CRC parity value first, and then attaches it to the sending message.
  • Page 181 User Manual EM303B General Purpose Inverter else crc_value = crc_value>>1; return(crc_value); 12.5.5 Error Message Response Inverter will send an error message report when the master sends error data or inverter receives the error data due to the external interference. When Communication error occurs, slave combines the highest bit 1 of command code and error code as the response to the master.
  • Page 182 User Manual EM303B General Purpose Inverter Because F0-00is read only, inverter responds error message. Inverter responds data frame in hexadecimal format Command code is 86H in error message, the highest bit 1 of 06H. If error code detail is 11H, it means the parameter is read only.
  • Page 183 User Manual EM303B General Purpose Inverter 13.7 Example Read primary numeric frequency setting (F0-07) of Inverter No.01, return 50Hz. Transmitting Sequence Data Receiving Sequence Data Write F0-07=30.00Hz, the setting value of primary numeric frequency of Inverter No.01. (Recommended to Apply )
  • Page 184 User Manual EM303B General Purpose Inverter Data Receiving Sequence Data 13.8 Troubleshooting of common communication Set frequency by communication, the inverter trips EED fault. Cause:Frequency is changed by communication address 0007H of F0-07, as EEPROM is frequently stored for more than the erasure times allowed, it gets damaged.

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