ENC EDS300 Series - User Manual

Questions and Answers

C
Christine GouldAug 5, 2025
What to do if my ENC Inverter shows over current during accelerating?
- B
  brianwardAug 5, 2025
  If the ENC Inverter displays an overcurrent error during acceleration, it could be due to several reasons. The accelerating time might be too short, in which case you should prolong the accelerating time. It may also be due to an improper V/F curve, so adjust the V/F curve setting, adjust manual torque boost, or change to automatic torque boost. If the motor is restarting while rotating, set the speed checking restart function. Check the input power supply in case of low power source voltage. Finally, the inverter's power might be insufficient, so choose an inverter with higher power.
J
Jordan GrahamAug 10, 2025
What to do if my ENC Inverter shows over current during constant speed?
- J
  Jordan SmithAug 10, 2025
  If the ENC Inverter shows an overcurrent during constant speed, it might be due to a sudden load change or unwonted phenomena; check or reduce the load. If the acceleration/deceleration time is set too short, prolong the accelerating/decelerating time appropriately. Check the input power supply for low voltage. If the inverter's power is insufficient, select a higher-power inverter.
P
patrick06Aug 15, 2025
What to do if my ENC Inverter shows over current during decelerating?
- M
  Michael PorterAug 15, 2025
  If the ENC Inverter shows overcurrent during deceleration, the decelerating time may be too short, so prolong it. If there's potential energy load or big inertia load, increase the braking power of the external energy consumption braking subassembly. If the inverter's power is a bit small, choose an inverter with high-power.
D
David MaxwellAug 19, 2025
Why is my ENC Inverter showing overvoltage during accelerating?
- B
  Brooke WilliamsAug 19, 2025
  If your ENC Inverter is showing overvoltage during acceleration, it could be due to a few reasons. First, check the input power supply for unwonted input voltage. Also, the acceleration time might be set too short, so prolong the accelerating time properly. Finally, if the motor is restarting while rotating, set the speed checking restart function.
J
jonesmatthewAug 25, 2025
What to do if my ENC Inverter shows overvoltage during decelerating?
- A
  adrianloweryAug 25, 2025
  If the ENC Inverter shows overvoltage during deceleration, the decelerating time may be too short, so prolong the decelerating time. If there is potential energy load or big inertia load, increase the braking power of external energy consumption braking subassembly.
C
Christopher RoseAug 29, 2025
How to fix ENC Inverter protection?
- M
  Matthew PerezAug 29, 2025
  If the ENC Inverter is under protection, it might be due to a blocked air-path or a damaged fan. To resolve this, clear the air-path or replace the fan.

Summary

Foreword

1 Safety Information and Use Notice Points

1.1 Safety Precautions

Details important safety precautions and warnings related to the inverter's operation and installation.

1.2 Use Range

Specifies the intended applications and limitations for using the EDS300 series inverter.

1.3 Use Notice Points

Provides essential operational guidelines and points to note for safe and effective use of the inverter.

1.4 Scrap Notice Points

Information on how to properly dispose of the inverter and its parts when they are scrapped.

2 Type and Specification of the Inverter

2.1 Incoming Inverter Inspect

Instructions for checking the inverter upon receipt, including packaging and contents verification.

2.2 Type Explanation

Explains the coding system used for identifying different EDS300 inverter models and their specifications.

2.3 Nameplate Explanation

Details how to interpret the information provided on the inverter's nameplate.

2.4 Series Type Explanation

Presents a table detailing various inverter types within the series and their corresponding specifications.

2.5 Appearance and Parts Name Explanation

Identifies and describes the external components and parts of the EDS300 inverter.

2.6 Outer Size and Gross Weight

Provides dimensional drawings and weight information for different EDS300 inverter models.

2.7 Outer Size of Keypad and its Fixing Box (Unit: mm)

Details the dimensions of the keypad and its associated fixing box.

2.8 Product Technic Index and Spec.

Lists the technical specifications and performance indexes of the EDS300 inverter.

3 Installation and Wiring

3.1 Installation Ambient

Specifies the recommended environmental conditions and site requirements for inverter installation.

3.1.1 Demand for Installation Ambient

Details specific demands for the installation environment, including temperature, humidity, and ventilation.

3.1.2 Installation Direction and Space

Provides guidance on the correct mounting orientation and required clearance space for the inverter.

3.2 Parts Disassembly and Installation

Instructions for safely disassembling and installing specific parts of the inverter, such as the keypad.

3.3 Wiring Notice Points

Crucial safety notices and important points to consider before and during the wiring process.

3.4 Main Loop Terminal Wiring

Details the wiring procedures for the main power circuit terminals of the inverter.

3.4.1 Connection Between Inverter and Fitting Parts

Explains how to connect the inverter to external components and protective devices.

3.4.2 Main Loop Terminal Wiring

Provides specific terminal descriptions and wiring diagrams for the main power loop.

3.5 Basic Running Wiring Diagram

Illustrates a fundamental wiring diagram for basic operation of the EDS300 inverter.

3.6 Control Loop Collocation and Wiring

Guides on connecting and wiring the control loop terminals and components.

3.6.1 Location & Function of Terminal and Jump-wire

Identifies the location and explains the function of terminals and jump-wires on the CPU board.

3.6.2 Explanation for Control CPU Board

Details the arrangement and function of control loop terminals on the CPU board.

3.6.3 Analog Input Output Terminal Wiring

Provides wiring instructions for analog input and output terminals, including CCI.

3.6.4 Communication Terminal Wiring

Explains how to wire communication terminals for serial interfaces like RS485.

4 Function Parameter Schedule Graph

4.1 Symbol Description

Explains the symbols used in the function parameter tables to denote parameter modifiability.

4.2 Function Parameter Schedule Graph

Presents detailed tables of function parameters, their ranges, and default settings for the inverter.

F1-Start-up, Stop, Brake Function Parameter Group

Details parameters related to starting, stopping, and braking operations of the inverter.

F2-Auxiliary Run Function Parameter Group

Covers auxiliary functions for running the inverter, including energy saving and AVR.

F4-Simple PLC Function Parameter Group

Parameters for configuring the inverter's integrated Simple PLC function for automated sequences.

F5-Terminal Correlative Function Parameter Group

Parameters related to the functions and configurations of the inverter's input and output terminals.

F6-Traverse Special Function Parameter Group

Parameters for specialized traverse functions, controlling movement and positioning.

F7-Frequency Provision Function Parameter Group

Parameters related to frequency control and provision for the inverter.

F8-Motor and Vector Control Function Parameter Group

Parameters for motor control, including voltage, current, speed, and pole settings.

F9-Protection Function Parameter

Parameters for various protection functions, such as overload, overvoltage, and self-restoration.

Fd-Failure Record Function Parameter

Failure Records

Records details of past failures, including set frequency, output parameters, and runtime.

FF-Code and Manufacturer Function Parameter

User Password

Allows setting or managing a user password for accessing inverter functions.

Manufacturer Password

Allows setting or managing a manufacturer password for advanced access.

C-Monitoring Function Parameter Group

Monitoring Parameters

Parameters for monitoring inverter status, including frequency, voltage, current, and temperature.

5 Trouble Shooting

5.1 Failure and Countermeasure

Lists possible failure codes, their causes, and recommended countermeasures for troubleshooting.

5.2 Failure Record Lookup

Explains how to access and interpret the inverter's stored failure history for diagnosis.

5.3 Fault Reset

Provides instructions on how to reset the inverter after a fault has been cleared.

6 Maintenance

6.1 Routine Maintenance

Guidelines for performing regular inspections and maintenance tasks to ensure optimal performance.

6.2 Inspection and Replacement of Damageable Parts

Identifies parts prone to wear and provides guidance on their inspection and replacement.

6.3 Repair Guarantee

Details the warranty terms, conditions, and procedures for inverter repair services.

6.4 Storage

Provides instructions for proper temporary and long-term storage of the inverter.

7 Modbus Communication Protocol

7.1 Summarization

Overview of the RS485 communication interface and its capabilities for monitoring and control.

7.2 Networking Mode for Communication Networking

Illustrates different network configurations for connecting the inverter via RS485.

7.3 Communication Mode

Describes the communication modes, default settings, and slave operation of the EDS300 inverter.

7.4 RTU Communication Mode

Details the RTU communication mode, including data frame format and timing.

7.4.1 Data Frame Format

Defines the structure and content of data frames used in RTU communication.

7.4.2 Host Read Slave Parameter

Explains the command structure for reading parameters from the inverter via Modbus RTU.

7.4.3 Host Write Slave Parameter

Explains the command structure for writing parameters to the inverter via Modbus RTU.

7.5 Data Communication Address Allocation

Details the addressing scheme for accessing parameters through Modbus communication.

7.5.1 Function Code F0-Fd Group Communication Address

Explains the addressing method for function code parameters using the PPnn mode.

7.5.2 Control Command and Status Word Communication Address

Lists communication addresses for control commands, status words, and alarm codes.

7.5.3 Monitor Parameter Communication Address

Provides communication addresses for monitoring various inverter parameters.

7.6 Communication Error Processing

Describes how the inverter handles communication errors and provides error codes.

7.7 Data Frame Examples

Provides examples of data frames for common communication scenarios like starting and stopping.

7.8 CRC Check Mode

Explains the CRC checksum calculation method used in Modbus communication.

Appendix A Serial Port 485 Communication Protocol

A.1 Summarization

Overview of RS485/RS232 communication interfaces for inverter monitoring and control.

A.2 Protocol Content and Description

Details the protocol content, network buildup modes, and communication modes.

A.2.1 Communication Net Buildup Mode

Illustrates network configurations for connecting inverters using RS485/RS232.

A.2.2 Communication Mode

Describes communication modes, auxiliary device roles, and parameter settings.

A.2.3 Transport Mode

Specifies transport modes, default formats, and baud rates for serial communication.

A.2.4 Data Command Frame Format

Defines the structure of command and response frames for serial communication.

A.2.5 Explanation and Description for Format

Explains frame structure, addressing, and response codes used in serial communication.

A.2.6 Protocol Command List

Lists commands for reading inverter status and parameters via serial communication.

Appendix B Braking Resistance

B.1 Braking Resistance

Explains the function of braking resistance and provides a configuration table for external resistors.

ENC EDS300 Series Specifications

General

Brand	ENC
Model	EDS300 Series
Category	Inverter
Language	English

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