Sinee A90-4T060 User Manual

User Manual of A90 Series Inverter
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Chapter 8 Motor Parameter Self-identification
8.1 Motor Parameter Self-identification
When the vector control mode is selected, the motor parameters must be self-identified.
For non-vector control, it is recommended to perform parameter self-identification during
the first run in order to improve the control accuracy.
The motor parameters required for calculation in vector control are usually not
available to users. The A90 series inverter has the function of motor parameter
self-identification. When the self-identification is enabled, the inverter will automatically
test the relevant parameters of the connected motor and store them into the internal memory.
Fig. 0-1 shows the specific meanings of the parameters of the three-phase asynchronous
motor.
U1
I1
I2
I0
Lm
R1 L1-Lm R2
L2-Lm
(1-s)/s*R2
Fig. 0-1 Equivalent Circuit of Three-phase Asynchronous Motor
R1, R2, L1, L2, Lm, and I0 in the figure represent: stator resistance, rotor resistance,
stator self-inductance, rotor self-inductance, mutual inductance, and no-load excitation
current. The leakage inductance is Ls=L-Lm.
8.2 Precautions before Self-identification

Motor parameter self-identification is a process of automatically measuring motor
parameters. The A90 series inverter can perform the static and rotary
self-identification of motor parameters.

The static self-identification is applicable when the motor load cannot be removed
but the motor parameters are available.

Sinee A90-4T060 Specifications

General

Rated Power	60 kW
Output Power	60 kW
Frequency	50/60Hz
Input Voltage	380V - 480V
Output Voltage	380V - 480V
Efficiency	98%
Protection Features	Over voltage, Under voltage, Over current, Short circuit

Summary

Safety Precautions

Precautions

General safety guidelines before installation, during operation, and maintenance.

Before installation

Specific safety warnings and dangers related to inverter installation.

During installation

Safety warnings concerning installation location and components.

Warning

Warnings about handling components, installation location, and heat dissipation.

During wiring

Dangers and warnings associated with wiring the inverter and its components.

Before power-on

Safety checks required before powering on the inverter, including voltage and connections.

After power-on

Safety precautions to follow after the inverter is powered on, emphasizing avoiding contact with live parts.

During operation

Safety warnings to prevent injury or damage during inverter operation.

During maintenance

Critical safety measures for performing maintenance, including power-off procedures.

Chapter 2 Installation

2.1 Product check

2.3 Installation Site Requirements and Management

Critical conditions and management aspects for the inverter's installation site.

Chapter 3 Wiring

3.1 Connection of Peripheral Device

3.2 Wiring of Main Circuit Terminal

Composition and schematic layout of the inverter's main circuit terminals.

3.2.4 Input side wiring of main circuit

3.2.5 Output side wiring of main circuit

3.2.7 Ground wire

Essential requirements and methods for proper grounding of the inverter.

3.3 Wiring of Control Circuit Terminal

Introduction to the control circuit terminals and their functionalities.

Chapter 4 KEYBOARD OPERATIONS

4.1 Keyboard Functions

Chapter 5 Trial run

5.1 Inverter Commissioning Process

5.2 Confirmation before Power-on

A comprehensive checklist for verifying all connections and settings before powering on.

5.5 Start and Stop Control

5.7 Motor Parameter Identification

Explains the process of identifying motor parameters to optimize inverter control.

Chapter 7 Function Code Details

7.2 Motor 1 parameter group of F01 group

7.3 Function Parameter Group of Input Terminal of F02 Group

7.4 Function Parameter Group of Output Terminal of F03 Group

7.7 Vector Control Parameter Group of F06 Group

7.8 Fault Protection Parameter Group of F07 Group

7.11 Communication Function Parameter Group of F10 Group

7.13 Keyboard and Display Function Parameter Group of F12 Group

Chapter 8 Motor Parameter Self-identification

8.1 Motor Parameter Self-identification

Importance and process of motor parameter self-identification for vector control.

8.2 Precautions before Self-identification

Precautions to take before performing motor parameter self-identification.

8.3 Self-identification Steps

Step-by-step procedure for performing motor parameter self-identification.

Chapter 9 Fault/Warning Solutions

9.1 Fault content

Table detailing fault codes, types, causes, and solutions for common inverter issues.

9.2 Failure Analysis

Analysis of common failures related to parameter settings and motor rotation issues.

Chapter 10 Maintenance

10.1 Daily Maintenance of Inverter

Procedures for daily inspection and regular maintenance of the inverter.

Chapter 12 MODBUS Communication Protocol