Sinee A90-2T4R8B User Manual

User Manual of A90 Series Inverter
1
Preface
Thank you for choosing SINEE’s A90 series inverter.
Document No.: 31010180
Release time: 2020-5
Version: 101
The A90 series inverter is a high-reliability and small-sized inverter launched by
SINEE. It supports the three-phase AC asynchronous motor and permanent magnet
synchronous motor; a variety of international leading drive control technologies, such as the
vector VF (VVF) control and speed sensorless vector control (SVC); and speed output and
torque output.
Features of the A90 series inverter:
 No need for derating at the ambient temperature of 50°C;
 Small size, leading in the industry;
 Wide speed range and high control accuracy: VF/1:50; SVC/1:200; rated speed:
±0.2%;
 High load capacity in low-frequency band: VF/1Hz/150%, SVC/0.25Hz/150%;
 Perfect protections: protections against the overcurrent, overvoltage, overload,
overheating, etc.
Before using the A90 series inverter, please read this manual carefully and keep it
properly.
While connecting the inverter to motor for the first time, please select the motor
type (asynchronous or synchronous) correctly and set the motor nameplate
parameters: rated power, rated voltage, rated current, rated frequency, rated speed,
motor connection, rated power factor, etc.
We are committed to continuously improving our products and product data, so the
data provided by us may be modified without prior notice.
For the latest changes and contents, please visit www.sinee.cn.

Sinee A90-2T4R8B Specifications

General

Model	A90-2T4R8B
Category	Inverter
Output Waveform	Modified Sine Wave
Input Voltage	12V DC
Output Voltage	220V AC
Output Frequency	50Hz
USB Output	5V/2.1A
Cooling	Fan
Protection	Overload, Short Circuit

Summary

Preface

Safety Precautions

Precautions

General safety guidelines for installation, operation, and maintenance to prevent hazards.

Chapter 1 Overview

1.1 Model and Specification of A90 Series Inverter

Details on inverter models, voltage ratings, applicable motors, and output current specifications.

1.2 Detailed Introduction to Running Status of A90 series Inverter

Explanation of inverter working states: parameter setting, normal running, jog, stop, and fault statuses.

Chapter 2 Installation

2.1 Product Check

Steps to verify product condition and order consistency upon receipt.

2.3 Installation Site Requirements and Management

Specifies environmental conditions, ventilation, temperature, and site preparation for installation.

2.4 Installation Direction and Space

Guidance on inverter orientation and clearance for proper heat dissipation.

Chapter 3 Wiring

3.1 Connection of Peripheral Device

Standard wiring diagram showing connections between the inverter and peripheral devices.

3.2 Wiring of Main Circuit Terminal

Details the layout and function of main circuit terminals for power input/output and grounding.

3.3 Wiring of Control Circuit Terminal

Explains control circuit terminals for input, output, and communication connections.

Chapter 4 KEYBOARD OPERATIONS

4.1 Keyboard Functions

Overview of the LED keyboard's structure, keys, displays, and status indicators for operation.

4.2 Operation Mode of Keyboard with Digital Tube Display

Describes keyboard operation modes: monitoring, menu selection, function code, and parameter levels.

Chapter 5 Trial run

5.1 Inverter Commissioning Process

Step-by-step guide for initial inverter startup, configuration, and testing.

5.2 Confirmation before Power-on

Crucial checks for wiring, grounding, and load status before energizing the inverter.

5.5 Start and Stop Control

Methods for controlling inverter start and stop operations via keyboard, terminals, or communication.

Chapter 6 Function Code Table

6.1 Description of Function Code Table

Explains the organization of function codes into groups and their general purpose.

6.2 Table of functional parameters

Comprehensive listing of all functional parameters, their settings, units, and attributes.

Chapter 7 Function Code Details

7.1 Basic Function Parameter Group of F00 Group

Details core function codes for drive modes, command sources, terminal control, and frequency sources.

Chapter 8 Motor Parameter Self-identification

8.1 Motor Parameter Self-identification

Explains the process of automatically measuring motor parameters for improved control accuracy.

8.2 Precautions before Self-identification

Important considerations and steps to take before performing motor parameter self-identification.

8.3 Self-identification Steps

Step-by-step guide for performing static and rotary self-identification for different motor types.

Chapter 9 Fault/Warning Solutions

9.1 Fault Content

Lists fault codes, their causes, and recommended solutions for inverter abnormal statuses.

9.2 Failure Analysis

Analyzes common operational failures like incorrect parameter settings and abnormal motor rotation.

Chapter 10 Maintenance

10.1 Daily Maintenance of Inverter

Routine inspection and cleaning procedures for the inverter to ensure proper operation and prevent faults.

10.2 Instructions for Inverter Warranty

Details warranty terms and conditions for inverter body, and fees for out-of-warranty services.

Chapter 11 Optional Accessories

11.1 Braking Resistor

Explains the function of braking resistors for regenerative energy and provides selection guidance.

11.2 Braking Unit

Introduces the BR100 series braking units and their power ranges for A90 inverters.

11.3 Selection of Connecting Wires

Specifies wire requirements for braking units and resistors, including insulation and cross-section.

Chapter 12 MODBUS Communication Protocol

12.1 Applicable Scope

Defines the series and network types supported by the A90 inverter for MODBUS-RTU communication.

12.2 Interface Mode

Details the RS-485 communication mode, network address, data format, and baud rate settings.

12.3 Protocol Format

Explains the structure of MODBUS RTU messages, including PDU, CRC check, and function codes.

12.4 Communication timeout

Defines communication timeout intervals based on baud rate and idle time for reliable data transmission.