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Watt Drive S3 Series - User Manual

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INVERTER
Series S3 / H3
M A N U A L

Table of Contents

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Summary

Introduction to WATT-Inverters

General Overview

Overview of S3/H3 series inverters, PWM design, IGBT technology, and output waveform.

Receiving and Inspection

Procedures for checking the inverter after unpacking, including product description and transport damage.

Inverter Installation Guide

Installation Location Requirements

Requirements for inverter installation environment: temperature, IP rating, protection from elements.

Inverter Positioning Guidelines

Guidelines for inverter placement, emphasizing ventilation and heat sink orientation.

Changing PC Boards Procedure

Steps for setting parameters after replacing PC boards, including Fn_95, Fn_00, and Fn_96.

Inverter Specifications

Basic Specification Details

Detailed technical specifications for S3 and H3 series inverters, including model numbers, power, current, voltage, and dimensions.

Optional Circuit Breaker and Wire Specs

Specifications for optional circuit breakers and wire sizes for different inverter models.

Functional Specification

Covers carrier frequency, control characteristics, protection functions, operation signals, and environmental conditions.

Wiring and Remote Control

Interconnection Diagram and Explanation

Diagram and explanation of how to connect power sources, motors, and external control devices to the inverter.

Terminal Function Descriptions

Details on the function of main circuit terminals (TM1) and control terminals (TM2) on the S3/H3 series.

Remote Control Functions

Digital Operator Function Illustration

Visual guide to the digital operator interface, keys, and display indicators for controlling the inverter.

Inverter Function List

Comprehensive list of inverter functions (Fn_xx), their descriptions, set units, ranges, and factory settings.

Detailed Function Descriptions

Detailed explanations of specific functions like acceleration/deceleration times, S-curve, and remote operation select.

Failure Indication and Troubleshooting

Faults Not Reset Manually

Lists faults like CPF, EPR, OV, OH, their probable causes, and recommended actions.

Auto-Reset or Manually Reset Faults

Details faults like OC-S, OC-A, OC-C, OC-d, OC-b, OV-C, their causes, and corrective actions.

Manually Reset Only Faults

Lists faults like OC-, OL1, OL2, OL3, their probable causes, and required troubleshooting steps.

Special Condition Indications

Indicates special conditions like Zero speed stop, Direct start disable, and Emergency stop.

Digital Operator Failure Indications

Troubleshooting for operator failures like LOC (Parameter/freq. lock) and Err1-Err7.

Routine Maintenance Procedures

Cleaning and Connection Checks

Instructions for cleaning internal dust and checking electrical connection tightness.

Mega Test Procedure

Guidance on performing Mega test on main circuit, with safety precautions for control circuit.

APPENDIX A: ZCT

APPENDIX B: Electromagnetic Compatibility (EMC)

EMI;RFI Precautions and Earthing

Measures for limiting EMI/RFI, including earthing for inverters, motors, and control circuits.

Cable Shielding and Segregation

Guidelines for proper cable shielding and segregation to minimize electromagnetic interference.

APPENDIX C: Troubleshooting Procedure

Motor Not Working Troubleshooting

Step-by-step guide to diagnose and resolve issues when the motor fails to operate.

Motor Overheating Troubleshooting

Diagnosing and resolving motor overheating issues, checking load, speed, and cooling.

Motor Smooth Running Troubleshooting

Troubleshooting steps for motors that do not run smoothly during acceleration or deceleration.

Watt Drive S3 Series Specifications

General IconGeneral
Protection ClassIP20
Output Voltage0 to Input Voltage
Cooling MethodFan cooled
Communication InterfacesModbus RTU
Relative Humidity< 95% (non-condensing)
AltitudeUp to 1000 m above sea level

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