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Hitachi SJ300 Series Motor, Inverter, Voltage measurement with load, Three-phasemeasurement diagram, Voltage measurement without load

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Maintenance and Inspection

The figure below shows measurement locations for voltage, current, and power measurements listed in the table on the previous page. The voltage to be measured is the fundamental wave effective voltage. The power to be measured is the total effective power.

Three-phase measurement diagram

Inverter

L1

I1

R

U

I1

T1

E1

W01

EU-V

W01

L2

I2

S

V

I1

T2

Motor

E1

W02

EU-V

W02

L3

I3

T

W

I1

T3

E1

EU-V

Inverter Output Voltage Measurement Techniques

Taking voltage measurements around drives equipment requires the right equipment and a safe approach. You are working with high voltages and high-frequency switching waveforms that are not pure sinusoids. Digital voltmeters will not usually produce reliable readings for these waveforms. And, it is usually risky to connect high voltage signals to oscilloscopes. The inverter output semiconductors have some leakage, and no-load measurements produce misleading results. So, we highly recommend using the following circuits to measure voltage for performing the equipment inspections.

Troubleshooting and Maintenance

Voltage measurement with load

Voltage measurement without load

L1/R

U/T1

L1/R

U/T1

L2/S

Inverter

V/T2

L2/S

Inverter

V/T2

L3/T

W/T3

L3/T

W/T3

5kΩ

30W

220kΩ

220kΩ

2W

2W

+

–

+

–

V class

Diode bridge

Voltmeter

V class

Diode bridge

Voltmeter

200V class

600V 0.01A min.

300V range

200V class

600V 0.01A min.

300V range

400V class

1000V 0.1 A min.

600V range

400V class

1000V 0.1 A min.

600V range

HIGH VOLTAGE: Be careful not to touch wiring or connector terminals when working with the inverters and taking measurements. Be sure to place the measurement circuitry above in an insulated housing before using them.

Contents

SJ300 Series Inverter Instruction Manual Manual Number: NB613XJ After reading this manual September keep it handy for future reference Page Safety Messages WARNING: CAUTION: Page Installation—Cautionsfor Mounting Procedures Wiring—Warningsfor Electrical Practices and Wire Specifications Wiring—Cautionsfor Electrical Practices Powerup Test Caution Messages Warnings for Operations and Monitoring Cautions for Operations and Monitoring Warnings and Cautions for Troubleshooting and Maintenance Page Page General Caution Terminal Tightening Torque and Wire Size Page Fuse and Circuit Breaker Sizes Ampere Rating for Fuse or Wire Connectors Table of Contents Page Revision History Table No Revision Comments Date of Issue Operation Manual No Page Getting Started Main Features Digital Operator Interface Components Removable Components Specifications Label and Agency Approvals Model Number Convention class inverters class inverters 400V Class Specifications Note 1: Note 2: Note 3: Note 4: Note 5: General General Specifications Signal Ratings Signal / Contact Ratings Derating Curves SJ300 1.5 to 22 kW at 50 deg. C ambient SJ300 30 to 55 kW at 50 deg. C ambient SJ300 30 to 55 kW at 50 deg. C ambient, continued Amps Rated % of SJ300 75 to 150 kW at 50 deg. C ambient The Purpose of Motor Speed Control for Industry What is an Inverter Torque and Constant Volts Inverter Input and Three-Phase Power TIP: Inverter Output to the Motor Intelligent Functions and Braking Velocity Profiles Page Page Motor type Motor size Inverter Mounting and Installation Unpacking and Inspection Main Physical Features First-level access Second-level Page Page Inverter Step 1: Choosing a Mounting Location Ensure Adequate Ventilation Step 2: SJ300 Keep Debris Out of Inverter Vents Step 3: Check Inverter Dimensions Page Page Page Page Prepare for Wiring Step 5: Determining Wire and Fuse Sizes Brake Res Models Page Dimensions and Torque Specs Inverter Models Page Wire the Inverter Input to a Supply Step 6: –004LFU, –007to –055LFU/HFE, HFU –075LFU/HFE,HFU –110LFU/HFE,HFU Page Wire the Inverter Output to Motor Perform the Powerup Test Goals for the Powerup Test Pre-testand Operational Precautions Powering the Parameter Editing and Controls Function Key Up/Down Keys Store Keys, Modes, and Parameters Type (Category) of Function Mode to Access PGM LED Group Keypad Navigational Map Monitor Mode Program Mode Selecting Functions and Editing Parameters Setting the Motor Base Frequency Action Display Func./Parameter A 0 0 Page Monitoring Parameters with the Display Output frequency (speed) monitor H – – – Running the Motor Powerup Test Observations and Summary Step 10: Error Codes E X Acceleration and Deceleration Configuring 3 Drive Parameters Programming Keypads Parameter Cables (for optional Part Inverter Front Panel Keypad Key and Indicator Legend Keypad Navigational Map Inverter Control Algorithms Monitoring Functions “D” Function SRW Display and Units Trip Event and Error Monitoring “F” Function Basic Parameter Settings “A” Function Page Analog Input Settings Page Multi-speedand Jog Frequency Settings Inverter Torque Control Algorithms Torque Boost – V/f Free-setting Vector Control with Encoder Feedback – Page DC Braking Settings When starting Internal DC braking External DC braking Derating of DC Braking Frequency- related Functions Jump Frequencies – Acceleration Pause Function PID Control Automatic Regulation (AVR) Function Energy Savings Mode / Optimal Second Acceleration and Deceleration Page Accel/Decel Characteristics Page Additional Analog Input Restart Mode and Phase Loss “B” Function Electronic Thermal Overload Alarm Setting Function/Description Data or Range Function Code Reduced Torque Characteristic Constant Torque Characteristic Free Thermal Characteristic Page Restriction Page Mode B031 [SFT] Standard Parameters F001 and Miscellaneous Page Page Page Page Page Page Page Free-settingV/f Pattern External Brake Control Input Terminal Configuration 7] Functions and Options “C” Function Page Intelligent Input Overview 6, 7, or Summary Table Input Function Summary Table Page Page Page Output Terminal Configuration Output Summary Table Output Function Summary Table Page Analog Summary Table Analog Output Function Summary Table Corresponding Signal Output Function Adjustment Page Serial Communications Analog Signal Calibration Page Inverter Torque Control Algorithms Page Page “P” Function Page “U” Function Programming Error Parameter out of bounds Boundary defined by Page Page Operations and Monitoring Related functions Intelligent terminals Electrical interfaces Cautions for Operating Procedures Warnings for Page Page Page Page Example Wiring Specifications of Control and Logic Connections Terminal Name Ratings and Notes Terminal Listing Intelligent INPUTS Intelligent OUTPUTS Page Input Wiring Examples Wiring Diagram Conventions Be sure the jumper position and return terminal used match your application wiring needs Forward Run Stop and Reverse Multi-SpeedSelect Multi Input Function Override Feature Page Page Command External Signal for DC Injection Braking Set Second or Third Motors Two-stage Free-run Stop External Trip Input Unattended Start Protection Commercial Power Source Switching Page Page Current/Voltage Select Reset Inverter Thermistor Thermal Protection Three-wire Operation PID ON/OFF and PID Clear Internal Speed Loop Gain Page Remote Control Up and Down Force Operation from Digital Operator Overload Restriction OLR Parameter Selection Page Torque Limit Page External Brake Control Function Page Expansion Card Input Signals Page Run Signal outputs: Frequency Arrival Signals Page Advance Notice Output Deviation for PID Control Alarm Signal Page Over-torque Instantaneous Power Failure Under-voltage Page Page Torque Limit Signal Run Time Power-OnTime Over Signals Thermal Warning Signal Page Thermal Warning Output Brake Control Signals Expansion Card Output Signals Input Terminal Signals Input Filter A006 A005 ExternalFrequency Trim Frequency Reverse avail Wiring Examples Voltage Input Bipolar Voltage Input Current Input [FM] Terminal Waveform Full Scale Value PWM Signal Type FM Signal Type [AM] and [AMI] Terminals Default Sensorless Vector Control – Sensorless Vector Control, 0Hz Domain – Vector Control with Feedback – Page Auto-tuningof Motor Constants Auto-tuningProcedure Preparation for Procedure – Adaptive Auto- tuning of Motor Constants Trip during auto-tuning •Power loss or stop during auto-tuning– If the auto-tuning Free V/F setting – Manual Setting of Motor Constants Sensorless Vector Control with Feedback – Operation Status Symptom Adjustment Page Simultaneous Connections Inverter Configuration for Multiple Motor Types Parameter Codes 1st motor 2nd motor 3rd motor Page Inverter System Accessories Page AC Reactors, Input Side AC Reactor or LCR Filter, Output Side Example calculation: Zero-phase Reactor (RF Noise Filter) EMI Filter Ferrite Core Expansion Cards Dynamic Braking Usage Ratio SJ300 Selection Tables 1/2 to 15 hp (0.4 to 11 kW) Braking Unit Performance Versus External Braking Units 20 to 200 hp (15 to 1500 kW) Without With Braking Unit Selecting a Braking Resistor 200V Class 400V Class external Example configuration x (quantity) Page Page Troubleshooting 6 and Maintenance Safety Messages General Precau tions and Notes Inspection Items Troubleshooting Tips Symptom/condition Probable Cause Solution Page Fault Detection and Clearing Error Status Codes Error Codes E07.2 Status Page Page Monitor Menu Trip History Current Trip Conditions Action Display Func./Parameter Monthly and Yearly Inspection Chart Inspection Item Inspected Megger Test Spare parts Capacitor Life Curve Part description Quantity Used Capacitor Replacement Fan Assembly Replacement General Inverter Measurements Circuit location Measuring Reference Value Three-phasemeasurement diagram Voltage measurement with load Voltage measurement without load IGBT Test Method Warranty Terms Glossary and Bibliography Ambient Temperature Arrival Frequency Auto-tuning Base Frequency Diode Duty Cycle Error EMI Four-quadrantoperation Isolation Transformer Jump Frequency Line Reactor Momentum Reactance Rectifier Regenerative Braking Regulation Reverse Torque Thermal Switch Three-phasePower Transistor Trip Watt Loss SerialB Communications Specifications User-selectable Serial Connection Diagrams Serial Network Introduction to Command Command – Element Size Page Page Page Page Page Page Page Page Page Command – 0A Command – 0B Inverter Affirmative Reply Inverter Negative Reply Error Description Block Check Code (BCC) ASCII Code Table Character ASCII Code Communication Test Mode Page Drive Parameter Settings Tables Main Profile “F” Group Parameters Default Setting Standard “A” Group Parameters Page Page Page Fine Tuning “B” Group Parameters Page Page “C” Group Parameters Page Page Motor Constants “H” Group Parameters Page Expansion Card “P” Group Parameters User-selectable Menu Functions CE–EMC Installation Guidelines Page 6.Follow safety measures in the filter installation SJ300 inverter with footprint-typefilter SJ300 inverter with book-typefilter Page Index