Hitachi SJ300 Series 228

6–4

Troubleshooting

	Symptom/condition		Probable Cause		Solution


			• If using the analog input, is there	•	Check the wiring.
			current or voltage at [O] or [OI]?	• Check the potentiometer or
					signal generating device.

			• Is the load too heavy?	•	Reduce the load.
				• Heavy loads activate the
					overload restriction feature
	The motor speed will not reach the				(reduces output as needed).

			• Is the inverter internally limiting the	• Check max frequency setting
	target frequency (desired speed).		• Is the inverter internally limiting the	• Check max frequency setting
			output frequency?		(A004)
				• Check frequency upper limit
					setting (A061)
				• If using analog inputs, check
					their settings (A101– A104)
					or (A111–A114), or (A011–
					A014)

			• Is the load fluctuation too great?	• Increase the motor capacity
					(both inverter and motor).
	The rotation is unstable.		• Is the supply voltage unstable?	• Fix power supply problem.
	The rotation is unstable.		• Is the problem occurring at a particular	• Change the output frequency
			frequency?		slightly, or use the jump
					frequency setting to skip the
					problem frequency.

	The RPM of the motor does not		• Is the maximum frequency setting	• Verify the V/F settings match
	The RPM of the motor does not		A004 correct?		motor specifications.
	match the inverter output		A004 correct?		motor specifications.
	match the inverter output		• Does the monitor function D001	• Make sure all scaling (such as
	frequency setting.		• Does the monitor function D001	• Make sure all scaling (such as
	frequency setting.		display the expected output frequency?		A011 to A014) is properly set.
			display the expected output frequency?		A011 to A014) is properly set.

	A parameter	True for certain	• Is the inverter in Run Mode? Some	• Put inverter in Stop Mode
	A parameter	parameters	parameters cannot be edited during		(press the Stop/reset key). Then
	will not	parameters	parameters cannot be edited during		(press the Stop/reset key). Then
	will not		Run Mode.		edit the parameter.
	change after		Run Mode.		edit the parameter.
	change after
	an edit	True for all	• If you’re using the [SFT] intelligent	• Change the state of the SFT
	(reverts to old	parameters	input (software lock function)—is the		input, and check the B031
	setting).	parameters	input (software lock function)—is the		input, and check the B031
	setting).		[SFT] input ON?		parameter (SFT mode).
			[SFT] input ON?		parameter (SFT mode).

Troubleshooting and Maintenance

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