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Delta Electronics VFD-G Over Heat OH, Overload, OL1/ OL2, Is load too large, Troubleshooting

Models: VFD-G

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5.5 Over Heat (OH)

Chapter 5 Troubleshooting

5.5 Over Heat (OH)

AC motor drive overheats

Heat sink overheats

Check if temperature of heat sink No is greater than 90 OC

Yes

Temperature detection malfunctions. Please contact DELTA.


Is load too large		Yes			Reduce load
Is load too large					Reduce load
	No
	No
			No
If cooling fan functions normally
							Change cooling fan
							Change cooling fan
	Yes
	Yes
			Yes				Remove obstruction
Check if cooling fan is jammed			Yes
Check if cooling fan is jammed
	No
	No
Check if surrounding temperature					No				Maybe AC motor drive has malfunction or
is within specification									misoperation due to noise. Please contact
is within specification									DELTA.
	Yes								DELTA.



Adjust surrounding temperature
to specification

5.6 Overload

OL		OL1/ OL2

	Check for correct settings at
	Pr. 06-06 and 06-07
			Yes
					No
	Is load too large				No
	Is load too large
			Yes
			Yes

No	Modify setting

Maybe AC motor drive has malfunction or misoperation due to noise.

Reduce load or increase the power of AC motor drive

5-4	Revision July 2008, EG03, SW V1.06

Image 145

Delta Electronics VFD-G manual Over Heat OH, Overload, OL1/ OL2, Is load too large, Troubleshooting, Remove obstruction

Contents

Page Page Page PLEASE READ PRIOR TO INSTALLATION FOR SAFETY PrefaceDANGER Page Table of Contents Table of ContentsChapter 2 Installation and Wiring PrefaceChapter 3 Keypad and Start Up Chapter 5 TroubleshootingChapter 4 Parameters Specification for main circuit terminals and control terminalsAppendix A Specifications Chapter 6 Fault Code Information and MaintenanceAppendix B Accessories Appendix C How to Select the Right AC Motor Drive 1.1 Receiving and Inspection Chapter 1 Introduction1.1.1 Nameplate Information 075F43AG4T5010001075F43AG4 T 7 01 1.1.3 Series Number Explanation1.1.4 Drive Frames 1.2 Appearances150-215HP/110-160kWFrame G 50-125HP/37-90kWFrame E, E1250-300HP/185-220kWFrame H Chapter 1 Introduction7.5-20HP/5.5-15kWFrame 1.3 Remove Instructions 1.3.1 Remove Keypad25-40HP/18.5-30kWFrame D 50-125HP/37-90kWFrame250-300HP/185-220kWFrame H 1.3.2 Remove Front Cover7.5-20HP/5.5-15kWFrame C 25-40HP/18.5-30kWFrame D150-215HP/110-160kWFrame G 50-125HP/37-90kWFrame E, E1250-300HP/185-220kWFrame H Chapter 1 IntroductionFor 50-125HP Frame E, E1 1.4 LiftingStep StepStep For 150-215HP Frame GStep StepStep For 250-300HP Frame HStep Step1.5.2 Minimum Mounting Clearances 1.5 Preparation for Installation and Wiring 1.5.1 Ambient ConditionsAir Flow 2. Failure to observe these precautions may void the warranty Chapter 1 Introduction 1.6 DimensionsFrame FrameFrame Chapter 1 IntroductionFrame 425.016.73Chapter 1 Introduction This page intentionally left blank1-14 Revision July 2008, EG03, SWChapter 2 Installation and Wiring Chapter 2 Installation and Wiring 2.1 WiringDANGER VFD-G Chapter 2 Installation and WiringRevision July 2008, EG03, SW NOTE*1- 3 are optionalVFD-G Chapter 2 Installation and WiringFor 460V series, 25hp and above Revision July 2008, EG03, SWSOURCE Mode SINK ModeDigital Signal Common +24V EF FWD REV MI1 MI2 MI3 MI4 DCM +24V EF FWD REV MI1 MI2 MI3 MI4Excellent Good Not allowed Choke 2.2 External WiringBR Brake resistor VF DBVFD-G 2.3 Main Circuit ConnectionIM 3~ VFD-GDC Reactor DC ReactorJumper Jumperexternal brake unit 2.4 Control Terminals ferrite core wind each wires 3 times or more around the coreAnalog inputs AI1, AI2, AC1, AC2 AI1/AI2 C AC1/AC2General DANGER2.5 Specification for main circuit terminals and control terminals 25 HP to 40 HP VFD185F43A-G, VFD220F43A-G, VFD300F43A-G POWERV/T2 W/T3 DC +POWER Chapter 2 Installation and WiringPOWER ALARM 2-16CHARGE 75 HP to 125 HP VFD550F43A-G, VFD750F43A-G, VFD900F43C-GPOWER Chapter 2 Installation and Wiring2-18 Revision July 2008, EG03, SWPOWER Chapter 2 Installation and WiringRevision July 2008, EG03, SW 2-19Chapter 2 Installation and Wiring 2.6 Wiring Explanation for Analog Input Terminal2-20 Revision July 2008, EG03, SW1. When using analog current input 0~1A, please plug into the left two pins See the red mark, and make sure the jumper is connected well See what the following yellow arrows point at This page intentionally left blank Chapter 2 Installation and Wiring2-22 Revision July 2008, EG03, SW3.1 Digital Keypad VFD-PU01 3.1.1 Description of the Digital Keypad Chapter 3 Keypad and Start UpSTOP RESET Setting direction 3.1.2 How to Operate the Digital Keypad VFD-PU01START To shift data3.1.4 Reference Table for the LED Display of the Digital Keypad 3.1.3 VFD-PU01 DimensionsRUN STOP RESET 3.2 Operation MethodRUN STOP „ Check if the motor direction of rotation is correct 3.3 Trial Run„ Check if acceleration and deceleration are smooth Chapter 3 Keypad and Start Up This page intentionally left blankRevision July 2008, EG03, SW Chapter 4 Parameters Settings 4.1 Summary of Parameter SettingsSetting Group 0 User ParametersSetting SettingsParameter FunctionsParameter Parameter Setting SettingsParameter FunctionsSetting SettingsGroup 3 Output Function Parameters ParameterSetting SettingsGroup 4 Input Function Parameters ParameterSetting SettingsParameter FunctionsSetting SettingsGroup 5 Multi-step Speed Parameters ParameterParameter Setting SettingsParameter FunctionsParameter Parameter Parameter Setting SettingsParameter FunctionsSetting SettingsGroup 10 PID Control Parameters Parameter4.2 Parameter Settings for Applications VFD-G VFD-GEmergency Stop by DC Brake Output Signal during Running Output Signal for Base Block This parameter can be set during operation 4.3 Description of Parameter SettingsCode Bit 8 Master frequency source via communication interface 00 - 14 PLC Time Group 1 Basic Parameters 01 - 04 Mid-point Voltage 01-04 Output voltage 01-0201-06 Output FrequencyJOG Frequency Accel/Decel time unit 01-231 Sec 0.1 SecGroup 2 Operation Method Parameters PWM Carrier Frequency Selections Settings7.5~10HP 4000~6000Hz 15~30HP 3000~6000HzFWD/STOP VFD-GREV/STOP RUN/STOP02 - 07 Reserved User Defined Coefficient Group 3 Output Function Parameters SettingFunctions DescriptionsFrequency 2Hz SettingTime Functions03 - 04 DC Fan Control Settings 03 - 09 Analog Output 2 Selection Factory Setting00 0~20mA 01 4~20mAGroup 4 Input Function Parameters SettingFunctions DescriptionsFunctions SettingDescriptions Minimum AI2 Analog Input Page 1st Analog Input Frequency Gain Group 5 Multi-step Speed Parameters 05 - 15 PLC ModeExample 2 Pr.05-15 = 2 Continuously executes program cycles settings areExample 3 Pr.05-15 = 3 Execute one cycle step by step Chapter 4 Parameters Weights 0=Forward 1=ReverseBit 0 1 0 0 1 1 0 0 1 1 1Time Duration of 1st Step Speed 9 1011 12 FrequencyMulti-Step Speed via External Terminals Chapter 4 ParametersFactory Setting 150% SettingsTime Over-current Stall Prevention during AccelerationOver-current Stall Prevention during Operation Over-current Stall Prevention during Acceleration06 - 03 Over-torque Detection Selection Operation 80 100 120 140 1605 Timemin LoadSettings 42 CC,OC hardware error HPF2 43 OC hardware error HPF3 Group 7 AC Drive and Motor Parameters No-load Current of Motor Rated Slip Frequency of Motor This parameter could display running time of the motor Group 8 Special Parameters DC Braking Time Momentary Power Loss Operation Output frequency V/f curve settingOutput voltage 08-07 output currentAuto Restart Time after Fault 00 AVR function enabled Settings01 AVR function disabled 02 AVR function disabled for decelerationFactory Setting SettingsVibration Compensation Factor UnitGroup 9 Communication Parameters 09 - 05 Even/Odd Parity and Stopping Parity Setting Factory Setting 1 EV 2 GND 3 SG- 4 SG+ 5 NC 6 1 6 for communication Character ASCII Code Character ASCII Code RTU mode ASCII modeASCII mode ASCII mode RTU modeASCII mode RTU modeASCII mode RTU mode Command messageASCII mode RTU modeRTU mode Command message ADR CMD Data starting address Number of data word 3.5 Address list Content Content RTU mode ASCII modeThe explanation of exception codes Page Proportional Gain P Primary Low Pass Filter Time 01-02 Voltage% V/F Curve DiagramFrequency 0 20 40 60 80Chapter 4 Parameters This page intentionally left blank4-90 Revision July 2008, EG03, SW5.1 Over Current OC Chapter 5 Troubleshootingo cd Ov er-curre nt dur ing ac celeratio n5.3 Over Voltage OV 5.2 Ground FaultGround fault Remove ground faultIs input power correct? Or power cut, Yes 5.4 Low Voltage Lvincluding momentary power loss Restart after reset5.6 Overload 5.5 Over Heat OHReduce load or increase the power of AC motor drive Chapter 5 Troubleshooting5.7 Keypad Display is Abnormal 5.8 Phase Loss PHLAbnormal display or no display Yes Cycle power to AC motor drive Fix connector and eliminate noise NoChapter 5 Troubleshooting 5.9 Motor cannot RunRevision July 2008, EG03, SW Chapter 5 Troubleshooting 5.10 Motor Speed cannot be ChangedCheck to see if frequency is out of range upper/lower5.12 The Motor does not Run as Expected 5.11 Motor Stalls during AccelerationChapter 5 Troubleshooting settings5.14 Environmental Condition 5.13 Electromagnetic/Induction Noiseserial reactor phase lead capacitor 5.15 Affecting Other Machines6.1 Fault Code Information Chapter 6 Fault Code Information and Maintenance6.1.1 Common Problems and Solutions Fault Descriptions FaultChapter 6 Fault Code Information and Maintenance Corrective ActionsFault Descriptions FaultCorrective Actions NameFault Descriptions FaultCorrective Actions Name6.2 Maintenance and Inspections 6.1.2 ResetDaily Inspection Periodic InspectionMaintenance Periodical Maintenance Ambient environmentMaintenance DANGERKeypad Terminals and wiring of main circuit Transformer and reactor of main circuit Maintenance MaintenanceCooling fan of cooling system Check ItemsGeneral Specifications Appendix A SpecificationsGeneral Specifications Appendix A SpecificationsEnvironment B.1 All Brake Resistors & Brake Units Used in AC Motor Drives Appendix B Accessories9. Definition for Brake Usage ED% VFD Series Appendix B AccessoriesB.2 Non-fuse Circuit Breaker Chart B.3 Fuse Specification Chart B.4.1 AC Input Reactor Recommended Value 460V, 50/60Hz, 3-Phase B.4 AC Reactor460V DC Choke 460V, 50/60Hz, 3-Phase B.4.2 AC Output Reactor Recommended ValueSwitching spikes will be generated when the B.4.3 Applicationsconnected to the same power Correct wiringlarge-capacity powersmall-capacity AC motor driveDiagram A B.5 Zero Phase Reactor RF220X00ADiagram B B.6.2 Explanation of Display Message B.6 PU06 B.6.1 Description of the Digital Keypad VFD-PU06RESET STOPVFD-PU06 Operation Flow Chart B.6.3 PU06 Operation Flow ChartXX-XX XXXXX -ERR- -ENDRelated Specification Appendix C How to Select the Right AC Motor Driven T I M ⎢ C.1 Capacity Formulask ⋅ IM ≤ the rated current of AC motor drive A 1.5 the rated current of AC motor drive ASymbol explanation Parameter Settings Note C.2 General PrecautionSelection Note torque% C.3 How to Choose a Suitable Motor25% 40% 60% 100 continuousSpecial motors „ To avoid resonances, use the Skip frequenciestorque 60 secondsFrequency Hz Base freq. 60HzThis page intentionally left blank Appendix C How to Select the Right AC Motor DriveRevision July 2008, EG03, SW