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Delta Electronics VFD-M manual Ground Fault, Over Voltage OV, Ground fault, Troubleshooting

Models: VFD-M

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Chapter 5 Troubleshooting

5.2 Ground Fault

GFF

Ground fault

5.3 Over Voltage (OV)

Is output circuit(cable or			No
motor) of AC motor drive			No
motor) of AC motor drive
grounded?
		Yes
		Yes

	Remove ground fault

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

Over voltage

Reduce voltage to	No Is voltage within
be within spec.		specification
			Yes
			Yes

Maybe AC motor drive has malfunction or misoperation due to noise. Please contact with DELTA.

Has over-voltage occurred without load Yes No

No When OV occurs, check if the voltage of DC BUS is greater than protection value

YesYes

Reduce moment of inertia

Dose OV occur when			Increase			Yes
sudden acceleration			deceleration
sudden acceleration			deceleration
stops			time
		Yes		No

	Increase		Yes
	acceleration				Increase setting time
	acceleration				Increase setting time
	time
	time
		No				Need to consider using
No

	Reduce moment of load inertia					braking unit or
	Reduce moment of load inertia					DC braking

	No
		No
Use braking unit or DC braking		No
Use braking unit or DC braking
	Yes

Need to check control method. Please contact DELTA.

5-2	Revision May 2008, ME14, SW V3.04

Page 123

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Delta Electronics VFD-M manual Ground Fault, Over Voltage OV, Ground fault, Troubleshooting

Contents

Page Page Page Preface PLEASE READ PRIOR TO INSTALLATION FOR SAFETYDANGER Page Preface Table of ContentsTable of Contents Chapter 2 Installation and WiringChapter 5 Troubleshooting Chapter 3 Keypad and Start UpChapter 4 Parameters B.1.1 Dimensions and Weights for Brake Resistors& Brake Units Chapter 6 Fault Code Information and MaintenanceAppendix A Specifications Appendix B AccessoriesB-17 Appendix C How to Select the Right AC Motor DriveChapter 1 Introduction 1.1.3 Series Number Explanation D007M23A0 T 5 1.1 Receiving and Inspection1.1.1 Nameplate Information 1.1.2 Model Explanation1.1.4 External Parts and Labels Chapter 1 IntroductionRevision May 2008, ME14, SW Chapter 1 Introduction 1.1.5 Remove Instructions Remove Keypad Remove Front CoverRST Side UVW Side50mm 1.2 Preparation for Installation and Wiring 1.2.1 Ambient Conditions1.2.2 Minimum Mounting Clearances 50mmB 1 50 mm B 1 50 mm 1 50 mm150mm Air Flow1.3 Dimensions W W1D1D H This page intentionally left blank Chapter 1 IntroductionRevision May 2008, ME14, SW Chapter 2 Installation and Wiring DANGER 2.1 Basic Wiring DiagramExcellent Chapter 2 Installation and Wiring Good Not allowedRevision May 2008, ME14, SW U/T1 V/T2 W/T3 Zero-phase Reactor Output AC Line Reactor Motor 2.2 External WiringPower Supply FUSE/NFB Magnetic contactor Input AC Line Reactor Zero-phase Reactor EMI Filter R/L1 S/L2 T/L3 B1 Brake Resistor B22.3 Main Circuit 2.3.1 Main Circuit Connection Output terminals for main circuit U, V, W Terminals B1, B2 for connecting external brake unitTorque 2.3.2 Main Circuit Terminals2.4 Control Terminal Wiring Factory Settings NPN Mode24 + ACM Circuit AFM Internal Circuit ACM0~10V Potentiometer 2mAMax MO1-DCM wind each wires 3 times or more around the core Digital inputs M0~M5Analog inputs AVI, ACI Digital outputs MO1General DANGERChapter 3 Keypad and Start Up 3.1 Keypad 3.1.1 Description of the Digital KeypadVFD-M Displayed Message 3.1.2 How to Operate the Digital Keypad LC-M02E3.1.3 LC-M02E Revision May 2008, ME14, SW Digital Keypad - Mounting Panel A Unit mm inchDigital Keypad - Mounting Panel B Unit mm inch Chapter 3 Keypad and Start Up3.3 Trial Run 3.2 Operation Method4. Check following items „ Check if the motor direction of rotation is correct„ Check if acceleration and deceleration are smooth Revision May 2008, ME14, SW Chapter 4 ParametersParameter 4.1 Summary of Parameter SettingsSettings SettingExplanation SettingsSetting ParameterExplanation SettingsSetting ParameterExplanation SettingsSetting ParameterExplanation SettingsSetting ParameterExplanation SettingsSetting ParameterExplanation SettingsSetting ParameterExplanation SettingsSetting ParameterExplanation SettingsSetting ParameterExplanation SettingsSetting ParameterExplanation SettingsSetting ParameterExplanation SettingsSetting Parameter4.2 Parameter Settings for Applications REV/STOP RUN/STOPREV/FWD FWD/STOPFrequency Hold Skip Frequency Setting Output signal for Over-torque Purpose connecting a frequency meter orMulti-function Analog Output ApplicationsPr.01 4.3 Description of Parameter SettingsSource of Frequency Command Pr.00of Mid-Point Voltage Pr.07 greater than setting of Mid-Point Frequency Pr.06Pr.03 Pr.04parameter must be equal to or less than Mid-Point Frequency Pr.06 Pr.06Pr.07 Pr.08Motor Spec. 60Hz Chapter 4 ParametersCustom V/F Curve Fan/Pump V/F CurveMotor Spec. 50Hz Motor Spec. 60HzMotor Spec. 50Hz Motor Spec. 60HzPr.14 Settings 00 toAcceleration/Deceleration characteristics Settings 0.1 to 600.0 sec or 0.01 to 600.0 secPr.20 Pr.17Pr.18 Pr.19Pr.26 Pr.24Reverse Operation Inhibition Over-voltage Stall Preventionduring Acceleration Pr.27Pr.28 over-current Stall PreventionPr.31 Master Frequency Min. output Freq Pr.29 Operation commandONPr.29 Pr.30Pr.34 Momentary Power Loss Operation SelectionPr.32 Pr.33Pr.37 Pr.36Pr.38 RUN/STOPREV/FWD STOP RUN FWD/REVPr.42 SettingsPr.39 Pr.40Description SettingsNote The External Reset has the same function as the Reset Functionwhile the motor is stop. Refer to Pr.15, Pr.16 Settings FunctionDescription DOWN PLC operationSettings FunctionDescription Settings FunctionDescription Pr.43 Analog Output SignalAnalog Frequency Meter Analog Current MeterFunction SettingsPr.45 Pr.46Power indication Faults indicationPr.48 Desired Freq. Attained & Preset Freq. AttainedPotentiometer Reverse Motion Enable Pr.47+10V DC or 4 to 20mA DC. Refer to the following examples The whole scale of the potentiometer may be used as desired. In addition to the signals 0 to 10V and 4 to 20mA, other popular voltage signals include 0 to 5V, 20 to 4mA or that under This example also uses negative bias and includes a potentiometer frequency gain to allow the AC drive to reach the Maximum Output Frequency Pr.55 Pr.52Pr.53 Pr.54Pr.59 Pr.58Pr.64 Pr.60Pr.61 Pr.62Pr.66 Pr.65Pr.70 Pr.67Pr.68 Pr.69Pr.74 Present Fault RecordThird Most Recent Fault Record Pr.73Pr.77 Parameter Lock and ConfigurationPLC Operation Mode Pr.76Example 1 Pr.78 = 01 Execute one cycle through the PLC program Revision May 2008, ME14, SW Example 2 Pr.78 = 02 Continuously executes program cyclesExample 3 Pr.78 = 03 Execute one cycle step by step Chapter 4 ParametersExample 5 Pr.78 = 01 Execute one cycle through the PLC program Application Note Pr.83 Pr.80Pr.81 Pr.82Communication Protocol Pr.89Transmission Speed Baud rate Pr.922. Data Format 1 +15V 2 GND 3 SG- 4 SG+ 5 NC 6 1 6 for communication8.E.1Pr.92=4 3.2 ASCII mode3. Communication Protocol 8.N.2Pr.92=3RTU mode RTU mode ASCII modeRTU mode ASCII modeASCII Mode ASCII mode RTU ModeRTU mode whilelength-- regcrc = *data++ forj=0j8j++ Content Content void main Pr.95 Pr.93Accel 1 to Accel 2 Frequency Transition Pr.94Pr.100 Pr.97Pr.98 Pr.99R1 Value Pr.103Auto Tune Motor parameters Pr.104Pr.107 Control ModePr.105 Pr.106Pr.112 Pr.113Cooling Fan Control value PID Feedback Terminal SelectionIntegral Time Targeted +Page Page Page External Up/Down Selection Page Page Pr.156 Communication Mode SelectionReserved Pr.1554-85 communication mode, whereas 1 is to select MODBUS modeChapter 4 Parameters Revision May 2008, ME14, SWRevision May 2008, ME14, SW This page intentionally left blankChapter 4 Parameters 4-86Over-current during deceleration Chapter 5 Troubleshooting5.1 Over Current OC Over-current during accelerationChapter 5 Troubleshooting 5.2 Ground Fault5.3 Over Voltage OV Ground fault5.4 Low Voltage Lv Check for correct settings at 5.5 Over Heat OH15.6 Overload Chapter 5 TroubleshootingCheck wiring at R, S and T terminals 5.8 Phase Loss PHL5.7 Keypad Display is Abnormal Check if all connectors are connect correctly and no noise is presentChapter 5 Troubleshooting 5.9 Motor cannot RunChapter 5 Troubleshooting 5.10 Motor Speed cannot be Changedsettings 5.11 Motor Stalls during Acceleration5.12 The Motor does not Run as Expected Chapter 5 Troubleshooting5.14 Environmental Condition 5.13 Electromagnetic/Induction Noise5.15 Affecting Other Machines Chapter 6 Fault Code Information and Maintenance 6.1 Fault Code Information6.1.1 Common Problems and Solutions Corrective Actions Fault NameFault Descriptions Chapter 6 Fault Code Information and MaintenanceFault Descriptions Fault NameFault Descriptions Fault Name6.2 Maintenance and Inspections 6.1.2 ResetAmbient environment MaintenanceMaintenance DANGERKeypad Terminals and wiring of main circuit Transformer and reactor of main circuit Check Items MaintenanceMaintenance Cooling fan of cooling systemRating Appendix A SpecificationsInput Appendix A SpecificationsCharacteristics OperatingEnviromental Appendix A Specifications This page intentionally left blankRevision May 2008, ME14, SW B.1 All Brake Resistors & Brake Units Used in AC Motor Drives Appendix B Accessories9. Definition for Braking Usage ED% B.1.1 Dimensions and Weights for Brake Resistors& Brake Units Dimensions are in millimeterAppendix B Accessories Revision May 2008, ME14, SW Appendix B AccessoriesNote Please select enough current capacity of NFB B.2 Non-fuse Circuit Breaker ChartB.3 Fuse Specification Chart B.4.2 AC Output Reactor Recommended Value B.4 AC Reactor B.4.1 AC Input Reactor Recommended ValueB.4.3 Applications AC motor drive powerlarge-capacity small-capacityB.5 Zero Phase Reactor RF220X00A Diagram ADiagram B AFM GND AVI +10V GND M2 M0 M1 M3 B.6 Remote Controller RC-01RC-01 terminal block wiring connections VFD-M I/O block Appendix B AccessoriesSTOP B.7 PU06 B.7.1 Description of the Digital Keypad VFD-PU06B.7.2 Explanation of Display Message RESETB.7.3 Operation Flow Chart XX-XXXXXXX -ERR- -END B.8 AMD - EMI Filter Cross Reference InstallationGeneral precaution Choose suitable motor cable and precautions The length of motor cable EMI Filter RF022M21BA / RF075M43BA B.8.1 DimensionsAppendix B Accessories EMI Filter RF015M21AA / RF022M43AAB-18 EMI Filter 16TDT1W4S Used on 0.5-3 HP/230V Three Phase ModelsEMI Filter 40TDS4W4B Used on 5-7.5 HP/230V Three Phase Models Appendix B AccessoriesRevision May 2008, ME14, SW B.9 Din Rail B.9.1 Din Rail-DR01 AdapterAppendix B Accessories Units mm inch Models VFD004M21A/23A, VFD007M21A/23A, VFD015M21A/23AB.9.2 Din Rail-DR02 Adapter Related Specification Appendix C How to Select the Right AC Motor Drive≤ the rated current of AC motor drive A C.1 Capacity Formulasn T + n s k s − 1 = P C 1 ⎢ ⎢ n T + I M ⎢1+cosϕ Symbol explanationk ⋅ IM ≤ the rated current of AC motor drive A k ⋅ 3 ⋅VM ⋅ IM ⋅10−3 ≤ the capacity of AC motor drivekVAC.2 General Precaution Parameter Settings NoteSelection Note continuous C.3 How to Choose a Suitable Motortorque% 25% 40% 60% 100Special motors „ To avoid resonances, use the Skip frequenciesMotor torque Power Transmission MechanismAppendix CHow to Select the Right AC Motor Drive This page intentionally left blankRevision May 2008, ME14, SW