Troubleshooting, Over Current OC | Delta Electronics VFD-VE Series

Chapter 5 Troubleshooting

5.1 Over Current (OC)

ocA

Over-current during acceleration

ocd

Over-current during acceleration

OC

Over current

Remove short circuit

Yes

Check if there is any short circuits and

or ground fault

grounding between the U, V, W and motor

No

No

No

Reduce the load or

Yes

increase the power

If load is too large

of AC motor drive

No

No

No

No Reduce torque

No Suitable torque

compensation

compensation

Yes

Yes

Reduce torque

compensation

No

Check if

No

Check if

acceleration time

deceleration time

is too short by

is too short by

load inertia.

load inertia.

Yes

Yes

Maybe AC motor drive

has malfunction or error

due to noise. Please

No

Is load changed

contact DELTA.

suddenly?

Yes

Yes

Can acceleration

Yes

Can deceleration

time be made longer?

time be made longer?

No

No

Reduce load or increase

Increase accel/decel

time

the power of AC motor

drive

Reduce load or increase

Check braking

the power of AC motor

method. Please

drive

contact DELTA

Revision August 2008, 03VE, SW V2.04

5-1

Image 216

Delta Electronics VFD-VE Series manual Troubleshooting, Over Current OC

VFD-VE Series specifications

Delta Electronics VFD-VE Series is a state-of-the-art variable frequency drive (VFD) designed to enhance energy efficiency and improve the operational capabilities of various industrial applications. Renowned for its reliability and performance, the VFD-VE Series serves a diverse range of sectors including manufacturing, HVAC, and water treatment.

One of the primary features of the VFD-VE Series is its advanced control algorithms, which provide precise speed and torque control for AC motors. The series utilizes a vector control method that enables excellent dynamic response and a wide speed range. This is particularly beneficial for applications requiring variable speeds or precise positioning, as it ensures smooth acceleration and deceleration while maintaining optimal performance.

The VFD-VE Series stands out with its Energy Saving Technology. By intelligently optimizing motor control parameters based on the load, the VFD can significantly reduce energy consumption. This built-in functionality not only helps companies save on electricity costs but also contributes to a lower carbon footprint, aligning with global sustainability efforts.

Another key characteristic of the VFD-VE Series is its user-friendly interface. Equipped with a clear and intuitive LCD display, it simplifies monitoring and adjustments, allowing operators to configure settings easily. Additionally, the series supports various communication protocols such as Modbus, EtherCAT, and CANopen, enabling seamless integration with existing control systems for enhanced automation.

The VFD-VE Series is built to withstand harsh industrial environments. Its robust design includes features such as IP20 or IP55 ingress protection ratings, ensuring reliable operation even in dusty or humid conditions. Furthermore, the drives are equipped with advanced thermal management systems that prevent overheating, thereby prolonging the lifespan of the equipment.

Safety is also a priority in the VFD-VE Series, which incorporates multiple safety features such as overvoltage, undervoltage, and overcurrent protection. These safeguards help protect both the drive itself and the connected machinery, minimizing downtime and reducing maintenance costs.

Overall, Delta Electronics VFD-VE Series combines cutting-edge technology, energy efficiency, and robust design to meet the dynamic needs of modern industrial automation. With its advanced features and reliable performance, it is an ideal choice for businesses aiming to optimize their processes and achieve greater energy savings.

Contents

Page Page Page Preface Page Table of Contents Troubleshooting Digital Keypad Operation and Start UpParameters Fault Code Information and Maintenance Appendix a Specifications Appendix B Accessories Appendix C How to Select the Right AC Motor Drive Introduction Example for 5HP/3.7kW 3-phase 230V AC motor drive Receiving and InspectionNameplate Information Model Explanation Series Number Explanation Drive Frames and Appearances5HP/0.75-3.7kW Frame B 15HP/5.5-11kW Frame C Preparation for Installation and Wiring Ambient Conditions 15-30HP/11-22kW Frame D 40-100HP/30-75kW Frame E Operation StorageTransportation Remove Keypad Remove Front Cover Lifting Step Dimensions Introduction Introduction Introduction Frame E This page intentionally left blank Installation and Wiring Wiring RL1 UT1 SL2 VT2 TL3 WT3 For models of VFD-VE Series 20HP/15kW and above External Wiring FWD REV MI1 MI2 MI3 MI4 MI5 MI6 DCM Main Circuit Main Circuit Connection NFB +2/B1Brak e res istor Motor Mains power terminals R/L1, S/L2, T/L3 Terminals +1, +2 for connecting DC reactorOutput terminals for main circuit U, V, W Forward running +2/B1 Brake resistoroptional Brake unitoptional Refer to Appendix B for the useSpec ial braking resis tor/unit Grounding terminals Models Wire Torque Wire Type Main Circuit Terminals Control Terminals Position of the Control Terminals FWD OFFDFM MRA Terminal Terminal Function Factory Settings Sink MCMMO1 MO2 AFM ACMAnalog input terminals AVI, ACI, AUI, ACM AVI/ACI/AUI ACM Frame Torque Wire GeneralAWG 0.3-2.1mm Page Display Message Descriptions External Fault Display Message DescriptionsDisplays the selected parameter Displays the actual stored value of the selected parameter How to Operate the Digital Keypad KPV-CE01 Start To copy parameters Dimension of the Digital Keypad Reference Table for the LCD Display of the Digital KeypadLCD External signal Operation MethodStart-up Preparations before Start-up Communication Communication address definition JOG Trial Run Check following items Digital Keypad Operation and Start Up This page intentionally left blank Parameters Summary of Parameter Settings Parameter can be set during operationGroup 0 System Parameters Time Unit for Unit 0.01 second 00-14 Group 1 Basic Parameters 01-36 1st Output Voltage 230V 0.1V~255.0V Group 2 Digital Input/Output Parameters RUN/STOP, REV/FWD MOA Width of the Desired Group 3 Analog Input/Output Parameters AUI ~200.0% 100.0 Group 4 Multi-Step Speed Parameters Group 5 Motor Parameters Group 6 Protection Parameters Parameters 06-28 Electronic Thermal 30.0~600.0 sec Group 7 Special Parameters Speed Search 07-10 Base-block Speed Stop operation 07-29 High Torque Offset Group 8 High-function PID Parameters 08-32 Tension PID P2 100.0 Feedback Group 9 Communication Parameters 09-20 Block Transfer Group 10 Speed Feedback Control Parameters Explanation Settings Group 11 Advanced Parameters Version Differences Version Crane function Low-voltage during constant speed Version 2.02, the parameters are from Pr.08-00 to Pr.08-15 Version Group 0 System Parameters New settings 44~50 for Pr.02-00~Pr.02-06 and new parameter 02-35 Multi-function Output Setting Reserved 02-43 Zero-speed Level ~65535 rpm Motor 05-03 Rated speed of Motor Setting 08-00 Input Terminal for PID No function Feedback PID Switch Level for Smart ~100.0% according to Pr.08-26 Setting 10-04 ASR Auto Speed Description of Parameter Settings 00-0000-01 Factory setting 00-03Start-up Display Selection 00-04 00-04Content of Multi-Function function Display Settings MI9 MI8 MI7 MI6 MI5 MI4 MI3 MI2 MI1 REV FWD MO2 MO1 MRA 00-06 00-0700-08 No password set or successful input in Pr 00-08 00-07 Factory setting 100% 00-09Energy Saving Gain Unit 00-10 Settings Constant Torque 100% Variable Torque 125% Optimal Acceleration/Deceleration Setting00-12 Constant/Variable Torque Selection 00-14 00-15 00-1600-17 230V/460V Series 00-18 Auto Voltage Regulation AVR Function00-19 Auto Energy-saving Operation Source of the Master Frequency Command Factory setting Stop Method Factory settingSettings Ramp to stop Coast to stop 00-20 00-23 Reverse Operation 01-00 01-0101-35 01-02 01-04 01-3701-38 01-05 Settings 00~600.00Hz 01-4101-42 01-09 FcmdFmi n Pr.01 Pr.01 =Fl ow =Fc md60Hz =Fl ow Flow 01-10 Output Frequency Upper Limit Unit01-11 Output Frequency Lower Limit Unit 01-12 01-1301-14 01-15 01-22 01-2301-24 01-25 01-26 01-27 01-2801-29 01-30 Fout 01-34=0 01-34=1 01-34=2 Fmin 01-07 Frequency command RUN/STOP, REV/FWD 02-00 Control Circuits of the External TerminalFWD/STOP REV/STOP Multi-Function Input Command 02-30 Parameters Settings Functions Descriptions As long as the ON/OFF status is restored, the speed-tracingJOG are included. Refer to Pr -00~04-29 Function could still be operated Command form AVI Force to be AVI Operation speed Command form ACI Force to be ACI Operation speedOFF FOC+PG speed control mode When it is ON, the drive will operate by 1st V/f Enable multi-step Enable position control Execute position controlMotor Frequency 10-19 Feedbac k 10-00 10-01 RUN When this function is enabled, the pulse of PG card will Change from speed command to position command. It is UP/DOWN Key Mode Serial position input02-07 02-09 02-10MI9 MI8 MI7 MI6 MI4 MI3 MI2 MI1 REV 02-13 02-1402-35 02-36 Settings Functions Descriptions Indication Baseblock Active when the warning is detected Settings Functions Descriptions It will be OFF when brake delay time exceeds Pr.02-31 When the error between PID target value and PID feedbackFor error treatment of tension PID feedback Speed Attained Reserved Example of crane function 02-15Multi-output Direction Unit1 02-16 02-17 02-18 02-1902-20 02-21 Brake Delay Time Unit0.001 Settings 000~65.000 SecOutput Current Level Setting for External Terminals Unit1 02-31 02-33 02-3402-43 03-00 03-0103-02 03-03 03-0403-05 03-09 03-1003-11 03-12 03-14 03-1503-16 03-17 ~10V=0~100% ~20mA=0~100%10~10V=0~100% 03-19 03-2203-25 03-20 04-00 04-0104-02 04-03 MI4 MI3 MI2 MI1 05-00 05-01 05-0205-03 05-04 05-06 05-0705-10 05-12 Connection is finished Connection control 05-13 Full-load Current of Motor Unit 1%05-14 05-15 05-17 05-1805-19 05-22 05-24 05-2505-26 05-27 05-29 05-3105-32 06-00 Low Voltage Level Unit06-01 Over-Voltage Stall Prevention Unit 06-02 06-0306-04 06-05 06-06Over-torque Detection Selection OT1 06-07 06-10 06-11 06-12 06-1306-14 06-28 Load 06-1506-16 Parameters Fault code Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Current Volt 06-2306-24 06-25 Revision August 2008, 03VE, SW 103 Fault code Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 External fault input EFACE PTC Positive Temperature Coefficient Detection Selection Connection06-29 06-30 06-31 06-3206-33 06-34 07-00 07-0107-02 07-03 Momentary Power Loss Operation Selection Maximum Allowable Power Loss Time Unit07-06 07-07 07-08 Baseblock Time for Speed Search BB Unit 07-09 Current Limit for Speed Search Unit Auto Restart After Fault Unit 07-1007-11 07-12 Decel. Time Selection for Momentary Power Loss DEB function 07-1307-14 DEB Return Time Unit Status 2 unexpected power off, such as momentary power loss 07-15 07-1607-17 07-18 07-20 07-2107-22 07-23 07-25 07-2607-27 07-28 07-2907-30 07-31 07-36 Emergency Stop EF & Forced Stop Selection 08-01 08-02 08-03 08-0408-05 08-06 Feedback Signal Detection Time Unit 08-08 To 3600.0 sec 08-0908-10 08-11 08-13 08-1408-15 08-16 Line speed, speed mode Open-loop, torque mode 08-22 08-2308-24 08-26 Auto-tuning Tension PID 08-2808-29 Tension PID P1 Unit 08-30 08-3108-32 08-33 DFM DCM DCM AB208-38 08-39 Settings To 3000.0 m/min 08-40Pulse Number for Each Meter Unit 08-41 08-43 08-4408-46 08-47 08-50 08-5108-52 08-54 08-57 08-5808-62 08-64 08-6708-68 08-69 08-71 08-7508-77 08-78 08-83 08-8408-85 08-86 09-00 Communication Address09-01 09-02 Settings Modbus Ascii mode, protocol 7,N,1 Ascii mode09-03 09-04 RTU mode STX Data StartEND 6FH F7H 0FH Content A0HAddress ‘0’ ‘1’ Function ‘3’ Starting data address ‘4’ Jog + Run 00B No function Command F Ascii mode RTU mode C3H A1HCode 09-05 09-0609-07 09-08 09-09 09-1009-11 09-12 09-14 09-1509-16 09-17 Group 10 PID Control 10-00Encoder Pulse Fwdrev 10-02 10-0310-04 10-05 10-09 10-1010-12 10-13 10-1410-15 FWD REV 10-16 10-1710-18 10-19 10-20 10-2110-22 10-23 10-26 10-2710-28 10-29 Control Diagram fo r the Torque + Encoder Speed 11-00 System ControlYES 11-01 11-0211-03 11-11 11-05 Gain Value of Flux Weakening Curve for Motor Unit 11-06 11-0711-08 11-09 11-12 11-1311-14 11-15 11-17 11-18 APR Gain11-19 11-20 Revision August 2008, 03VE, SW 165 Page Troubleshooting Over Current OC Ground Fault Ground faultOver Voltage OV Suitable power Low Voltage Lv Reduce load or increase the power of AC motor drive Over Heat oH1, oH2, oH3Overload OL1/ OL2 Phase Loss PHL Display of KPV-CE01 is AbnormalYes Motor cannot Run Motor Speed cannot be Changed Motor Stalls during Acceleration Motor does not Run as Expected Electromagnetic/Induction Noise Environmental Condition Affecting Other Machines Fault Code Information Common Problems and Solutions Ground fault Not for protection of the user Phase LossProvided for AC motor drive protection Igbt overheating HeatsinkOverheating Motor overheating Isum error Phase errorOC hardware error OV hardware error Password is locked Brake resistor faultConnection switch Error Reset When slip exceedsIt will be displayed Decrease the load if overload Maintenance and Inspections Daily InspectionPeriodic Inspection Voltage Maintenance Check Items Methods and Criterion Keypad Maintenance Check Items Methods and CriterionOne Check Items Methods and Criterion DailyChange of copper plate Visual, aural inspection and smell Or peculiar smell Change fan Overheat This page intentionally left blank Appendix a Specifications ± 5% All Brake Resistors & Brake Units Used in AC Motor Drives ApplicableModel Vfdb Model and No. Torque BR1K2W6P8 Decrease accordingly. Suggested cycle time is one minute Prevent damaging the brake resistor VFD Series Dimensions and Weights for Brake Resistors Dimensions are in millimeter Order P/N BR500W030, BR500W100, BR1KW020, BR1KW075 Specifications for Brake Unit Dimensions for Brake Unit Dimensions are in millimeterinch189.5 200.0 VFDB4132 No-fuse Circuit Breaker Chart Phase Fuse Specification Chart Smaller fuses than those shown in the table are permittedModel Line Fuse Input Output Bussmann P/N VFD007V23A-2 JJN-10 VFD007V43A-2 AC Reactor AC Input Reactor Recommended Value AC Output Reactor Recommended ValueImpedance 37.5 52.5 18.5 67.5 82.5 120 100 150 130 195 Fundamental Max Inductance mH Continuous Amps 37.5 52.5 18.5 67.5 120 100 150 130 195 160 240 Applications for AC Reactor May damage the mains circuit Silicon rectifier Powerreactor AC motor drive Reactor Motor Zero Phase Reactor RF220X00A Diagram aDiagram B Nominal Method DC Choke Recommended Values Input voltage DC Amps Inductance mh Remote Controller RC-01 AFM ACM AVI+10V DCM MI5 FWD REV JOG VFD-VE PG Card for Encoder EMV-PG01X ABZ1PG1 PG2 70m Basic Wiring Diagram wiring 300m Types of Pulse Generators Encoders 12VVoltage Terminal Descriptions Symbols EMV-PG01OTypes of Pulse Generators PG OUT Z1, Z1 Phase or 2-phase input. Maximum 300kP/sec A2, A2 Wire Gauge 25mm2 AWG16 or above Basic Wiring Diagram70m EMV-PG01O Voltage Power source of EMV-PG01L Z1, Z1 Phase input. Maximum 300kP/secEMV-PG01L Output Voltage +5V ±5% 200mA Wire Gauge 25mm2 AWG16 or above Basic Wiring Diagram wiring ABZ1 AB2 Complementary AMD-EMI Filter Cross Reference AC Drives Model Number FootPrint10TDT1W4C 26TDT1W4C Choose suitable motor cable and precautions Saddle on both ends Saddle on one end Insulation level of motor 1000V 1300V 1600V „ For models 5hp/3.7kW and less1000V 1300V 1600V 460VAC input voltage 230VAC input voltage Appendix B Accessories Dimensions are in millimeter and inch Order P/N RF015B21AA / RF022B43AA Order P/N RF022B21BA / RF037B43BA 302 315 Order P/N RF110B43CA Order P/N 10TDT1W4C Order P/N 26TDT1W4C Order P/N 50TDS4W4C Order P/N 100TDS84C Order P/N 200TDDS84C Order P/N 150TDS84C Order P/N 180TDS84C Power Multi-function I/O Extension Card FunctionsTerminals Description Terminals SO1-MCMSO2-MCM MI7~MIB Dimensions Wiring This page intentionally left blank Page Related Specification Capacity FormulasSpeed Time Overload Starting Torque Ratings When one AC motor drive operates one motor When one AC motor drive operates more than one motorStarting capacity= General Precaution ⋅ IM ≤ the rated current of AC motor drive a Parameter Settings Note Selection Note How to Choose a Suitable Motor Standard motor Power Transmission Mechanism Special motorsPole-changing Dahlander motor Motor torque Motor This page intentionally left blank