Delta VFD-L-I Series User Manual Download Page 89

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Chapter 6 Troubleshooting

VFD-L-I Series

6-4

Revision July 2009, SW V1.1

6.4 Over Heat (OH)

AC motor drive overheats

Heat sink overheats

Check if temperature of heat sink
is greater than 90

Yes

Reduce load

Temperature detection malfunctions.
Please contact DELTA.

If cooling fan functions normally

Change cooling fan

Check if cooling fan is jammed

Remove

obstruction

Check if surrounding temperature
is within specification

Adjust surrounding temperature
to specification

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

Is load too large

6.5 Overload

OL1/ O L2

R educ e load or inc rease the pow er of AC motor dri ve

C heck for cor rect s ettings at
Pr. 06-05 and 06-06

Yes

N o

Modify s etting

Is load too large

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

Summary of Contents for VFD-L-I Series

Page 1: ...PLC1 ir...

Page 2: ......

Page 3: ......

Page 4: ...thoroughly before using VFD L I series AC Motor Drive especially the WARNING DANGER and CAUTION notes Failure to comply may result in personal injury and equipment damage If you have any questions ple...

Page 5: ...This page intentionally left blank...

Page 6: ...ies Number Explanation 1 2 1 2 Storage 1 2 Chapter 2 Installation and Wiring 2 1 2 1 Ambient Conditions 2 1 2 2 Installation 2 1 2 3 Dimensions 2 3 2 4 Wiring 2 4 2 4 1 Basic Wiring 2 4 2 4 2 External...

Page 7: ...Solutions 5 1 Chapter 6 Troubleshooting 6 1 6 1 Over Current OC 6 1 6 2 Over Voltage OV 6 2 6 3 Low Voltage Lv 6 3 6 4 Over Heat OH 6 4 6 5 Overload 6 4 6 6 Motor Stalls during Acceleration 6 5 6 7 Th...

Page 8: ...n digital keypad in the VFD L I series It needs to use optional digital keypad VFD PU06 or communication method to modify the parameters 1 1 1 Nameplate Information Example for 0 25HP 230V AC motor dr...

Page 9: ...ht or corrosive fumes Store within an ambient temperature range of 20 C to 60 C Store within a relative humidity range of 0 to 90 and non condensing environment Store within an air pressure range of 8...

Page 10: ...6G max Storage Transportation Temperature 20 C 60 C 4 F 140 F Relative Humidity 90 no condensation allowed Atmosphere pressure 86 106 kPa Vibration 20Hz 9 80 m s2 1G max 20 50Hz 5 88 m s2 0 6G max Pol...

Page 11: ...ible and be able to withstand this high temperature 4 When the AC motor drive is installed in a confined space e g cabinet the surrounding temperature must be within 10 40 C with good ventilation DO N...

Page 12: ...Chapter 2 Installation and Wiring VFD L I Series Revision July 2009 SW V1 1 2 3 2 3 Dimensions Dimensions are in millimeter and inch Unit mm inch...

Page 13: ...tages even if the power has been turned off To prevent personal injury please ensure that the power is turned off and wait ten minutes for the capacitors to discharge to safe voltage levels before ope...

Page 14: ...ed 6 Reserved Main Circuit Power Factory settings FWD STOP REV STOP Common signal Multi function input termi nal s 3 phase induction motor Multi function indication output contacts 120VAC 28VDC 3A Fac...

Page 15: ...r There may be an inrush current during power up Please refer to the following table for the correct fuse selection Magnetic Contactor Please do not use the magnetic contactor as the power switch of t...

Page 16: ...uld have an R C surge absorber Ground resistance should be less than 100 The AC motor drive welding machine and large horsepower motor should ground separately Make sure the power voltage and max supp...

Page 17: ...for circuit protection It is unnecessary to consider phase sequence It is recommended to add a magnetic contactor MC in the power input wiring to cut off power quickly and reduce malfunction when acti...

Page 18: ...M0 M1 GND 120VAC DC 28V 3A Relay Wire gauge 22 12 AWG Wire type Copper only 75 Torque 4 kgf cm 3 5in lbf Wire gauge 28 16 AWG Wire type Copper only 75 Torque 2 kgf cm 1 7in lbf Multi function relay o...

Page 19: ...affected by external noise Use shielded wiring and keep it as short as possible 20m with proper grounding If the noise is inductive connecting the shield to terminal GND can bring improvement If the...

Page 20: ...ation after applying power Make sure that the front cover is correctly installed before applying power Do NOT operate the AC motor drive with humid hands 3 2 Operation Method Please choose a suitable...

Page 21: ...ithout abnormal noise and vibration Check if acceleration and deceleration are smooth If the results of trial run are normal please start the formal run NOTE 1 Stop running immediately if any fault oc...

Page 22: ...t up without the need for re adjustment during operation The 10 groups are as follows Group 0 User Parameters Group 1 Basic Parameters Group 2 Operation Method Parameters Group 3 Output Function Param...

Page 23: ...Display User Defined Unit u 1 Display Counter Value C 2 Display Process Operation 1 tt 3 Display DC BUS Voltage U 4 Display output voltage E 0 00 05 User Defined Coefficient 0 1 to 160 1 0 00 06 Softw...

Page 24: ...0 01 18 Deceleration S Curve 0 to 7 0 Group 2 Operation Method Parameters Pr Explanation Settings Factory Setting NOTE 02 00 Source of Master Frequency Command 0 Reserved 1 Master Frequency determined...

Page 25: ...e Detection 5 Base Block B B Indication 6 Low Voltage Indication 7 Operation Mode Indication 8 Fault Indication 9 Desired Frequency Attained 10 PLC Program Running 11 PLC Program Step Completed 12 PLC...

Page 26: ...Counter Trigger Signal 19 Counter Rese 04 05 Reserved 04 06 Reserved Group 05 Multi Step Speed and PLC Parameters Pr Explanation Settings Factory Setting NOTE 05 00 1st Step Speed Freq 0 00 to 400 00...

Page 27: ...que Detection Level 30 to 200 150 06 04 Over Torque Detection Time 0 1 to 10 0 Sec 0 1 06 05 Electronic Thermal Overload Relay Selection 0 Disable 1 Standard motor 2 Special motor 0 06 06 Electronic T...

Page 28: ...Upper Bound for Integral Control 0 to 100 100 07 11 Integral Value Limit 0 Disable 1 Positive value only 0 07 12 PID Extension Function Bit 0 PID offset Bit 1 Sign number of PID offset Bit 2 Modulatio...

Page 29: ...150 08 08 Skip Frequency 1 Upper Limit 0 0 to 400 Hz 0 0 08 09 Skip Frequency 1 Lower Limit 0 0 to 400 Hz 0 0 08 10 Skip Frequency 2 Upper Limit 0 0 to 400 Hz 0 0 08 11 Skip Frequency 2 Lower Limit 0...

Page 30: ...Chapter 4 Parameters VFD L I Series Revision July 2009 SW V1 1 4 9 Pr Explanation Settings Factory Setting NOTE 3 8 N 2 4 8 E 1 5 8 O 1 6 8 N 2 7 8 E 1 RTU mode 8 8 O 1...

Page 31: ...eter the user can check if the AC motor drive is correct 00 02 Parameter Reset Factory Setting 0 Settings 0 9 No function 10 All parameters are reset to factory settings This setting allows the user t...

Page 32: ...rect password has been input 1 parameters are locked When this parameter displays 1 it means that all the parameters are locked It needs to enter correct password to unlock the parameters When the cha...

Page 33: ...determines the Maximum Output Voltage of the AC motor drive The Maximum Output Voltage setting must be set according to the rated voltage of the motor as indicated on the motor nameplate 01 03 Mid Po...

Page 34: ...up 01 09 Acceleration Time 1 Taccel 1 Unit 0 01 01 10 Deceleration Time 1 Tdecel 1 Unit 0 01 Settings 0 10 to 600 00Sec Factory Setting 1 00 01 11 Acceleration Time 2 Taccel 2 Unit 0 01 01 12 Deceler...

Page 35: ...on can be selected using Multi function Input terminals one of M1 M3 if programmed for Jog 10 When the Jog terminal is closed the AC drive will accelerate from Minimum Output Frequency Pr 01 05 to Jog...

Page 36: ...eration deceleration with linear or S curve way 01 17 Acceleration S Curve 01 18 Deceleration S Curve Settings 0 to 7 Factory Setting 0 These two parameters allow you to configure whether the accelera...

Page 37: ...TOP enabled 2 External terminals Keypad STOP disabled 3 RS 485 serial communication Keypad STOP enabled 4 RS 485 serial communication Keypad STOP disabled 5 Force to run when applying the power When t...

Page 38: ...accordingly figure 1 2 If motor free running is allowed or the load inertia is large it is recommended to select coast to stop For example blowers pumps and mixers figure 2 02 03 PWM Carrier Frequenc...

Page 39: ...Disable 1 Enable This parameter is used to determinate the operation status of motor when the power is turned on as the operation command is from the external terminal and the command is hold When it...

Page 40: ...ication 03 01 Terminal Count Value Unit 1 Settings 0 to 999 Factory Setting 0 The parameter determines the upper limit value of the internal counter The internal counter can be triggered by the extern...

Page 41: ...the over torque is detected Pr 06 03 determines the Over Torque detection level and Pr 06 04 determines the Over Torque detection time 5 Base Block B B Indication the output will be activated when the...

Page 42: ...ed the output will be activated when PLC operation is paused 14 Terminal Count Value Attained the output will be activated when counter reaches Terminal Count Value Pr 03 01 15 Preliminary Counter Val...

Page 43: ...0 to 10V DC Refer to the following examples SET_FRER FEXT Pr 04 02 Pr 04 01 Pr 04 00 Example 1 The following is the most common method It can set parameter 02 00 to 1 0 to 10V signal to set the frequ...

Page 44: ...on of Gain Max operation frequency Potentiometer bias frequency Bias polarity Potentiometer frequency gain Forward motion only Example 4 This example shows a potentiometer range of 0 to 5 Volts Except...

Page 45: ...eration frequency Potentiometer bias frequency Bias polarity Potentiometer frequency gain Forward motion only Max operation frequency Pr 01 00 Pr 01 00 60Hz 4 00 30Hz 4 01 1 4 02 0 4 03 1 Pr 0 Pr 0 Pr...

Page 46: ...nter Trigger Signal 8 Multi Step Speed Command2 19 Counter Reset 9 Jog operation 10 Acceleration Deceleration Speed Inhibit Explanations 0 Parameter Disable Enter value 0 to disable any Multi Function...

Page 47: ...output and display E F on Digital Keypad the motor will free run Normal operation can resume after the External Fault is cleared and the AC drive is reset 6 External Reset Parameter value 6 programs...

Page 48: ...rammed by 9 can only be initiated while the motor is stopped It can change the operation direction during operation and stop the drive by STOP key on the digital keypad or external terminal OFF accord...

Page 49: ...minal is OFF the drive runs according to the acceleration deceleration set by Pr 01 09 and Pr 01 10 When this terminal is ON the drive runs according to the acceleration deceleration set in Pr 01 11 a...

Page 50: ...ernal base block signal Output frequency Output voltage Speed search starts with the reference value Speed search operation Speed synchronization detection 14 15 Increase Decrease Master Frequency Par...

Page 51: ...grams Multi Function Input Terminal M1 Pr 04 04 to increase the AC drive s internal counter When an input is received the counter is increased by 1 This function can be used in the counting applicatio...

Page 52: ...value 19 programs Multi Function Input Terminal M1 Pr 04 04 to reset the counter When this function is activated it will clear the present counter and display C0 The AC motor drive can t count until...

Page 53: ...p by step 4 Continuously execute program cycles step by step This parameter selects the mode of PLC operation for the AC drive The PLC program can be used in lieu of any External Controls Relays or Sw...

Page 54: ...lete PLC cycle To restart the cycle turn the PLC program off and then back on Example 2 Pr 05 03 2 Continuously executes program cycles The diagram below shows the PLC program stepping through each sp...

Page 55: ...z Pr 0 Pr 0 Pr 04 06 16 Pr 03 03 11 Pr 05 03 3 5 04 0 5 05 10 5 06 12 5 07 15 5 08 17 Pr 0 Pr 0 Pr 0 Pr 0 Pr 0 t Frequency Step operation command Time Time Master Frequency Example 4 Pr 05 03 4 Contin...

Page 56: ...Director of Master Frequency during PLC 05 05 Time Duration of Zero Step Speed corresponding parameter 02 00 Unit 1 05 06 Time Duration of 1st Step Speed corresponding parameter 05 00 Unit 1 05 07 Ti...

Page 57: ...xtend the deceleration time with high inertial loads If deceleration time is critical for the application then dynamic brake resistors should be used or the deceleration time should be increased Time...

Page 58: ...utput current output current over current detection level over current stall prevention during operation Time Time 06 03 Over Torque Detection Level Unit 1 Settings 30 to 200 Factory Setting 150 This...

Page 59: ...0 40 60 80 100 120 140 160 180 200 Operation time min Load factor 06 07 Present Fault Record 06 08 Second Most Recent Fault Record 06 09 Third Most Recent Fault Record 06 10 Fourth Most Recent Fault R...

Page 60: ...y 2009 SW V1 1 4 39 Pr 06 07 to 06 12 store records of the six most recent faults that had occurred Use the reset key to reset the drive when the fault no longer exits These six records won t be reset...

Page 61: ...current set in Pr 07 00 07 02 Torque Compensation Unit 1 Settings 0 to 10 Factory Setting 1 This parameter may be set so that the AC drive will increase its voltage output during start up to obtain a...

Page 62: ...Factory Setting 3 Settings 0 Reserved 1 0 to 10V from AVI 2 Reserved 3 Set by Pr 07 19 4 RS 485 communication interface 07 06 Input Terminal for PID Feedback Factory Setting 0 Settings 0 Positive PID...

Page 63: ...y to have over compensation situation 07 10 Upper Bound for Integral Control Unit 1 Settings 0 to 100 Factory Setting 100 This parameter determines the Upper Bound for Integral Control while operating...

Page 64: ...This parameter determines the min output value of the PID feedback signal 07 17 Treatment of the Erroneous Feedback Signals Factory Setting 1 Settings 0 difference of PID setting frequency and feedba...

Page 65: ...ill be activated PID will only be activated when the deviation of target value and feedback value is less than the detection range of soft start 07 22 Detection Range of Soft Start Unit 0 01 Settings...

Page 66: ...ines the duration of time that the DC Braking Current will be applied to the motor during the AC drive start up 08 02 DC Braking Time during Stopping Unit 0 1 Settings 0 0 to 60 0 sec Factory Setting...

Page 67: ...tion continues after momentary power loss speed search starts with the minimum frequency 08 05 Maximum Allowable Power Loss Time Unit 0 1 Settings 0 3 to 5 0Sec Factory Setting 2 0 During a power loss...

Page 68: ...uency It will cause the AC drive to skip operation at these frequency ranges with continuous frequency output 08 14 Auto Restart After Fault Unit 1 Settings 0 to 10 Factory Setting 0 After fault occur...

Page 69: ...t voltage varying between 180 to 200VAC the output voltage may vary between 180 to 200VAC Selecting program value 2 enables the AVR function and also disables the AVR function during deceleration This...

Page 70: ...etting 1 Settings 0 Baud rate 4800 bps bits second 1 Baud rate 9600 bps bits second 2 Baud rate 19200 bps bits second Users can set parameters and control the operation of the AC drive via the RS 485...

Page 71: ...mmunication There is a built in RS 485 serial interface marked RJ 11 on the control terminal block for VFD L I Series The pins are defined above Each VFD L I AC drive has a pre assigned communication...

Page 72: ...10 bit c haract er fram e Even parity Start bit 0 1 2 3 4 5 6 Stop bit 7 bit character 10 bit c haract er fram e Stop bit 7 bit character 7 bit character 2 2 11 bit character frame For 8 bit characte...

Page 73: ...address CMD Command code 8 bit command DATA n 1 DATA 0 Contents of data n x 8 bit data n 25 CRC CHK Low CRC CHK High CRC check sum 16 bit check sum consists of 2 8 bit characters END A silent interva...

Page 74: ...ata Count by byte 4 0 1 Starting data address 2 7 0 7 0 Content of starting address 2102H 0 0 0 Number of data count by word 2 0 D 0 LRC CHK 1 LRC CHK 0 7 Content of address 2103H 0 CR 7 END 1 END 0 L...

Page 75: ...F RTU mode Command message Response message ADR 01H ADR 01H CMD 06H CMD 06H 01H 01H Data address 00H Data address 00H 17H 17H Data content 70H Data content 70H CRC CHK Low 86H CRC CHK Low 86H CRC CHK...

Page 76: ...register Step 4 If the LSB of CRC register is 0 shift the CRC register one bit to the right with MSB zero filling then repeat step 3 If the LSB of CRC register is 1 shift the CRC register one bit to t...

Page 77: ...e buffer The function returns the CRC value as a type of unsigned integer Unsigned int crc_chk unsigned char data unsigned char length int j unsigned int reg_crc 0xFFFF while length reg_crc data for j...

Page 78: ...tage ov 3 Overheat oH 4 Overload oL 5 Overload1 oL1 6 External fault EF 7 Reserved 8 Reserved 9 Current exceeds 2 times rated current during acceleration ocA 10 Current exceeds 2 times rated current d...

Page 79: ...on 2108H Step number of PLC operation 2109H Time of PLC Operation 210AH Counter Value 210BH User defined 210CH User defined unit 0 no decimal 1 two decimal digits 2110H Model type high byte 1 low byte...

Page 80: ...ves the messages but detects a communication error thus no response is returned but there will be error message CExx displayed on the keypad of AC drive The master device will eventually process a tim...

Page 81: ...ne MSR 0x0006 unsigned char rdat 60 read 2 data from address 2102H of AC drive with address 1 unsigned char tdat 60 0 1 0 3 2 1 0 2 0 0 0 2 D 7 r n void main int i outportb PORT MCR 0x08 interrupt ena...

Page 82: ...ossible short circuits 3 Check the wiring connections between the AC motor drive and motor for possible short circuits also to ground 4 Check for loose contacts between AC motor drive and motor 5 Incr...

Page 83: ...ed Current Pr 07 00 Overload 2 Motor overload 1 Reduce the motor load 2 Adjust the over torque detection setting to an appropriate setting Pr 06 03 to Pr 06 05 Over current during constant speed opera...

Page 84: ...y Internal EEPROM can not be read 1 Press RESET key to reset all parameters to the factory settings 2 Return to the factory Drive s internal circuitry abnormal CF3 1 CF3 7 Return to the factory Extern...

Page 85: ...Chapter 5 Fault Code Information VFD L I Series 5 4 Revision July 2009 SW V1 1 This page intentionally left blank...

Page 86: ...ompensation Reduce torque compensation Suitable torque compensation No No No No No Yes Yes Yes Yes Yes Maybe AC motor drive has malfunction or error due to noise Please contact DELTA Can acceleration...

Page 87: ...soperation due to noise P lease contact DELTA Yes Yes Yes Yes Yes Yes No No No No No When OV occurs check if the voltage of DC BUS is greater than protection value Dose OV occur when sudden accelerati...

Page 88: ...disconnection Change defective component and check connection Check if voltage is within specification Make necessary corrections such as change power supply system for requirement Check if there is...

Page 89: ...mally Change cooling fan Check if cooling fan is jammed Remove obstruction Check if surrounding temperature is within specification Adjust surrounding temperature to specification Maybe AC motor drive...

Page 90: ...se contact DELTA Increase torque compensation Check if the torque compensation is suitable Thicken or shorten the wiring between the motor or AC motor drive Reduce load or increase the capacity of AC...

Page 91: ...Chapter 6 Troubleshooting VFD L I Series 6 6 Revision July 2009 SW V1 1 This page intentionally left blank...

Page 92: ...r the display of the digital keypad is normal 4 Whether any irregular vibration or sound occurred during operation 5 Whether the motors are overheating during operation Periodic Inspection Before the...

Page 93: ...and motor Visual inspection Voltage Maintenance Period Check Items Methods and Criterion Daily Half Year One Year Check if the voltage of main circuit and control circuit is correct Measure with multi...

Page 94: ...f there are any loose or missing screws Tighten or replace the screw If machine or insulator is deformed cracked damaged or with changed color change due to overheating or ageing Visual inspection NOT...

Page 95: ...One Year If there is any peculiar smell or insulator cracks due to overheating Visual inspection smell If there is any disconnection Visual inspection or measure with multimeter Transformer and reacto...

Page 96: ...tion If there is any leaked liquid or deformation in capacitors Visual inspection Cooling fan of cooling system Maintenance Period Check Items Methods and Criterion Daily Half Year One Year If there i...

Page 97: ...Chapter 7 Maintenance and Inspections VFD L I Series 7 6 Revision July 2009 SW V1 1 This page intentionally left blank...

Page 98: ...0K Multi Function Inputs 1 RS 485 interface Operation Setting Signal External Signal M0 to M1 can be combined to offer various modes of operation RS 485 serial interface Multi Function Input Signal AC...

Page 99: ...Appendix A Specifications VFD L I Series A 2 Revision July 2009 SW V1 1 This page intentionally left blank...

Page 100: ...Revision July 2009 SW V1 1 B 1 Appendix B Accessories B 1 Remote Controller RC 01 Dimensions are in millimeter Model Name Note Remote controller without wire RC 01 It needs to use shield wire...

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