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Chapter 6 Troubleshooting

VFD-L-I Series

Revision July 2009, SW V1.1

6-3

6.3 Low Voltage (Lv)

Low voltage

Is input pow er cor rect? O r pow er cut,
including momentary pow er loss

Yes

N o

R estart after r eset

C heck if there i s any malfunction
component i n
pow er s upply c ircuit

or disconnection

C hange defec tiv e component
and chec k c onnection

C heck if voltage is
w ithin speci fic ati on

Make nec essary cor rections,
such as change power supply
sy stem for requirement

C heck if there i s heavy load
w ith high s tar t cur rent in the
same pow er sy stem

C heck if Lv occurs w hen
breaker and magnetic
contactor is O N

Suitable
transformer

pow er

capacity

Maybe AC motor drive has m al function.
Please contact D ELTA.

C ontr ol c ircuit has malfunction or
misoper ation due to noise. P leas e
contact D ELTA.

Содержание VFD-L-I Series

Страница 1: ...PLC1 ir...

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Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

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

Страница 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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