Inverter (VFD) Manual

Transcription

1 INV No.EQ-1206-MG-01 EQ Series Electric Chain Hoist (125kg to 1t) Inverter (VFD) Manual Safety precaution DANGER Mandatory When performing parameter change or maintenance for the inverter (VFD), read this Inverter (VFD) Manual and observe the information contained herein. Parameter change and maintenance must be performed by a competent person with experience and expertise of handling the electric chain hoist and inverter (VFD). Or contact your nearest KITO dealer. Failure to comply with the instructions may lead to an electric shock, burns, malfunction, breakdown or inverter (VFD) damage, and even may cause serious or even fatal injury. The product is energized during a parameter change or maintenance of the inverter (VFD). Do not remove the cover of the inverter (VFD). Do not touch the circuit board or electrical components around the inverter (VFD). Prohibited Failure to comply with the instructions may lead to an electric shock, burns, malfunction, breakdown or inverter (VFD) damage, and even may cause serious or even fatal injury. For customers This Inverter (VFD) Manual describes information on how to handle the inverter (VFD). For details on how to handle the EQ electric chain hoist, refer to the Owner's Manual (separate document). (To be continued)

2 Safety precaution Safety precaution General information of handling the dual speed inverter (VFD) hoist General information of handling the dual speed inverter (VFD) hoist The EQ inverter (VFD) controls an important part of safety function such as braking and emergency stop including operation. Please observe the following safety precautions.. Prohibited Mandatory DANGER The inverter (VFD) is designed in KITO exclusive specifications. Do not use other than KITO-authorized inverter (VFD). Do not modify the inverter (VFD). Do not change the wiring. Do not perform a withstand voltage test or measurement of insulating resistance (megger measurement) with the inverter (VFD) connected. Do not shut down the power supply during operation. Do not connect the power supply to the output side of the inverter (VFD). Failure to comply with the instructions may lead to an electric shock, burns, malfunction, breakdown or inverter (VFD) damage, and even may cause serious or even fatal injury. Before performing parameter change or maintenance of the inverter (VFD), read this Inverter (VFD) Manual and observe the information contained herein. Parameter change and maintenance must be performed by a competent person with experience and expertise of handling the electric chain hoist and inverter (VFD). Or contact your nearest KITO dealer. The product is energized during a parameter change or maintenance of the inverter (VFD). Do not remove the cover of the inverter (VFD). Do not touch the circuit board or electrical components around the inverter (VFD). The controller cover heats up during operation. Do not maintain and inspect the electrical components inside for 30 minutes after a stop of operation. When handling the inverter (VFD), provide the protection of Electrostatic Discharge (ESD). Do not perform maintenance and inspection of peripheral parts (excluding the inverter (VFD)) within 5 minutes after de-energizing. Failure to comply with the instructions may lead to an electric shock, burns, malfunction, breakdown or inverter (VFD) damage, and even may cause serious or even fatal injury. Table of Contents Safety precaution...2 Usage...3 Warning display Maintenance Conversion table

3 Usage LED panel The indicator and operation of the LED panel are described below to set parameters and monitor the inverter (VFD). Names and functions Data display (5 digits) Displays frequencies and parameter numbers. UP key Used to select a parameter number, mode, and setting value (increment). Also, it is used to move to the next item or data. LED indicator ESC key (escape) Returns to the previous state before the ENTER key is pressed. RESET key (reset/shift) Moves the digit in parameter value setting. Serves as an Error Reset key upon error detection. RUN indicator Turns on during operation of the inverter (VFD). STOP DOWN key Used to select a parameter number, mode, and setting value (decrement). Also, it is used to return to the previous item or data. ENTER key Pressed to confirm a mode, parameter, or setting value. Used to progress to the next screen. Usage LED panel Inverter (VFD) status When the inverter (VFD) is energized, the LED panel turns on as follows:. Status Name Description Normal The frequency command monitor is displayed in the data display part. turns on. Error Example: Main circuit in low voltage The display varies depending on the error. Refer to "Error diagnosis and measures" on page 16 to take appropriate measures. and turn on. Digital characters on the LED The digital characters are displayed on the LED as corresponding notions in the table next page. In this document, the turned-on/blinked digital characters are illustrated as follows. Turn-on Blinking (To be continued) 3

4 Usage (continued) LED digital characters Character Character Character Character 0 9 I R 1 A J S 2 B K T 3 C L U 4 D M V Usage 5 E N W 6 F O X No display 7 G P Y 8 H Q Z No display * Displayed using 2 digits. LED panel LED indicator Mode Turn-on Blinking Off Upon error detection Inputting a reverse rotation command Upon detection of minor failure Upon detection of an OPE (operation error) Normal Inputting a forward rotation command In the drive mode In the program mode Displaying output frequency (Hz) Description in this document 4

5 RUN indicator Display Mode Turn-on Blinking Short blinking Off During operation During deceleration/ stop Inputting a driving command with the frequency command 0 During deceleration due to an emergency stop During deceleration During a stop due to driving interlock operation During a stop Description in this document Usage LED panel (To be continued) 5

6 Usage (continued) Transitional diagram of LED panel mode Description of key operation Power supply on (DRV turn-on) (Forward rotation selection) (Reverse rotation selection) Usage DRV indicator on (Output frequency display) (Output current display) (Note) "XX" in the manual indicates an actual setting value for the inverter (VFD). (Output voltage display) LED panel (Monitor display) (Verification function) X X X X X X X X X X DRV indicator off * Operation cannot be done. (Setup mode) X X X X X X X X X X X X X (Parameter setting mode) (Auto tuning) X X 6

7 Speed change The hoisting/lowering speed and traversing speed of the electric chain hoist can be set to a desired value by inputting the frequency of the inverter (VFD) as follows. Selecting a conversion table of speed and frequency A conversion table is provided for each capacity. First select an applicable conversion table code from the following table-list, and next find the table from the section of "Conversion table" in accordance with the hoist or trolley voltage, and then select a frequency corresponding to the desired speed. Please note all the speeds in the conversion tables are indicated for reference. Product Code EQ001IS EQ003IS Motor capacity 0.5kW EQ electric chain hoist conversion table list Inverter (VFD) capacity 0.75kW Conversion table code E001IS E003IS EQ005IS 0.75kW 1.5kW E005IS EQ010IS 1.5kW 2.2kW E010IS MR2Q motorized trolley conversion table list Usage Speed change Product Code Motor capacity Inverter (VFD) capacity Conversion table code MR2Q-010IL 0.4kW 0.2kW M010IL MR2Q-010IS 0.4kW 0.2kW M010IS (To be continued) 7

8 Usage (continued) Setting procedure Set a frequency (speed) parameter as follows. CAUTION Prohibited Capacity has an available range of frequencies (upper and lower limits). Any value outside the range cannot be written. A display appears for [S1-38] and [S1-41], but do not alter the setting values. Failure to comply with the instructions may cause injury or property damage. Usage Mandatory Set the speeds in relation to Low speed [d1-01] < High speed [d1-02]. Check the product operation under no load after changing the parameters. Failure to comply with the instructions may cause injury or property damage. Speed change z Changing a parameter value The following procedure shows how to change the speed values as an example. Example: Changing the d1-01(low speed) from 9 Hz to 8 Hz Procedure 1. Turn on the power supply. 2. Press until the setup mode screen is displayed. LED panel Initial screen 3. Press to display the parameter setting screen. 4. Press or until the desired parameter is displayed. Low speed: d1-01, High speed: d1-02 Parameter setting screen 5. When you press, the current setting value is displayed. 6. Press to move the blinking digit to the desired digit. 7. Press, and enter "08.00". 8. Press ENTER to confirm. (The most significant digit blinks.) 9 Hz ("9" blinks.) 8 Hz 9. The display automatically returns to the parameter setting screen (step 4). 10. Press until the display returns to the initial screen. 8

9 Changing acceleration/deceleration time (for only MR2Q motorized trolley) The following shows how to change the acceleration/deceleration time of MR2Q. However please note these of EQ cannot be changed. Setting parameter DANGER Prohibited Do not set the acceleration/deceleration time to any value outside the range, otherwise the trolley braking distance will shorten or lengthen, even resulting in dangerous situations. Failure to comply with the instructions may cause serious or even fatal injury. The parameters are preset and adjustable in accordance with the following information. Acceleration time Deceleration time Parameter No. C1-01 C1-03 C1-07 C1-02 C1-04 C1-08 Preset Unit Adjustable Remark 4.0 Second Second Note: These values are set as acceleration/deceleration time for the range up to 120 Hz. Setting procedure Set an acceleration/deceleration time parameter as follows. Mandatory Check the product operation under no load after changing the parameters. Failure to comply with the instructions may cause property damage. Set the same value to three parameters Set the same value to three parameters Example: The value of 4.0 seconds makes 2.0 seconds of acceleration/deceleration time in the case of the high speed 60Hz. CAUTION Usage Changing acceleration/deceleration time (for only MR2Q motorized trolley) (To be continued) 9

10 Usage (continued) z Changing a parameter value The following procedure shows how to change the acceleration/deceleration time (C1) as an example. Example: Changing the C1-01(acceleration time) from 4.0 sec to 2.0 sec Procedure 1. Turn on the power supply. LED panel Initial screen 2. Press until the setup mode screen is displayed. Usage 3. Press to display the parameter setting screen. 4. Press or until C1-01 is displayed. Parameter setting screen Changing acceleration/deceleration time (for only MR2Q motorized trolley ) 5. When you press, the current setting value is displayed. 6. Press to move the blinking digit to the desired digit. 7. Press, and enter "0002.0". 8. Press ENTER to confirm. 9. The display automatically returns to the parameter setting screen (step 4). 10. Press until the display returns to the initial screen. (The most significant digit blinks.) 4 seconds ("4" blinks.) 2 seconds 10

11 Displaying the number of starts and hoist's on-time The number of starts is split into the higher order and lower order when displayed on the LED panel. Calculate the number of starts based on the displayed information. Displayed information The number of starts is split into the higher order and lower order when displayed, as shown in the following table. No. Name Description U7-01 U7-02 Number of starts (higher order) Number of starts (lower order) U7-03 Hoist's on-time 1000 times of starts of lifting and lowering are displayed as 1. Up to 10,000 are displayed. The maximum indicates 10,000 1,000 = 10 million times. One time of start of lifting and lowering is displayed as 1. Up to 999 are displayed. When it reaches 1000 after 999, the value of U7-01(higher order) is incremented by 1. At the same time, the value of U7-02 (lower order) is reset to 0. One hour of hoist's on-time is displayed as 1. Up to hours are displayed. Note: The maximum value that can be displayed does not indicate the service life. Displaying procedure The following shows the procedure for the hoist's on-time. To display the number of starts, take the following procedure similarly.. Example: Displaying U7-03(hoist's on-time). Procedure 1. Turn on the power supply. 2. Press until the monitor display screen is displayed. 3. Press to display the parameter setting screen, and then press. 4. Press or to display U7-01. LED panel Initial screen Parameter setting screen Usage Displaying the number of starts and hoist's on-time 5. Press and or to set it to U7-03 (driving time). 6. When you press, the current value is displayed. (For monitor parameters, refer to page 25.) 7. Monitoring finishes. To restart operation, press until the display returns to the initial screen. 75 hours 2 seconds (To be continued) 11

12 Usage (continued) Calculating the number of starts Calculate the number of starts based on the displayed information in the higher order and lower order. Example: When "81" is displayed in U7-01, and "567" is displayed in U7-02 Number of starts of lifting and lowering = 81 1, = 81,567 times Hoist's on-time When "122" is displayed in U7-03, the hoist's on-time is 122 hours. Displaying the number of starts and hoist's on-time Usage 12

13 Warning display Inverter (VFD) error codes Types of alarms and errors If the inverter (VFD) or motor runs irregularly, check the alarm/error on the. The types of alarms and errors are as follows: Error Minor failure/warning Operation error The following table "Types of alarms and errors" shows the details. Types of alarms and errors Error Type Minor failure/ warning Operation error Status of the inverter (VFD) in case of an alarm or error When an error is detected, the following states occur. Characters indicating the details of the error are displayed on the LED, and the ALM mode turns on. The inverter (VFD) output is shut down, and the motor stops after a free run. (However, a manner to stop can be preset depending on the sorts of errors.) When minor failure/warning is detected, the following states occur. Characters indicating the details of the minor failure blink on the LED, and the ALM mode blinks. The motor does not stop. s: After detection of minor failure/warning, remove the cause. The inverter (VFD) automatically returns to the original state. An operation error is displayed for a parameter input error, wrong combination of parameters, or failure of the option card. When an operation error is detected, the following state occurs. Characters indicating the details of the error are displayed on the LED. s: After detection of an error, remove the cause of the error by setting the parameter, etc. The inverter (VFD) cannot start until the parameter is set correctly. Warning display Inverter (VFD) error codes Major causes of an inverter (VFD) trip The inverter (VFD) may trip due to overload, voltage drop, high-frequency use, use in high temperature, or mis-phase. Use the product where the operating conditions/environment meet the product specifications. (To be continued) 13

14 Warning display (continued) Error display z Error display When an error occurs, the characters on the "turn on," not "blink." (The ALM mode also turns on.) If they blink, it is a "minor failure/warning." Refer to "Minor failure/warning" on page 15. Name Page Name Page CF Control error 16 CPF03 EEPROM failure 16 to EF1 to EF7 External error (Input terminal S1 to S7) 17 Warning display CPF06 EEPROM data error 16 CPF07 CPF08 Terminal board communication error EEPROM serial communication error 16 GF Ground fault LF Output phase interruption 17 CPF11 RAM error 16 oc Overcurrent 17 CPF12 Flash memory error 16 oh Heat sink overheat 18 Inverter (VFD) error codes CPF13 Watchdog error 16 oh1 Heat sink overheat 18 CPF14 Control circuit error 16 ol1 Motor overload 18 CPF16 Clock error 16 ol2 CPF17 Interrupt error 16 ol3 Inverter (VFD) overload Over-torque detection CPF18 Control circuit error 16 ol4 CPF19 Control circuit error 16 olf RAM error 16 ov Over load detection by the Over load limiter Over load detection by the Over load limiter Main circuit overvoltage Flash memory error 16 PF Main circuit voltage error 19 or CPF20 or CPF21 Watchdog error 16 rr Internal damping transistor error 19 Clock error 16 Uv1 Uv2 Main circuit low voltage Control power supply error CrST Reset disabled during driving command input 16 Uv3 Inrush prevention circuit error 20

15 Minor failure/warning z Minor failure/warning When a minor failure/warning occurs, characters on the blink. If they do not blink, it is an "error." Refer to "L Error display list" on page 14. Name Page EF Forward/reverse command simultaneous input 20 to EF1 to EF7 external error (Input terminal S1 to S7) 20 Hbb Inputting a safety signal 20 HCA Current warning 20 oh Heat sink overheat 20 ol3 Over-torque 1 21 ov Main circuit overvoltage 21 runc Reset during driving command input 21 Operation error and measures z Operation error Uv Main circuit low voltage 22 Name Page ope02 Invalid parameter setting range 22 Warning display Inverter (VFD) error codes (To be continued) 15

16 Warning display (continued) Warning display Inverter (VFD) error codes 16 Error diagnosis and measures z Error and measures Load inertia is high. CF CPF03 CPF06 Control circuit is damaged. CPF07 Failure between the terminal board and control board CPF08 Failure between the terminal board and control board or Hardware error CPF11 CPF12 CPF13 CPF14 CPF16 CPF17 CPF18 CPF19 CPF20 or CPF21 CrST Unstable power supply, big voltage drop, loosened power wiring, loosened wiring of the emergency stop button Error and measures Error name Control error Torque limit took 3 seconds or more in succession during deceleration/stop Adjust the parameters used among C1-02, -04, -06, -08 (deceleration time). Lower the frequency command to the minimum output frequency for deceleration, and then turn off the driving command. Error name EEPROM failure EEPROM does not function. EEPROM data error Data stored in the EEPROM is erroneous. Turn on/off the power supply to check operation. If the error occurs again, replace the inverter (VFD). Error name Terminal board communication error Failure with the terminal board Turn off the power supply of the inverter (VFD), and re-connect the control circuit terminal. Error name EEPROM serial communication error Failure with the EEPROM Turn off the power supply of the inverter (VFD), and re-connect the control circuit terminal. Error name RAM error RAM error Flash memory error ROM (flash memory) error Watchdog error Self diagnosis error Control circuit error CPU failure (malfunction of CPU due to noise) Clock error Reference clock error Interrupt error Timing of internal processing was erroneous Control circuit error CPU failure (malfunction of CPU due to noise) Control circuit error CPU failure (malfunction of CPU due to noise) Any of the following errors occurred. RAM error/flash error/watchdog circuit exception RAM error Flash memory error (ROM error) Watchdog error Clock error Replace the inverter (VFD). Error name Reset disabled while a driving command is being input. A reset signal was input with the driving command being input from an external terminal, etc. Check the power supply voltage and the wiring to the inverter.

17 to EF1 to EF7 The alarm function of the external equipment is operating. Wiring is not correct. GF Motor burnout or insulation degradation occurred. Contact or ground fault occurred due to cable damage. The floating capacitance between the cable and (ground) terminal is high. LF The output cable was broken. The coil (winding) inside the motor was broken. The output terminal is loose. oc Motor burnout or insulation degradation occurred. Contact or ground fault occurred due to cable damage. The load is too high. Malfunction occurred due to noise. Catch of motor lead wire, etc. External error (Input terminal S1 to S7) Error name An external error was inputted from the multifunction contact input terminal (S1 to S7). Remove the cause of the external error, and remove the external error input of the multifunction input. Check if the signal line is connected correctly. Connect the signal line correctly. Error name Ground fault The ground-fault current exceeded about 50% of the inverter (VFD) rated output current in the inverter (VFD) output side. Check the insulating resistance of the motor. Replace the motor if conduction occurs. Check the resistance value between the cable and (ground) terminal. Replace the cable if conduction occurs. Check the motor power cable. Remove the part with a ground fault, and turn on the power supply again. If the cable length is over 100 meters, lower the carrier frequency. Take measures to reduce floating capacitance. Output phase interruption Error name Phase interruption occurred in the inverter (VFD) output side. Check the output cable wiring for a break or wrong wiring. Perform wiring correctly. the motor line resistance. If the coil is broken, replace the motor. Check the terminal for looseness, and re-tighten the terminal. Overcurrent Error and measures Error name An inverter (VFD) output current exceeding the overcurrent detection level was detected. Check the insulating resistance of the motor. Replace the motor if conduction occurs. Check the motor power cable. Remove the part with a ground fault, and turn on the power supply again. Check the resistance value between the cable and (ground) terminal. Replace the cable if conduction occurs. the current flowing through the motor. If the current value exceeds the rated current of the inverter (VFD), reduce the load. Check if the current value changes suddenly. If the current changes suddenly, reduce the load fluctuation. Check the state of the noise measures. Check the wiring of the control circuit as well as wiring and ground wiring of the main circuit, and take sufficient noise measures. If the noise generation source is the electromagnetic contactor, connect a surge absorber to the coil of the electromagnetic contactor. Check the wiring. Warning display Inverter (VFD) error codes (To be continued) 17

18 Warning display (continued) Warning display Inverter (VFD) error codes 18 oh oh1 The ambient temperature is too high. The frequency is too high. The load is too high. The load is too high. Operational failure of electromagnetic brake The load is too high. The load is too high. ol1 ol2 ol3 ol4 olf ov A ground fault of the motor occurred. (A ground-fault current is charging the main circuit capacitor in the inverter (VFD) via the power supply.) The power supply voltage is too high. The damping transistor is broken. The wiring of the damping resistor or damping resistor unit is not correct. Heat sink overheat Error name The heat sink temperature of the inverter (VFD) exceeded the setting value (90 to 100 C). Heat sink overheat The heat sink temperature of the inverter (VFD) exceeded 100 to 110 C. Check the ambient temperature. Remove heating elements nearby, if any. Use it within the rated ambient temperature range. Use it within the rated range. the output current. Reduce the load. Error name Motor overload Error and measures The motor overload protection tripped due to electronic thermal. Check the amount of load. Reduce the load. Check the wiring of the electromagnetic brake. Inverter (VFD) overload Error name The inverter (VFD) overload protection tripped due to electronic thermal. Check the amount of load. Reduce the load. Over-torque detection 1 Error name A motor torque exceeding the setting value was output. Over load detection by the Over load limiter The over load limiter tripped. Over load detection by the Over load limiter The over load limiter tripped. Check the amount of load. Reduce the load. Main circuit overvoltage Error name The main circuit DC voltage exceeded the overvoltage detection level. 200V class: Approx. 410V 400V class: Approx.820V Check the power cable, relay terminal, and motor terminal box of the motor. Remove the part with a ground fault, and turn on the power supply again. Check the voltage. Lower the voltage to the power supply specification of the inverter (VFD). Replace the inverter (VFD). Check the connection to the damping resistor or damping resistor unit for wrong wiring. Perform wiring correctly.

19 Malfunction occurred due to noise. PF Phase interruption of the input power supply occurred. The wiring terminal of the input power supply is loose. The voltage fluctuation of the input power supply is too high. The interphase voltage balance is poor. The main circuit capacitor inside the inverter (VFD) is deteriorated. The damping transistor is broken. Defective inverter (VFD) control circuit rr Improper wiring of braking resistor or braking resistor unit Inverter hardware error Uv1 Phase interruption of the input power supply occurred. The wiring terminal of the input power supply is loose. An error occurred in the power supply voltage. Power failure occurred. The internal circuit of the inverter (VFD) is deteriorated. The power supply voltage drops at an inrush current of the inverter (VFD) due to insufficient capacity of the power supply transformer. Inverter (VFD) internal atmosphere error CHARGE lamp failure (lamp break) Error and measures Check the state of the noise measures. Check the wiring of the control circuit as well as wiring and ground wiring of the main circuit, and take sufficient noise measures. If the noise generation source is the electromagnetic contactor, connect a surge absorber to the coil of the electromagnetic contactor. Error name Main circuit voltage error The main circuit DC voltage fluctuates abnormally other than during regeneration. Check the main circuit power supply wiring for a break or wrong wiring. Perform wiring correctly. Check the terminal for looseness. Re-tighten the terminal. Check the power supply voltage. Take measures for power supply stabilization. Check the power supply voltage, and take measures for power supply stabilization. Check the input power supply for an error. If there is no error in the power supply side and alarms still occur frequently, take the following measure. Replace the inverter (VFD). Error name Internal damping transistor error Operation of the damping transistor is erroneous. Turn on/off the power supply to check if an error occurs. If the error occurs in succession, replace the inverter (VFD). Check that there is no erroneous connection in the wiring of the braking resistor or braking resistor unit. Ensure proper wiring. Turn on/off the power supply to check operation. If the error occurs again, replace the inverter (VFD). Error name Main circuit low voltage The following states occurred when no driving command is inputted (when the inverter (VFD) is not operating). The main circuit DC voltage is below the setting value. 200V class: Approx. 190V 400V class: Approx. 380V. Check the main circuit power supply wiring for a break or wrong wiring. Perform wiring correctly. Check the terminal for looseness. Re-tighten the terminal. Check the voltage. Adjust the voltage to the range of the power supply specification of the inverter (VFD). Check the power supply. Replace the inverter (VFD). Check if an alarm occurs when the wiring breaker, earth leakage breaker (with overcurrent protection function), or electromagnetic contactor is ON. Review the power supply transformer capacity. Check the ambient temperature of the inverter (VFD). Replace the inverter (VFD). Warning display Inverter (VFD) error codes (To be continued) 19

20 Warning display (continued) Warning display Inverter (VFD) error codes 20 Uv2 Inverter (VFD) internal circuit error Uv3 Failure of the contactor of the inrush prevention circuit inside the inverter (VFD) Inverter (VFD) internal atmosphere error z Minor failure/warning Sequence error ~ EF EF1 ~ EF7 The alarm function of the external equipment is operating. The wiring is not correct. Hbb The emergency stop button was pressed. The load is too high. HCA oh Error and measures Control power supply error Error name The control power supply voltage dropped. Turn on/off the power supply to check if an error occurs. If the error occurs in succession, replace the inverter (VFD). Inrush prevention circuit error Error name Failure of the inrush prevention circuit occurred. Turn on/off the power supply to check if an error occurs. If the error occurs in succession, replace the inverter (VFD). Check the ambient temperature of the inverter (VFD). Minor failure/warning and measures Minor failure name Forward/reverse command simultaneous input The forward rotation command and reverse rotation command were inputted simultaneously for 0.5 seconds or more. Review and modify the wiring of the forward/reverse command. Minor failure name External error (Input terminal S1 to S7) An external error was inputted from the multifunction contact input terminal (S1 to S7). Remove the cause of the external error, and turn off the external error input of the multifunction input. Check that the signal line is correctly connected to the external input terminal. Connect the signal line correctly. Safety signal is being inputted. Minor failure name A safety signal was inputted from the input terminal. If not reset by releasing the emergency stop button, check the wiring related to the push button switches (signal line). Minor failure name Current warning The inverter (VFD) output current exceeded the overcurrent warning level (150% of the rated current). the current flowing through the motor. If overload occurs, reduce the load, or increase the inverter (VFD) capacity. Heat sink overheat Minor failure name The inverter (VFD) heat sink temperature exceeded the setting value (90 to 100ºC) (that varies depending on the inverter (VFD) capacity)

21 The ambient temperature is too high. The load is too high. ol3 ov Surge voltage was mixed into the input power supply. A ground fault of the motor occurred. (A ground-fault current is charging the main circuit capacitor in the inverter (VFD) via the power supply.) Malfunction occurred due to noise. runc An error reset was inputted while the driving command was being inputted. Minor failure/warning and measures Check the ambient temperature. Use it at an ambient temperature of 40ºC or lower. Remove heating elements nearby, if any. Over-torque detection 1 Minor failure name A motor torque exceeding the setting value was output continuously. Check the amount of load. Reduce the load. Main circuit overvoltage Minor failure name The main circuit DC voltage exceeded the overvoltage detection level when no driving command is inputted (when the inverter (VFD) is not operating). 200V class: Approx. 410V 400V class: Approx. 820V Install a DC reactor. If the phase advance capacitor is turned on/off or the thyristor conversion device operates within the same power supply system, an abnormal rapid rise (surge) of the input voltage may occur temporarily. Check the power cable, relay terminal, and motor terminal box of the motor. Remove the part with a ground fault, and turn on the power supply again. Check the state of the noise measures. Check the wiring of the control circuit as well as wiring and ground wiring of the main circuit, and take sufficient noise measures. If the noise generation source is the electromagnetic contactor, connect a surge absorber to the coil of the electromagnetic contactor. Reset during driving command input Minor failure name An error reset signal was inputted while the driving command was being inputted. Check if the driving command is inputted from the external terminal or communication card upon an error reset. Turn off the driving command. Warning display Inverter (VFD) error codes (To be continued) 21

22 Warning display (continued) Minor failure/warning and measures Warning display Uv Phase interruption of the input power supply occurred. The wiring terminal of the input power supply is loose. An error occurred in the power supply voltage. Power failure occurred. The power supply voltage drops at an inrush current of the inverter (VFD) due to insufficient capacity of the power supply transformer. Inverter (VFD) internal atmosphere error CHARGE lamp failure (lamp break) Main circuit low voltage Minor failure name The following states occurred when no driving command is inputted (when the inverter (VFD) is not operating). The inrush current suppression contactor inside the inverter (VFD) was released. The control power supply became low. Check the main circuit power supply wiring for a break or wrong wiring. Perform wiring correctly. Check the terminal for looseness. Re-tighten the terminal. Check the voltage. Adjust the voltage to the range of the power supply specification of the inverter (VFD). Adjust the power supply Check if an alarm occurs when the wiring breaker, earth leakage breaker (with overcurrent protection function), or electromagnetic contactor is ON. Review the power supply transformer capacity. Check the ambient temperature of the inverter (VFD). Replace the inverter (VFD). Inverter (VFD) error codes z Operation error and setting error details ope02 A value outside the range was set to the parameter. Operation error and setting error details Invalid parameter setting range Error name A value outside the range was set to the parameter. Check which of the parameters are set erroneously with U1-18 (OPE error parameter). Set the parameter correctly. Note: If two or more operation errors occurred simultaneously, OPE mm is displayed in priority to OPE02. Error reset When an error occurred, restart the inverter (VFD) after removing the cause of the error. To restart the inverter (VFD), turn on/ off the emergency stop button. If the inverter (VFD) is not reset, (1) Turn it on/off several times. (2) If the inverter (VFD) is too hot, cool it down before resetting. 22

23 Restarting the inverter (VFD) after an error If the inverter (VFD) stopped due to an error, check the cause in the following steps, and take measures so that the inverter (VFD) can operate again. If the inverter (VFD) power supply was shut down upon an error DANGER Mandatory Before turning on the power supply of the inverter (VFD), check the following. There is no short circuit between the main circuit terminals R/L1, S/L2, and T/L3. There is no short circuit from the main circuit terminals R/L1, S/L2, and T/L3 to ground. Failure to comply with the instructions may cause serious or even fatal injury, or inverter (VFD) damage. 1. Turn on the power supply of the inverter (VFD). 2. Check the details and cause of the error that has just occurred using the error trace parameter U2-mm. U2-02 (past error) indicates which error caused the shutdown of the power supply. U2-03 to U2-13 indicate the states of the inverter (VFD) when the error occurred (frequency, current, voltage, etc.). U3-01 to U3-10 indicate error history (for 10 errors). For information on how to check the error trace, refer to page Remove the cause of the error. For measures against errors, refer to page 16. If the inverter (VFD) power supply was not shut down upon an error 1. Check the type of the error with the LED operator. 2. Remove the cause of the error. For measures against errors, refer to page Perform an error reset. For an error reset, refer to page 22. Information If the error is still displayed when the power supply is turned on, remove the cause of the error and perform an error reset operation. Warning display Restarting the inverter (VFD) after an error (To be continued) 23

24 Warning display (continued) Checking the error trace The following describes how to check the error trace in the case that the inverter (VFD) detects an error of oc (overcurrent). Procedure 1. Turn on the power supply. 2. Press until the monitor display screen is displayed. Initial screen Warning display 3. Press to display the parameter setting screen. 4. Press or to display U2-02 (past error). 5. Press to confirm. The current error details are displayed. 6. Press to return to the U2-02 screen. Parameter setting screen Overcurrent 7. To monitor the information about U2-03 to 13, press. Data that is helpful for finding the cause of the error can be obtained. Restarting the inverter (VFD) after an error 24

25 U: Monitor The monitor parameter (U parameter) shows parameters that can be monitored in the drive mode. z State monitor: U1 No. Name Description U1-03 Output current Displays the output current. Checks on/off of the input terminal. Indicates that it is monitoring of the input terminal. U1-10 U1-12 Input terminal state Driving state Not used. ON OFF Terminal S1: Forward rotation Terminal S2: Reverse rotation Terminal S3: High speed Checks the state of the inverter (VFD) : ON : OFF Operating Zero speed Inputting reverse rotation Inputting an error reset signal Speed matching Inverter operation ready Detecting minor failure Detecting an error Warning display Restarting the inverter (VFD) after an error (To be continued) 25

26 Warning display (continued) z Error trace: U2 No. Name Description U2-01 Current error Checks the details of the current error. Warning display U2-02 Past error U2-03 U2-04 U2-05 U2-07 U2-11 U2-12 U2-13 command upon an error Output frequency upon an error Output current upon an error Output voltage command upon an error Input terminal state upon an error Output terminal state upon an error Driving state upon an error Checks the details of the error that occurred immediately before the past error. Displays the frequency command value when the "past error" occurred. Displays the output frequency when the "past error" occurred. Displays the output current when the "past error" occurred. Displays the output voltage command when the "past error" occurred. Displays the input terminal state when the "past error" occurred (similar state display as U1-10). Displays the output terminal state when the "past error" occurred (similar state display as U1-11). Displays the driving state when the "past error" occurred (similar state display as U1-12). Restarting the inverter (VFD) after an error z Error history: U3 No. Name Description U3-01 U3-02 U3-03 U3-04 U3-05 U3-06 U3-07 U3-08 U3-09 U3-10 Details of the previous error Details of the error 2 errors before Details of the error 3 errors before Details of the error 4 errors before Details of the error 5 errors before Details of the error 6 errors before Details of the error 7 errors before Details of the error 8 errors before Details of the error 9 errors before Details of the error 10 errors before Displays the details of the previous error Displays the details of the error 2 errors before Displays the details of the error 3 errors before Displays the details of the error 4 errors before Displays the details of the error 5 errors before Displays the details of the error 6 errors before Displays the details of the error 7 errors before Displays the details of the error 8 errors before Displays the details of the error 9 errors before Displays the details of the error 10 errors before 26

27 Maintenance Inverter (VFD) service life Part name Life guideline * Error display upon failure Upon failure Electrolytic capacitor (main circuit) Inrush prevention relay Approx hours Aging components 100,000 times of ON/OFF of the power supply * The life guideline varies depending on the operating conditions. Cautions on wiring "PF": Main circuit voltage error "Uv1": Main circuit constant voltage "Uv3": Inrush prevention circuit error Inverter (VFD) replacement Inverter (VFD) replacement This section describes the functions, specifications, and wiring of the inverter (VFD) main circuit for safe and correct connection. CAUTION Prohibited The B1 and B2 terminals are used for connection of damping resistors. Do not connect anything other than damping resistors. Do not connect anything to the +1, +2, and - terminals. If other device is connected, damage or malfunction of the inverter (VFD) may occur. Main circuit terminal block arrangement The terminal block of the main circuit is located at the following positions. Ground terminal Ground terminal Maintenance Inverter (VFD) life / Cautions on wiring (To be continued) 27

28 Maintenance (continued) z Functions of the main circuit terminal Functions of the main circuit terminal Maintenance Terminal symbol Terminal name Function Reference page R/L1 Main circuit power S/L2 Terminal to connect to the commercial power supply. 27 supply input T/L3 U/T1 V/T2 W/T3 B1 B Inverter (VFD) output (2) Ground Connection for damping resistor "+ 1," "+ 2," and - terminal are not used. (Do not wire them.) Terminal to connect to the inverter (VFD) output motor. 27 Terminal to connect the damping resistor connection damping resistor. No wiring No wiring Terminal for grounding. 200 V class: Class D grounding (ground resistance 100 Ω or less) 400 V class: Class C grounding (ground resistance 10 Ω or less) Wiring of the motor to the power supply terminal of the main circuit This section describes the procedure, cautions, and check points for wiring the main circuit terminal. Cautions on wiring Prohibited CAUTION Do not connect any phase advance capacitor or LC/RC noise filter to the output circuit of the inverter (VFD). If a noise filter is connected in a wrong way, the inverter (VFD) may be damaged. Do not connect the power supply to the output terminal of the inverter (VFD). If you do, the inverter (VFD) will be damaged, resulting in fire. Do not connect damping resistors to any terminal other than B1 and B2. If you do, the damping circuit or inverter (VFD) may be damaged, or the damping resistor may overheat, resulting in fire. 28

29 z Arrangement of the control circuit terminal block The control circuit terminal block is located at the following position. R+ R S+ S IG P1 P2 PC A1 A2 +V AC AM AC MP R+ R S+ S IG S1 S2 S3 S4 S5 S6 S7 HC SC H1 RP MA MB MC P1 P2 PC A1 A2 +V AC AM AC MP S1 S2 S3 S4 S5 S6 S7 HC SC H1 RP MA MB MC Maintenance Cautions on wiring 29

30 Conversion table 230V Class E001IS Set a frequency in the table below to the parameter number as shown in the column of Parameter No. The standard speed ratio of high speed to low speed is preset to 6:1 in the KITO factory, which is adjustable. z Standard ratio of high speed to low speed - 6 : 1 Preset speed Parameter No. Low speed d1-01 High speed d1-02 z Desired ratio Select a low speed or high speed from the table below and find a frequency to be set corresponding to the speed in the table. The value of d1-02 needs to be higher than that of d1-01. Desired speed Parameter No. Low speed Low speed *1) Low speed *1) Select from the table d1-01 High speed High speed *2) High speed *2) Select from the table d1-02 Conversion table * 1) The lower limit speed for Low speed is m/s or 2.8m/min. * 2) The upper limit speed for High speed is m/s or 17.0m/min. E001IS 30 (To be continued)

31 Conversion table 230V Class (countinues) Speed Speed Speed Conversion table E001IS 31

32 230V Class E003IS Set a frequency in the table below to the parameter number as shown in the column of Parameter No. The standard speed ratio of high speed to low speed is preset to 6:1 in the KITO factory, which is adjustable. z Standard ratio of high speed to low speed - 6 : 1 Preset speed Parameter No. Low speed d1-01 High speed d1-02 z Desired ratio Select a low speed or high speed from the table below and find a frequency to be set corresponding to the speed in the table. The value of d1-02 needs to be higher than that of d1-01. Desired speed * 1) The lower limit speed for Low speed is m/s or 1.7m/min. * 2) The upper limit speed for High speed is m/s or 10.0m/min. Parameter No. Low speed Low speed *1) Low speed *1) Select from the table d1-01 High speed High speed *2) High speed *2) Select from the table d1-02 Conversion table E003IS Conversion table Speed Speed Speed

33 230V Class E005IS Set a frequency in the table below to the parameter number as shown in the column of Parameter No. The standard speed ratio of high speed to low speed is preset to 6:1 in the KITO factory, which is adjustable. z Standard ratio of high speed to low speed - 6 : 1 Preset speed Parameter No. Low speed d1-01 High speed d1-02 z Desired ratio Select a low speed or high speed from the table below and find a frequency to be set corresponding to the speed in the table. The value of d1-02 needs to be higher than that of d1-01. Desired speed * 1) The lower limit speed for Low speed is m/s or 1.3m/min. * 2) The upper limit speed for High speed is m/s or 7.6m/min. Parameter No. Low speed Low speed *1) Low speed *1) Select from the table d1-01 High speed High speed *2) High speed *2) Select from the table d1-02 Speed Speed Speed Conversion table E005IS 33

34 230V Class E010IS Set a frequency in the table below to the parameter number as shown in the column of Parameter No. The standard speed ratio of high speed to low speed is preset to 6:1 in the KITO factory, which is adjustable. z Standard ratio of high speed to low speed - 6 : 1 Preset speed Parameter No. Low speed d1-01 High speed d1-02 z Desired ratio Select a low speed or high speed from the table below and find a frequency to be set corresponding to the speed in the table. The value of d1-02 needs to be higher than that of d1-01. Desired speed * 1) The lower limit speed for Low speed is m/s or 1.2m/min. * 2) The upper limit speed for High speed is m/s or 7.1m/min. Parameter No. Low speed Low speed *1) Low speed *1) Select from the table d1-01 High speed High speed *2) High speed *2) Select from the table d1-02 Conversion table E010IS Speed Speed Speed