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Toshiba VF-NC3C Instruction Manual
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Toshiba VF-NC3C Instruction Manual

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INSTRUCTION MANUAL
1.
THIS INSTRUCTION MANUAL IS
SUBJECTED TO BE CHANGED WITHOUT
NOTICE.
2.
THIS INSTRUCTION MANUAL IS FOR
STUDY REFERENCES ONLY.
VF-NC3C
<NOTICE>

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Summary of Contents for Toshiba VF-NC3C

  • Page 1 INSTRUCTION MANUAL VF-NC3C <NOTICE> THIS INSTRUCTION MANUAL IS SUBJECTED TO BE CHANGED WITHOUT NOTICE. THIS INSTRUCTION MANUAL IS FOR STUDY REFERENCES ONLY.
  • Page 2 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Connection Warning  Never disassemble, modify or repair. This can result in electric shock, fire and injury. For repairs, call your sales agency. Disassembly prohibited  Don't stick your fingers into openings such as cable wiring hole and cooling fan covers. This can result in electric shock or other injury.
  • Page 3 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Warning  Ground must be connected securely. If the ground is not securely connected, it could lead to electric shock or fire when a malfunction or current leak occurs. Be Grounded Caution ...
  • Page 4 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Standard connections Warning  Do not connect input power to the output (motor side) terminals (U/T1, V/T2, W/T3). Connecting input power to the output could destroy the inverter or cause a fire. ...
  • Page 5 S/L2 V/T2 Power 3ph-400V class: three-phase 380-460V T/L3 W/T3 circuit -50/60Hz Control circuit Forward Protective function VF-nC3C activation output Reverse Preset-speed 1 Preset-speed 2 Common Operation panel Low-speed signal output RS485 *1: VFNC3C-4004P, 4007P models don’t communication have the PA/+ and the PB terminals...
  • Page 6 Main circuit power supply U/T1 R/L1 S/L2 3ph-400V class: three-phase 380-460V V/T2 Power -50/60Hz T/L3 circuit W/T3 Control circuit VF-nC3C Protective function Forward activation output Reverse Preset-speed 1 Preset-speed 2 Operation panel Common RS485 communication *1: VFNC3C-4004P, 4007P models don’t connector...
  • Page 7 Description of terminals 2.3.1 Power circuit terminals This diagram shows an example of wiring of the main circuit. Use options if necessary.  Power supply and motor connections VF-nC3C Connect the power Connect the motor Power supply cables to R/L1, S/L2, cables to U/T1, V/T2 and T/L3.
  • Page 8 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Power circuit Terminal symbol Terminal function Grounding terminal for connecting inverter. There are 3 terminals in total. R/L1,S/L2,T/L3 400V class: three-phase 380 to 460V-50/60Hz U/T1,V/T2,W/T3 Connect to a (three-phase induction) motor. Connect to braking resistors.
  • Page 9 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Terminal Input / Electrical Function Inverter internal circuits symbol output specifications Common Control circuit's equipotential terminal (2 to Input / terminals) output 5Vdc Output Analog power supply output (permissible load current: 10mA) Multifunction programmable analog input.
  • Page 10 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Terminal Input / Electrical Function Inverter internal circuits symbol output specifications +24V Output 24Vdc power output 24Vdc-100mA Over current protection circuit This terminal can be used as an external OFF:f 1 2 7 =2 0 0 Input 24Vdc input for logic input terminal by changing parameter f127=200.
  • Page 11 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  SINK (Negative) logic/SOURCE (Positive) logic (When the inverter's internal power supply is used) Current flowing out turns control input terminals on. These are called sink logic terminals. The general used method in Europe is source logic in which current flowing into the input terminal turns it Sink logic is sometimes referred to as negative logic, and source logic is referred to as positive logic.
  • Page 12 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  SINK (Negative) logic (When an external power supply is used) The P24 terminal is used to connect to an external power supply or to separate a terminal from other input or output terminals.
  • Page 13 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Selecting the functions of the VI terminal between analog input and logic input The functions of the VI terminal can be selected between analog input and logic input by changing parameter settings ().
  • Page 14 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 3. Operations Caution  Do not touch inverter terminals when electrical power is going to the inverter even if the motor is stopped. Touching the inverter terminals while power is connected to it may result in electric shock. ...
  • Page 15 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE How to Set the Setup Menu Warning  If incorrect setting, the drive may has some damage or unexpected movement. Be sure to set the setup parameter correctly. Mandatory action Set the setup menu according to the logic for control input signals used and the base frequency of the motor connected.
  • Page 16 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Values set by each setup parameter     Title Function (Mainly in (Mainly in North (Mainly in Asia, (Mainly in Japan) Europe) America) Oceania)  Maximum 50.0(Hz) 60.0(Hz) 50.0(Hz) 80.0(Hz)
  • Page 17 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Simplified Operation of the VF-nC3 The procedures for setting operation frequency and the methods of operation can be selected from the following. : (1) Run and stop using the panel keypad Run / Stop (2) Run and stop using external signals to terminal board...
  • Page 18 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 3.2.1 How to run and stop [Example of a  setting procedure] Panel operation LED display Operation Displays the operation frequency (operation stopped).  (When standard monitor display selection = [Operation frequency]) ...
  • Page 19 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE (3) Coast stop Coast stop The standard default is slowdown stop. To make a Motor coast stop, assign "6 (ST)" to an idle terminal. speed Change to =. For coast stop, open the ST-CC when stopping the F-CC motor in the state described at left.The monitor on the inverter at this time will display .
  • Page 20 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Example of operating from the panel (=: save even if power is off) Panel operation LED display Operation Display the operation frequency.  (When standard monitor display selection is set as = [operation frequency]) ...
  • Page 21 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE (2) Setting of frequency using external signals to terminal block (=)  Frequency setting Setting the frequency using external potentiometer ★Potentiometer Setting frequency using the potentiometer (1-10k, 1/4W) Refer to section 6.5.2 in E6581595 for detailed adjustment. : Setting frequency 50 or 60Hz using potentiometer...
  • Page 22 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE How to operate the VF-nC3 Overview of how to operate the inverter with simple examples. Setting the frequency using the setting dial, and run/stop using the Ex.1 panel keypad (1) Wiring PA/+ PC/-...
  • Page 23 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Setting the frequency using the setting dial, and run/stop using the Ex.2 panel keypad (2) Wiring PA/+ PC/- Motor U/T1 R/L1 V/T2 S/L2 W/T3 T/L3 Operation panel Parameter setting Title Function Programmed value ...
  • Page 24 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Setting the frequency using the setting dial, and run/stop using Ex.3 external signals Wiring PA/+ PC/- Motor MCCB R/L1 U/T1 S/L2 V/T2 T/L3 W/T3 Forward Operation panel signal Reverse signal Common Parameter setting Title...
  • Page 25 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Setting the frequency using external signals, run/stop using external Ex.4 signals. Wiring PA/+ PC/- Motor MCCB R/L1 U/T1 S/L2 V/T2 T/L3 W/T3 Forward signal Reverse signal Common Current signal: 420mA Voltage signal: 010V / 05V External potentiometer (Otherwise, input voltage signal between the terminals VI-CC.)
  • Page 26 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Meter setting and adjustment  : Meter selection  : Meter adjustment gain  Function Output of 0 - 1mAdc, 0 (4) - 20mAdc, 0 - 10vdc can be selected for the output signal from the FM terminal, depending no the ...
  • Page 27 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Resolution All FM terminals have a maximum of 1/255.  Example of 4-20mA output adjustment (Refer to section 6.17.2 for details) =1, =0 =1, =20 (mA) (mA) Output Output currrent currrent f692...
  • Page 28 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE [Example of how to adjustment the FM terminal frequency meter] Use the meter's adjustment screw to pre-adjust zero-point. Operation panel action LED display Operation Displays the output frequency. .  (When standard monitor display selection ...
  • Page 29 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Setting the electronic thermal   : Motor electronic-thermal protection level 1   : Electronic-thermal protection characteristic selection 3 : Motor electronic-thermal protection level 2  : Motor 150% overload detection time ...
  • Page 30 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 1) Setting the electronic thermal protection characteristics selection  and motor electronic thermal protection level 1 , 2  The electronic thermal protection characteristics selection  is used to enable or disable the motor overload trip function () and the overload stall function.
  • Page 31 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Output current reduction factor [%]/[A]  ×1.0  ×0.6 30Hz Output frequency (Hz) Note: The motor overload protection start level is fixed at 30Hz. [Example of setting: When the VFNC3-2007P is running with a 0.4kW motor having 2A rated current] Operation LED display Operation...
  • Page 32 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Setting of motor electronic thermal protection level 1  (Same as f173) If the capacity of the motor is smaller than the capacity of the inverter, or the rated current of the motor is smaller than the rated current of the inverter, adjust the electronic thermal protection level 1 ...
  • Page 33 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Note 1: At extremely low speeds of lower than 1 Hz or over 150%, an overload trip () occurs in a short period of time to protect the inverter. Note 2: If an inverter overload occurs with the factor default settings, the inverter is set to lower the carrier frequency automatically and overload tripping is () controlled.
  • Page 34 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Preset-speed operation (speeds in 15 steps)  -  : Preset-speed frequency 1-7  -  : Preset-speed frequency 8-15  Function A maximum of 15 speed steps can be selected just by switching an external logic signal. Multi-speed frequencies can be programmed anywhere from the lower limit frequency ...
  • Page 35 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Preset-speed logic input signal example:  (sink/source switching) =: With sink settings O: ON -: OFF (Speed commands other than preset-speed commands are valid when all are OFF) Preset-speed Terminal ...
  • Page 36 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 3) Using other speed commands with preset-speed command 1: Panel keypad (including remote keypad), Command mode selection 0: Terminal board  2: RS485 communication 1: Setting dial 1 0: Terminal board 0: Terminal block (press in center to 1: Setting dial...
  • Page 37 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 4. Setting parameters Setting and Display Modes The VF-nC3 has the following three display modes. Standard monitor mode The standard inverter mode. This mode is enabled when inverter power goes on. This mode is for monitoring the output frequency and setting the frequency reference value.
  • Page 38 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Status monitor mode The mode for monitoring all inverter status. Allows monitoring of set frequencies, output current/voltage and terminal information.  Refer to chapter 8. The inverter can be moved through each of the modes by pressing the MODE key. ...
  • Page 39 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE How to set parameters There are two types of setting monitor modes: Easy mode and Standard setting mode. The mode active when power is turned on can be selected at  (Registered parameter display selection), and the mode can be switched by the EASY key.
  • Page 40 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Standard setting mode : The mode changes to the Standard setting mode when the EASY key is pressed and "" is displayed. Both basic and extended all parameters are displayed. Basic parameters : This parameter is a basic parameter for the operation of the inverter.
  • Page 41 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 4.2.1 Settings in the Easy setting mode The inverter enters this mode by pressing the MODE key when the Easy setting mode is selected Easy setting mode (Default registered parameters) When you are unsure of something Title Function...
  • Page 42 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 4.2.2 Settings in the Standard setting mode The inverter enters this mode by pressing the MODE key when the Standard setting mode is selected.  How to set basic parameters When you are unsure of something (1) Selects parameter to be changed.
  • Page 43 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  How to set extended parameters Each extended parameter is composed of an ""suffixed with a 3-digit figure, so first select and read out the heading of the parameter you want "" to "". ("": Parameter starting point is 100, "": Parameter starting point is 800.) (5) Select the title of the parameter you want to change.
  • Page 44 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Reset parameters to default settings  Use the  parameter to reset all parameters back to their default settings. To use this function, set parameter = or .  Refer to section 4.3.2 for details. Call saved customer settings ...
  • Page 45 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  How to search and reprogram parameters Panel operation LED display Operation Displays the operation frequency (operation stopped). (When standard monitor display selection is set as =  [operation frequency]) MODE ...
  • Page 46 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 4.3.2 Return to default settings  : Default setting  Function It is possible to return groups of parameters to their defaults, clear run times, and record/recall set parameters. [Parameter setting] Title Function Adjustment range...
  • Page 47 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Default setting 1 ( = ) Setting  to  will return parameters to the standard values that were programmed at the factory. ☆ When  is set,  is displayed for a short time after the settings are configured, and then disappears.
  • Page 48 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE EASY key function  : Registered parameters display selection   : Easy setting mode parameter 1 to 24 • Function It is possible to switch between standard mode and easy setting mode using the EASY key. Up to 24 arbitrary parameters can be registered to easy setting mode.
  • Page 49 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE [How to select parameters] In easy setting mode, only parameters registered to parameters 1 to 24 are displayed in order of registration. The values of the default settings are shown in the table below. [Parameter setting] Title Function...
  • Page 50 E6581795 5. Main parameters Before you operate the inverter, the parameters that you must first program are the basic parameters. Searching for changes using the history function ()  : History function History function (): Automatically searches for 5 latest parameters that are programmed with values different from the standard default setting and displays them in the .
  • Page 51 E6581795 Parameter display MODE Press the MODE key to return to the parameter setting mode  “.”  After that you can press the MODE key to return to the status MODE  monitor mode or the standard monitor mode (display of operation ...
  • Page 52 E6581795  How to use the guidance function Here are the steps to follow to set parameters, using the guidance function. (When the basic setting guidance (auf) is set to 1) Operation panel LED display Operation action Displays the operation frequency (operation stopped). (When standard monitor display selection =...
  • Page 53 E6581795 Table of parameters that can be changed using the guidance function Preset-speed setting Analog input operation Motor 2 switching operation Motor constant setting guidance guidance guidance guidance auf=2 auf=3 auf=4 auf=5         ...
  • Page 54 E6581795 Setting acceleration/deceleration time  ：Automatic acceleration/deceleration  ：Acceleration time 1  ：Deceleration time 1  Function 1) For acceleration time 1  programs the time that it takes for the inverter output frequency to go from 0Hz to maximum frequency . 2) For deceleration time 1 ...
  • Page 55 E6581795 ☆ Setting acceleration/deceleration time (,) in conformance with mean load allows optimum setting that conforms to further changes in load. ☆ Use this parameter after actually connecting the motor. ☆ When the inverter is used with a load that fluctuates considerably, it may fail to adjust the acceleration or deceleration time in time, and therefore may be tripped.
  • Page 56 E6581795 ☆ If the programmed value is shorter than the optimum acceleration/deceleration time determined by load conditions, overcurrent stall or overvoltage stall function may make the acceleration/deceleration time longer than the programmed time. If an even shorter acceleration/deceleration time is programmed, there may be an overcurrent trip or overvoltage trip for inverter protection.
  • Page 57 E6581795 Note 1: The same characteristic can be obtained by setting the V/F control mode selection parameter  to  (automatic torque boost control) and the auto-tuning parameter  to  (auto-tuning).  Refer to section 6.14 Note 2: Setting  to  automatically programs  to . 2) When using vector control (increasing starting torque and high-precision operations) ...
  • Page 58 E6581795 If vector control cannot be programmed..First read the precautions about vector control in section 5.11-6). 1) If the desired torque cannot be obtained ⇒ Refer to section 6.14 selection 2 2) If auto-tuning error "" appears ⇒ Refer to section 6.14 selection 3 ...
  • Page 59 E6581795 Selection of operation mode  : Command mode selection  : Frequency setting mode selection  Function These parameters are used to specify which input device (operation panel, terminal board, or RS485 communication) takes priority in entering an operation stop command or frequency setting command (terminal block VI, setting dial 1 (storing by pressing center of setting dial), RS485 communication, or UP/DOWN from external logic).
  • Page 60 E6581795 [Programmed value] A frequency command is set by means of external signals (VI terminal: 0 - 5/ : Terminal board VI 0 - 10 Vdc, or 0 (4) - 20 mAdc). Frequencies are set by rotating the setting dial on the inverter. Press the center : Setting dial 1 of the setting dial to save the frequency setting value.
  • Page 61 E6581795  Example of run and frequency command switching Command mode and frequency setting mode switching Command mode selection With remote keypad Terminal block RS485 communication  (option) RKP007Z active (CMTB) priority clear Input terminal (SCLC) function Input terminal function :108/109 :48/49 Terminal block...
  • Page 62 E6581795 Meter setting and adjustment  : Meter selection  : Meter adjustment gain Refer to section 3.4 for details. Forward/reverse run selection (Panel keypad)  : Forward/reverse run selection (Panel keypad)  Function Program the direction of rotation of the motor when the running and stopping are made using the RUN key and STOP key on the operation panel.
  • Page 63 E6581795 Maximum frequency : Maximum frequency  Function 1) Programs the range of frequencies output by the inverter (maximum output values). 2) This frequency is used as the reference for acceleration/deceleration time. Output frequency When =80Hz (Hz) ・This function determines the value 80Hz in line with the ratings of the motor and load.
  • Page 64 E6581795 Upper limit and lower limit frequencies : Upper limit frequency : Lower limit frequency  Function Programs the lower limit frequency that determines the lower limit of the output frequency and the upper limit frequency that determines the upper limit of that frequency. Upper limit Lower limit Command frequency (Hz)
  • Page 65 E6581795 5.10 Base frequency  : Base frequency 1  : Base frequency voltage 1  Function Set the base frequency and the base frequency voltage in conformance with load specifications or the base frequency. Note: This is an important parameter that determines the constant torque control area. Base frequency voltage ...
  • Page 66 E6581795 5.11 Selecting control mode  : V/F control mode selection  Function The V/F controls shown below can be selected.  V/F constant  Variable torque  Automatic torque boost control *1  Vector control *1  Energy saving *1 ...
  • Page 67 E6581795 [Setting V/F control mode selection to 3 (sensorless vector control)] Operation panel LED display Operation action Displays the operation frequency. (Perform during operation stopped.) .  (When standard monitor display selection  is set to  [Operation frequency]) The first basic parameter “” (history function) is displayed. MODE ...
  • Page 68 E6581795 2) Setting for fans and pumps Setting of V/F control mode selection  to  (variable torque) This is appropriate for load characteristics of such things as fans, pumps and blowers in which the torque in relation to load rotation speed is proportional to its square. Base frequency voltage ...
  • Page 69 ★ Motor constant must be set If the motor you are using is a 4P Toshiba standard motor and if it has the same capacity as the inverter, there is basically no need to set the motor constant. In any other case, set the following parameters according to the motor's name plate.
  • Page 70 ★ Motor constant must be set If the motor you are using is a 4P Toshiba standard motor and if it has the same capacity as the inverter, there is no need to set the motor constant. In any other case, set the following parameters according to the motor’s name plate.
  • Page 71 E6581795 Base frequency V/f 5-point setting  voltage 1      [V]/[%]  Output frequency [Hz]       Base frequency 1 Note 1: Restrict the value of torque to boost (vb) to 3% or so. Boosting the torque too much may impair the linearity between points.
  • Page 72 E6581795 7) The maximum length of wires between the inverter and motor is 30 meters. If the wires are longer than 30 meters, set standard auto-tuning with the wires connected to improve low-speed torque during sensorless vector control. However the effects of voltage drop cause motor-generated torque in the vicinity of rated frequency to be somewhat lower.
  • Page 73 E6581795 5.13 Setting the electronic thermal t  : Motor electronic-thermal protection level 1 o  : Electronic thermal protection characteristic selection Refer to section 3.5 for details 5.14 Preset-speed operation (speeds in 15 steps) s -  : Preset-speed frequency 1-7 Refer to section 3.6 for details.
  • Page 74 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6. Other parameters Extended parameters are provided for sophisticated operation, fine adjustment and other special purposes. Modify parameter settings as required. Refer to section 11 tables of extended parameters. Input/output parameters 6.1.1 Low-speed signal ...
  • Page 75 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE +24V +24V An example of the connection of the open collector An example of the connection of the relay OUT terminal (sink logic) output terminals  Output terminal setting Default outputs low-speed signal (ON signal) to OUT terminal. This setting must be changed to invert the polarity of the signal.
  • Page 76 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Output frequency [Hz] Designated frequency   Designated frequency Designated frequency   Time [s] Set frequency speed reach signal Between OUT-NO terminals Set frequency speed reach signal: Inverted 6.1.3 Output of set frequency speed reach signal ...
  • Page 77 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE If the detection band value + the set frequency is less than the designated frequency Output frequency [Hz]  +    -  Set frquency speed reach signal Time [s] OUT-NO terminals Set frequency speed reach signal:...
  • Page 78 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE (1) [ =  (Reverse)]: If an F command and an R command are entered simultaneously, the motor will run in the reverse direction. Output frequency [Hz] Set frequency Forward run Time [s] Reverse run Set frequency...
  • Page 79 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.2.2 Changing the functions of VI terminal  : Analog/logic input selection (VI terminal)  Function This parameter allows you to choose between analog input and logic input for the VI terminal. [Parameter setting] Title Function...
  • Page 80 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Terminal function selection 6.3.1 Changing control logic switching  : Sink/source switching  Function Logic input terminal sink logic (minus common)/source logic (plus common) and using an external power supply are switched. [Parameter setting] Title Function...
  • Page 81 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Explanation of the coast stop function Coast stop Motor When ST (Standby) is OFF, coast stops. speed The default setting for ST (Standby) is ON, change the following settings. ...
  • Page 82 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Basic parameters 2 6.4.1 Switching motor characteristics via terminal input  : Base frequency 2  : Base frequency voltage 2  : Torque boost value 2  : Motor electronic-thermal protection level 2 ...
  • Page 83 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Setting of switching terminals To switch to motor 2, assign the following functions to a terminal not being used. It is also possible to switch to acceleration/deceleration 2 (AD2). Refer to section 6.15.1 for details. It is possible to set 3 functions for terminal F and R, and 2 functions for terminal S1 and S2.
  • Page 84 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE V/f 5-point setting f190 : V/f5-point setting VF1 frequency f196 : V/f 5-point setting VF4 frequency f191 : V/f 5-point setting VF1 voltage f197 : V/f 5-point setting VF4 voltage f192 : V/f 5-point setting VF2 frequency f198 : V/f 5-point setting VF5 frequency f193 : V/f 5-point setting VF2 voltage...
  • Page 85 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.6.2 Setting frequency command characteristics  : Analog/logic input selection (VI terminal)  : VI Input point 1 setting  : VI Input point 1 frequency  : VI Input point 2 setting ...
  • Page 86 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 1) 0-10Vdc voltage input adjustment VI termin al  Po in t settin gs a dj ust the  fre qu en cy co mma nd fo r the 50 ( H z) vo lta ge inp u t.
  • Page 87 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.6.3 Setting of frequency with the input from an external logic  : External logic input - UP response time  : External logic input - UP frequency steps  : External logic input - DOWN response time ...
  • Page 88 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Adjustment with continuous signals (Operation example 1) Set parameters as follows to adjust the output frequency up or down in proportion to the frequency adjustment signal input time: Panel frequency incremental gradient = / setting time Panel frequency decremental gradient = /...
  • Page 89 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE <<Sample sequence diagram 2: Adjustment with pulse signals>> Forward / reverse command UP signal DOWN signal Set frequency clearing signal Upper limit frequency Command frequency(Hz) (The dotted lines represent effective output frequencies) ...
  • Page 90 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.6.4 Fine adjustment of frequency setting signal  : VI voltage bias  : VI voltage gain  Function These parameters are used to fine adjust the relation between the frequency setting signal input through the analog input terminal VI and the output frequency.
  • Page 91 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Operation frequency 6.7.1 Starting frequency  : Starting frequency setting  Function The frequency set with  is put out as soon as operation is started. Use the  parameter when a delay in response of starting torque according to the acceleration/deceleration time is probably affecting operation.
  • Page 92 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE DC braking  : DC braking starting frequency  : DC braking current  : DC braking time  Function A large braking torque can be obtained by applying a direct current to the motor. These parameters set the direct current to be applied to the motor, the application time and the starting frequency.
  • Page 93 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Time limit for lower-limit frequency operation  : Time limit for lower-limit frequency operation  : Hysteresis for lower-limit frequency operation  Function If operation is carried out continuously at a frequency below the lower-limit frequency () for the period of time set with , the inverter will automatically slow down the motor to a stop.
  • Page 94 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.10 Jump frequency - Avoiding frequency resonance  : Jump frequency  : Jumping width  Function Resonance due to the natural frequency of the mechanical system can be avoided by jumping the resonant frequency during operation.
  • Page 95 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.12 PWM carrier frequency  : PWM carrier frequency  : Random mode  : Carrier frequency control mode selection  Function 1) The  parameter allows the tone of the magnetic noise from the motor to be changed by switching the PWM carrier frequency.
  • Page 96 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Reduction of rated current. 55℃ or less *1 50℃ or less 55℃*1 Ambient temperature Carrier frequency 2-4kHz 4.1-12kHz 4.1-12kHz VFnC3C-4004P 1.5A 1.2A 1.1A VFnC3C-4007P 2.3A 1.5A 1.2A VFnC3C-4015P 4.1A 4.0A 3.6A VFnC3C-4022P 5.5A...
  • Page 97 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.13 Trip-less intensification 6.13.1 Auto-restart (Restart of coasting motor)  : Auto-restart control selection Caution  Stand clear of motors and mechanical equipment If the motor stops due to a momentary power failure, the equipment will start suddenly when power is restored.
  • Page 98 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 2) Restarting motor during coasting (Motor speed search function) Motor speed Forward / reverse ST-CC Setting  to  or : This function operates after the ST-CC terminal connection has been opened first and then connected again.
  • Page 99 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.13.2 Regenerative power ride-through control (Deceleration stop)  : Regenerative power ride-through control (Deceleration stop)  Function 1) Regenerative power ride-through control: This function continues the operation of the motor by utilizing motor regenerative energy in the event of momentary power failure.
  • Page 100 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.13.3 Retry function  : Retry selection (number of times) Caution  Do not go near the motor in alarm-stop status when the retry function is selected. The motor may suddenly restart, which could result in injury. ...
  • Page 101 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.13.4 Dynamic (regenerative) braking - For abrupt motor stop f304 : Dynamic braking selection f308 : Dynamic braking resistance f309 : Allowable continuous braking resistance f626 : Over-voltage stall protection level ...
  • Page 102 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 1) Connecting an external braking resistor (optional) Separate-optional resistor (with thermal fuse) Braking resistor (optional) MCCB PA/+ Motor U/T1 R/L1 Three-phase main circuits V/T2 S/L2 Power supply W/T3 T/L3 Inverter Connecting thermal relays and an external braking resistor TH-R Braking resistor (optional)
  • Page 103 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE [Parameter setting] Title Function Setting f304 Dynamic braking selection f305 Overvoltage limit operation f308 Dynamic braking resistance Proper value f309 Dynamic braking resistor capacity Proper value f626 Over-voltage stall protection level 136 (%) ...
  • Page 104 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 3) Minimum resistances of connectable braking resistors The minimum allowable resistance values of the externally connectable braking resistors are listed in the table below. Do not connect braking resistors with smaller resultant resistances than the listed minimum allowable resistance values.
  • Page 105 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.13.5 Avoiding overvoltage tripping  : Overvoltage limit operation f626 : Over-voltage stall protection level  Function These parameters are used to keep the output frequency constant or increase it to prevent overvoltage tripping in case the voltage in the DC section rises during deceleration or varying speed operation.
  • Page 106 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.13.6 Output voltage adjustment/Supply voltage correction  : Base frequency voltage 1  : Supply voltage correction (output voltage limitation)  Function Base frequency voltage1 The  parameter adjusts the voltage corresponding to the base frequency 1  so that no voltage exceeding the ...
  • Page 107 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE [: No voltage compensation/output voltage limited] [: Voltage compensation/output voltage limited] Input voltage  High Input voltage Input voltage High  Output frequency   Output frequency * The above applies when V/F control mode selection parameter ...
  • Page 108 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6. 14 Braking function 6.14.1 Brake sequence control f340 : Creeping time 1 f345 : Brake release time f341 : Braking mode selection f346 : Creeping frequency f343 : Torque bias input f347 : Creeping time 2 •...
  • Page 109 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Creepinjg frequency Output frequency  Torque control Speed control [Hz] Starting frequency Time [s]   Torque  Issue of torque command Braking request Braking signal Brake release request Braking operation RUN command ...
  • Page 110 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE [Parameter setting] Title Function Adjustment range Default setting  PID control waiting time 0-2400 [s]  PID control 0: Disabled, 1: Enabled  Proportional gain 0.01-100.0 0.30  Integral gain 0.01-100.0 0.20 ...
  • Page 111 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 3) Setting PID control Set "" in the extended parameter  (PID control) Set parameters (acceleration time), and  (deceleration time) to the system fitting values. To limit the output frequency, set parameters  (upper limit frequency) and  (lower limit frequency).
  • Page 112 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Assign an input terminal function 52 (PID integral/derivative) to an input terminal, when that input terminal is ON, it is possible to calculate integral/derivative amounts always as 0 (zero). ...
  • Page 113 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6) Setting the time elapsed before PID control starts You can specify a waiting time for PID control to prevent the inverter from starting PID control before the control system becomes stable, for example, after start-up. The inverter ignores feedback input signals, carries out operation at the frequency determined by the amount of processing for the period of time specified with ...
  • Page 114 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.16 Setting motor constants  : Auto-tuning  : Motor rated current  : Slip frequency gain  : Motor no-load current  : Automatic torque boost value  : Motor rated speed ...
  • Page 115 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE [Selection 2: Setting vector control and auto-tuning independently] Set vector control, automatic torque boost, and energy saving and auto-tuning individually. After setting  (V/F control mode selection), auto-tuning occurs. Set the auto-tuning parameter  to  (Auto-tuning enabled) [Parameter setting] Title Function...
  • Page 116 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Setting procedure Adjust the following parameters: : Set the compensation gain for the slipping of the motor. A higher slip frequency reduces motor slipping correspondingly. After setting , set  to adjust in detail. Be careful as inputting a value larger than necessary causes hunting and other unstable operation.
  • Page 117 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.17 2nd acceleration/deceleration 6.17.1 Switching acceleration/deceleration time 1 & 2  :Acceleration time 2  :Deceleration time 2  : Acceleration/deceleration 1 & 2 switching frequency  Function Acceleration and deceleration times can be set individually. Select from the following two methods for selecting and switching.
  • Page 118 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 2) Switching according to terminal (switching acceleration/deceleration time by external terminal) Output frequency [Hz] Time [s] Second acceleration/deceleration selection signal (1) Acceleration at ramp of (3) Acceleration at ramp of acceleration time ...
  • Page 119 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 1) Linear acceleration/deceleration Normal acceleration/deceleration Output frequency [Hz] pattern. Max. frequency  Normally, this setting can be used. Time [s]     2) S-pattern acceleration/deceleration 1 Used when necessary to accelerate or decelerate in a short period of time up to a high-speed area over 60 Hz, and to moderate shock at acceleration.
  • Page 120 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.18 Protection functions 6.18.1 Setting motor electronic thermal protection  : Motor electronic-thermal protection level 1 173 : Motor electronic-thermal protection level 2  : Motor 150% overload detection time ...
  • Page 121 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE [Parameter setting] Title Function Adjustment range Default setting  Stall prevention level 1 10-199 (%) / (A), 200: Disabled  Stall prevention level 2 [Display during operation of the stall prevention] During an ...
  • Page 122 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE ■ Flow of operation when = Reset the Completion of reset Normal operation inverter by panel or terminal Occurrence of a operation. The relay trips again. trip If the cause of the ・Display of the cause trip is not ・Failure signal FL...
  • Page 123 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 2) Emergency stopping from the operation panel Emergency stopping from the operation panel is possible by pressing the STOP key on the panel twice while the inverte r is not in the panel control mode. (1) Press the STOP key ......
  • Page 124 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.18.6 Input phase failure detection  : Input phase failure detection selection  Function This parameter detects inverter input Phase failure. If the abnormal voltage status of main circuit capacitor persists for few minutes or more, the tripping function and the FL relay will be activated. Trip display is .
  • Page 125 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE [Parameter setting] Function Adjustment range Default setting Title  Small current detection hysteresis 1-20 (%) 0: Alarm only  Small current trip/alarm selection 1: Tripping  Small current detection current 0-150 (%) / (A) ...
  • Page 126 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE [Parameter setting] Function Adjustment range Default setting Title 0: Each time (standard pulse) 1: Only one time after power on Detection of output short-circuit at (standard pulse)  start-up 2: Each time (short pulse) 3: Only one time after power on (short pulse) 6.18.9 Over-torque trip...
  • Page 127 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE <Example of operation> 1) Output terminal function: 28 (OT) Over-torque detection = (Alarm only) Over-torque signal output less than    － Torque (%) Time [sec] When  =  (tripping), the inverter will trip if over-torque lasts for the period of time set with .
  • Page 128 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.18.11 Cumulative operation time alarm setting  : Cumulative operation time alarm setting  Function This parameter allows you to set the inverter so that it will put out an alarm signal after a lapse of the cumulative operation time set with .
  • Page 129 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.18.13 VI analog input break detection  : VI analog input break detection level  Function The inverter will trip if the VI value remains below the specified value for about 0.3 seconds. In such a case, ""...
  • Page 130 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.18.15 Number of starting alarm f648 : Number of starting alarm  Function Counting the number of starting, when it will reach the value of parameter f648 setting, it will be displayed and alarm signal is output.
  • Page 131 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.19 Adjustment parameters 6.19.1 Pulse train output for meters  : Logic output/pulse train output selection (OUT)  : Pulse train output function selection (OUT)  : Maximum numbers of pulse train ...
  • Page 132 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.19.2 Calibration of analog output  : Analog output signal selection  : Inclination characteristic of analog output  : Analog output bias  Function Output signal from the FM terminal can be switched between 0 to 1mAdc output, 0 to 20mAdc output, and 0 to 10Vdc output with the ...
  • Page 133 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.20 Operation panel parameter 6.20.1 Prohibition of key operations and parameter settings f700 : Parameter protection selection f730 : Panel frequency setting prohibition (fc) f731 : Disconnection detection of remote keypad f732 : Local/remote key prohibition of remote keypad f733 : Panel operation prohibition (RUN key) f734 : Panel emergency stop operation prohibition...
  • Page 134 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Title Function Adjustment range Default setting 0: Password unset f738 Password setting (f700) 1-9998 9999: Password set 0: Password unset f739 Password verification 1-9998 9999: Password set  Assigning the parameter editing permission (function number 110, 111) to any logic input terminal, parameters can be written regardless of the setting of f700.
  • Page 135 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE ■Prohibit changing parameter settings with logic input Set "Parameter editing prohibited" for any input terminal. Activating the "Parameter editing prohibited" function prevents changes to all parameters. The following table shows an example of setting input terminal S2. Title Function Adjustment range...
  • Page 136 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.20.2 Changing the unit (A/V) from a percentage of current and voltage  :Current/voltage unit selection  Function These parameters are used to change the unit of monitor display. %  A (ampere)/V (volt) Current 100% = Rated current of inverter Input voltage 100% = 400Vac Output voltage 100% = 400Vac...
  • Page 137 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.20.3 Displaying the motor or the line speed  : Free unit display scale  Function The frequency or any other item displayed on the monitor can be converted freely into the rotational speed of the motor, the operating speed of the load, and so on.
  • Page 138 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE [Parameter setting] Title Function Adjustment range Default setting 0.00: Disabled (display of frequency)  Free unit display scale 0.00 0.01-200.0 The  converts the following parameter settings:  Free unit Frequency monitor display Operation frequency command, Operation frequency, PID feedback, Frequency command value After correction, Operation frequency...
  • Page 139 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.20.5 Changing the initial display of the panel  : Initial panel display selection  : Initial remote keypad display selection  Function This parameter specifies display format while power is ON. ...
  • Page 140 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 6.20.8 Parameter registration to easy setting mode  -  : Easy setting mode parameter 1 to 24 Up to 24 arbitrary parameters can be registered to easy setting mode. ...
  • Page 141 1: Trip (Coast stop) 2: Trip (Deceleration stop) 0: Valid at any time Communication time-out 1: Communication selection of  fmod or cmod detection condition 2: 1  during operation Selection of communication 0: Toshiba inverter protocol  protocol 1: ModbusRTU protocol F-68...
  • Page 142 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Title Function Adjustment range Default setting 0: No selection 1: Command information  Block write data 1 2: - 3: Frequency setting 4: Output data on the terminal board  Block write data 2 5: Analog output for communication 0: No selection...
  • Page 143 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Communication function settings Commands and frequency settings are given priority by communication. (Prioritized by commands from the panel or terminal block.) Thus, command and frequency settings from communication are activated, regardless of the command mode selection () or frequency settings mode selection settings ().
  • Page 144 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Configuration of RS485 connector and wiring Inverter viewed RS485 Name Description from bottom number communication For factory Do not connect (SG) Ground Same phase RXD+/TXD+ reception data Using Anti-phase RXD-/TXD- reception data Pin-1...
  • Page 145 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Connection example when using the computer link function <Independent communication> Perform computer-inverter connection as follows to send operation frequency commands from the host computer to inverter No. 3: : Wiring : Data (Host →...
  • Page 146 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE <Broadcast communication> When sending an operation frequency command via a broadcast from the host computer : Wiring : Data (Host → INV) Host computer : Response data (INV → Host) ～...
  • Page 147 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 7. Operations with external signal Operating external signals You can control the inverter externally. The parameter settings differ depending upon your method of operation. Determine your method of operation (the operational signal input method, speed command input method) before using the procedure below to set the parameters.
  • Page 148 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Applied operations by an I/O signal (operation from the terminal block) Input terminal sink and source logic are set according to the selection on the setup menu. (Refer to section 3.1) 7.2.1 Input terminal function This function is used to send a signal to the input terminal from an external programmable controller to operate or...
  • Page 149 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Connecting For logic input a With sink settings logic switch a Inverter Operates by short circuiting Input terminal between the input terminal and CC (common). Use for forward rotation, reverse rotation, and multi-stage speed.
  • Page 150 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Usage example 1 ··· 3-wire operation (one-push operation) Use the 3-wire operation function to operate the inverter, maintaining operation without using the sequence circuit by inputting an external signal (reset logic signal). Forward run Forward run (F) : Pressing forward run (F) rotates forward at the specified frequency command value.
  • Page 151 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Note 5) Be aware that DC braking continues even if a startup signal is input during DC braking. Note 6) Only F and R maintain HD (operation hold). When using F or R in combination with other functions, be aware that the other functions do not hold.
  • Page 152 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  List of logic input terminal function settings Parameter Parameter programmed value programmed value Function Function Positive Negative Positive Negative logic logic logic logic       ...
  • Page 153 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 7.2.2 Output terminal function (sink logic) This function is used to output a variety of signals to external devices from the inverter. With the logic output terminal function, you can select from multiple output terminal functions. Set two types of functions for the OUT terminal and then you can output when either one or both of them is ON.
  • Page 154 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Assign two types of functions to the output terminal (OUT) Terminal Title Function Adjustment range Default setting symbol Output terminal 4 (Low-speed detection  selection 1A signal) 0 - 255 Output terminal ...
  • Page 155 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  List of output terminal function settings <Explanation of terminology>  Alarm …... Alarm output when a setting has been exceeded.  Pre-alarm …... Alarm output when the inverter may cause a trip during continued operation. List of detection levels for output terminal selection Parameter programmed Parameter...
  • Page 156 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Speed instruction (analog signal) settings from external devices You can select from voltage input (0 to 10V, 0 to 5V), and current input (4 to 20mA) for an analog input terminal (VI).
  • Page 157  Run and stop settings MCCB MCCB Motor Motor You can switch between forward run (F) You can switch between forward run (F) VF-nC3C VF-nC3C U/T1 U/T1 and reverser run (R), and run/stop with and reverser run (R), and run/stop with R/L1...
  • Page 158 4 - 1000 ms * Depends upon the setup menu settings. Refer to section 11.5.  Run and stop settings Motor You can switch between forward run (F) and MCCB VF-nC3C U/T1 reverser run (R), and run/stop with external R/L1 Power V/T2 signals.
  • Page 159 *Depends upon the setup menu settings. Refer to section 11.5.  Run and stop settings Motor You can switch between forward run (F) MCCB U/T1 and reverser run (R), and run/stop with R/L1 VF-nC3C Power V/T2 external signals. S/L2 Supply T/L3 W/T3 ...
  • Page 160 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 8. Monitoring the operation status Flow of status monitor mode Status monitor mode Flow of monitor as following About Setting monitor mode 20 kinds of data   MODE MODE ☆...
  • Page 161 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Status monitor mode 8.2.1 Status monitor under normal conditions In this mode, you can monitor the operation status of the inverter. To display the operation status during normal operation: Press the MODE key twice. Setting procedure (eg.
  • Page 162 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE (Continued) Panel Communic Item displayed Description operated display ation No. The ON/OFF status of each of the control signal input terminals (F, R, S1, S2, VI) is displayed in bits. }}i}i ON: ...
  • Page 163 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE (Continued) Panel Communic Item displayed Description operated display ation No. Parts replacement The ON/OFF status of each of the cooling fan, alarm information circuit board capacitor, main circuit capacitor of parts replacement alarm or cumulative operation time are displayed in bits.
  • Page 164 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE (Continued) Panel Item displayed LED display Description operated The inverter output voltage when the trip occurred is  Output voltage displayed. (%/V) The ON/OFF statuses of the control input terminals ( F, R, S1, S2, V I ) are displayed in bits.
  • Page 165 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Display of trip information 8.3.1 Trip code display If the inverter trips, an error code is displayed to suggest the cause. Since trip records are retained, information on each trip can be displayed anytime in the status monitor mode. Refer to section 13.1 for details about trip code display.
  • Page 166 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE (Continued) Panel Communic Item displayed Description operated display ation No. The ON/OFF statuses of the control input terminals (F, R, S1, S2, VI) are displayed in bits. }}i}i ON:  Note 4 a }}i}i OFF: ...
  • Page 167 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE (Continued) Panel Communic Item displayed Description operated display ation No. The ON/OFF status of each of the cooling fan, circuit board capacitor, main circuit capacitor of parts replacement alarm or cumulative operation time are displayed in bits.
  • Page 168 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Output voltage: The voltage displayed is the output command voltage. 100% reference value is 400V on 400V models. This unit can be switched to V (volts).  Torque current: The current required to generate torque is calculated from the load current by vector operations.
  • Page 169 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 9. Peripheral devices Warning  When using switchgear for the inverter, it must be installed in a cabinet. Failure to do so can lead to risk of electric shock and can result in death or serious injury. Mandatory action ...
  • Page 170 The recommended molded case circuit breaker (MCCB) must be connected to primary side of each inverter to protect the wiring system. Note 1: Models made by Toshiba Industrial Products Sales Corporation are shown. Note 2: Be sure to attach a surge killer to the exciting coil of the relay and the magnetic contactor.
  • Page 171 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Installation of a magnetic contactor If using the inverter without installing a magnetic contactor (MC) in the primary circuit, use an MCCB (with a power cut off device) to open the primary circuit when the inverter protective circuit is activated. When using an optional brake module, install a magnetic contactor (MC) or molded-case circuit breaker with a power cutoff device on the primary power supply of the inverter, so that the power circuit opens when the failure detection relay (FL) in the inverter or the externally installed overload relay is actuated.
  • Page 172 () and appropriate to the motor used should be installed between the inverter and the motor.  When using a motor with a current rating different to that of the corresponding Toshiba general-purpose motor  When operating a single motor with an output smaller than that of the applicable standard motor or more than one motor simultaneously.
  • Page 173 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Optional external devices The following external devices are optionally available for this inverter series. Power supply Molded-case circuit breaker MCCB Magnetic contactor (1) Input AC reactor (ACL) Parameter writer : RKP002Z Remote keypad : RKP007Z Remote control panel...
  • Page 174 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 10. Table of parameters and data 10.1 Frequency setting parameter Minimum setting unit Default User Title Function Unit Adjustment range Reference Panel/Communication setting setting -  Operation 0.1/0.01 3.2.2 frequency of operation panel 10.2 Basic parameters ...
  • Page 175 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication  0005 Meter selection 0: Output frequency 1: Output current 2: Frequency reference 3: Input voltage (DC detection) 4: Output voltage (command value) 5 to 11: - 12: Frequency setting value (after...
  • Page 176 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication Setting Overload protection OL stall  0017 Electronic-thermal valid invalid protection valid valid Standard characteristic motor invalid...
  • Page 177 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 11.3 Extended parameters  Input/output parameters 1 Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication  0100 Low-speed signal 0.1/0.01 0.0- 6.1.1 output frequency ...
  • Page 178 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication  0151 Input terminal 0-201 6.3.3 selection 1B (F) 6.5.1  0152 Input terminal 0-201 7.2.1 selection 2B (R)
  • Page 179 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Frequency parameters Minimum setting unit Communication Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication  0201 VI input point 1 0-100 6.5.2 setting  0202 VI input point 1 0.1/0.01 0.0-400.0...
  • Page 180 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication   0292 Preset-speed 0.1/0.01 frequency 13 6.10   0293 Preset-speed 0.1/0.01 frequency 14 ...
  • Page 181 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Minimum Communicatio setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication 0: Forward/reverse run permitted Reverse-run  1: Reverse run prohibited 6.12.6 0311 prohibition 2: Forward run prohibited 0: Disabled ...
  • Page 182 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Torque boost parameters 1 Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication  0400 Auto-tuning 6.14 0: Auto-tuning disabled 1: Initialization of  (reset to 0) 2: Auto-tuning executed (after execution: 0) ...
  • Page 183 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Torque boost parameters 2 Minimum Communications setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ications  0480 Motor specific coefficient 7  0485 Motor specific coefficient 8 ...
  • Page 184 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication  0609 Small current 1-20 6.16.7 detection hysteresis 0610 Small current 0: Alarm only ...
  • Page 185 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Output parameters Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication 0669 Logic output/pulse 0: Logic output 6.17.1  train output 1: Pulse train output selection (OUT-NO) 0676 Pulse train output...
  • Page 186 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication  0710 Initial panel 0: Operation frequency (Hz/free unit) 6.18.5 display selection 1: Output current (%/A) 8.2.1 2: Frequency setting value (Hz/free unit) 3 to 17: -...
  • Page 187 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE Minimum Communication setting unit Default User Title Function Unit Adjustment range Reference Panel/Commun setting setting ication  0746 Factory specific coefficient 7A  0749 Integrating 0: 1 = 100 kWh wattmeter display 1: 1 = 1,000 kWh unit selection...
  • Page 188 1: Communication selection of fmod or cmod condition 2: 1 + during operation  0829 Selection of 0: Toshiba inverter protocol communication 1: Modbus RTU protocol protocol  0870 Block write data 1 0: No selection 1: Command information 2: - ...
  • Page 189 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 10.4 Default settings by inverter rating Dynamic Integrating Dynamic Automatic Motor Torque braking Motor rated Motor rated wattmeter braking torque no-load boost value resistor capacity current display unit resistance boost value current capacity selection...
  • Page 190 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 10.5 Input Terminal Function  Table of input terminal functions 1 Function Code Function Action Reference No function Disabled Forward run command ON: Forward run, OFF: Slowdown stop 3.2.1 Inversion of forward run command Inversion of F 7.2.1 Reverse run command...
  • Page 191 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Table of input terminal functions 2 Function Code Function Action Reference Frequency UP ON: Frequency increased 6.5.3 OFF: Frequency increase canceled Inversion of frequency UP Inversion of UP Frequency DOWN ON: Frequency decreased 6.5.3 OFF: Frequency decrease canceled...
  • Page 192 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Input terminal function priority 6,7 8,9 10,11 24,25 36,37 88,89 12,13 28,29 52,53 90,91 Function 14,15 32,33 54,55 92,93 Code 16,17 ○ ○ ○ ○ ○ ○ ○ ○ ○...
  • Page 193 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 10.6 Output Terminal Function  Table of output terminal functions 1 Function Code Function Action Reference ON: Output frequency is more than  Frequency lower limit OFF: Output frequency is or less ...
  • Page 194 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Table of output terminal functions 2 Function Code Function Action Reference Run/stop ON: While operation frequency is output or DC braking is in 3.2.1 operation () OFF: Operation stopped RUNN Inversion of run/stop Inversion of RUN...
  • Page 195 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 11. Specifications 11.1 Models and their standard specifications  Standard specifications Item Specification Input voltage class 3-phase 400V class Applicable motor (kW) 0.75 Type VFNC3C Form 4004P 4007P 4015P 4022P 4037P 4055P 4075P...
  • Page 196 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Common specification Item Specification Control system Sinusoidal PWM control Output voltage range Adjustable within the range of 50 to 660V by correcting the supply voltage Note1) Output frequency range 0.1 to 400.0Hz, default setting: 0.5 to 50Hz, maximum frequency: 30 to 400Hz Minimum setting steps of 0.1Hz: analog input (when the max.
  • Page 197 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE <Continued> Item Specification Protective function Stall prevention, current limitation, over-current, output short circuit, over-voltage, over-voltage limitation, undervoltage, ground fault, detection, input phase failure, output phase failure, overload protection by electronic thermal function, armature over-current at start-up, load side over-current at start-up, over-torque, undercurrent, overheating, cumulative operation time, life alarm, emergency stop, various pre-alarms Electronic thermal...
  • Page 198 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 11.2 Outside dimensions and mass  Outside dimensions and mass Applicable motor Dimensions (mm) Approx. weight Inverter type Drawing (kW) (kg) VFNC3C-4004P 0.75 VFNC3C-4007P VFNC3C-4015P Voltage class VFNC3C-4022P VFNC3C-4037P VFNC3C-4055P VFNC3C-4075P 11.0 VFNC3C-4110P...
  • Page 199 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Outline drawing Fig.A Fig.B Fig.D Fig.C...
  • Page 200 When a problem arises, diagnose it in accordance with the following table. If it is found that replacement of parts is required or the problem cannot be solved by any remedy described in the table, contact your Toshiba dealer. [Trip information]...
  • Page 201 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE (Continued) Error code Failure code Problem Possible causes Remedies   The deceleration time  is too short.  Increase the deceleration time . 000B Overvoltage during deceleration (Regenerative energy is too large.) ...
  • Page 202 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE (Continued) Error code Failure code Problem Possible causes Remedies   A data writing error occurs.  Turn off the inverter, then turn it again. If it 0012 EEPROM fault 1 does not recover from the error, make a service call.
  • Page 203 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE [Alarm information] Each message in the table is displayed to give a warning but does not cause the inverter to trip. Error code Problem Possible causes Remedies  The ST-CC circuit is opened. ...
  • Page 204 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE (Continued) Error code Problem Possible causes Remedies   The input terminal was switched to sink  Check the wiring, and set the appropriate logic. External power supply input  Check to make sure that the wiring is normal, and logic switching check alarm logic of external power supply input (+24V).
  • Page 205 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 12.2 Restoring the inverter from a trip Do not reset the inverter when tripped because of a failure or error before eliminating the cause. Resetting the tripped inverter before eliminating the problem causes it to trip again. The inverter can be restored from a trip by any of the following operations: (1) By turning off the power (Keep the inverter off until the LED turns off.) Note) See inverter trip hold selection ...
  • Page 206 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 12.3 If the motor does not run while no trip message is displayed ... If the motor does not run while no trip message is displayed, follow these steps to track down the cause. YES: The motor does not run.
  • Page 207 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 12.4 How to determine the causes of other problems The following table provides a listing of other problems, their possible causes and remedies. Problems Causes and remedies  The motor runs in the Invert the phases of the output terminals U, V and W.
  • Page 208 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 13. Inspection and maintenance Warning  The equipment must be inspected every day. If the equipment is not inspected and maintained, errors and malfunctions may not be discovered which could lead to accidents. ...
  • Page 209 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Check points 1. Something unusual in the installation environment 2. Something unusual in the cooling system 3. Unusual vibration or noise 4. Overheating or discoloration 5. Unusual odor 6. Unusual motor vibration, noise or overheating 7.
  • Page 210 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE (Note) Before an insulation test, always disconnect all cables from the main circuit terminal board and test the inverter separately from other equipment.. R/L 1 S/L 2 T/L 3 U/T 1 V/T 2 W/T 3 500V...
  • Page 211 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE  Standard replacement cycles of principal parts As guides, the table below lists part replacement cycles that were estimated based on the assumption that the inverter would be used in a normal use environment under normal conditions (ambient temperature, ventilation conditions, and energizing time).
  • Page 212 FOR REFERENCES ONLY VFNC3C ENGLISH MANUAL NOT SUBJECTED FOR RESALE 14. Disposal of the inverter Caution  If you dispose of the inverter, have it done by a specialist in industry waste disposal(*). If you dispose of he inverter by yourself, this can result in explosion of capacitor or produce noxious gases, resulting in injury.