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Omron VS mini J7 User Manual

Compact general purpose inverter
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Manual No.
TOE-S606-12F-OY
VS mini J7
Compact General Purpose Inverter
USER'S MANUAL

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Summary of Contents for Omron VS mini J7

  • Page 1 Manual No. TOE-S606-12F-OY VS mini J7 Compact General Purpose Inverter USER’S MANUAL...
  • Page 2 PREFACE YASKAWA’s VS mini J7 (hereinafter, called VS mini). is a small and simple inverter; as easy as using a contactor. This instruction manual describes installation, maintenance inspection, troubleshooting, and specifications of the VS mini. Read this instruction manual thoroughly before operation.

  • Page 3: Notes For Safe Operation

    NOTES FOR SAFE OPERATION Read this instruction manual thoroughly before installation, operation, maintenance or inspection of the VS mini. In this manual, NOTES FOR SAFE OPERATION are classified as “WARNING” or “CAUTION.” WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury to personnel.
  • Page 4 WARNINGS FOR UL/cUL MARKING • Do not connect or disconnect wiring, or perform signal checks while the power supply is turned ON. • The Inverter internal capacitor is still charged even after the power supply is turnd OFF. To prevent electric shock, disconnect all power before servicing the Inverter.
  • Page 5 RECEIVING CAUTION (Ref. page) • Do not install or operate any inverter which is damaged or has missing parts. Failure to observe this caution may result in personal injury or equipment damage. ÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷15 MOUNTING CAUTION (Ref. page) • Lift the cabinet by the heatsink. When moving the unit, never lift by the plastic case or the terminal covers.
  • Page 6 WIRING WARNING (Ref. page) • Only commence wiring after verifying that the power supply is turned OFF. Failure to observe this warning can result in an electric shock or a fire. ÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷÷20 • Wiring should be performed only by qualified personnel. Failure to observe this warning can result in an electric shock or a fire.
  • Page 7 CAUTION (Ref. page) • Verify that the inverter rated voltage coincides with the AC power supply voltage. Failure to observe this caution can result in personal injury or a fire. • Do not perform a withstand voltage test of the inverter. It may cause semi-conductor elements to be damaged.
  • Page 8 OPERATION WARNING (Ref. page) • Only turn ON the input power supply after replacing the front cover. Do not remove the covers while current is flowing. Failure to observe this warning can result in an electric shock. • Never operate the digital operator or dip the switches when your hand is wet.
  • Page 9 CAUTION (Ref. page) • Never touch the heatsink since the temperature is very high. Failure to observe this caution can result in harmful burns to the body. • Since it is easy to change operation speed from low to high speed, verify the safe working range of the motor and machine before operation.
  • Page 10 WARNING (Ref. page) • Do not perform withstand voltage test on any part of the VS mini. This electronic equipment uses semiconductors and is vulnerable to high voltage. • Only authorized personnel should be permitted to perform maintenance, inspections or parts replacement. [Remove all metal objects (watches, bracelets, etc.) before operation.] (Use tools which are insulated against electric shock.)
  • Page 11 WARNING DISPLAY A warning label is displayed on the front cover of the inverter, as shown below. Follow these instructions when handling the inverter. PLASTIC CASE QUALIFICATION MARK NAME- PLATE STATUS INDICATOR LAMP WARNING DISPLAY Warning Display (Back of this manual) Japanese/French Warning Display WARNING –...

  • Page 12: Table Of Contents

    CONTENTS NOTES FOR SAFE OPERATION •••••••••••••••••••••••••••••• 1. RECEIVING ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• Checking the Name Plate ••••••••••••••••••••••••••••••••••••••••••••••15 2. IDENTIFYING THE PARTS •••••••••••••••••••••••••••••••••• 3. MOUNTING ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• Choosing a Location to Mount the Inverter•••••••••••••••••••••••••17 Mounting Dimensions••••••••••••••••••••••••••••••••••••••••••••••••••••18 Mounting/Removing Components ••••••••••••••••••••••••••••••••••••19 4. WIRING •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• Wiring Instructions ••••••••••••••••••••••••••••••••••••••••••••••••••••••••20 Wire and Terminal Screw Sizes•••••••••••••••••••••••••••••••••••••••21 Wiring the Main Circuit ••••••••••••••••••••••••••••••••••••••••••••••••••24 Wiring the Control Circuit •••••••••••••••••••••••••••••••••••••••••••••••25...
  • Page 13 Automatic restart after momentary power loss ••••••••••••••••••••48 Soft-start characteristics ••••••••••••••••••••••••••••••••••••••••••••••••49 Torque detection ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••50 Frequency detection •••••••••••••••••••••••••••••••••••••••••••••••••••••52 Jump frequencies •••••••••••••••••••••••••••••••••••••••••••••••••••••••••53 Continuing operation by automatic fault reset •••••••••••••••••••••53 Operating coasting motor without trip •••••••••••••••••••••••••••••••54 Holding accel/decel temporarily•••••••••••••••••••••••••••••••••••••••55 Using frequency meter or ammeter ••••••••••••••••••••••••••••••••••56 Calibrating frequency meter or ammeter •••••••••••••••••••••••••••56 Reducing motor noise or leakage current ••••••••••••••••••••••••••57 Operator stop key selection ••••••••••••••••••••••••••••••••••••••••••••59...
  • Page 14 7. MAINTENANCE AND INSPECTION •••••••••••••••••• Periodical Inspection ••••••••••••••••••••••••••••••••••••••••••••••••••••84 Part Replacement ••••••••••••••••••••••••••••••••••••••••••••••••••••••••84 8. FAULT DIAGNOSIS ••••••••••••••••••••••••••••••••••••••••••••• Protective and Diagnostic Function ••••••••••••••••••••••••••••••••••87 Troubleshooting •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••95 9. SPECIFICATIONS ••••••••••••••••••••••••••••••••••••••••••••••••• Standard Specifications (200V Class)•••••••••••••••••••••••••••••••98 Standard Specifications (400V Class) •••••••••••••••••••••••••••••101 Standard Wiring •••••••••••••••••••••••••••••••••••••••••••••••••••••••••104 Sequence Input Connection with NPN/PNP Transistor •••••••106 Dimensions/Heat Loss •••••••••••••••••••••••••••••••••••••••••••••••••109 Recommended Peripheral Devices ••••••••••••••••••••••••••••••••111 Constants List ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••113...

  • Page 15: Receiving

    MODEL C I M R — J 7 A Z 2 0 P 1 Applicable maximum motor output 200V class 400V class Inverter 0.1kW – 0.25kW 0.37kW VS mini J7 Series 0.55kW 0.55kW 1.1kW 1.1kW 1.5kW 1.5kW 2.2kW 2.2kW –...

  • Page 16: Identifying The Parts

    2. IDENTIFYING THE PARTS Digital operator (with potentiometer) Used for setting or changing constants. Frequency can be set using potentiometer. Opening the covers CIMR-J7 21P5, 22P2, 24P0 CIMR-J7 20P1, 20P2, 20P4, 20P7, B0P7, B1P5 B0P1, B0P2, B0P4 40P2, 40P4, 40P7, 41P5 42P2, 43P0, 44P0...

  • Page 17: Mounting

    3. MOUNTING Choosing a Location to Mount the Inverter Be sure the inverter is protected from the following conditions : ▫ Extreme cold and heat. Use only within the ambient temperature range : -10 to +50ºC (14 to 122ºF) ▫ Rain, moisture ▫...

  • Page 18: Mounting Dimensions

    Mounting Dimensions To mount the VS mini, dimensions as shown below are required. 30mm 30mm (1.18 in.) (1.18 in.) OR MORE OR MORE...

  • Page 19: Mounting/Removing Components

    Mounting / Removing Components Removing and Mounting Digital Operator and Covers • Removing front cover Use a driver to loosen the screw on the front cover surface to direction 1 to remove it. Then press the right and left sides to direction 2 and lift the front cover to direction 3.

  • Page 20: Wiring

    4. WIRING Wiring Instructions (1) Always connect the power input terminals R/L1, S/L2, and T/L3 (R/L1, S/L2 for single-phase) and power supply via a molded-case circuit braker (MCCB) or a fuse. Never connect them to terminals U/T1,V/T2,W/T3, –, +1 or +2. Refer to page 111 for recommended peripheral devices.

  • Page 21: Wire And Terminal Screw Sizes

    Wire and Terminal Screw Sizes 1. Control Circuit Wire Tighte Torque Terminal Symbol Screw Model Applicable size Recommended size Type m (Ib • • twisted wire 0.5 to 1.25 20 to 16 0.5 to 0.6 MA, MB, MC 0.75 Shielded (4.44 to 5.33) single 0.5 to 1.25...
  • Page 22 200V Class Single-phase Input Series Tightening Wire Terminal Model Screw Torque Applicable size Recommended size Type Symbol m (lb • • R/L1,S/L2,T/L3, CIMR- –,+1,+2, 0.8 to 1.0 M3.5 0.75 to 2 18 to 14 J7AZ U/T1,V/T2,W/T3 (7.1 to 8.88) B0P1 R/L1,S/L2,T/L3, CIMR- –,+1,+2,...
  • Page 23 400V Class 3-phase Input Series Wire Tightening Terminal Model Screw Applicable size Recommended size Torque Type Symbol m (Ib • • R/L1,S/L2,T/L3, CIMR- –,+1,+2, 0.8 to 1.0 M3.5 J7AZ 2 to 5.5 14 to 10 U/T1,V/T2,W/T3 (7.1 to 8.88) 40P2 R/L1,S/L2,T/L3, CIMR- –,+1,+2,...

  • Page 24: Wiring The Main Circuit

    Wiring the Main Circuit 1 L 2 L 3 [Example of 3-phase, 200V class, 1.5kW inverters] • Inverter output • Main circuit input power supply Connect the motor terminals to U/T1, Always connect the power supply line to V/T2, W/T3. input terminals R/L1, S/L2, and T/L3 [R/L1, S/L2 for single-phase inverters].

  • Page 25: Wiring The Control Circuit

    Wiring the Control Circuit Only basic insulation is provided for the control circuit terminals. Additional insulation may be necessary in the end product. • Control circuit terminals Pass the cable through wiring hole and connect. Be sure to mount the covers on its original position.

  • Page 26: Wiring Inspection

    Open the front cover and verify that the strip length is 5.5mm. (0.22in.) Wiring Inspection After completing wiring, check the following : ▫ Wiring is proper. ▫ Wire clippings or screws are not left in the unit. ▫ Screws are securely tightened. ▫...

  • Page 27: Operating The Inverter

    5. OPERATING THE INVERTER Test Run The inverter operates by setting the frequency (speed). There are three types of operation modes for the VS mini : 1 Run command from the digital operator (potentiometer/digital setting). 2 Run command from the control circuit terminal. 3 Run command from communications (MEMOBUS communications) Prior to shipping, the drive is set up to receive run command and frequency reference from the operator.
  • Page 28 Status Operator 12-LED Operation Steps Indicator Display Display 1. Turn the potentiometer fully to the left before FREF ALARM turning the power ON. ALARM 2. F/R blinks. (Forward) Select FWD/REV run using keys. Never select REV when reverse run is NOTE (Reverse) prohibited.

  • Page 29: Operating The Digital Operator

    Operating the Digital Operator All functions of the VS mini are set by the digital operator. Below are descriptions of the display and keypad sections. DIGITAL OPERATOR Data display section Status indicator Function display LEDs LED switches to another function each time DSPL is pressed.
  • Page 30 Description of Status Indicator LEDs There are two LEDs on the middle right section of the face of the VS mini. The inverter status is indicated by various combinations of ON, BLINKING and OFF LEDs. RUN indicator and status indicator on the button have the same function.

  • Page 31: Led Description

    LED Description By pressing on the digital operator, each of the function LEDs can be DSPL selected. The following flowchart describes each function LED. Power ON Frequency reference setting/monitor (Hz) FREF Sets VS mini operation speed. DSPL Output frequency monitor (Hz) If the VS mini loses Displays frequency that VS mini is currently FOUT...
  • Page 32 LOCAL / REMOTE Selection LO/RE This function switches the operation; operation using the digital operator including frequency setting with potentiometer, or that using the input terminals or through communications Setting can be changed by key. (Local) (Remote) DSPL Constant No. / data PRGM Sets and changes data using constant No.
  • Page 33 • Monitoring Following items can be monitored by U- constants. Constant Name Description Frequency reference Frequency reference can be monitored. (FREF) (Same as FREF) Output frequency Output frequency can be monitored. (FOUT) (Same as FOUT) Output current Output current can be monitored. (IOUT) (Same as IOUT) Output voltage...
  • Page 34 Fault history display method Fault description is displayed when U09 is selected. (Example) ??? : Fault description "---" is displayed if there is no fault. (Refer to page 87 for details.) Clearing fault history Set constant n01 to 6 to clear fault history. Set data returns to its initial value after completion of 6 setting.

  • Page 35: Simple Data Setting

    Simple Data Setting Potentiometer setting (Refer to 5. OPERATING THE INVERTER) and digital setting are both available for simple accel/decel operation of the VS mini. Frequency reference by potentiometer signal is set with initial setting (n03=0). Factory setting of the model with operator (without potentiometer) is set by digital operator (n03=1).

  • Page 36: Programming Features

    6. PROGRAMMING FEATURES Factory settings of the constants are shown as in the tables. Constant Set-up and Initialization Constant selection/initialization (n01) The following table describes the data which can be set or read when n01 is set. Unused constants among n01 to n79 are not displayed. n01 Setting Constant that can be set Constant that can be referred...

  • Page 37: Selecting V/F Pattern

    Selecting V/f pattern Adjusting torque according to application Adjust motor torque by using “V/f pattern” and “full-range automatic torque boost”. • V/f pattern setting Set V/f pattern by n09 to n15 as described below. Set each pattern when using a special motor (high-speed motor, etc.) or when requiring special torque adjustment of machine.
  • Page 38 • Typical setting of V/f pattern Set the V/f pattern according to the application as described below. For 400V class, the voltage values (n10, n13, and n15) should be doubled. When running at a frequency exceeding 50Hz/60Hz, change the maximum output frequency (n09).
  • Page 39 When operating with frequency larger than 60Hz/50Hz, change only max. output frequency (n09). CONSTANT OUTPUT OR CONSTANT TORQUE VARIABLE OUTPUT =200V BASE POINT =60Hz =90Hz • Full-range automatic torque boost Motor torque requirement changes according to load conditions. Full- range automatic torque boost adjusts voltage of V/f pattern according to the requirement.

  • Page 40: Switching Local/Remote Modes

    Switching LOCAL/REMOTE Modes The following functions can be selected by switching the LOCAL or REMOTE mode. To select RUN/STOP commands or frequency reference, change the mode in advance depending on the following applications. • LOCAL mode : Enables the digital operator for RUN/STOP commands and FWD/REV run commands.

  • Page 41: Selecting Run/Stop Commands

    Selecting Run/Stop Commands Switching LOCAL / REMOTE Modes (page 40) to select Refer to either the LOCAL mode or REMOTE mode. Operation method (RUN / STOP commands, FWD / REV run commands) can be selected by the following method. LOCAL mode When Lo (local mode) is selected for digital operator ON mode, LO / RE...

  • Page 42: Selecting Frequency Reference

    Selecting Frequency Reference Frequency reference can be selected by the following methods. Setting by operator Select REMOTE or LOCAL mode in advance. For the method for selecting the mode, refer to page 40. LOCAL mode Select command method by constant n07. n07=0 : Enables the setting by potentiometer on digital operator (initial setting).

  • Page 43: Setting Operation Conditions

    Setting Operation Conditions Reverse run prohibit (n05) “Reverse run disabled” setting does not accept a reverse run command from the control circuit terminal or digital operator. This setting is used for applications where a reverse run command can cause problems. Setting Description Reverse run enabled.

  • Page 44: Operating At Low Speed

    (n28) 60.0 Hz (n27) 55.0 Hz (n26) 50.0 Hz (n25) 45.0 Hz (n24) 40.0 Hz (n23) 35.0 Hz (n22) 30.0 Hz FREQUENCY (n21) 25.0 Hz REFERENCE TIME FWD (REV) RUN/STOP MULTI-STEP SPEED REF. 1 (TERMINAL S3) MULTI-STEP SPEED REF. 2 (TERMINAL S4) MULTI-STEP SPEED REF.

  • Page 45: Adjusting Speed Setting Signal

    Adjusting speed setting signal To provide frequency reference by analog input of control circuit terminal FR or FC, the relationship between analog input and frequency reference can be set. FREQURNCY REFERNCE MAX. OUTPUT FREQUENCY GAIN MAX. OUTPUT FREQUENCY BIAS ( ) indicates the value when current (4mA) (20mA) reference input is selected.
  • Page 46 • To operate the inverter with frequency reference of 50% to 100% at 0 to 10V input MAX. FREQUENCY (100%) Gain n41 = 100 Bias n42 = 50...

  • Page 47: Adjusting Frequency Upper And Lower Limits

    Adjusting frequency upper and lower limits • Frequency reference upper limit (n30) Sets the upper limit of the frequency reference in units of 1%. (n09: Max. output frequency = 100%) Factory setting: 100% • Frequency reference lower limit (n31) FREQUENCY Sets the lower limit of the frequency reference UPPER LIMIT INTERNAL...

  • Page 48: Automatic Restart After Momentary Power Loss

    • Accel time Set the time needed for output frequency to reach 100% from 0%. • Decel time Set the time needed for output frequency to reach 0% from 100%. (Maximum output frequency n09=100%) Automatic restart after momentary power loss (n47) When momentary power loss occurs, operation restarts automatically.

  • Page 49: Soft-Start Characteristics

    Soft-start characteristics (n20) To prevent shock at machine start/stop, accel/decel can be performed in S- curve pattern. Setting S-curve characteristic time S-curve characteristic not provided 0.2 second 0.5 second 1.0 second Note : S-curve characteristic time is the time from accel/decel rate 0 to a regular accel/decel rate determined by the set accel/decel time.

  • Page 50: Torque Detection

    Torque detection If an excessive load is applied to the machine, output current increase can be detected to output alarm signals to multi-function output terminals MA and To output an overtorque detection signal, set output terminal function selection n40 to “overtorque detection” [Setting:6 (NO contact) or 7 (NC contact)].
  • Page 51 • Overtorque detection function selection (n59) Setting Description Overtorque detection not provided Detected during constant-speed running, and operation continues after detection. Detected during constant-speed running, and operation stops during detection. Detected during running, and operation continues after detection. Detected during running, and operation stops during detection.

  • Page 52: Frequency Detection

    Frequency detection (n58) Effective when either of output terminal function selection n40 is set to “frequency detection” (setting: 4 or 5). “Frequency detection” turns ON when output frequency is higher or lower than the frequency detection level (n58). • Frequency detection 1 (Output frequency Ä...

  • Page 53: Jump Frequencies

    Jump frequencies (n49 to n51) This function allows the prohibition or “jumping” of critical frequencies so that the motor can operate without resonance caused by machine systems. This function is also used for dead band control. Setting the value to 0.0Hz disables this function.

  • Page 54: Operating Coasting Motor Without Trip

    Operating coasting motor without trip To operate coasting motor without trip, use the speed search command or DC injection braking at start. • Speed search command Restarts a coasting motor without stopping it. This function enables smooth switching between motor commercial power supply operation and inverter operation.

  • Page 55: Holding Accel/Decel Temporarily

    Holding accel/decel temporarily To hold acceleration or deceleration, input accel/decel hold command. The output frequency is maintained when the accel/decel hold command is input during acceleration or deceleration. When the stop command is input during accel/decel prohibition command input, accel/decel hold is released and operation ramps to stop. Set multi-function input terminal selection (n36 to n39) to 16 (accel/decel hold command).

  • Page 56: Using Frequency Meter Or Ammeter

    Using frequency meter or ammeter (n44) Selects to output either output frequency or output current to analog output terminals AM-AC for monitoring. Setting Setting Description Output frequency Output current In initial setting, analog voltage of approx. 10V is output when output frequency (output current) is 100%.

  • Page 57: Reducing Motor Noise Or Leakage Current

    Reducing motor noise or leakage current (n46) Set inverter output transistor switching frequency (carrier frequency). Noise and Current Metallic Noise Setting Carrier Frequency from Motor Leakage 12 fout (Hz) 24 fout (Hz) Higher Smaller (Hz) 36 fout (kHz) (kHz) Larger audible (kHz) (kHz)
  • Page 58 Factory setting varies according to inverter capacity (kVA). Initial Setting Maximum Continuous Capacity Voltage Class Reduced Current Output Current Carrier (kW) Setting Frequency 10kHz 0.25 10kHz ---- 0.55 10kHz Single-phase 10kHz 7.5kHz 3-phase 7.5kHz 11.0 10.0 7.5kHz 17.5 16.5 0.37 7.5kHz 0.55 7.5kHz...

  • Page 59: Operator Stop Key Selection

    Operator stop key selection (n06) Selects processing when STOP key is pressed during operation from multi- function input terminal. Description Description Setting Setting STOP key effective when running either from multi-function input terminals or communications. When STOP key is pressed, the inverter stops according to the setting of constant n04.

  • Page 60: Selecting Stopping Method

    Selecting Stopping Method Selecting stopping method (n04) Selects the stopping method suitable for application. Setting Setting Description Deceleration to stop Coast to stop • Deceleration to stop Example when accel/decel time 1 is selected MIN. OUTPUT DECEL ACCEL FREQUENCY OUTPUT DECEL TIME 1 TIME 1 TIME 1...

  • Page 61: Applying Dc Injection Braking

    • Coast to stop Example when accel/decel time 1 is selected OUTPUT ACCEL DECEL FREQUENCY TIME 1 TIME 1 COAST TO (n016) (n17) STOP TIME FWD (REV) RUN COMMAND * When frequency reference is changed during running. Upon removal of the FWD (REV) run command, the motor starts coasting. Applying DC injection braking •...

  • Page 62: Building Interface Circuits With External Devices

    Building Interface Circuits with External Devices Using input signals Multi-function input terminal S2 to S5 functions can be changed when necessary by setting constants n36 to n39 respectively. The same value cannot be set to different constant settings. Setting Name Description Ref.
  • Page 63 Terminal function at 3-wire sequence selection When 0 is set at the terminal S3 (n37), terminal S1 becomes run command, terminal S2 becomes stop command, and terminal S3 becomes FWD/REV run command. RUN SW VS mini (NO CONTACT) STOP SW (NC CONTACT) Run command (Run when “closed”)
  • Page 64 Time Chart at UP/DOWN Command Input FWD RUN UP COMMAND S4 DOWN COMMAND S5 UPPER LIMIT SPEED LOWER LIMIT SPEED OUTPUT FREQUENCY FREQUENCY AGREED SIGNAL U = UP (accelerating) status D = DOWN (decelerating) status H = HOLD (constant speed) status U1 = UP status, clamping at upper limit speed D1 = DOWN status, clamping at lower limit speed Notes :...

  • Page 65: Using Output Signals

    • Communication/multi-function input terminal selection input (setting: 18) (This function is effective when option card is installed) Operation can be changed from communication command, or from multi- function input terminal or digital operator command. Run command from communication and frequency reference are effective when multi-function input terminal for this setting is “Closed.”...
  • Page 66 Initial setting of multi-function output terminal Terminals Initial Setting MA, MB 1 (in operation) • Frequency agreed signal (setting=2) RELEASE WIDTH DETECTION WIDTH ±2Hz ±4Hz OUTPUT FREQUNENCY FREQUENCY AGREED SIGNAL...

  • Page 67: Setting Frequency By Current Reference Input

    Setting Frequency by Current Reference Input When setting frequency by inputting current reference (4-20mA or 0-20mA) from the control circuit terminal FR, switch the DIP switch SW8 on the control circuit board to “I” side. SW8 is accessed by removing the option cover.
  • Page 68 Current reference selection After changing DIP switch (V/I switch of SW8), PRESS on the digital PRGM operator, then set the following constants. 4-20mA..n03 = 3 0-20mA..n03 = 4 • Setting : n02 = 0, n03 = 3 or 4 Press the digital operator keys to run or stop the inverter.

  • Page 69: Preventing Motor From Stalling (Current Limit)

    Preventing Motor from Stalling (Current Limit) Automatically adjusts the output frequency and output current according to the load to continue operation without stalling the motor. • Stall prevention (current limit) level during acceleration (n56) Sets the stall prevention (current limit) level during acceleration in units of 1% (Inverter rated current = 100%).
  • Page 70 • Stall prevention (current limit) level during running (n57) Sets the stall prevention (current limit) level during running in units of 1% (Inverter rated current = 100%). * Factory setting: 160% A setting of 200% disables the stall prevention (current limit) during running.

  • Page 71: Decreasing Motor Speed Fluctuation

    Decreasing Motor Speed Fluctuation Slip compensation As the load becomes larger, motor speed is reduced and motor slip value is increased. The slip compensating function controls the motor speed at a constant value even if the load varies. When inverter output current is equal to the motor rated current (n32), the compensation frequency is added to the output frequency.

  • Page 72: Motor Protection

    Motor Protection Motor overload detection The VS mini protects against motor overload with a built-in electronic thermal overload relay. • Motor rated current (electoronic thermal reference current, n32) Set to the rated current value shown on the motor nameplate. Note: Setting to 0.0A disables the motor overload protective function. •...

  • Page 73: Selecting Cooling Fan Operation

    • General-purpose motor and inverter motor Induction motors are classified as general-purpose motors or inverter motors, based on their cooling capabilities. Therefore, the motor overload function operates differently between these two motor types. Example of 200V class motor Electronic Thermal Cooling Effect Torque Characteristics overload...

  • Page 74: Using Memobus (Modbus) Communications (Optional)

    No., and the master specifies the number and conduct signal communications. The slave receives the communication to carry out designated functions and reply to the master. MEMOCON Series VS mini J7 VS mini J7 VS mini J7 Example of RS-485 communication ○...

  • Page 75: Using Constant Copy Function

    Note: When using a digital operator for remote operation, use with a remote interface unit for remote operation (optional) and the cable for remote operation (optional). Refer to the VS mini J7 catalog (Literature No. KAE-S606-12) for details. Constant copy function is possible only for the inverters with same product series and power supply specifications.
  • Page 76 Constant No. Name Unit Setting Range Initial Setting rdy: READY rEd: READ CPy: COPY Constant copy vFy: VERIFY – function vA: Inverter capacity selection display Sno: Software No. display • Prohibiting constant read selection (n77) Select this function to prevent accidentally overwriting the constants stored in EEPROM or in the digital operator.

  • Page 77: Read Function

    READ function Reads out the constants in batch from the inverter and stores them in EEPROM inside the digital operator. When the read-out is executed, the previously stored constants data in the EEPROM are cleared and replaced with the newly entered constants. [Example] Store the constants read out from the inverter, in the EEPROM inside the digital operator.

  • Page 78: Copy Function

    COPY function Writes the constants stored inside the digital operator in batch to the inverter. Write-in is possible only for the inverters with same product series and power supply specifications. Therefore, writing from 200 V class to 400 V class (or vice versa), from V/f control mode to vector control mode (or vice versa), and from VS mini to VS-606V7 are not possible.
  • Page 79 A setting range check and matching check for the written-in constants are executed after the constants are written from the digital operator to the inverter. If any constant error is found, the written constants are discarded and the constants stored before writing are restored. When a setting range error is found, the constant No.

  • Page 80: Verify Function

    VERIFY function Collates the constants stored in the digital operator with the constant in the inverter. As well as write-in, VERIFY is possible only for the inverters with same product series and power supply specifications . When the constants stored in the digital operator correspond to those in the inverter, vFy is displayed by blinking, then End is displayed.

  • Page 81: Inverter Capacity Display

    Inverter capacity display The voltage class and maximum applicable motor capacity (whose constants stored in the digital operetor are read out) are displayed. [Example] Display the voltage class and maximum applicable motor capacity for the inverter whose constants stored in EEPROM inside he digital operator Operator display Explanation...

  • Page 82: Software No. Display

    Software No. display The software No. (of the inverter whose constants stored in the digital operator are read out) is displayed. [Example] Display the software No. of the inverter whose constants stored in EEPROM inside the digital operator Operator display Explanation •...
  • Page 83 Display list Operator Description Corrective action display Lit : Setting for constant copy function – selection enabled Lit: READ selected – Flashed: READ under execution Lit: Writing (COPY) selected – Blinks: Writing (COPY) under execution Lit: VERIFY selected – Flashed: VERIFY under execution Lit: Inverter capacity display selected –...

  • Page 84: Maintenance And Inspection

    7. MAINTENANCE AND INSPECTION Periodical Inspection Periodically inspect the inverter as described in the following table to prevent accidents and to ensure high performance with high-reliability. Location to Check Check For Solution Terminals, unit Connection hardware is Properly seat and tighten mounting screws, properly seated and hardware.
  • Page 85 Replacement of cooling fan • Inverter of W-dimension (width) 68mm (2.68 inches), 140mm (5.51 inches) 1. Removal (1) Press the right and left clicks of the fan cover to direction 1, and then pull them to direction 2 to remove the fan cover from the inverter unit.
  • Page 86 • Inverter of W-dimension (width) 108mm (4.25 inches) 1. Removal (1) Remove the front cover, and then remove the cooling fan connector (CN4). (2) Press the right and left clicks of the fan cover to direction 1, and pull the fan cover to direction 2 to remove it from the inverter unit.

  • Page 87: Fault Diagnosis

    8. FAULT DIAGNOSIS Protective and Diagnostic Function This section describes the alarm and fault displays, explanations for fault conditions and corrective actions to be taken if the VS mini malfunctions. < Corrective actions for models without digital operator > 1. Input fault reset or cycle the power supply OFF and ON. 2.
  • Page 88 <Corrective Actions of Models with Digital Operator> : ON : BLINKING : OFF Alarm Display and Contents Alarm Display Causes and Inverter Explanation Digital RUN ALARM Corrective Actions Status Operator (Green) (Red) UV (Main circuit low voltage) Check the following : Main circuit DC voltage •...
  • Page 89 Alarm Display Causes and Inverter Explanation Digital RUN ALARM Corrective Actions Status Operator (Green) (Red) OP? (Constant setting Check the setting values. error when the constant setting is performed through the MEMOBUS communications) OP1: Two or more values are set for multi- function input selection.
  • Page 90 Alarm Display Causes and Inverter Explanation Digital RUN ALARM Corrective Actions Status Operator (Green) (Red) BB (External baseblock) Check the external circuit Baseblock command at (sequence). multi-function terminal is active, the inverter output is shut OFF (motor coasting). Blinking Temporary condition is cleared when input command is removed.
  • Page 91 Fault Display and Contents Fault Display Causes and Inverter Explanation Digital RUN ALARM Corrective Actions Status Operator (Green) (Red) • Short circuit or grounding at inverter (Overcurrent) output side Inverter output current • Excessive load GD momentarily exceeds • Extremely rapid accel/ approx.
  • Page 92 Fault Display Causes and Inverter Explanation Digital RUN ALARM Corrective Actions Status Operator (Green) (Red) • Excessive load OH (Cooling fin overheat) Temperature rise • Improper V/f pattern because of inverter setting overload operation or • Insufficient accel time intake air temperature if the fault occurs rise.
  • Page 93 Fault Display Causes and Inverter Explanation Digital RUN ALARM Corrective Actions Status Operator (Green) (Red) Check the external circuit (External fault) (sequence). Inverter receives an external fault input from control circuit terminal. EF0: External fault reference through MEMOBUS communications EF2: External fault input command from control circuit terminal S2 EF3: External fault input...
  • Page 94 Fault Display Causes and Inverter Explanation Digital RUN ALARM Corrective Actions Status Operator (Green) (Red) CPF-05 Cycle power. A/D converter fault is If the fault remains, detected. replace the inverter. CPF-06 Remove power to the • Option card connecting inverter. fault Check the connection Protective...

  • Page 95: Troubleshooting

    Troubleshooing Trouble Cause Corrective Actions The motor does The operation method selection is Set the run command (n02) to not operate when wrong. Control Circuit Terminal. an external The run command (n02) is not set to operation signal is Control Circuit Terminal. input.
  • Page 96 Trouble Cause Corrective Actions When the maximum frequency To increase the speed of a was changed, the maximum general-purpose motor, only voltage frequency was also change the maximum frequency. changed. The V/f set value is too low. Set the V/f (n09 to n15) according to the load characteristics.
  • Page 97 Trouble Cause Corrective Actions The digital The power is not being supplied. Check if the power is being operator does not The breaker or other component on supplied. turn ON. the power input side is not turned ON, and the power is being not supplied.

  • Page 98: Specifications

    9. SPECIFICATIONS Standard Specifications (200V Class) 200V single- / 3-phase Voltage Class 20P1 20P2 20P4 20P7 21P5 22P2 24P0 phase Model CIMR-J7 * Z???? Single- B0P1 B0P2 B0P4 B0P7 B1P5 – – phase 0.25 0.55 Max. Applicable Motor Output (0.13) (0.23) (0.5) kW (HP)*...
  • Page 99 200V single- / 3-phase Voltage Class 20P1 20P2 20P4 20P7 21P5 22P2 24P0 phase Model CIMR-J7 * Z???? Single- B0P1 B0P2 B0P4 B0P7 B1P5 – – phase Motor Overload Electronic thermal overload relay Protection Motor coasts to a stop at approx. 200% of inverter rated Instantaneous Overcurrent current...
  • Page 100 200V single- / 3-phase Voltage Class 20P1 20P2 20P4 20P7 21P5 22P2 24P0 phase Model CIMR-J7 * Z???? Single- B0P1 B0P2 B0P4 B0P7 B1P5 – – phase Status Indicator RUN and ALARM provided as LED's Available to monitor frequency reference, Digital Operator output frequency, output current Main circuit: screw terminals...

  • Page 101: Standard Specifications (400V Class)

    Standard Specifications (400V Class) Voltage Class 400V 3-phase Model 40P2 40P4 40P7 41P5 42P2 43P0 44P0 CIMR-J7 * Z???? phase 0.37 0.55 Max. Applicable Motor Output (0.5) (0.75) (1.5) kW (HP) * Inverter Capacity (kVA) Rated Output Current (A) Max. Output Voltage (V) 3-phase, 380 to 460V (proportional to input voltage) Max.
  • Page 102 400V 3-phase Voltage Class Model 40P2 40P4 40P7 41P5 42P2 43P0 44P0 phase CIMR-J7 * Z???? Motor Overload Electronic thermal overload relay Protection Instantaneous Motor coasts to a stop at approx. 200% of inverter rated current Overcurrent Motor coasts to a stop after 1 minute at 150% of inverter Overload rated output current Overvoltage...
  • Page 103 400V 3-phase Voltage Class Model 40P2 40P4 40P7 41P5 42P2 43P0 44P0 CIMR-J7 * Z???? phase Status Indicator RUN and ALARM provided as standard LED's Available to monitor frequency reference, Digital Operator output frequency, output current Main circuit: screw terminals Terminals Control circuit: plug-in screw terminal Wiring Distance...

  • Page 104: Standard Wiring

    Standard Wiring DC REACTOR (OPTION) SHORT-CIRCUIT BAR* MCCB R/L1 S/L2 U/T1 FOR SINGLE-PHASE, USE R/L1 AND S/L2. T/L3 V/T2 FORWARD RUN/STOP W/T3 REVERSE RUN/STOP FAULT RESET EXTERNAL FAULT MULTI- (NO CONTACT) FUNCTION MULTI-FUNCTION † MULTI-STEP INPUT SPEED REF. 1 OUTPUT RUNNING 250VAC 1A OR LESS 30VDC 1A OR LESS...
  • Page 105 Terminal description Type Terminal Name Function (Signal Level) R/L1, Use main circuit power input. (Use terminals R/L1 AC power supply S/L2, and S/L2 for single -phase inverters. Never use input T/L3 terminal T/L3.) U/T1, Inverter output V/T2, Inverter output W/T3 DC reactor When connecting optional DC reactor, remove the +2, +1...

  • Page 106: Sequence Input Connection With Npn/Pnp Transistor

    Sequence Input Connection with NPN/PNP Transistor When connecting sequence inputs (S1 to S5) with transistor, turn the rotary switch SW7 depending on the polarity(0V common: NPN side, +24V common: PNP side). Factory setting: NPN side...
  • Page 107 Sequence connection with NPN transistor (0V common) VS mini J7 Forward run / stop Reverse run/ stop Multi- fuction Fault reset input External fault (NO) Multi-step speed reference 1 +24V...
  • Page 108 Sequence connection with PNP transistor (+24V common) VS mini J7 Forward run / stop Reverse run / stop Multi- Fault reset External function power input External fault (NO) supply +24V Multi-step speed reference 1 +24V...

  • Page 109: Dimensions/Heat Loss

    Dimensions/Heat Loss (0.34) Fig. 1 (0.34) Fig. 2...
  • Page 110 Dimensions in mm (inches)/mass in kg (lb)/Heat Loss (W) Heat Loss (W) Voltage Capacity Mass Fig. class Heatsink Unit Total 13.0 (2.68) (5.04) (2.76) (2.20) (4.65) (0.20) (1.10) 0.25 10.3 18.0 (2.68) (5.04) (2.76) (2.20) (4.65) (0.20) (1.10) 0.55 15.8 12.3 28.1 (2.68)

  • Page 111: Recommended Peripheral Devices

    Recommended Peripheral Devices It is recommended that the following peripheral devices should be mounted between the AC main circuit power supply and VS mini input terminals R/L1, S/L2, and T/L3. • MCCB (Molded-case circuit breaker) / fuse : Be sure to connect it for wiring protection. •...
  • Page 112 10A25C C002482 0.1µF 100Ω HH-22, -23(FUJI) MM-2, -4 (OMRON) • Ground fault interrupter: Select a ground fault interrupter not affected by high frequencies. To prevent malfunctions, the current should be 200mA or more and the operating time 0.1 sec. or more.

  • Page 113: Constants List

    Constants List • Addition of constants accompanied by the upgraded software version The constants marked with #1 are applicable for the upgraded software version No. VSP 020011 or later. • Constants that can be changed during operation The constants whose numbers are in bold can be changed during operation. Register No.
  • Page 114 Register No. for Setting Setting Initial User Ref. Name Trans- Range Unit Setting Setting Page mission Frequency reference 1 0.1Hz (less than 100Hz) (Master speed frequency 6.0Hz 0115H 0.0 to 400 1Hz (100Hz or more) reference) 0.1Hz (less than 100Hz) 0.0Hz 0116H Frequency reference 2 0.0 to 400...
  • Page 115 Register No. for Setting Setting Initial User Ref. Name Trans- Range Unit Setting Setting Page mission Multi-function input 2 to 8 36 0124H selection 2 10 to 22 Multi-function input 0, 2 to 8 37 0125H selection 3 10 to 22 Multi-function input 2 to 8 38 0126H...
  • Page 116 Register No. for Setting Setting Initial User Ref. Name Trans- Range Unit Setting Setting Page mission Overtorque detection 013BH 0 to 4 function 160% 60 013CH Overtorque detection level 30 to 200% 61 013DH Overtorque detection time 0.1s 0.1s 0.1 to 10.0s 013EH Hold output 0, 1 013FH Torque compensation gain...
  • Page 117 < 200V class 3-phase Name Unit Initial setting – Inverter capacity 0.1kW 0.25kW 0.55kW 1.1kW 1.5kW 2.2kW – 4.0kW Motor rated current – 14.1 Motor rated slip – – Motor no-load current – < 200V class single-phase Name Unit Initial setting –...
  • Page 118 NOTES...
  • Page 119 NOTES...
  • Page 120 NOTES...
  • Page 121 NOTES...
  • Page 122 NOTES...
  • Page 123 OMRON YASKAWA MOTION CONTROL B.V. – Wegalaan 65 – 2132 JD Hoofddorp – The Netherlands phone: + 31 (0) 23 568 74 00 – fax: + 31 (0) 23 568 74 88 – www.omronyaskawa.com Note: Specifications subject to change without notice.

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