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Miki Pulley V6 series Instruction Manual

Compact inverter
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Compact Inverter
Thank you for purchasing our V6 series of inverters.
• This product is designed to drive a three-phase induction motor. Read through this instruction
manual and be familiar with the handling procedure for correct use.
• Improper handling might result in incorrect operation, a short life, or even a failure of this
product as well as the motor.
• Deliver this manual to the end user of this product. Keep this manual in a safe place until this
product is discarded.
• For how to use an optional device, refer to the instruction and installation manuals for that
optional device.
Miki Pulley Co., Ltd.
V6 series

Instruction Manual

[ IBD#D-I-25-B ]
TRS-IV-008

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Summary of Contents for Miki Pulley V6 series

  • Page 1: Instruction Manual

    [ IBD#D-I-25-B ] Compact Inverter V6 series Thank you for purchasing our V6 series of inverters. • This product is designed to drive a three-phase induction motor. Read through this instruction manual and be familiar with the handling procedure for correct use.
  • Page 2 Failure to heed the information contained under the CAUTION title can also result in serious consequences. These safety precautions are of utmost importance and must be observed at all times. Application • V6 series is designed to drive a three-phase induction motor. Do not use it for single-phase motors or for other purposes.
  • Page 3 Fire or an accident could occur. • V6 series may not be used for a life-support system or other purposes directly related to the human safety. • Though V6 series is manufactured under strict quality control, install safety devices for applications where serious accidents or material losses are foreseen in relation to the failure of it.
  • Page 4 Otherwise, electric shock or fire could occur. • Qualified electricians should carry out wiring. • Be sure to perform wiring after turning the power off. • Ground the inverter following Class C or Class D specifications or national/local electric code, depending on the input voltage of the inverter. Otherwise, electric shock could occur.
  • Page 5 • The STOP key is only effective when function setting (Function code F02) has been established to enable the STOP key. Prepare an emergency stop switch separately. If you disable the STOP key priority function and enable operation by external commands, you cannot emergency-stop the inverter using the STOP key on the built-in keypad.
  • Page 6 signal cables and wires will not come into contact with live conductors of the main circuits. Failure to observe these precautions could cause electric shock and/or an accident. Maintenance and inspection, and parts replacement • Turn the power off and wait for at least five minutes before starting inspection. Further, check that the LED monitor is unlit, and check the DC link circuit voltage between the P (+) and N (-) terminals to be lower than 25 VDC.
  • Page 7 greater than power supply lines. * With overcurrent protection. When used with inverter, molded case circuit breaker (MCCB), residual-current-operated protective device (RCD)/earth leakage circuit breaker (ELCB) or magnetic contactor (MC) should conform to the EN or IEC standards. 3. When you use a residual-current-operated protective device (RCD)/earth leakage circuit breaker (ELCB) for protection from electric shock in direct or indirect contact power lines or nodes, be sure to install type B of RCD/ELCB on the input (primary) of the inverter if the power source is three-phase 200/400 V.
  • Page 8 Conformity to the Low Voltage Directive in the EU (Continued) 11. Use wires listed in EN60204 Appendix C. Recommended wire size (mm Appli- Main circuit Rated current (A) Control power input [P1, cable circuit Inverte [L1/R, L2/S, L3/T] motor Inverter type P (+)] MCCB or RCD/ELCB (30A,...
  • Page 9 Conformity to UL standards and Canadian standards (cUL certification) If installed according to the guidelines given below, inverters marked with UL/cUL are considered as compliant with the UL and CSA (cUL certified) standards. 1. Solid state motor overload protection (motor protection by electronic thermal overload relay) is provided in each model.
  • Page 10 Conformity to UL standards and Canadian standards (cUL certification) (Continued) 6. Install UL certified fuses between the power supply and the inverter, referring to the table below. Required torque Wire size Ib-in (N·m) AWG or kcmil (mm Power supply Inverter type Control circuit Control circuit voltage...
  • Page 11 Geared motors operation at low speed may cause poor lubrication. Avoid such operation. It is necessary to take special measures suitable for this Synchronous motor type. Contact your Miki Pulley representative for motors details.
  • Page 12 Single-phase motors are not suitable for inverter-driven variable speed operation. Use three-phase motors. In running Single-phase special * Even if a single-phase power supply is available, use a motors motors three-phase motor as the inverter provides three-phase output. Use the inverter within the ambient temperature range from -10 to +50°C.
  • Page 13 Combina- Use of a filter and shielded wires is typically recommended to Reducing noise tion with satisfy EMC directives. peripheral devices If an overvoltage trip occurs while the inverter is stopped or operated under a light load, it is assumed that the surge Measures against current is generated by open/close of the phase-advancing surge currents...
  • Page 14 How this manual is organized This manual is made up of chapters 1 through 11. Chapter 1 BEFORE USING THE INVERTER This chapter describes acceptance inspection and precautions for transportation and storage of the inverter. Chapter 2 MOUNTING AND WIRING OF THE INVERTER This chapter provides operating environment, precautions for installing the inverter, wiring instructions for the motor and inverter.
  • Page 15 Icons The following icons are used throughout this manual. This icon indicates information which, if not heeded, can result in the inverter not operating to full efficiency, as well as information concerning incorrect operations and settings which can result in accidents. This icon indicates information that can prove handy when performing certain settings or operations.
  • Page 16 Table of Contents Preface ............i Safety precautions..........ii Precautions for use..........xi How this manual is organized ........ xiv...
  • Page 17 (a) Main Nameplate (b) Sub Nameplate Figure 1.1 Nameplates TYPE: Type of inverter V 6 - 01 - 4 Code Series name V6 series Code Assemble motor rating Code Brake 0.1 kW W/O Braking 0.2 kW Braking resistor built-in type 0.4 kW...
  • Page 18 1.2 External View and Terminal Blocks (1) External views Control circuit terminal block cover nameplate Keypad Main circuit Main Main terminal block nameplate nameplate cover Control circuit terminal bock cover Figure 1.2 External Views of V6 (2) View of terminals Barrier for the RS485 communications port* Control signal cable port...
  • Page 19 1.4 Storage Environment 1.4.1 Temporary storage Store the inverter in an environment that satisfies the requirements listed in Table 1.1. Table 1.1 Environmental Requirements for Storage and Transportation Item Requirements Storage -25 to +70°C Locations where the inverter is not temperature * subject to abrupt changes in temperature that would result in the...

  • Page 20: Chapter 2 Mounting And Wiring Of The Inverter

    Chapter 2 MOUNTING AND WIRING OF THE INVERTER 2.1 Operating Environment Install the inverter in an environment that satisfies the requirements listed in Table 2.1. Table 2.2 Output Current Derating Factor in Table 2.1 Environmental Requirements Relation to Altitude Item Specifications Output current Altitude...
  • Page 21 (3) Mounting direction Secure the inverter to the mounting base with four screws or bolts (M4) so that the V6 Series logo faces outwards. Tighten those screws or bolts perpendicular to the mounting base. Do not mount the inverter upside down or horizontally. Doing so will reduce the heat dissipation efficiency of the inverter and cause the overheat protection function to operate, so the inverter will not run.
  • Page 22 2.3.2 Terminal arrangement and screw specifications The figures below show the arrangement of the main and control circuit terminals which differs according to inverter type. The two terminals prepared for grounding, which are indicated by the symbol G in Figures A and B, make no distinction between the power supply side (primary circuit) and the motor side (secondary circuit).
  • Page 23 (2) Arrangement of the control circuit terminals (common to all V6 models) FWD REV Screw size: M 2 Tightening torque: 0.2 N•m Screw size: M 2.5 Tightening torque: 0.4 N•m Table 2.4 Control Circuit Terminals Dimension of openings in Bared wire the control circuit termi- length nals for stick terminals*...
  • Page 24 Table 2.6 Recommended Wire Sizes Recommended wire size (mm Appli- Main circuit cable Main circuit power input motor Inverter type [L1/R, L2/S, L3/T] Braking Control Inverter rating Grounding [ resistor circuit output (kW) [P1, P (+)] [P (+), DB] [U, V, W] w/ DCR w/o DCR V6-01-4...
  • Page 25 2.3.4 Wiring precautions Follow the rules below when performing wiring for the inverter. (1) Make sure that the source voltage is within the rated voltage range specified on the nameplate. (2) Be sure to connect the power wires to the main circuit power input terminals L1/R, L2/S and L3/T (for three-phase voltage input) of the inverter.
  • Page 26 2.3.5 Wiring for main circuit terminals and grounding terminals Follow the procedure below. Figure 2.3 illustrates the wiring procedure with peripheral equipment. Wiring procedure Grounding terminal G (Use either one of the Gs.) Inverter output terminals (U, V, and W) DC reactor connection terminals (P1 and P(+)) * Braking resistor connection terminals (P(+) and DB) * DC link circuit terminals (P(+) and N(-)) *...
  • Page 27 The wiring procedure for the V6-07-4 is given below as an example. For other inverter types, perform wiring in accordance with their individual terminal arrangement. (Refer to page 2-3.) Grounding terminals ( G) Be sure to ground either of the two grounding terminals for safety and noise reduction. It is stipulated by the Electric Facility Technical Standard that all metal frames of electrical equipment must be grounded to avoid electric shock, fire and other disasters.
  • Page 28 • Do not connect a power factor correcting capacitor or surge absorber to the inverter’s output terminals (secondary circuit). • If the wiring length is long, the stray capacitance between the wires will increase, resulting in an outflow of the leakage current. It will activate the overcurrent protection, increase the leakage current, or will not assure the accuracy of the current display.
  • Page 29 Braking resistor terminals, P(+) and DB Connect terminals P and DB of a braking resistor to terminals P(+) and DB on the main circuit terminal block. (For the braking resistor built-in type, refer to the next page.) When using an external braking resistor, arrange the inverter and braking resistor to keep the wiring length to 5 m or less and twist the two wires or route them together in parallel.
  • Page 30 DC link circuit terminals, P (+) and N (-) These are provided for the DC link circuit system. Connect these terminals with terminals P(+) and N (-) of other inverters. Consult your Miki Pulley representative if these terminals are to be used. 2-11...
  • Page 31 Main circuit power input terminals, L1/R, L2/S, and L3/T (for three-phase voltage input) 1) For safety, make sure that the molded case circuit breaker (MCCB) or magnetic contactor (MC) is turned off before wiring the main circuit power input terminals. 2) Connect the main circuit power supply wires (L1/R, L2/S and L3/T) to the input terminals of the inverter via an MCCB or residual-current-operated protective device...
  • Page 32 2.3.7 Wiring for control circuit terminals In general, sheaths and covers of the control signal cables and wires are not specifically designed to withstand a high electric field (i.e., reinforced insulation is not applied). Therefore, if a control signal cable or wire comes into direct contact with a live conductor of the main circuit, the insulation of the sheath or the cover might break down, which would expose the signal wire to a high voltage of the main circuit.
  • Page 33 Table 2.8 Symbols, Names and Functions of the Control Circuit Terminals Symbol Name Functions [13] Potenti- Power supply (+10 VDC) for frequency command potentiometer ometer (Potentiometer: 1 to 5 kΩ) power Allowable output current: 10 mA supply [12] Voltage (1) The frequency is set according to the external analog input voltage. input 0 to +10 (VDC)/0 to 100 (%) (Normal mode operation) +10 to 0 (VDC)/0 to 100 (%) (Inverse mode operation)
  • Page 34 Table 2.8 Continued Symbol Name Functions - Since weak analog signals are handled, these signals are especially susceptible to the external noise effects. Route the wiring as short as possible (within 20 m) and use shielded wires. In principle, ground the shielding layer of the shielded wires;...
  • Page 35 Table 2.8 Continued Symbol Name Functions [X1] Digital (1) The various signals such as coast-to-stop, alarm from external input 1 equipment, and multistep frequency selection can be assigned to terminals [X1] to [X3], [FWD] and [REV] by setting function codes E01 to [X2] Digital E03, E98, and E99.
  • Page 36 Table 2.8 Continued Symbol Name Functions Turning on or off [X1], [X2], [X3], [FWD], or [REV] using a relay contact Figure 2.15 shows two examples of a circuit that turns on or off control signal input [X1], [X2], [X3], [FWD], or [REV] using a relay contact. Circuit (a) has a connecting jumper applied to SINK, whereas circuit (b) has it applied to SOURCE.
  • Page 37 Table 2.8 Continued Symbol Name Functions [FMA] Analog The monitor signal for analog DC voltage (0 to +10 VDC) is output. The monitor signal functions can be selected from the following with function code F31. - Output frequency (before slip compensation) - Output frequency (after slip compensation) - Output current - Output voltage...
  • Page 38 Table 2.8 Continued Symbol Name Functions Connecting Programmable Controller (PLC) to Terminal [Y1] Figure 2.18 shows two examples of circuit connection between the transistor output of the inverter’s control circuit and a PLC. In example (a), the input circuit of the PLC serves as the sink for the control circuit, whereas in example (b), it serves as the source for the control circuit.
  • Page 39 2.3.8 Switching of SINK/SOURCE (jumper switch) Before changing the jumper switch, wait for at least five minutes after the power has been turned off, then check that the DC link circuit voltage between the terminals P (+) and N (-) does not exceed the safety voltage (+25 VDC) using a multi-meter.
  • Page 40 • Before installing an RS485 Communications Card, turn off the power, wait more than five minutes, and make sure, using a circuit tester or a similar instrument, that the DC link circuit voltage between the terminals P (+) and N (-) has dropped below a safe voltage (+25 VDC).
  • Page 41 2.3.11 Cautions relating to harmonic component, noise, and leakage current (1) Harmonic component Input current to an inverter includes a harmonic component, which may affect other loads and condensive capacitors that are connected to the same power source as the inverter. If the harmonic component causes any problems, connect a DC reactor (option) to the inverter.

  • Page 42: Chapter 3 Operation Using The Keypad

    Chapter 3 OPERATION USING THE KEYPAD 3.1 Keys, Potentiometer, and LED on the Keypad Program/Reset key LED monitor RUN key Potentiometer As shown in the figure at right, the keypad consists of a four-digit LED monitor, a potentiometer (POT), and six keys.
  • Page 43 Simultaneous keying Simultaneous keying means pressing two keys at the same time (expressed by "+"). V6 series supports simultaneous keying as listed below. (For example, the expression " keys" stands for pressing the key while holding down the key.) Table 3.2 Simultaneous Keying...
  • Page 44 *1 In speed monitor, you can have any of the following displayed according to the setting of function code E48: Output Frequency (Hz), Set Frequency (Hz), Load Shaft Speed (r/min), Line Speed (m/min), and Constant Rate of Feeding Time (min) *2 Applicable only when PID control is employed.
  • Page 45 3.2.1 Running mode When the inverter is turned on, it automatically enters Running mode. In Running mode, you can: (1) Monitor the running status (e.g., output frequency, output current); (2) Set up the set frequency and others; (3) Run/stop the motor and; (4) Jog (inch) the motor.
  • Page 46 Figure 3.3 shows the procedure for selecting the desired monitor item and the sub-item for speed monitoring. *1 The speed monitor displays the output frequency (Hz), set frequency (Hz), load shaft speed (rpm), line speed (m/min.), or constant rate of feeding time (min.), depending on the setting of function code E48. *2 The PID-related information will appear only when the inverter is under PID control.
  • Page 47 Table 3.4 lists the display items for the speed monitor that can be chosen with function code E48. Table 3.4 Display Items on the Speed Monitor Function code Speed monitor items Meaning of Displayed Value Output frequency (before slip Before slip compensation compensation) (Hz) (Factory default) Output frequency (after slip...
  • Page 48 Using the keys (1) Set function code F01 to "0: Keypad operation." This can be done only when the remote keypad is in Running mode. (2) Press the key to specify the set frequency. The lowest digit will blink. (3) If you need to change the set frequency, press the key again.
  • Page 49 Make setting under PID control To enable PID control, you need to set function code J01 to 1 or 2. Under the PID control, the items that can be set or checked with the keys are different from those under regular frequency control, depending upon the current LED monitor setting. If the LED monitor is set to the speed monitor (E43 = 0), you may access manual feed commands (Set frequency) with the keys;...
  • Page 50 Setting up the set frequency with the keys under PID control To set the set frequency with the keys under the PID control, you need to specify the following conditions: - Set function code F01 to "0: Keypad operation." - Select frequency command 1 (Frequency settings from communications link: Disabled, and Multistep frequency settings: Disabled) as manual speed command.
  • Page 51 Operational relationship between function code F02 (Running/Stopping and Rotational Direction) and Table 3.7 lists the relationship between function code F02 settings and the key, which determines the motor rotational direction. Table 3.7 Rotational Direction of Motor, Specified by F02 If Function code F02 Pressing the is set to: rotates the motor:...
  • Page 52 3.2.2 Programming mode Programming mode provides you with these functions--setting and checking function code data, monitoring maintenance information and checking input/output (I/O) signal status. The functions can be easily selected with the menu-driven system. Table 3.8 lists menus available in Programming mode.
  • Page 53 Figure 3.4 illustrates the menu transition in Programming mode. * Displayed only when a remote keypad (option) is set up for use. Figure 3.4 Menu Transition in Programming Mode 3-12...
  • Page 54 To set function codes in Menu #1 "Data setting," it is necessary to set function code E52 data to "0" (Function code data setting) or "2" (Full-menu mode). The table below lists the function codes available in the V6 series. The function codes are displayed on the LED monitor on the keypad as shown below.
  • Page 55 Table 3.10 List of V6 Function Codes Function code group Function code Function Description F codes F00 to F51 Basic To be used for basic motor running. (Fundamental functions) functions E codes E01 to E99 Terminal To be used to select the functions of (Extension terminal functions the control circuit terminals.
  • Page 56 Figure 3.5 shows the status transition for Menu #1 "Data setting." Figure 3.5 "Data Setting" Status Transition 3-15...
  • Page 57 Basic key operation This section will give a description of the basic key operation, following the example of the function code data changing procedure shown in Figure 3.6. This example shows you how to change function code F01 data from the factory default "Enable the built-in potentiometer (F01 = 4)"...
  • Page 58 Figure 3.6 Example of Function Code Data Changing Procedure [ 2 ] Checking Changed Function Codes – "Data Checking" Menu #2 "Data checking" in Programming mode allows you to check function codes that have been changed. Only the function code for the data that has been changed from the factory defaults are displayed on the LED monitor.
  • Page 59 * Pressing the key when the data is displayed will take you back to Figure 3.7 "Data Checking" Status Transition (Changes made only to F01, F05, E52) Basic key operation The basic key operation is the same as for "Data setting." To check function codes in Menu #2 "Data checking,"...
  • Page 60 [ 3 ] Monitoring the Running Status – "Drive Monitoring" Menu #3 "Drive monitoring" is used to check the running status during maintenance and test running. The display items for "Drive monitoring" are listed in Table 3.11. Figure 3.8 shows the status transition diagram for "Drive monitoring."...
  • Page 61 Basic key operation Before checking the running status on the drive monitor, set function code E52 to "2" (full-menu mode). (1) When the inverter is powered on, it automatically enters Running mode. In Running mode, press the key to enter Programming mode. The menu for function selection will be displayed.
  • Page 62 Displaying running status To display the running status in hexadecimal format, each state has been assigned to bits 0 to 15 as listed in Table 3.12. Table 3.13 shows the relationship between each of the status assignments and the LED monitor display. Table 3.14 gives the conversion table from 4-bit binary to hexadecimal. Table 3.12 Running Status Bit Allocation Notation Content...
  • Page 63 Hexadecimal expression A 4-bit binary number can be expressed in hexadecimal format (1 hexadecimal digit). Table 3.14 shows the correspondence between the two notations. The hexadecimals are shown as they appear on the LED monitor. Table 3.14 Binary and Hexadecimal Conversion Binary Hexadecimal Binary...
  • Page 64 [ 4 ] Checking I/O Signal Status – "I/O Checking" With Menu #4 "I/O checking," you can display the I/O status of external signals without using a measuring instrument. External signals that can be displayed include digital I/O signals and analog I/O signals.
  • Page 65 Basic key operation Before checking the status of the I/O signals, set function code E52 to "2: Full-menu mode." (1) When the inverter is powered on, it automatically enters Running mode. In Running mode, press the key to enter Programming mode. The menu for function selection will be displayed.
  • Page 66 • If all terminal input signals are OFF (open), segment "g" on all of LEDs 1 to 4 will blink ("– – – –"). • Refer to Chapter 5 "FUNCTION CODES" for details. Table 3.16 Segment Display for External Signal Information Segment LED4 LED3...
  • Page 67 Table 3.17 Segment Display for I/O Signal Status in Hexadecimal Format LED No. LED4 LED3 LED2 LED1 Input (RST)* (XR)* (XF)* X1 REV FWD terminal Output 30AC terminal Binary Hexa- decimal on the monitor – : No corresponding control terminal exists. * (XF), (XR), and (RST) are assigned for communication.
  • Page 68 [ 5 ] Reading Maintenance Information – "Maintenance Information" Menu #5 "Maintenance information" in Programming mode contains information necessary for performing maintenance on the inverter. Table 3.18 lists the maintenance information display items and Figure 3.10 shows the status transition for maintenance information. * The part in the dotted-line box is applicable only when a remote keypad is set up for operation.
  • Page 69 Table 3.18 Maintenance Display Items LED Monitor Contents Description shows: Cumulative run Shows the cumulative power-ON time of the inverter. time Unit: thousands of hours. When the total ON-time is less than 10000 hours (display: 0.001 to 9.999), data is shown in units of one hour. When the total time is 10000 hours or more (display: 10.00 to 65.53), it is shown in units of 10 hours.
  • Page 70 [ 6 ] Reading Alarm Information – "Alarm Information" Menu #6 "Alarm information" in Programming mode shows, in alarm code, the causes of the past 4 alarms. Further, it is also possible to display alarm information that indicates the status of the inverter when the alarm condition occurred.
  • Page 71 Basic key operation Before viewing alarm information, set function code E52 to "2" (full-menu mode). (1) When the inverter is powered on, it automatically enters Running mode. In Running mode, press the key to enter Programming mode. The menu for function selection will be displayed.
  • Page 72 Shows the DC link circuit voltage of the inverter's main circuit. DC link circuit voltage Unit: V (volts) 3-31...
  • Page 73 Table 3.19 Continued LED monitor shows: Contents Description (item No.) Shows the temperature of the heat sink. Max. temperature of heat sink Unit: ºC Terminal I/O signal status (displayed with the ON/OFF of LED segments) Shows the ON/OFF status of the digital I/O terminals. Refer to Signal input terminal "...
  • Page 74 3.2.3 Alarm mode When an abnormal condition occurs, the protective function is invoked to issue an alarm, and the inverter automatically enters Alarm mode. At the same time, an alarm code appears on the LED monitor. Releasing the Alarm and Transferring the Inverter to Running Mode Remove the cause of the alarm and press the key to release the alarm and return to Running mode.
  • Page 75 Figure 3.12 Alarm Mode Status Transition 3-34...
  • Page 76 Chapter 4 RUNNING THE MOTOR 4.1 Running the Motor for a Test 4.1.1 Inspection and preparation prior to the operation Check the following prior to starting the operation. (1) Check if connection is correct. Especially check if the power wires are connected to inverter output terminals U, V and W and that the grounding wire is connected to the ground electrode correctly.
  • Page 77 4.1.3 Preparation before running the motor for a test--Setting function code data Before starting running the motor, set function code data specified in Table 4.1 to the motor ratings and your system design values. For the motor, check the rated values printed on the nameplate of the motor.
  • Page 78 4.1.4 Test run If the user set the function codes wrongly or without completely understanding this Instruction Manual, the motor may rotate with a torque or at a speed not permitted for the machine. Accident or injury may result. Follow the descriptions of the previous Section 4.1.1, "Inspection and Preparation prior to the Operation"...
  • Page 79 FUNCTION CODES 5.1 Function Code Tables Function codes enable the V6 series of inverters to be set up to match your system requirements. Each function code consists of a 3-letter string. The first letter is an alphabet that identifies its group and the following two letters are numerals that identify each individual code in the group.
  • Page 80 Using negative logic for programmable I/O terminals The negative logic signaling system can be used for the digital input and output terminals by setting the function codes specifying the properties for those terminals. Negative logic refers to inverted ON/OFF (logical value 1 (true)/0 (false)) state of input or output signal. An ON-active signal (the function takes effect if the terminal is short-circuited.) in the normal logic system is functionally equivalent to OFF-active signal (the function takes effect if the terminal is opened.) in the negative logic system.
  • Page 81 The following tables list the function codes available for the V6 series of inverters. F codes: Fundamental Functions *1 Values in parentheses ( ) in the above table denote default settings for the EU version except three-phase 200 V se-ries of inverters.
  • Page 83 (Note) The default setting of function code F50 is 999 for less than0.75kW standard models, and 0 for braking resistor built-in type, more than 1.5kW models. E codes: Extension Terminal Functions...
  • Page 84 (Note) Function codes E45 to E47 appear on the LED monitor; however, the V6 series of inverters does not recognize these codes. *1 Values in parentheses ( ) in the above table denote default settings for the EU version. *2 "Standard torque boost," "Nominal rated current of standard motor," and "Nominal rated capacity of standard motor"...
  • Page 86 C codes: Control Functions of Frequency...
  • Page 87 P codes: Motor Parameters H codes: High Performance Functions * "Standard torque boost," "Nominal rated current of standard motor," and "Nominal rated capacity of standard motor" differ depending upon the rated input voltage and rated capacity. Refer to Table 5.1 "Standard Motor Parameters".
  • Page 88 (Note 1) Function code H71 appears on the LED monitor; however, the V6 series of inverters does not recognize this code. (Note 2) Function code H95 is valid on the inverters with ROM versions of C1S11000 or higher. (The lowest four digits of the ROM version can be displayed on the LED monitor.
  • Page 89 J codes: Application Functions y codes: Link Functions * The table below lists the factory settings of "Standard torque boost," "Nominal rated current of standard motor," and "Nominal rated capacity of standard motor" in the "Default setting" column of the above tables. 5-11...
  • Page 90 Table 5.1 Standard Motor Parameters Nominal rated Standard Nominal rated current of capacity of torque standard motor standard motor (A) boost (%) Applicable (kW) Power motor supply Inverter type Function codes rating voltage F11, E34 and P03 (kW) Function code Function code Shipping destination (version) Asia...
  • Page 91 5.2 Overview of Function Codes This section provides an overview of the function codes frequently used for the V6 series of inverter. Data Protection Specifies whether function code data is to be protected from being accidentally changed by keypad operation. If data protection is enabled (F00 = 1), operation to change data is disabled so that no function code data, except F00 data, can be changed from the keypad.
  • Page 92 Running/Stopping and Rotational Direction Selects a source issuing a run command--keypad or external control signal input. - If F02 = 0, 2, or 3, the inverter can run the motor by the keys on the built-in keypad. The motor rotational direction can be specified in two ways, either by control signal input (F02 = 0) or by use of prefixed forward or reverse rotation (F02 = 2 or 3).
  • Page 93 • If you have assigned the (FWD) or (REV) function to the [FWD] or [REV] terminal, you cannot change the setting of function code F02 while the terminals [FWD] and [CM]* or the terminals [REV] and [CM]* are short-circuited. • If you have specified the external signal (F02=1) as the running command and have assigned functions other than the (FWD) or (REV) function to the [FWD] or [REV] terminal, caution should be exercised in changing the settings.
  • Page 94 If F05 is set to match the rated voltage of the motor, motor efficiency will be better than that it is set to 0. Therefore, when brakes are applied to the motor, energy loss decreases and the motor regenerates larger braking energy, which can easily cause the overvoltage protection function ( where n=1 to 3) to be activated.
  • Page 95 V/f pattern with single non-linear point inside the base frequency You can also set the optional non-linear V/f range (H50: Frequency) for frequencies exceeding the base frequency (F40). Acceleration Time 1, Deceleration Time 1 The acceleration time specifies the length of time the frequency increases from 0 Hz to the maximum frequency.
  • Page 96 In case the set frequency is lower than the maximum frequency (F03) The actual acceleration and deceleration times are shorter than the specified acceleration time and deceleration time. • If you choose S-curved acceleration/deceleration or curvilinear acceleration/deceleration in "curvilinear acceleration/deceleration" (H07), the actual acceleration/deceleration times are longer than the specified times.
  • Page 97 Manual torque boost In manual torque boost mode, the inverter maintains the output at a constant level regardless of the load. When you use this mode, select the appropriate V/f pattern (variable torque or constant torque characteristics) with Load Selection (F37). To keep the motor starting torque, manually select optimal inverter output voltage for the motor and load by setting an optimal torque boost rate to F09 in accordance with the motor and its load.
  • Page 98 Use auto-energy saving only where the base frequency is 60 Hz or lower. If the base frequency is higher than 60 Hz, then you may get little or no energy saving effect. The auto energy saving operation is designed for use with the frequency lower than the base frequency.
  • Page 99 Electronic Thermal Simulation for protection of motor F10 to F12 (Select the motor characteristics, overload detection level, and Thermal time constant) F10 through F12 set the thermal characteristics of the motor for electronic thermal simulation, which is used to detect overload conditions of the motor. More specifically, F10 specifies the motor characteristics, F12 the thermal time constant, and F11 the overload detection level.
  • Page 100 - Trip immediately (F14 = 0) If an instantaneous power failure occurs when the inverter is in Running mode so that the inverter detects undervoltage of the DC link circuit, then the inverter immediately stops its output and displays the undervoltage alarm " "...
  • Page 101 This setting is optimal for operations in which the motor speed quickly slows down to 0 rpm due to the heavy load with a very small moment of inertia if the motor coasts to a stop because of the instantaneous power failure. •...
  • Page 102 • When you change the upper frequency limit (F15) in order to increase the running frequency, be sure to change the maximum frequency (F03) accordingly. • Maintain the following relationship among the parameters for frequency control: F03 F15 > F16 F23 F25, or F03 F15 > F16 F25 F23, where, F23 is the starting frequency and F25 is the stopping frequency.
  • Page 103 The relations stated above are indicated in the following expressions. (1) If analog input bias reference point: Frequency Setting Bias (F18) (2) If analog input > bias reference point: Frequency Setting − Gain Bias × input − Gain reference int) Bias reference int)
  • Page 104 H95 specifies the DC braking mode as follows: If H95 is Braking mode Meaning set to: Slow response The DC braking current gradually ramps up. (The torque may not be sufficient at the start of DC braking.) Quick response The DC braking current quickly ramps up. (Depending on the inertia of the moving loads or the coupling state, the revolution may be unstable.) The braking level setting for the three-phase 200V and single-phase...
  • Page 105 F23, F25 Starting Frequency and Stopping Frequency At the startup of an inverter, the initial output frequency is equal to the starting frequency. The inverter stops its output at the stop frequency. Set the starting frequency to a level that will enable the motor to generate enough torque for startup.
  • Page 106 Terminal [FMA] (Gain to output voltage) Analog Output Signal Selection for [FMA] (Monitor object) F31 allows you to output monitored data (such as the output frequency or output current) to terminal [FMA] as an analog DC voltage that can be adjusted with F30 for the meter scale.
  • Page 107 Outputting the output current in an analog format (FMA) (F31 = 2) The analog output terminal [FMA] outputs 10 V, that is, 200% of the reference current I (A), supposing the output gain selected with F30 as 100%. Therefore, to adjust the output voltage, you need to set the output gain at terminal [FMA] (F30) based on the conversion result obtained by the following expression: Conversion formula for calculating the output gain which is required for...
  • Page 108 The limiting level setting for the three-phase 200 V and single-phase 200 V/100 V series should be calculated from the current limiting level I limit based on the reference current I (A), as shown below. limit × Setting (Example) Setting the current limiting level I at 4.2 A for 0.75 kW limit standard motors...
  • Page 109 The following tables list the discharging capability and allowable average loss of the V6 series inverters. These values are determined by inverter model and specifications (built-in or external type) of braking resistors. Built-in braking resistor Continuous braking Repetitive braking Power...
  • Page 110 External braking resistor Standard Models The braking resistor is protected from overheating by a thermal relay incorporated in the braking resistor. Assign "external thermal relay tripped" (THR) to one of the inverter’s digital input terminals [X1], [X2], [X3], [FWD], and [REV], and connect it to the terminals 2 and 1 of the braking resistor. If you choose not to use the thermal relay incorporated in the braking resistor, set up the overheat protection device using the values given in the table below.
  • Page 111 10% ED Models Continuous braking Repetitive braking (Period: 100 sec. or (Braking torque: Braking Power Resist 100%) less) resistor supply Inverter type Q'ty ance acity Discharg- Allowable Braking Duty type voltage (Ω) average time cycle capability loss (%ED) (kWs) (kW) V6 –...
  • Page 112 E01 to E03, Terminal Command Assignment to [X1] to [X3], [FWD] and [REV] E98, E99 E01 to E03, E98 and E99 may assign commands (listed below) to terminals [X1] to [X3], [FWD], and [REV] which are general-purpose programmable input terminals. These function codes may also switch the logic system between normal and negative to define how the inverter logic interprets either ON or OFF status of each terminal.
  • Page 113 Select 3-wire operation command--(HLD) (Function code data = 6) Digital input signal (HLD) may self-hold the forward (FWD)/reverse (REV) run commands given at the external signal input terminals to enable 3-wire inverter operation. Shorting the circuit between the (HLD)-assigned terminal and terminal [CM] (i.e., when (HLD) is ON) will self-hold the (FWD) or (REV) command.
  • Page 114 Simultaneous keying may also make the motor ready for jogging depending upon whether keypad operation or terminal command operation is selected and whether the (JOG) command is on or off, as listed below. When operated from keypad (F02 = 0, 2, or 3) The motor becomes If (JOG) is: keys...
  • Page 115 Switch Normal/Inverse operation--(IVS) (Function code data = 21) Turning the (IVS) command on/off switches the output frequency control between normal (proportional to the set frequency components) and inverse operation for the PID process or manually set frequencies. To select the inverse operation, turn the (IVS) command on.
  • Page 116 E20, E27 Status Signal Assignment to [Y1], [30A], [30B] and [30C] E20 and E27 may assign output signals to terminals [Y1] (transistor switch) and [30A], [30B] and [30C] (mechanical relay contacts) which are general-purpose programmable output terminals. These function codes may also switch the logic system between normal and negative to define how the inverter logic interprets either ON or OFF status of each terminal.
  • Page 117 Undervoltage detection--(LU) (Function code data = 3) This signal is turned on when the DC link circuit voltage of the inverter drops below the specified level or when the motor stops due to activation of the undervoltage protection feature (undervoltage trip). It is turned off if the DC link circuit voltage exceeds the specified level.
  • Page 118 This function provides a tentative information for service life of the parts. If this signal is issued, check the service life of these parts in your system according to the maintenance procedure to determine whether the parts should be replaced or not. To maintain stable and reliable operation and avoid unexpected failures, daily and periodic maintenance must be performed.
  • Page 119 Coefficient for Constant Feeding Rate Time Coefficient for Speed Indication This function code sets a coefficient to be used for setting the constant rate of feeding time, load shaft speed or line speed and for displaying its output status. Coeff. Speed Indication (E50)
  • Page 120 Timer Operation Enables or disables timer operation. If it is enabled, entering a run command will run the inverter to drive the motor for the period preset to the timer. An example of timer operation • Setting up the timer conditions beforehand - Set C21 to 1 to enable timer operation.
  • Page 121 P02, P03 Motor Parameters (Rated capacity and Rated current) Sets the nominal rated capacity that is denoted on the rating nameplate of the motor. For FRN4.0C1 -4 **, the default setting for P02 is 3.7. Motor Parameters (Slip compensation gain) Sets the gain to compensate for the motor slip frequency.
  • Page 122 Data Initialization Initializes the current function code settings to the factory defaults or initializes the motor constants (parameters). To change the H03 data, it is necessary to press the keys or the keys simultaneously. If H03 is set to: Function Disables initialization (Settings made by the user manually will be retained.) Initializes all function code data to the factory defaults...
  • Page 123 If P99 (Motor selection) is set to 0 (Standard 8-series motors) or 4 (Other motors): Rated current (A) Setting range If P99 (Motor selection) is set to: Appli- (kW) Power cable motor supply rating voltage Shipping destination Shipping destination Shipping destination Function (kW) (Version)
  • Page 124 If P99 (Motor selection) is set to 1 (HP motors): Rated current (A) Setting Appli- range If P99(Motor selection) is set to: Power cable (HP) motor supply rating voltage Function Shipping destination (Version) (HP) code Asia Japan 0.01 to 0.10 0.44 0.44 0.44...
  • Page 125 H04, H05 Retry (No. of retries, Latency time) To automatically exit from the alarm status and restart the inverter, use the retry functions. The inverter automatically exits from Alarm mode and restarts without issuing a block alarm even if it has entered the forced Alarm mode. If the inverter has entered Alarm mode many times in excess of the number of times specified by function code H04, it issues a block alarm and does not exit Alarm mode for restarting.
  • Page 126 Curvilinear Acceleration/Deceleration Specifies the acceleration and deceleration patterns (output frequency patterns). Linear acceleration/deceleration The inverter runs the motor with the constant acceleration and deceleration. S-curved acceleration/deceleration To reduce the impact on the inverter-driven motor during acceleration/deceleration, inverter gradually accelerates/decelerates motor both acceleration/deceleration zones.
  • Page 127 Automatic Deceleration The moment a regenerative energy exceeding the braking capacity of inverter is returned during deceleration, the inverter will stop its output and enter overvoltage Alarm mode. If regenerative energy suppressing control is enabled, the inverter lengthens the deceleration time to 3 times the preset time and decreases the deceleration torque to 1/3 when the DC link voltage exceeds the preset voltage suppressing level.
  • Page 128 Start check function The inverter prohibits any run commands to be executed and displays "E 6 " on the LED of keypad when: - The power is first applied. - The key is pressed or the (RST) signal is turned on to cancel the alarm. - Link command (LE) has switched inverter operations.
  • Page 129 (1) First, check that the inverter is correctly wired, referring to Chapter 2, Section 2.3.5 "Wiring for Main Circuit Terminals and Grounding Terminals." (2) Check whether an alarm code is displayed on the LED monitor. If any problems persist after the above recovery procedure, contact your Miki Pulley representative.
  • Page 130 Quick reference table of alarm codes Alarm code Name Refer to Alarm code Name Refer to PTC thermistor for motor p.6-13 protection Overheat protection for Overcurrent protection p.6-9 p.6-14 braking resistor Electronic thermal overload p.6-14 relay Overload protection p.6-15 Memory error p.6-15 Overvoltage protection p.6-10...
  • Page 131 6.2 If No Alarm Code Appears on the LED Monitor 6.2.1 Motor is running abnormally [ 1 ] The motor does not rotate. Possible Causes What to Check and Suggested Measures (1) No power supplied to the Check the input voltage, output voltage and interphase voltage inverter.
  • Page 132 Possible Causes What to Check and Suggested Measures (7) A frequency command Check the higher priority run command with Menu #2 "Data with higher priority than checking" and Menu #4 "I/O checking" using the keypad. the one attempted was Correct any incorrect function code data settings (e.g. active.
  • Page 133 Possible Causes What to Check and Suggested Measures (4) A frequency command Check the settings (data) of the relevant function codes and with higher priority than what frequency commands are being received, through Menu the one attempted (e.g., #1 "Data setting," Menu #2 "Data checking" and Menu #4 "I/O multistep frequency, checking,"...
  • Page 134 [ 4 ] If the speed variation and current vibration (such as hunting) occur at the constant speed Possible Causes What to Check and Suggested Measures (1) The frequency command Check the signals for the frequency command with Menu #4 fluctuated.
  • Page 135 Possible Causes What to Check and Suggested Measures (3) The automatic Check the data of function code H69 (Automatic deceleration deceleration was active. (function selection)). Consider the use of a braking resistor. Increase the deceleration time (F08 and E11). (4) Overload Measure the output current.
  • Page 136 Possible Causes What to Check and Suggested Measures (3) The WE-KP command Check the data of function codes E01, E02, E03, E98 and E99 ("Enable editing of and the input signals with Menu #4 "I/O checking" using the function codes data from keypad.
  • Page 137 6.3 If an Alarm Code Appears on the LED Monitor [ 1 ] Overcurrent protection Problem The inverter output current momentarily exceeded the overcurrent level. Overcurrent occurred during acceleration. Overcurrent occurred during deceleration. Overcurrent occurred when running at a constant speed. Possible Causes What to Check and Suggested Measures (1) The inverter output...
  • Page 138 [ 2 ] Overvoltage protection Problem The DC link circuit voltage was over the detection level of overvoltage. Overvoltage occurs during the acceleration. Overvoltage occurs during the deceleration. Overvoltage occurs during running at constant speed. Possible Causes What to Check and Suggested Measures (1) The power supply voltage Measure the input voltage.
  • Page 139 Possible Causes What to Check and Suggested Measures (2) The power to the inverter Check with LED monitor if the power to the inverter was was switched back on too switched back on although its control circuit was still operating. soon (with F14 = 1) Make the interval longer for re-power on.
  • Page 140 [ 5 ] Output phase loss protection Problem Output phase loss occurred. Possible Causes What to Check and Suggested Measures (1) Inverter output wires are Measure the output current. broken Replace the output wires. (2) Wire for motor winding are Measure the output current.
  • Page 141 [ 7 ] External alarm input Problem External alarm was inputted (THR). Possible Causes What to Check and Suggested Measures (1) An alarm function of the Inspect external equipment operation. external equipment was Remove the cause of the alarm that occurred. activated.
  • Page 142 [ 9 ] Overheat protection for braking resistor Problem Thermal protection for braking resistor activated. Possible Causes What to Check and Suggested Measures (1) Braking load was too Recalculate the relation between the braking load and braking capacity. heavy. Lighten the braking load. Reconsider the choice of the braking resistor in order to improve braking ability.
  • Page 143 [ 11 ] Overload protection Problem Temperature inside inverter rose abnormally. Possible Causes What to Check and Suggested Measures (1) Temperature around the Measure the temperature around the inverter. inverter exceeded that of Lower the temperature (e.g., ventilate the enclosure well). inverter specifications.
  • Page 144 This problem was caused by a problem of the printed circuit board (PCB) (on which the CPU is mounted). Contact your Miki Pulley representative. [ 13 ] Remote keypad communications error Problem A communications error occurred between the remote keypad and the inverter.
  • Page 145 [ 15 ] Operation protection Problem An error occurred due to incorrect operation of the motor. Possible Causes What to Check and Suggested Measures Even though a run command was present at the input (1) The key was pressed terminal or the communication port, the inverter was forced when H96 = 1 or 3.
  • Page 146 (3) The control circuit failed. Check if E F occurs each time power is switched off. This problem was caused by a problem of the printed circuit board (PCB) (on which the CPU is mounted). Contact your Miki Pulley representative. 6-18...
  • Page 147 6.4 If an Abnormal Pattern Appears on the LED Monitor while No Alarm Code is Displayed [ 1 ] – – – – (center bar) appears Problem A center bar (– – – –) has appeared on the LED monitor. Possible Causes What to Check and Suggested Measures (1) When PID control had...
  • Page 148 [ 2 ] _ _ _ _ (under bar) appears Problem An under bar ( _ _ _ _ ) appeared on the LED monitor when you pressed the or entered a normal start/stop command (FWD) or a reverse start/stop command (REV).
  • Page 149 Chapter 7 MAINTENANCE AND INSPECTION Perform daily and periodic inspection to avoid trouble and keep reliable operation for a long time. Take care of the following items during work. • The electric charge in the DC bus capacitor may be present even after the power is turned off. Therefore, it may take a long time until the DC link circuit voltage reaches a safety potential.
  • Page 150 Table 7.1 List of Periodic Inspections Check part Check item How to inspect Evaluation criteria 1) Check the ambient 1) Check visually or 1) The standard Environment temperature, humidity, measure using specification must vibration and atmosphere apparatus. be satisfied. (dust, gas, oil mist, or water drops).
  • Page 151 Table 7.1 Continued Check part Check item How to inspect Evaluation criteria Filtering 1) Check for electrolyte leakage, 1),2) 1),2) capacitor discoloration, cracks and Visual inspection No abnormalities swelling of the case. (Note) 2) Check if the safety valve does not protrude remarkably.
  • Page 152 Judgement of service life using maintenance information Menu #5 "Maintenance information" in Programming mode can be used to display data for the judgement of replacement of "DC bus capacitor," "electrolytic capacitor on the printed circuit board," and "cooling fan" as a guide. If the replacement data is out of the judgement level for early warning, an early warning signal is output to an external device through terminal [Y1] (function code E20).
  • Page 153 (2) Electrolytic capacitor on the printed circuit board The inverter keeps an accumulative total of the number of hours that power has been applied to the control circuit and displays it on the LED monitor. Use this to determine when the capacitor should be replaced.
  • Page 154 7.3 Measurement of Electrical Amounts in Main Circuit Because the voltage and current of the power supply (input, primary circuit) of the main circuit of the inverter and those of the motor (output, secondary circuit) include harmonic components, the readings may vary with the type of the meter. Use meters indicated in Table 7.3 when measuring with meters for commercial frequencies.
  • Page 155 A dielectric strength test will cause breakage of the inverter similarly to the Megger test if the test procedure is wrong. When the dielectric strength test is necessary, contact your Miki Pulley representative.
  • Page 156 MFG No. (serial number of equipment) Function codes and their data that you changed ROM version * Refer to the V6 series Manual, Chapter 3.2.2 [5]. Date of purchase Inquiries (for example, point and extent of breakage, uncertainties, failure phenomena, and...

  • Page 157: Chapter 8 Specifications

    Chapter 8 SPECIFICATIONS 8.1 Standard Models *1 4-pole standard motors *2 The rated capacity is for 220 V output voltage. *3 Output voltages cannot exceed the power supply voltage. *4 Use the inverter at the current given in ( ) or below when the carrier frequency command is higher than 4 kHz (F 26 =4 to 15) or the ambient temperature is 40°C or higher.
  • Page 158 8.2 Common Specifications...
  • Page 160 8.3 Terminal Specifications 8.3.1 Terminal functions For details about the main and control circuit terminals, refer to Chapter 2, Section 2.3.5 and Section 2.3.7 (Table 2.8), respectively. 8.3.2 Connection diagram in operation by external signal inputs (Note 1) Install a recommended molded case circuit breaker (MCCB) or a residual-current-operated protective device (RCD) earth leakage circuit breaker (ELCB) (with overcurrent protection) in the primary circuit of the inverter to protect wiring.
  • Page 161 (Note 5) Frequency can be set by connecting a frequency setting device (external potentiometer) between the terminals [11], [12], and [13] instead of inputting voltage signal (0 to +10 VDC or 0 to +5 VDC) between the terminals [12] and [11]. (Note 6) For the wiring of the control circuit, use shielded or twisted wires.
  • Page 162 8.4 External Dimensions 8.4.1 Standard models and models available on order (braking resistor built-in type)
  • Page 164 8.5 Protective Functions Alarm Name Description monitor output displays [30A,B,C] Overcurrent - Stops the inverter output to protect the During O C 1 protection inverter from an overcurrent resulting from acceleration overload. O C 2 During - Stops the inverter output to protect the deceleration inverter from an overcurrent due to a short During running...
  • Page 165 Alarm Name Description monitor output displays [30A,B,C] - A PTC thermistor input stops the inverter output for motor O H 4 thermistor protection. A PTC thermistor is connected between terminals [C1] and [11], and a 1-kΩ external resistor is connected between terminals [13] and [C1].
  • Page 166 Alarm output Name Description monitor [30A,B,C] displays Operation Start Inverters prohibit any run operations and displays Protection check "E 6 " on the LED of keypad if any run command is function present when: - Powering up - An alarm ( key turned on) is released or an alarm reset (RST) is input.

  • Page 167: Chapter 9 List Of Peripheral Equipment And Options

    Chapter 9 LIST OF PERIPHERAL EQUIPMENT AND OPTIONS The table below lists the main peripheral equipment and options that are connected to the V6 series. Use them in accordance with your system requirements. Name of peripheral Function and application equipment...
  • Page 168 Name of peripheral Function and application equipment Molded case circuit breaker Earth leakage When connecting the inverter to the power supply, add a recommended circuit breaker * molded case circuit breaker and earth leakage circuit breaker* in the path * with overcurrent of power supply.
  • Page 169 Name of option Function and application Braking resistors A braking resistor converts regenerative energy generated from deceleration (Standard model) of the motor and converts it to heat for consumption. Use of a braking (DBRs) resistor results in improved deceleration performance of the inverter. DC reactors A DCR is mainly used for power supply normalization and for supplied (DCRs)
  • Page 170 Name of option Function and application Ferrite ring reactors for An ACL is used to reduce radio noise emitted by the inverter. reducing radio An ACL suppresses the outflow of high frequency harmonics caused by frequency noise switching operation for the power supply (primary) lines inside the (ACL) inverter.
  • Page 171 Chapter 10 APPLICATION OF DC REACTORS (DCRs) If connected to a DC reactor specified in Table 10.1, the V6 series of inverters is compliant with the "Japanese Guideline for Suppressing Harmonics in Home and General-purpose Appliances" issued by Public Utilities Department, Agency of Natural Resources and Energy of Japan in the Ministry of...
  • Page 172 MEMO...
  • Page 173 MEMO...
  • Page 174 Copyright © 2002-2004 Miki Pulley Co., Ltd. All rights reserved. No part of this publication may be reproduced or copied without prior written permission from Miki Pulley Co., Ltd. All products and company names mentioned in this manual are trademarks or registered trademarks of their respective holders.
  • Page 175 Miki Pulley Co., Ltd. 461 Imaiminami, Nakahara-ku, Kawasaki, Kanagawa, 211-8577, Japan Phone: +81 44 733 4371 Fax: +81 44 711 2431 http://www.mikipulley.co.jp/ 2004-1 (A04b/J02) 50CM [ IBD#D-I-25-B ]...

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