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RKC INSTRUMENT THV-10 Instruction Manual

Single-phase thyristor unit 20 a/30 a/45 a/ 60 a/80 a/100 a
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*00584294*
Single-phase Thyristor Unit
20 A/30 A/45 A/
60 A/80 A/100 A
THV-10
Instruction Manual
IMR02W05-E1
RKC INSTRUMENT INC.
®

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Summary of Contents for RKC INSTRUMENT THV-10

  • Page 1 *00584294* Single-phase Thyristor Unit 20 A/30 A/45 A/ 60 A/80 A/100 A THV-10 Instruction Manual IMR02W05-E1 RKC INSTRUMENT INC. ®...
  • Page 2  Windows is a trademark of Microsoft Corporation.  Modbus is a registered trademark of Schneider Electric.  Company names and product names used in this manual are the trademarks or registered trademarks of the respective companies. All Rights Reserved, Copyright  2020, RKC INSTRUMENT INC.

  • Page 3: Safety Precautions

    Safety Precautions  Pictorial Symbols (safety symbols) Various pictorial symbols are used in this manual to ensure safe use of the product, to protect you and other people from harm, and to prevent damage to property. The symbols are described below. Be sure you thoroughly understand the meaning of the symbols before reading this manual.
  • Page 4 Prevent metal fragments or lead wire scraps from falling inside instrument case to avoid electric shock, fire or malfunction. Tighten each terminal screw to the specified torque found in the manual to avoid electric shock, fire or malfunction.  This product is intended for use with industrial machines, test and measuring equipment. (It is not designed for use with medical equipment and nuclear energy plant.) ...

  • Page 5: Symbols

    Symbols  Pictorial Symbols (safety symbols) : This mark indicates important information on installation, handling and operating procedures. : This mark indicates supplemental information on installation, handling and operating procedures. : This mark indicates where additional information may be located. ...

  • Page 6: Document Configuration

    20 A/30 A/45 A/ 60 A/ 80 A/100 A IMR02W04-E This manual is enclosed with instrument. This manual explains the basic key operation, THV-10 Quick Operation Manual mode menu, and data setting. 20 A/30 A/45 A/ 60 A/ 80 A/100 A IMR02W05-E1 This manual you are reading now.

  • Page 7: Table Of Contents

    Contents Page NOTICE Safety Precautions ..........................i-1  Pictorial Symbols (safety symbols) ....................i-1 WARNING ............................i-1 CAUTION ............................i-2 For Proper Disposal ..........................i-2 Symbols ..............................i-3  Pictorial Symbols (safety symbols) ....................i-3  Character Symbols ........................i-3 Document Configuration ........................
  • Page 8 Page 3. WIRING ................3-1 Chapter 3 describes wiring cautions and shows examples of wiring. 3.1 Circuit Block Diagram ................... 3-2 3.2 Wiring Cautions .................... 3-3 3.3 Wiring of Main Circuit ................... 3-4 3.4 Wiring of Input Signal ................... 3-7 3.4.1 Wiring method of input signal ..................
  • Page 9 Page 5. MODE SWITCHING AND PARAMETER SWITCHING ..5-1 Chapter 5 describes various mode types, how to switch between them, and how to change the set values. 5.1 Switching the Mode ..................5-2 5.2 Switching Parameters Within the Same Mode ..........5-4 5.2.1 Switching the monitor screen (Monitor mode A ) ............
  • Page 10 Page 7.2 Manual Mode ....................7-4 7.2.1 Description of function ..................... 7-4 7.2.2 Setting contents ......................7-5 7.2.3 Setting procedure ......................7-7 7.3 Gradient Setting Function ................7-8 7.3.1 Description of function ..................... 7-8 7.3.2 Setting contents ......................7-9 7.3.3 Setting procedure ......................7-9 7.4 Contact Input (DI) ..................
  • Page 11 Page 8.7 Retransmission Output (AO) ............... 8-27 8.7.1 Description of function ....................8-27 8.7.2 Setting contents ......................8-28 8.7.3 Setting procedure ......................8-29 8.8 Current Limit Function ................8-30 8.8.1 Description of function ....................8-30 8.8.2 Setting contents ......................8-31 8.8.3 Setting procedure ......................
  • Page 12 Page 9.2 Non-linear Resistance Heater Break Alarm ..........9-30 9.2.1 Description of function ....................9-30 9.2.2 Setting contents ......................9-32 9.2.3 Setting example of Non-linear resistance heater break alarm ........9-37 9.2.4 Conversion table for output limiter high value at the time of automatic detection of knee points ............9-47 9.3 Power Frequency Monitoring Function ............
  • Page 13 Page 10.6 ROM Version ..................10-21 10.6.1 Description of function ....................10-21 10.6.2 Display items ......................10-21 10.6.3 Checking procedure ....................10-22 10.7 Set Data Lock ..................10-23 10.7.1 Description of function ....................10-23 10.7.2 Setting contents ......................10-26 10.7.3 Setting procedure ...................... 10-26 11.

  • Page 14: Pictorial Table Of Contents

    Pictorial table of contents It shows the corresponding pages for functions that are mainly related to hardware. Loader communication Front keys connector Operation and settings Connection for Loader ·················· P. 5-2 communication connector ················· P. 3-19 Retransmission output connector (optional) * Input/Output Wiring of Retransmission connector...

  • Page 15: Outline

    OUTLINE This chapter describes features, package contents, model code, etc. 1.1 Features ................... 1-2 1.2 Checking the Product ............... 1-4 1.3 Checking the Model Code ..............1-5 1.4 Preparation Before Operation ............1-8 IMR02W05-E1...

  • Page 16: Features

    1. OUTLINE 1.1 Features This instrument is a single-phase thyristor unit for power supply voltage (load) 100 to 240 V AC. It is possible to adjust power supplied to heaters, etc. by the signal from the controller or the setting of the setter (potentiometer) or front keys.
  • Page 17 1. OUTLINE  Product with current detector (optional) For instruments with a current detector, the following functions can be selected when ordering.  Constant current control/Power proportional control  Current limit function  Heater break alarm/Thyristor break-down alarm  Non-linear resistance heater break function ...

  • Page 18: Checking The Product

    Before using this product, check each of the following:  Model code  Check that there are no scratch or breakage in THV-10 external appearance (case, heat radiation fin, front panel, terminal, etc.)  Check that all of the items delivered are complete (Refer to below)

  • Page 19: Checking The Model Code

    1. OUTLINE 1.3 Checking the Model Code Use the following list of codes to check whether the product you have is the one you ordered. Please contact our sales office or distributor if there is any difference from the desired specifications. ...
  • Page 20 1. OUTLINE  Accessories (Codes for ordering separately) When you order an accessory, please specify it with the following code.  Common accessories Code Details Setter (potentiometer, knob, and scale plate) THV1P-S01 THV1P-C01 Plug connector for input/output THV1P-C02 Plug connector for retransmission output THV1P-C03 Plug connector for communication THVP-V01...
  • Page 21 1. OUTLINE  60 A types Fuse Code UL Standard Details rating* THVP-F62 Fuse unit for 60 A (fast-blow fuse and holder [1 circuit type]) 75 A Not UL THVP-F60 Fast-blow fuse for 60 A [1 circuit type] 75 A certified ...

  • Page 22: Preparation Before Operation

    THV-10. Refer to 3. WIRING (P. 3-1) Turn on the instrument power supply of THV-10. Turning on the instrument power supply of THV-10 I want an output mode that matches the characteristics of the load (during phase control only) Change the output mode when using a load whose resistance value changes with temperature change or aging.
  • Page 23 1. OUTLINE I would like to change the output voltage (%) of THV-10 The output voltage (%) can be changed using the “Internal gradient setting (IG)” parameter or the external gradient setter.  Internal gradient setting Setting mode Press the...
  • Page 24 1. OUTLINE I would like to detect the heater break This setting is used to detect the heater break alarm (type 1) during phase control. You can set with the following parameters. Press the  key for 2 Monitor Mode Setting mode seconds while ...
  • Page 25 1. OUTLINE I would like to change the function from outside Functions can be selected by contact input (DI). For setting, refer to 7.4 Contact Input (DI) (P. 7-10). I would like to change the control type or output setting For changing, refer to the explanation given in Chapter 8 CONTROL AND OUTPUT FUNCTION (P.
  • Page 26 MEMO 1-12 IMR02W05-E1...

  • Page 27: Mounting

    MOUNTING This chapter describes mounting cautions, dimensions and mounting procedures. 2.1 Mounting Environment ..............2-2 2.2 Mounting Cautions ................2-4 2.3 Outer Dimensions and Mounting Dimensions ........2-6 2.4 Mounting Procedures ..............2-11 IMR02W05-E1...

  • Page 28: Mounting Environment

    2. MOUNTING 2.1 Mounting Environment WARNING  To prevent electric shock or instrument failure, always turn off the power of the entire system before mounting or removing the instrument.  Since this instrument generates a lot of heat, installing it in a direction other than the specified direction may cause an accident or failure.
  • Page 29 2. MOUNTING (3) Do not use this instrument in the following environment:  Sudden change in ambient temperature  Condensation or icing  Corrosive or inflammable gases  Such a place where there are inflammable materials near this instrument  Strong vibration or impact ...

  • Page 30: Mounting Cautions

    2. MOUNTING 2.2 Mounting Cautions Take the following points into consideration when mounting this instrument.  The instrument must be mounted in a proper direction. When installing the instrument, observe mounting directions. 20 A/30 A type Vertical direction Bottom 45 A/60 A type Vertical direction Bottom...
  • Page 31 2. MOUNTING  Radiation space The instrument requires radiation space above and below it. Allow minimum 200 mm clearance. Moreover, consider working space as well. (The diagram shows 20 A/30 A types. The same space is required for the other types.) 200 mm or more 200 mm or more 200 mm or more...

  • Page 32: Outer Dimensions And Mounting Dimensions

    2. MOUNTING 2.3 Outer Dimensions and Mounting Dimensions  20 A/30 A type Outer dimensions Unit: mm Mounting dimensions Unit: mm 50 * 2-M5 * Minimum space when mounted closely side by side. IMR02W05-E1...
  • Page 33 2. MOUNTING  45 A/60 A type Outer dimensions Unit: mm Mounting dimensions Unit: mm 70 * 2-M5 * Minimum space when mounted closely side by side. IMR02W05-E1...
  • Page 34 2. MOUNTING  80 A/100 A type Outer dimensions Unit: mm Mounting dimensions Unit: mm 104 0.2 120 * 4-M5 * Minimum space when mounted closely side by side. IMR02W05-E1...
  • Page 35 2. MOUNTING  Setter [potentiometer, knob, and scale plate] (THV1P-S01) Unit: mm 40 50 60 M9  0.75  14.8     16.1 13.5 10 10  Knob Potentiometer (Resistance 5 k, variation characteristic: B) Scale plate Turn the potentiometer counterclockwise fully before combining it with the scale plate.
  • Page 36 2. MOUNTING  Fuse unit [holder: 1 circuit type] (THVP-H02)  For 20 A/30 A/45 A  For 60 A/80 A/100 A Unit: mm 2-M10 2-M6 Insulation cover Insulation cover  UL certified fuse holder for 20 A/30 A [1 circuit type] (THVP-H04) Unit: mm 52.5 74.8...

  • Page 37: Mounting Procedures

    2. MOUNTING 2.4 Mounting Procedures Prepare the holes as specified in mounting dimensions. Place the instrument so that the mounting positions in the top and bottom of the instrument are aligned with the prepared holes. Insert the mounting screws into the holes, then tighten them with a screwdriver. ...
  • Page 38 MEMO 2-12 IMR02W05-E1...

  • Page 39: Wiring

    WIRING This chapter describes wiring cautions and shows examples of wiring. 3.1 Circuit Block Diagram ..............3-2 3.2 Wiring Cautions ................3-3 3.3 Wiring of Main Circuit ............... 3-4 3.4 Wiring of Input Signal ............... 3-7 3.5 Wiring for Input/Output Connector ..........3-10 3.6 Wiring for Retransmission Output Connector .........

  • Page 40: Circuit Block Diagram

    3. WIRING 3.1 Circuit Block Diagram Retransmission output (AO) Input/output connector connector AO (+) External Recorder gradient setting AO (−) Snubber circuit External manual setting Communication connector DI (+) Contact input (DI) Current measurement T/R (A) DI (−) Host computer DO (+) Diode T/R (B)

  • Page 41: Wiring Cautions

    3. WIRING 3.2 Wiring Cautions To prevent electric shock and instrument failure, do not turn on the power until all wiring is completed. Make sure that the wiring is correct before applying power to the instrument.  When wiring, make sure to match the phases of the main circuit (2/T1) and power supply terminal (No.

  • Page 42: Wiring Of Main Circuit

    3. WIRING 3.3 Wiring of Main Circuit  In order to comply with the European EMC and low voltage directives, the noise filter should be applied. The noise filter specified (SOSHIN ELECTRIC CO., LTD.) 20 A: LF2030A-NH 45 A: HF2050A-UP 80 A: HF2080A-UP 30 A: LF2030A-NH 60 A: HF2060A-UP...
  • Page 43 3. WIRING Caution for connecting a noise filter to the load side of the instrument   When the control of this instrument is started without connecting a load in a configuration where a noise filter is connected to the load side of the instrument, a large surge may occur to the noise filter and a damage of the instrument may result.
  • Page 44 3. WIRING Caution for connecting a transformer to the load side of the instrument   When a protection function for control of primary side of a transformer is not provided: If the action of the device is influenced by excessive current (rush current, current due to flux saturation of transformer), use a transformer 1.25 T (magnetic flux density) or less.

  • Page 45: Wiring Of Input Signal

    Refer to P. 3-3 for solderless terminals for wiring and recommended tightening torque. 3.4.1 Wiring method of input signal Input impedance of THV-10 input terminals Approx. 50 Ω In case of current input: In case of voltage input or voltage pulse input: Approx. 30 kΩ...

  • Page 46: Wiring Example Of The Series Connection (For Current Input)

    100 to 240 V AC (50/60 Hz) The number of THV-10 that can be connected to one temperature controller depends on the allowable load resistance of the temperature controller. For resistance of the controller, refer to specification of the temperature controller instruction manual.

  • Page 47: Wiring Example Of The Parallel Connection (For Voltage Input Or Voltage Pulse Input)

    100 to 240 V AC (50/60 Hz) The number of THV-10 that can be connected to one temperature controller depends on the allowable load resistance of the temperature controller. For resistance of the controller, refer to specification of the temperature controller instruction manual.

  • Page 48: Wiring For Input/Output Connector

    3. WIRING 3.5 Wiring for Input/Output Connector The input/output connector is used for the following wiring. • External gradient setting • External manual setting • Contact input (DI) • Alarm output 3.5.1 Input/Output connector pin numbers and details Input/Output connector (socket) Pin number Description...

  • Page 49: Wiring Of External Gradient Setter

    3.5.3 Wiring of external gradient setter THV-10 External gradient setter Input/Output connector pin number Terminal number of potentiometer THV-10 input terminal number Controller 3.5.4 Wiring of external manual setter  Only external manual setter THV-10 External manual setter Input/Output connector pin number...
  • Page 50  External manual setter (with input signal transfer) THV-10 External manual setter Input/Output connector pin number Terminal number of potentiometer DI (+) THV-10 input terminal number Contact input (DI) Input signal transfer Open: Auto mode Closed: Manual mode − DI ( Controller For the allocation of the Contact input (DI) function, refer to “7.4 Contact input (DI)

  • Page 51: Wiring Of Contact Input (Di)

    3. WIRING 3.5.5 Wiring of contact input (DI) THV-10 DI (+) Input/Output connector pin number Contact input (DI) − DI ( For the allocation of the Contact input (DI) function, refer to “7.4 Contact input (DI) (P. 7-10).” 3-13 IMR02W05-E1...

  • Page 52: Wiring Of Input Signal Transfer (With External Gradient Setter)

    External manual setter External gradient setter THV-10 External manual setter Input/Output connector pin number Terminal number of potentiometer DI (+) THV-10 input terminal number Contact input (DI) Input signal transfer Open: Auto mode Closed: Manual mode − DI ( Controller For the allocation of the Contact input (DI) function, refer to “7.4 Contact input (DI)

  • Page 53: Wiring Of Contact Input

    3. WIRING 3.5.7 Wiring of contact input The ON/OFF signal of the controller turns on and off the output of THV-10. THV-10 ON/OFF signal (Relay contact output) Controller Input/Output connector pin number NO: Normally open Common To use the contact input, the following parameters must be configured.

  • Page 54: Wiring Of Alarm Output

    3. WIRING 3.5.8 Wiring of alarm output A diode should be used and connected as show in the diagram, when using a relay. THV-10 Relay Diode DO (+) Input/Output connector pin number DO (−) The alarm output needs to be set for the alarm type.

  • Page 55: Wiring For Retransmission Output Connector

    Stranded leadwires: AWG24-16 (cross-section 0.25 to 1.5 mm Stripping length: 10 mm Stripping length Plug connector for 10 mm retransmission output 3.6.3 Wiring for retransmission output connector example THV-10 AO ( Analog voltmeter − − AO ( Retransmission output connector pin number...

  • Page 56: Wiring For Communication Connector

    Stranded leadwires: AWG24-20 (cross-section 0.25 to 0.5 mm Stripping length: 6 mm Stripping length Plug connector for 6 mm communication For communication connector connection, refer to 20 A/30 A/45 A/60 A/80 A/100 A THV-10 Host Communication Instruction Manual (IMR02W06-E). 3-18 IMR02W05-E1...

  • Page 57: Connections For Loader Communication

    “Based on ANSI X3.28-1976 subcategories 2.5 and A4.”  Communication setting of the personal computer • Loader communication can be used on a THV-10 even (The following values are all fixed) when the Communication function (optional) is not installed. Communication speed: 38400 bps...
  • Page 58 3. WIRING When using the loader communication, USB driver for COM-K2 must be installed on the personal computer. USB driver for COM-K2 can be downloaded from the official RKC website. https://www.rkcinst.co.jp/english/download-center/ When the power of the instrument is turned off, you can supply power to the instrument from COM-K2-1.

  • Page 59: Wiring Method Of Ul Certified Fuse Holder

    3. WIRING 3.9 Wiring Method of UL Certified Fuse Holder 1. Loosen the screws on the front panel. 2. Confirm the location and insert a leadwire. Leadwire of the main circuit (1/L1) 3. Tighten the screw on the front panel. Perform the wiring to the bottom side in the same way as in 1, 2 and 3.
  • Page 60 MEMO 3-22 IMR02W05-E1...

  • Page 61: Parts Description

    PARTS DESCRIPTION This chapter describes names of parts of this instrument. 4.1 Parts Description ................4-2 IMR02W05-E1...

  • Page 62: Parts Description

    4. PARTS DESCRIPTION 4.1 Parts Description This section describes the names and functions of display and operating keys located on the front panel of the instrument. NOTE To avoid damage to the instrument, never use a sharp object to press keys. 20 A/30 A type ...
  • Page 63 4. PARTS DESCRIPTION Name Description Display Parameter symbols, input signal values, or various setting values are displayed. Unit display Units of input signal values and units of various set values are displayed. • SET: Indication lamps Lights up during the Setting mode Parameter select mode B or Engineering mode D .
  • Page 64 MEMO IMR02W05-E1...

  • Page 65: Mode Switching And Parameter Switching

    MODE SWITCHING AND PARAMETER SWITCHING This chapter describes various mode types, how to switch between them, and how to change the set values. 5.1 Switching the Mode ................5-2 5.2 Switching Parameters Within the Same Mode ......... 5-4 5.3 Changing and Registering the Set Value ......... 5-8 5.4 List of Parameter Operations ............

  • Page 66: Switching The Mode

    5. MODE SWITCHING AND PARAMETER SWITCHING 5.1 Switching the Mode Modes of this instruments are divided into the following four types. You can switch the mode by operating the  key and the  key. Automatically Display rated current Power Show for about 2 seconds supply on (Refer to P.
  • Page 67 5. MODE SWITCHING AND PARAMETER SWITCHING  Display rated current The instrument displays the rated current immediately after the power is turned on. Example: When the rated current of the instrument is “45 A” Power supply on Display rated current Type Automatically 20 A type...

  • Page 68: Switching Parameters Within The Same Mode

    5. MODE SWITCHING AND PARAMETER SWITCHING 5.2 Switching Parameters Within the Same Mode 5.2.1 Switching the monitor screen (Monitor mode A ) 1. 8. Select Monitor screen φ  Every time the SET key ( ) is pressed, the screen goes to the next monitor screens.

  • Page 69: Switching The Setting Screen (Parameter Select Mode B , Setting Mode C )

    5. MODE SWITCHING AND PARAMETER SWITCHING 5.2.2 Switching the setting screen (Parameter select mode B , Setting mode C ) 1. 8. C. M. Select setting item φ Every time the SET key ( ) is pressed, the screen goes to the next parameter ...

  • Page 70: Switching The Setting Screen (Engineering Mode D )

    5. MODE SWITCHING AND PARAMETER SWITCHING 5.2.3 Switching the Setting Screen (Engineering mode D ) NOTE Once the parameters in the Engineering mode D are set correctly, no further changes need to be made to parameters for the same application under normal conditions. Parameter screens of functions that were not specified when you placed the order will not appear.
  • Page 71 5. MODE SWITCHING AND PARAMETER SWITCHING 1. 0. 0. 0. Enter setting screen φ Pressing the shift key (  ) will change the display from the parameter screen to the setting screen. Then, the parameter becomes adjustable. Example: Switch the screen to the output mode for phase control setting Output mode for phase control (oS) (Parameter screen)

  • Page 72: Changing And Registering The Set Value

    5. MODE SWITCHING AND PARAMETER SWITCHING 5.3 Changing and Registering the Set Value 1. 0. Change numerals φ The highlighted digit indicates which digit can be set. The set value can be adjusted by pressing UP (  ) and DOWN (  ) keys. Numerical increase Numerical decrease 1.
  • Page 73 5. MODE SWITCHING AND PARAMETER SWITCHING Register the set value 1. 0. φ For registering the revised value, make sure to press the SET key (  The display changes to the next parameter and the new value will be stored. Setting screen Parameter screen 1.

  • Page 74: List Of Parameter Operations

    5. MODE SWITCHING AND PARAMETER SWITCHING 5.4 List of Parameter Operations Power supply on Automatically Display rated current 1. 2. Display for about 2 seconds Automatically Monitor mode Phase angle CT input Power value Power frequency External gradient Input signal Control input ratio monitor monitor...
  • Page 75 5. MODE SWITCHING AND PARAMETER SWITCHING  Operation of parameters within parameter select mode From Monitor mode (P. 5-10)  Press the key for 2 seconds while keeping  key pressed Parameter select mode Internal Soft-start Soft-down Output limiter Output limiter Base-up set gradient set Control method...
  • Page 76 5. MODE SWITCHING AND PARAMETER SWITCHING From Setting mode (P. 5-10)   Press the key for 2 seconds while keeping the key pressed Engineering mode When you turn on the device for the first time, set data lock is active in the Engineering mode To F.10 From F.10 To change the Engineering mode...
  • Page 77 5. MODE SWITCHING AND PARAMETER SWITCHING From Function block F4 (P.5-12) Engineering mode To F.4 From F.4 Integrated Integrated Function Default display Display off operation time operation time ROM version ROM version block 5 selection timer [upper 3 digits] [lower 3 digits] (High-order) (Low-order) ...
  • Page 78 5. MODE SWITCHING AND PARAMETER SWITCHING From Function block F9 (P.5-13) Engineering mode To F.9 From F.9 Function Parameter Parameter Parameter Parameter Parameter Parameter block 10 select setting 1 select setting 2 select setting 3 select setting 4 select setting 5 select setting 6 ...

  • Page 79: Parameter List

    PARAMETER LIST This chapter describes displays, names and data ranges of each parameter. 6.1 Reading the Table ................6-2 6.2 Monitor Mode A ................6-3 6.3 Parameter Select Mode B ............6-4 6.4 Setting Mode C ................6-7 6.5 Engineering mode D ..............6-9 IMR02W05-E1...

  • Page 80: Reading The Table

    6. PARAMETER LIST 6.1 Reading the Table User Symbol Name Data range Factory set set value value (1) No.: This is the screen number used when registering the screen to be displayed in parameter select mode B . Can be registered in “Parameter select setting” of engineering mode D . Parameters without numbers cannot be registered in “Parameter select setting”.

  • Page 81: Monitor Mode A

    6. PARAMETER LIST 6.2 Monitor Mode A User Symbol Name Display range Factory set value set value ⎯ Input signal monitor 0.0 to 100.0 % ⎯ ⎯ (M1) ⎯ ⎯ Phase angle ratio monitor 0.0 to 100.0 % ⎯ (PA) CT input monitor * 0.0 to 40.0 A (20 A type)

  • Page 82: Parameter Select Mode B

    6. PARAMETER LIST 6.3 Parameter Select Mode B Up to 22 screens registered in “Parameter select setting” of engineering mode can be displayed. In the initial state, the following parameters are registered in “Parameter select setting” of engineering mode User Symbol Name Data range...
  • Page 83 6. PARAMETER LIST Continued from the previous page. Parameter select mode B User Symbol Name Data range Factory set value set value Contact input (DI) 0: No function function assignment 1: Control method (C1) Open: Phase control Closed: Zero-cross control 2: Input signal transfer Open: Auto mode Closed: Manual mode...
  • Page 84 6. PARAMETER LIST Continued from the previous page. Parameter select mode B User Symbol Name Data range Factory set value set value Alarm type selection 0: Type 1 (constant resistance type, deviation alarm) (A1) 1: Type 2 (linearity resistor type, absolute value alarm) 2: Non-linear resistance heater break alarm (non-linear resistance type, deviation information)

  • Page 85: Setting Mode C

    6. PARAMETER LIST 6.4 Setting Mode C User Symbol Name Display or data range Factory set value set value Internal manual set value 0.0 to 100.0 % (IM) If the power is turned off, internal manual set value is reset to “0.0.” Internal gradient set value 0.00 to 2.00 1.00...
  • Page 86 6. PARAMETER LIST Continued from the previous page. Setting mode User Symbol Name Display or data range Factory set value set value Heater break alarm 2 Type 1 and non-linear resistance heater break setting * alarm: (H2) 0 to 100 % of the reference current Type 2: 0 to 100 % of maximum load current value 0: Heater break alarm 2 unused...

  • Page 87: Engineering Mode D

    6. PARAMETER LIST 6.5 Engineering Mode D In engineering mode, the set data lock is set to “Lock (cannot be set)” at the time of shipment. To change the engineering mode parameters, the set data lock must be released.  Function block 1 User Symbol Name...

  • Page 88: Function Block 2

    6. PARAMETER LIST  Function block 2 User Symbol Name Data range Factory set value set value F. 2 ⎯ Function block 2 ⎯ ⎯ ⎯ (F.2) Control method 0: Phase control (CM) 1: Zero-cross control (continuous) 2: Zero-cross control (input synchronous type) Input signal type selection 0: 4 to 20 mA DC...

  • Page 89: Function Block 3

    6. PARAMETER LIST  Function block 3 User Symbol Name Data range Factory set value set value F. 3 ⎯ Function block 3 ⎯ ⎯ ⎯ (F.3) Output mode for phase control 0: Proportional phase angle to input (oS) 1: Proportional voltage to input 2: Proportional square voltage (electric power) to input 3: Constant current control: (current feedback)

  • Page 90: Function Block 5

    6. PARAMETER LIST  Function block 4 User Symbol Name Data range Factory set value set value F. 4 ⎯ Function block 4 ⎯ ⎯ ⎯ (F.4) Alarm output logic 0 to 191 (L1) No output Heater break alarm 1 Thyristor break-down alarm 1 Heater break alarm 2 Thyristor break-down alarm 2...

  • Page 91: Function Block 7

    6. PARAMETER LIST  Function block 5 User Symbol Name Data range Factory set value set value F. 5 ⎯ Function block 5 ⎯ ⎯ ⎯ (F.5) Default display selection 0: Input signal monitor (dM) 1: CT input monitor * 2: Power frequency monitor 3: Power value monitor * Display off timer...

  • Page 92: Function Block 9

    6. PARAMETER LIST  Function block 6 User Symbol Name Data range Factory set value set value F. 6 ⎯ ⎯ ⎯ ⎯ Function block 6 * (F.6) Automatic calculation time 0 to 1000 seconds for knee points * (HT) (0: Automatic detection function of knee points unused) Automatic detection of knee...

  • Page 93: Function Block 10

    6. PARAMETER LIST  Function block 7 User Symbol Name Data range Factory set value set value F. 7 ⎯ Function block 7 * ⎯ ⎯ ⎯ (F.7) Protection function for control 0: Protection function for control of primary side of primary side of a of a transformer disabled (TF)
  • Page 94 6. PARAMETER LIST  Function block 9 User Symbol Name Data range Factory set value set value F. 9 ⎯ Function block 9 * ⎯ ⎯ ⎯ (F.9) C M P Communication protocol * 0: RKC communication Refer to Note 1 (CMP) 1: Modbus A D D...
  • Page 95 6. PARAMETER LIST  Function block 10 To change the set value of Function block 10, stop the instrument. User Symbol Name Data range Factory set value set value F. 1 0 ⎯ ⎯ ⎯ ⎯ Function block 10 (F.10) ⎯...
  • Page 96 MEMO 6-18 IMR02W05-E1...

  • Page 97: Input Function

    INPUT FUNCTION This chapter describes input related functions, setting contents and setting procedure. 7.1 Control Input (Auto Mode) ..............7-2 7.2 Manual Mode ................... 7-4 7.3 Gradient Setting Function ..............7-8 7.4 Contact Input (DI) ................7-10 IMR02W05-E1...

  • Page 98: Control Input (Auto Mode)

    7. INPUT FUNCTION 7.1 Control Input (Auto Mode) In this device, you can set the manipulated output value to the load depending on the input signal (automatic set value) from the temperature controller. When using by connecting to a temperature controller, you need to set the input signal type.

  • Page 99: Setting Procedure

    7. INPUT FUNCTION 7.1.3 Setting procedure The Engineering mode D is not displayed while Set data lock is active. To unlock Set data lock, refer to 10.7 Set Data Lock (P. 10-23).  1. Press and hold the SET key ( ) for 2 seconds at Monitor mode until Setting mode is displayed.

  • Page 100: Manual Mode

    7. INPUT FUNCTION 7.2 Manual Mode When not using the input signal (auto mode) from the temperature controller, you can set the manipulated output value of this instrument manually. 7.2.1 Description of function There are two types of Manual mode, namely, External manual mode and Internal manual mode. You can use internal manual mode and external manual mode as the main setting of the control by switching over with parameter settings or Contact input (DI).

  • Page 101: Setting Contents

    7. INPUT FUNCTION 7.2.2 Setting contents  Contact input (DI) function assignment (C1) [Engineering mode D : Function block 1 (F.1)] Use to assign the Contact input (DI) function. The action of assigned function can be switched by opening and closing the contact input. Parameter symbol Setting range Factory set value...
  • Page 102 7. INPUT FUNCTION  Manual mode transfer (AM) [Engineering mode D : Function block 2 (F.2)] Use to choose the Manual mode whether the control is performed with the External manual mode or the Internal manual mode. Parameter symbol Setting range Factory set value 0: External manual mode 1: Internal manual mode...

  • Page 103: Setting Procedure

    7. INPUT FUNCTION 7.2.3 Setting procedure The Engineering mode D is not displayed while Set data lock is active. To unlock Set data lock, refer to 10.7 Set Data Lock (P. 10-23).  1. Press and hold the SET key ( ) for 2 seconds at Monitor mode until Setting mode is displayed.

  • Page 104: Gradient Setting Function

    7. INPUT FUNCTION 7.3 Gradient Setting Function 7.3.1 Description of function This is a function to set a desired gradient toward the input signal or the set value. Gradient setting includes “External gradient setting” that is set with the external gradient setting device, and “Internal gradient setting” stored in the instrument as the internal data.

  • Page 105: Setting Contents

    7. INPUT FUNCTION 7.3.2 Setting contents  Internal gradient set value (IG) [Setting mode C ] Parameter symbol Setting range Factory set value 0.00 to 2.00 1.00 When the Control method is Zero-cross control (input synchronous type), Internal gradient set value cannot be used.

  • Page 106: Contact Input (Di)

    1: Contact closed Contact NOTE If you are using THV-1 Please note that the open/close displays of the Contact input state monitor (dI) in the THV-1 are opposite of those in the THV-10. THV-1 THV-10 Open Closed Contact input (DI) function types (1) Control method You can switch between Phase control and Zero-cross control (continuous).
  • Page 107 7. INPUT FUNCTION (2) Input signal transfer You can switch between Auto mode and Manual mode. If this function is assigned, function selected with contact open/closed will take priority. Switching of input signal via front key or communication becomes unavailable. There are two types of manual mode: External manual mode and Internal manual mode.
  • Page 108 7. INPUT FUNCTION (5) Soft-start, Soft-down enable/disable You can “Enable” or “Disable” the Soft-start/Soft-down function. This makes it possible to disable the Soft-start and Soft-down functions without setting the Soft-start time and Soft-down time to "0." There are two types of Enable actions. When contact input is open, the mode set at the “Soft-start, Soft-down enable/disable (SF)”...
  • Page 109 7. INPUT FUNCTION (8) Set data lock enable/disable You can “Enable” or “Disable” the set data lock. When the contact input is open, lock of the mode set with “Set data lock (LK)” in Setting mode C is enabled. Open: Enable (Locked) Closed: Disable (Unlocked) Contact state...

  • Page 110: Setting Contents

    7. INPUT FUNCTION 7.4.2 Setting contents  Contact input (DI) function assignment (C1) [Engineering mode D : Function block 1 (F.1)] Parameter symbol Setting range Factory set value 0: No function 1: Control method Open: Phase control Closed: Zero-cross control 2: Input signal transfer Open: Auto mode Closed: Manual mode...

  • Page 111: Setting Procedure

    7. INPUT FUNCTION 7.4.3 Setting procedure The Engineering mode D is not displayed while Set data lock is active. To unlock Set data lock, refer to 10.7 Set Data Lock (P. 10-23).  1. Press and hold the SET key ( ) for 2 seconds at Monitor mode until Setting mode is displayed.
  • Page 112 MEMO 7-16 IMR02W05-E1...

  • Page 113: Control And Output Function

    CONTROL AND OUTPUT FUNCTION This chapter describes control and output related functions, setting contents and setting procedure. 8.1 Output Limiter High and Low............8-2 8.2 Output Limiter High at Operation Start ..........8-4 8.3 Phase Control/Zero-cross Control ............ 8-7 8.4 Output Mode for Phase Control ............. 8-10 8.5 Ramp Function (Soft-Start/Soft-Down Function) ......

  • Page 114: Output Limiter High And Low

    8. CONTROL AND OUTPUT FUNCTION 8.1 Output Limiter High and Low Use an output limiter to limit the output. 8.1.1 Description of function Output limiter limits the output range of the instrument. You can limit the upper and lower limits of the output range for input signals or manual setting.

  • Page 115: Setting Contents

    8. CONTROL AND OUTPUT FUNCTION 8.1.2 Setting contents  Output limiter high (LH) [Engineering mode D : Function block 3 (F.3)] Parameter symbol Setting range Factory set value 0.0 to 100.0 % 100.0 (Output limiter high ≧ Output limiter low) ...

  • Page 116: Output Limiter High At Operation Start

    8. CONTROL AND OUTPUT FUNCTION 8.2 Output Limiter High at Operation Start 8.2.1 Description of function This is a function to limit the output phase angle for the set time period (Output limiter high time at operation start) when the instrument is powered up or when the mode is switched from STOP to RUN. Use of this function enables to suppress sudden output change due to rush current.

  • Page 117: Setting Contents

    8. CONTROL AND OUTPUT FUNCTION In case the load current of the output set by the Output limiter high at operation start exceeds the current limiter value, priority is given to the current limiter value. 8.2.2 Setting contents  Output limiter high at operation start (LS) [Engineering mode D : Function block 3 (F.3)] Parameter symbol Setting range...

  • Page 118: Setting Procedure

    8. CONTROL AND OUTPUT FUNCTION 8.2.3 Setting procedure The Engineering mode D is not displayed while Set data lock is active. To unlock Set data lock, refer to 10.7 Set Data Lock (P. 10-23)  1. Press and hold the SET key ( ) for 2 seconds at Monitor mode until Setting mode is displayed.

  • Page 119: Phase Control/Zero-Cross Control

    8. CONTROL AND OUTPUT FUNCTION 8.3 Phase Control/Zero-cross Control The instrument has three types of control methods. − Phase control − Zero-cross control (continuous) − Zero-cross control (input synchronous type) 8.3.1 Description of function Phase control θ Phase control is to continuously control electric power supplied to a load by changing phase angle of AC voltage applied to the load.

  • Page 120: Setting Contents

    8. CONTROL AND OUTPUT FUNCTION 8.3.2 Setting contents  Control method (CM) [Engineering mode D : Function block 2 (F.2)] Parameter symbol Setting range Factory set value 0: Phase control 1: Zero-cross control (continuous) 2: Zero-cross control (input synchronous type) If Control method is set in the Contact input (DI) function assignment (C1), the set value cannot be changed.

  • Page 121: Setting Procedure

    8. CONTROL AND OUTPUT FUNCTION 8.3.3 Setting procedure The Engineering mode D is not displayed while Set data lock is active. To unlock Set data lock, refer to 10.7 Set Data Lock (P. 10-23).  1. Press and hold the SET key ( ) for 2 seconds at Monitor mode until Setting mode is displayed.

  • Page 122: Output Mode For Phase Control

    8. CONTROL AND OUTPUT FUNCTION 8.4 Output Mode for Phase Control When using phase control, you can select from the following five types of output modes. (The Output mode setting is invalid when the control method is Zero-cross control) 8.4.1 Description of function (1) Proportional phase angle to input This is the output mode to control the output phase angle ratio of the output voltage applied to the load at a constant value in proportion to the input signal.
  • Page 123 8. CONTROL AND OUTPUT FUNCTION (2) Proportional voltage to input This is the output mode to control the output voltage [effective value] to be applied to the load at a constant value in proportion to the input signal. For example, the output voltage [effective value] will be as follows when the input signal is 4 to 20 mA DC.
  • Page 124 8. CONTROL AND OUTPUT FUNCTION (3) Proportional square voltage (electric power) to input This is the output mode to control the proportional square voltage to be applied to the load at a constant value in proportion to the input signal. Power can be calculated with the calculation formula: Power P (W) = Voltage E (V) / Resistance R (Ω).
  • Page 125 Example where proportional square voltage (electric power) to input is  proportional to input signal When the load voltage is 200 V and the load resistance (load with small changes in resistance value) is 10 Ω THV-10 Load voltage 200 V AC Load Load resistance 10 Ω...
  • Page 126 8. CONTROL AND OUTPUT FUNCTION (4) Constant current control This is the output mode to control the output current at a constant value in proportion to the input signal. This is effective for controlling loads (such as tantalum, super kanthal, tungsten, platinum, molybdenum, etc.) whose resistance varies greatly with temperature changes.
  • Page 127 Example: When used in the following condition  Rated current of THV-10: 30 A  Maximum load current of heater: 15 A  Input signal from controller: 4 to 20 mA DC When used without changing the gradient, the maximum heater load current becomes 15 A at an input signal of 12 mA.
  • Page 128 Calculation formula: Target power (W) = Input signal (%) × 200 V × THV-10 rated current (A) × 0.5 × Internal gradient set value × External gradient set value (%) “200 V” and “0.5” in the calculation formula are fixed values.

  • Page 129: Setting Contents

     Set to “0.75” when compensating with the internal gradient set value. Target power (W) = Input signal (%) × 200 V × THV-10 rated current (A) × 0.5 × Internal gradient set value × External gradient set value (%) = 100 % ×...

  • Page 130: Setting Procedure

    8. CONTROL AND OUTPUT FUNCTION 8.4.3 Setting procedure The Engineering mode D is not displayed while Set data lock is active. To unlock Set data lock, refer to 10.7 Set Data Lock (P. 10-23).  1. Press and hold the SET key ( ) for 2 seconds at Monitor mode until Setting mode is displayed.

  • Page 131: Ramp Function (Soft-Start/Soft-Down Function)

    8. CONTROL AND OUTPUT FUNCTION 8.5 Ramp Function (Soft-Start/Soft-Down Function) 8.5.1 Description of function Soft-start/Soft-down function gradually ramps up/down the output (phase angle) to the demand level over the set time to prevent a sudden change in load or voltage. The Soft-start/Soft-down time sets a period of time from 0 % to 100 % or 100 % to 0 %.

  • Page 132: Setting Contents

    8. CONTROL AND OUTPUT FUNCTION 8.5.2 Setting contents  Soft-start time (SU) [Setting mode C ] Set the time for the output (phase angle) to go from 0% to 100% within the range 0.0 to 199.9 seconds. Parameter symbol Setting range Factory set value 0.0 to 199.9 seconds (0.0: Soft-start function unused)
  • Page 133 8. CONTROL AND OUTPUT FUNCTION  Soft-down time (Sd) [Setting mode C ] Set the time for the output (phase angle) to go from 100 % to 0 % within the range 0.0 to 199.9 seconds. Parameter symbol Setting range Factory set value 0.0 to 199.9 seconds (0.0: Soft-down function unused)
  • Page 134 8. CONTROL AND OUTPUT FUNCTION  Explanation of Soft-start, Soft-down enable/disable (SF) set value The actions of Soft-start, Soft-down, and the Output limiter high at operation start occur as follows, depending on the set value. When Protection function for control of primary side of a transformer is not supplied or when it is disabled.

  • Page 135: Setting Procedure

    8. CONTROL AND OUTPUT FUNCTION 8.5.3 Setting procedure Set value of Setting mode C cannot be adjusted when the set data lock is active. To unlock Set data lock, refer to 10.7 Set Data Lock (P. 10-23). Setting operation of Soft-start and Soft-down time Setting mode Monitor mode Internal manual set value...
  • Page 136 8. CONTROL AND OUTPUT FUNCTION Setting operation of Soft-start, Soft-down enable/disable (SF) The Engineering mode D is not displayed when Set data lock is active. To unlock Set data lock, refer to 10.7 Set Data Lock (P. 10-23).  1. Press and hold the SET key ( ) for 2 seconds at Monitor mode until Setting mode is displayed.

  • Page 137: Minimum Output Phase Angle Adjustment Function

    8. CONTROL AND OUTPUT FUNCTION 8.6 Minimum Output Phase Angle Adjustment Function Minimum output phase angle adjustment function is used in the following cases. This function need not be set when the instrument is working normally. Use the instrument at the factory set value. −...

  • Page 138: Setting Procedure

    8. CONTROL AND OUTPUT FUNCTION 8.6.3 Setting procedure The Engineering mode D is not displayed while Set data lock is active. To unlock Set data lock, refer to 10.7 Set Data Lock (P. 10-23)  1. Press and hold the SET key ( ) for 2 seconds at Monitor mode until Setting mode is displayed.

  • Page 139: Retransmission Output (Ao)

    You can output the measured effective current value with retransmission signal. Range of the effective current value is from 0 up to the rated current of the instrument. Example: When doing retransmission output (AO) of CT input monitor value by using THV-10 of rated current 20 A...

  • Page 140: Setting Contents

    0 to 100 %. Example: When the rated current of THV-10 is 20 A and the maximum load current of the heater is 16 A, and when setting the retransmission signal to 10 V while 16 A of current is flowing through the heater Setting the Retransmission output scale high to 80 %.

  • Page 141: Setting Procedure

    8. CONTROL AND OUTPUT FUNCTIONS 8.7.3 Setting procedure The Engineering mode D is not displayed when Set data lock is active. To unlock Set data lock, refer to 10.7 Set Data Lock (P. 10-23).  1. Press and hold the SET key ( ) for 2 seconds at Monitor mode until Setting mode is displayed.

  • Page 142: Current Limit Function

    8. CONTROL AND OUTPUT FUNCTIONS 8.8 Current Limit Function 8.8.1 Description of function This is the function of limiting an output current to a value not exceeding the preset current limit value. A current value is measured for each constant cycle and then the maximum phase angle not exceeding the current limit value is calculated from the above current value thus measured.

  • Page 143: Setting Contents

    8. CONTROL AND OUTPUT FUNCTIONS 8.8.2 Setting contents  Current limit value setting (CL) [Setting mode C ] NOTE If a load through which large rush current flows is used, the Current limit function cannot restrict the above current. In this case, use the Current limit function together with the Soft-start function.

  • Page 144: Base-Up Setting Function

    8. CONTROL AND OUTPUT FUNCTIONS 8.9 Base-Up Setting Function Even when the temperature controller is stopped, if you want to have the heater preheated, you can use the base-up setting function. When it takes time to increase the temperature of the load, you can shorten it by having the heater preheated.

  • Page 145: Setting Procedure

    8. CONTROL AND OUTPUT FUNCTIONS 8.9.3 Setting procedure The Engineering mode is not displayed when Set data lock is active. To unlock Set data lock, refer to 10.7 Set Data Lock (P. 10-23).  1. Press and hold the SET key ( ) for 2 seconds at Monitor mode until Setting mode is displayed.

  • Page 146: Protection Function For Control Of Primary Side Of A Transformer

    8. CONTROL AND OUTPUT FUNCTIONS 8.10 Protection Function for Control of Primary Side of a Transformer 8.10.1 Description of function If momentary power failure occurs during execution of the control of primary side of a transformer, inrush current is generated. Protection function for control of primary side of a transformer is to protect the thyristor from the inrush current.
  • Page 147 8. CONTROL AND OUTPUT FUNCTIONS  Determination of break and release of secondary side of transformer • Determination of break While control of primary side of a transformer is executed, if the current transformer (CT) value goes below the determination set value in case of a break on the secondary side of the transformer, it is judged to be a break (momentary power failure).

  • Page 148: Setting Contents

    8. CONTROL AND OUTPUT FUNCTIONS 8.10.2 Setting contents  Protection function for control of primary side of a transformer (TF) [Engineering mode D : Function block 7 (F.7)] Use to enable/disable Protection function for control of primary side of a transformer. When conducting control of primary side of a transformer, make sure to set to “1: Protection function for control of primary side of a transformer enable”.
  • Page 149 8. CONTROL AND OUTPUT FUNCTIONS  Soft-start time in case of break on the secondary side of the transformer (TU) [Engineering mode D : Function block 7 (F.7)] Use to set the Soft-start time when the instrument is recovered from a break (momentary power failure) on the secondary side of a transformer.

  • Page 150: Setting Procedure

    8. CONTROL AND OUTPUT FUNCTIONS 8.10.3 Setting procedure The following parameters need to be adjusted to suit your system. (If the factory set values satisfy the requirements, they can be used as they are) After having the following parameters properly adjusted, enable the protection function for control of primary side of a transformer.
  • Page 151 8. CONTROL AND OUTPUT FUNCTIONS Continued from the previous page. Soft-start time in case of a Soft-start time in case of a break on the secondary break on the secondary side of the transformer side of the transformer (Parameter screen) (Setting screen) 1.

  • Page 152: Run/Stop Transfer

    In the STOP state, the output of the instrument turns off.  State of each function in RUN/STOP State Contents In STOP In RUN THV-10 output Output OFF Output ON Heater break alarm Function is disabled. Function is enabled. Non-linear resistance heater break alarm Function is disabled.

  • Page 153: Setting Procedure

    8. CONTROL AND OUTPUT FUNCTIONS 8.11.3 Setting procedure The Engineering mode D is not displayed when Set data lock is active. To unlock Set data lock, refer to 10.7 Set Data Lock (P. 10-23).  1. Press and hold the SET key ( ) for 2 seconds at Monitor mode until Setting mode is displayed.

  • Page 154: Scr Trigger Signal Setting

    This is a function to properly output by switching the trigger signal through the setting without re-wiring when combination is incorrectly made. Trigger signal can be switched using the parameter of SCR trigger signal setting (SC). THV-10 THV-10 Power supply terminals...

  • Page 155: Setting Contents

    8. CONTROL AND OUTPUT FUNCTIONS 8.12.2 Setting contents  SCR trigger signal setting (SC) Function block 3 (F.3)] Engineering mode Parameter symbol Setting range Factory set value Phase between the supply voltage for the instrument and the supply voltage for the load 0: Same phase 1: Opposite phase 8.12.3 Setting procedure...
  • Page 156 MEMO 8-44 IMR02W05-E1...

  • Page 157: Alarm And Self-Diagnosis

    ALARM AND SELF-DIAGNOSIS This chapter describes alarm and self-diagnosis related functions, setting contents, and setting procedures. 9.1 Heater Break Alarm/Thyristor Break-down Alarm ......9-2 9.2 Non-linear Resistance Heater Break Alarm ........9-30 9.3 Power Frequency Monitoring Function .......... 9-50 9.4 Over Current Alarm Function ............9-51 9.5 Alarm Output ..................

  • Page 158: Heater Break Alarm/Thyristor Break-Down Alarm

    (linearity resistor type, absolute value alarm) (P. 9-8) Action during the occurrence of an alarm: ALM lamp lights THV-10 continues the control. Error number corresponding to the alarm status will be displayed on the Alarm monitor (AL). Alarm monitor (AL) 1. 8. 1. 1.

  • Page 159: Type 1 For Phase Control (Constant Resistance Type, Deviation Alarm)

    9. ALARM AND SELF-DIAGNOSIS 9.1.2 Type 1 for phase control (constant resistance type, deviation alarm) Type 1 heater break alarm/Thyristor break-down alarm are available for Phase control. The Heater break alarm/Thyristor break-down alarm of Type 1 instrument performs the following calculation to determine the alarm state.
  • Page 160 9. ALARM AND SELF-DIAGNOSIS  Heater that can be used with type 1 for phase control The heater break alarm of Type 1 can be used for general heating elements making small resistance changes (approx. 10 %) with temperature variations. (General heating elements: Nichrome, ferrochromium, graphite, kanthal A, etc.) •...
  • Page 161 9. ALARM AND SELF-DIAGNOSIS  Operation example of type 1 for phase control When the parameters are set to the values below, operation takes place as shown in the graph. (This setting example is for a 20 A type. All parameters except “Alarm output logic (L1)” are default settings.) Mode Parameter Set value...

  • Page 162: Type 2 For Phase Control (Linearity Resistor Type, Absolute Value Alarm)

    9. ALARM AND SELF-DIAGNOSIS 9.1.3 Type 2 for phase control (linearity resistor type, absolute value alarm) Type 2 heater break alarm/Thyristor break-down alarm are available for Phase control and Zero-cross control. Heater break alarm/Thyristor break-down alarm of Type 2 is used to detect a break of a single heater. For the Type 2, alarm set value is calculated based on the maximum load current value.
  • Page 163 9. ALARM AND SELF-DIAGNOSIS  Determination of Thyristor break-down alarm and alarm release When the phase angle equals or exceeds the Minimum output phase angle, determination of Thyristor break-down alarm is not done. • Determination of Thyristor break-down While the phase angle is less than Minimum output phase angle, if the current transformer input value stays within the Thyristor break-down ON area consecutively for “Number of alarm determination ×...

  • Page 164: Type 2 For Zero-Cross Control (Linearity Resistor Type, Absolute Value Alarm)

    9. ALARM AND SELF-DIAGNOSIS 9.1.4 Type 2 for Zero-cross control (linearity resistor type, absolute value alarm) The alarm state is judged based on whether the current transformer input value is below the Heater break alarm set value or above the Thyristor break-down set value. ...
  • Page 165 9. ALARM AND SELF-DIAGNOSIS  Operation example of Type 2 for Zero-cross control Setting example of heater break alarm When the parameters are set to the values below, operation takes place as shown in the graph. Mode Parameter Set value Setting mode Maximum load current value (MC) 20.0 A...
  • Page 166 9. ALARM AND SELF-DIAGNOSIS When two Heater break alarms are used When the parameters are set to the values below, operation takes place as shown in the graph. Mode Parameter Set value Setting mode Maximum load current value for alarm (MC) 20.0 A Heater break alarm 1 setting (H1) 80 %...

  • Page 167: Alarm Differential Gap

    9. ALARM AND SELF-DIAGNOSIS 9.1.5 Alarm differential gap If the measured value from the current transformer is around the alarm set value, due to the fluctuation of the input, Heater break alarm or Thyristor break-down alarm may be generated repeatedly. To avoid such frequent alarm state, an alarm differential gap where alarm state is not checked is supplied on the OFF side against the alarm set value.

  • Page 168: Setting Contents

    9. ALARM AND SELF-DIAGNOSIS 9.1.7 Setting contents  Maximum load current value (MC) [Setting mode C ] Use to set the maximum heater current value (maximum load current value) for Heater break alarm. The maximum load current value means the current value which flows through the heater when the output of the instrument is 100 % (phase angle: 180°).

  • Page 169: Non-Linear Resistance Heater Break Alarm

    9. ALARM AND SELF-DIAGNOSIS  Heater break alarm 1 setting (H1) [Setting mode C ] Use to set the Heater break alarm 1 set value. Parameter symbol Setting range Factory set value In the case of Type 1 (constant resistance type, deviation alarm) and Non-linear resistance heater break alarm (Non-linear resistance type, deviation alarm): 0 to 100 % of the reference current *...
  • Page 170 9. ALARM AND SELF-DIAGNOSIS  Thyristor break-down detection 1 setting (Tb) [Setting mode C ] Use to set the Thyristor break-down 1 set value. Parameter symbol Setting range Factory set value In the case of Type 1 (constant resistance type, deviation alarm) and Non-linear resistance heater break alarm (Non-linear resistance type, deviation alarm): 0 to 100 % of the reference current*...
  • Page 171 9. ALARM AND SELF-DIAGNOSIS  Heater break alarm 2 setting (H2) [Setting mode C ] Use to set the Heater break alarm 2 set value. Parameter symbol Setting range Factory set value n the case of Type 1 (constant resistance type, deviation alarm) and Non-linear resistance heater break alarm (Non-linear resistance type, deviation alarm): 0 to 100 % of the reference current*...
  • Page 172 9. ALARM AND SELF-DIAGNOSIS  Thyristor break-down detection 2 setting (TC) [Setting mode C ] Use to set the Thyristor break-down 2 set value. Parameter symbol Setting range Factory set value In the case of Type 1 (constant resistance type, deviation alarm) and Non-linear resistance heater break alarm (Non-linear resistance type, deviation alarm): 0 to 100 % of the reference current *...
  • Page 173 9. ALARM AND SELF-DIAGNOSIS  Heater break alarm enable/disable (HF) [Engineering mode D : Function block 2 (F.2)] This setting is used to enable or disable the Heater break alarm and Thyristor break-down alarm. Disabling this function will not turn on Heater break alarm or the Thyristor break-down alarm. The Heater break alarm and Thyristor break-down alarm can be disabled without changing the Heater break alarm set value or the Thyristor break-down set value.
  • Page 174 9. ALARM AND SELF-DIAGNOSIS  Alarm type selection (A1) [Engineering mode D : Function block 4 (F.4)] Use to select the type of Heater break alarm in the Phase control. Parameter symbol Setting range Factory set value 0: Type 1 (constant resistance type, deviation alarm) 1: Type 2 (linearity resistor type, absolute value alarm) 2: Non-linear resistance heater break alarm (Non-linear resistance type, deviation alarm)
  • Page 175 9. ALARM AND SELF-DIAGNOSIS 9.1.8 Setting example of Heater break alarm/Thyristor break-down alarm The procedure for setting the Heater break alarm is the same as that for any of Phase control and Zero-cross control. Set while referring to the setting example given on the next page. The setting procedure is as follows.
  • Page 176 9. ALARM AND SELF-DIAGNOSIS  Setting example The procedure for setting the following conditions is explained as an example. <Operating condition> THV-10: 20 A type Control method: Phase control Output adjustment: Auto mode Power supply voltage: 200 V AC Heater capacity:...
  • Page 177 9. ALARM AND SELF-DIAGNOSIS (1) How to Find Maximum Load Current Value   There are three methods to obtain the maximum load current value. In this section, the following methods are explained.  Method of finding the maximum load current value from the output of the instrument ...
  • Page 178 9. ALARM AND SELF-DIAGNOSIS Example of finding the maximum load current value by setting the output of the instrument to 100.0% This is how to check the maximum load current value when used together with the controller. After having set necessary parameters and the gradient, check the maximum load current value with the output from the controller set at 100.0 %.
  • Page 179 9. ALARM AND SELF-DIAGNOSIS 2. Set the external gradient to 100.0 %. Align the arrow on the knob with “100” on the scale plate. External gradient setter Go to 4. if the external gradient setter is not there 3. Check whether or not the external gradient is set to 100.0%. Monitor mode Monitor mode Input signal monitor...
  • Page 180 9. ALARM AND SELF-DIAGNOSIS 5. Check that the controller output is set at 100.0 %. Select the Phase angle ratio monitor (PA) and check that the phase angle ratio is 100.0 %. If the phase angle ratio is 100.0 %, the output from this instrument is also 100.0 %. Monitor mode Monitor Mode Input signal monitor...
  • Page 181 9. ALARM AND SELF-DIAGNOSIS ② Calculate the heater’s rated current (When it is not possible to flow the maximum current through each heater) This is a method of finding the maximum load current value when each heater may be damaged if letting the maximum current flow through the heater.
  • Page 182 9. ALARM AND SELF-DIAGNOSIS (2) Setting procedure 1. Unlock the setting data Unlock the Engineering mode Refer to 10.7 Set Data Lock (P. 10-23). 2. Set the Engineering mode  1. Press and hold the SET key ( ) for 2 seconds at Monitor mode until Setting mode is displayed.
  • Page 183 9. ALARM AND SELF-DIAGNOSIS Continued from the previous page. Alarm type selection Number of alarm 1 determination Number of alarm 1 determination (Setting screen) (Parameter screen) (Setting screen) . 0. 1. 8 . n. φ φ φ Set to “30.” Register the revised value.
  • Page 184 9. ALARM AND SELF-DIAGNOSIS 3. Set each alarm set value Before setting the set values of the alarms, check the maximum load current value. If the maximum load current value is not set, heater break judgment cannot be made, and thus it is important to verify that this has been set.
  • Page 185 9. ALARM AND SELF-DIAGNOSIS Continued from the previous page. Heater break alarm 2 setting Heater break alarm 2 setting Thyristor break-down detection 2 (Setting screen) (Setting screen) setting (Parameter screen) 1. 8 . . 1. φ φ φ Set to “15 %.” Register the revised value.

  • Page 186: Description Of Function

    9. ALARM AND SELF-DIAGNOSIS 9.2 Non-linear Resistance Heater Break Alarm It may not be possible to use the Non-linear resistance heater break alarm function with some heater types. 9.2.1 Description of function Non-linear resistance heater break alarm supports phase control. The Non-linear resistance heater break alarm is used to detect breaks in loads with large changes in resistance due to temperature (lamp heaters, etc.).
  • Page 187 9. ALARM AND SELF-DIAGNOSIS Determination of Heater break alarm and alarm reset  To avoiding malfunction of the alarm, the Heater break alarm will not function if the phase angle is less than 15 % (less than15 % of the maximum load current value). Determination of heater break While the phase angle is 15 % or more, if the current input value from the current transformer stays within the Heater break alarm ON area continuously for “Number of alarm determination ×...

  • Page 188: Setting Contents

    9. ALARM AND SELF-DIAGNOSIS 9.2.2 Setting contents  Automatic calculation time for knee points (HT) [Engineering mode D : Function block 6 (F.6)] Set the time until the heater stabilizes as the output time. This instrument takes in current values of each phase angle ratio by changing the phase angle ratio in the order K1, K2, K3 and 100 % before knee point is detected.
  • Page 189 9. ALARM AND SELF-DIAGNOSIS  Automatic detection of knee points (HU) [Engineering mode D : Function block 6 (F.6)] Conduct automatic detection of knee points. Set to “1: ON” will start automatic detection of knee points. When Automatic detection starts, the ARC lamp lights up. After the automatic detection is completed, the set value returns to “0: OFF”...
  • Page 190 9. ALARM AND SELF-DIAGNOSIS  Phase angle ratio at knee point 1 (K1) [Engineering mode D : Function block 6 (F.6)] The horizontal axis position of knee point 1 is set by the Phase angle ratio (%). Phase angle ratio at knee point 1 (K1) can be automatically calculated by the Automatic detection function of knee points.
  • Page 191 9. ALARM AND SELF-DIAGNOSIS  Phase angle ratio at knee point 2 (K2) [Engineering mode D : Function block 6 (F.6)] The horizontal axis position of knee point 2 is set by the Phase angle ratio (%). Phase angle ratio at knee point 2 (K2) can be automatically calculated by the Automatic detection function of knee points.
  • Page 192 9. ALARM AND SELF-DIAGNOSIS  Phase angle ratio at knee point 3 (K3) [Engineering mode D : Function block 6 (F.6)] The horizontal axis position of knee point 3 is set by the Phase angle ratio (%). Phase angle ratio at knee point 3 (K3) can be automatically calculated by the Automatic detection function of knee points.

  • Page 193: Setting Example Of Non-Linear Resistance Heater Break Alarm

    9. ALARM AND SELF-DIAGNOSIS 9.2.3 Setting example of Non-linear resistance heater break alarm Precautions for using Non-linear resistance heater break alarm   It may not be possible to use the Non-linear resistance heater break alarm function with some heater types.
  • Page 194 9. ALARM AND SELF-DIAGNOSIS Current limit In case Current limiter value is set at any point below the knee point 3. Current (A) Explanation of the left figure When the Current limit value is set at any point below the Maximum load Knee point 2 and Knee point 3 knee point 3, the line between the Current limit value and...
  • Page 195 9. ALARM AND SELF-DIAGNOSIS  The following input signals are disregarded during automatic calculation of the Knee point. − Automatic set value (Input signal from controller) − External manual set value (Input signal from external manual setter) − Internal manual set value (Set by the front keys) ...
  • Page 196 9. ALARM AND SELF-DIAGNOSIS Setting procedure  Non-linear resistance heater break alarm can be set in two ways: One is the Automatic detection of the phase angle ratio and the Current value of the knee point. The other is Manual setting. If Heater break and Thyristor break-down cannot be properly detected with the Phase angle ratio and the Current value of the knee points automatically detected, set the knee points manually.
  • Page 197 9. ALARM AND SELF-DIAGNOSIS Setting method when automatically detecting the knee points  Preparation prior to the Automatic detection of the knee points Set the following parameters before calculating the knee point. Mode Symbol Name Description Setting mode C (SU) Soft-start time Set the actual values that are used.
  • Page 198 9. ALARM AND SELF-DIAGNOSIS Continued from the previous page. Mode Symbol Name Description Engineering mode (A1) Alarm type selection Set to “2: Non-linear resistance heater break alarm (Non-linear resistance type, deviation alarm).” (This item may be set after completion of the Automatic detection of the knee points.) Engineering mode (HT)
  • Page 199 9. ALARM AND SELF-DIAGNOSIS Starting Automatic detection of knee points Execute the “Automatic detection of knee points (HU)” at F.6 in the Engineering mode automatically detect the knee points. The Engineering mode is not displayed while Data lock is active. To unlock setting, refer to 10.7 Set Data Lock (P.
  • Page 200 9. ALARM AND SELF-DIAGNOSIS Set to manually check the knee points  To manually check the Phase angle ratio and Current value of knee points, enter control signal via either Auto mode or Manual mode, to output the desired value. In this example, Internal manual mode is used for explanation.
  • Page 201 9. ALARM AND SELF-DIAGNOSIS Set knee points manually For selecting mode, refer to 5.1 Switching the Mode (P. 5-2). For switching between monitor screen and parameters, refer to 5.4 List of Parameter Operation (P. 5-10). For setting numeric values, refer to 5.3 Changing and Registering the Set Value (P. 5-8). 1.
  • Page 202 9. ALARM AND SELF-DIAGNOSIS 3. Set the written down Phase angle ratio and current value. Set the “Phase angle ratio of knee point” and the “Current value of knee point” from the knee point with the smallest phase angle. Engineering mode D F.6 Phase angle ratio at Current value at...

  • Page 203: Conversion Table For Output Limiter High Value At The Time Of Automatic Detection Of Knee Points

    9. ALARM AND SELF-DIAGNOSIS 9.2.4 Conversion table for output limiter high value at the time of automatic detection of knee points The function of automatic detection of knee points is used to perform automatic detection according to the Proportional phase angle to input. After the knee points have been successfully calculated, if the customer wants to use them in the Proportional voltage to input or the Proportional square voltage (electric power) to input, convert the Output limiter high value set during automatic detection to the Output limiter high value for the Proportional phase angle mode, and set this value.
  • Page 204 9. ALARM AND SELF-DIAGNOSIS Continued from the previous page. Conversion table Output mode Proportional square voltage (electric Proportional voltage to input Proportional phase angle to input power) to input 22.05 % 4.86 % 20.00 % 23.63 % 5.58 % 21.00 % 25.23 % 6.37 % 22.00 %...
  • Page 205 9. ALARM AND SELF-DIAGNOSIS Continued from the previous page. Conversion table Output mode Proportional square voltage Proportional voltage to input Proportional phase angle to input (electric power) to input 90.77 % 82.40 % 68.00 % 91.54 % 83.80 % 69.00 % 92.27 % 85.14 % 70.00 %...

  • Page 206: Power Frequency Monitoring Function

    40.0 to 54.9 Hz, 65.0 to 70.0 Hz (60 Hz) Actions on failure of detection: ALM lamp flashes THV-10 output OFF “16 (Power frequency error)” is displayed on the Alarm monitor (AL) (The output can be turned ON when the error is canceled.) Alarm monitor (AL) 1.

  • Page 207: Over Current Alarm Function

    60 A type: 72 A 80 A type: 96 A 100 A type: 120 A Actions on failure of detection: ALM lamp flashes THV-10 output OFF “32 (Over current alarm)” is displayed on the alarm monitor (AL) Alarm monitor (AL) 1. 8. 3. 2.

  • Page 208: Setting Contents

    9. ALARM AND SELF-DIAGNOSIS  About enable/disable of actions related to Over current alarm Depending on the “Alarm enable/disable during STOP (SA)” and the RUN/STOP state, the actions related to Over current alarm are as described below. Over current alarm Alarm Actions related to Over current alarm RUN/STOP...

  • Page 209: Setting Procedure

    9. ALARM AND SELF-DIAGNOSIS 9.4.3 Setting procedure The Engineering mode is not displayed while Data lock is active. To unlock setting, refer to 10.7 Set Data Lock (P. 10-23).  1. Press and hold the SET key ( ) for 2 seconds at Monitor mode until Setting mode is displayed.

  • Page 210: Alarm Output

    9. ALARM AND SELF-DIAGNOSIS 9.5 Alarm Output 9.5.1 Description of function This is a function that outputs an alarm signal from transistor output when the alarm occurrence conditions are satisfied. The type of the alarm to output can be selected from Alarm output logic (L1). Also, if necessary, energized/de-energized of alarm output, and whether to enable or disable alarm output when the instrument is in the STOP state can be selected.
  • Page 211 9. ALARM AND SELF-DIAGNOSIS Regardless of whether the Alarm monitor (AL) and ALM lamp are set to Alarm output logic (L1) or Selection of alarm output energized/de-energized (nA), the operation described below is performed when an alarm occurs. Alarm type Error No.
  • Page 212 9. ALARM AND SELF-DIAGNOSIS Alarm actions when this function is enabled/disabled  Use to set enable/disable of alarm at STOP as well as alarm state of Heater break alarm and Over current alarm after switching between RUN/STOP. Heater break alarm * Alarm enable/disable during RUN/STOP state Alarm determination in RUN/STOP...

  • Page 213: Setting Procedure

    9. ALARM AND SELF-DIAGNOSIS 9.5.3 Setting procedure The Engineering mode is not displayed while Data lock is active. To unlock setting, refer to 10.7 Set Data Lock (P. 10-23).  1. Press and hold the SET key ( ) for 2 seconds at Monitor mode until Setting mode is displayed.
  • Page 214 MEMO 9-58 IMR02W05-E1...

  • Page 215: Displays And Settings

    DISPLAYS AND SETTINGS This chapter describes the display items of each monitor, the setting contents of display related functions, and the setting procedure. 10.1 Monitors ..................10-2 10.2 Default Display Selection ............10-10 10.3 Display OFF Timer ..............10-11 10.4 Parameter Select Function ............10-12 10.5 Integrated Operating Time ............

  • Page 216: Monitors

    10. DISPLAYS AND SETTINGS 10.1 Monitors This section describes the screen of Monitor mode A . For switching to Monitor mode A , refer to Chapter 5 “Mode Switching and Parameter Switching.” 10.1.1 Description of function Input signal monitor (M1) ...
  • Page 217 0.0 % External manual set value 100.0 % • Internal manual set value (Set value set by THV-10 front keys.) A value set by the Internal manual set value (IM) is displayed. Phase angle ratio monitor (PA)  Displays the phase angle of the trigger point by percentage. Phase angle is obtained by performing computations such as Soft-start/Soft-down time, Gradient setting, Output limiter setting or Base up setting to the input signal.
  • Page 218 10. DISPLAYS AND SETTINGS CT input monitor (CT)  Displays the captured value of current transformer. The displayed current value is the RMS value. Display range varies depending on the instrument specification. CT input monitor (CT) 1. 8 . 0 . 0 φ...
  • Page 219 10. DISPLAYS AND SETTINGS Power frequency monitor (IF)  Displays the power frequency. Power frequency monitor (IF) 1. 8 . φ Display range 40 to 70 Hz Parameter screen 1. 8 . φ There is a power frequency monitoring function to this instrument. For details, refer to 9.3 Power Frequency Monitoring Function (P.
  • Page 220 10. DISPLAYS AND SETTINGS External gradient set value monitor (EG)  Displays the external gradient set value (set value of external gradient setter). External gradient set value monitor 1. 8 . 0 . 0 φ The external gradient set value is displayed. External gradient setter External gradient...
  • Page 221 10. DISPLAYS AND SETTINGS External manual set value monitor (EM)  Displays the external manual set value (set value of external manual setter). External manual set value monitor 1. 8 . 0. 0 φ The external manual set value is displayed. External manual setter External manual...
  • Page 222 0: Contact open 1: Contact closed NOTE For users of the THV-1 Please note that the open/close displays of the Contact input state monitor in the THV-1 are opposite of those in the THV-10. THV-1 THV-10 Contact open Contact closed...
  • Page 223 10. DISPLAYS AND SETTINGS Alarm monitor (AL)  In alarm state, error number showing alarm type is displayed. If two or more alarms happen at the same time, the sum of the error numbers are displayed. Display example 1: In case of Over current Alarm monitor 1.

  • Page 224: Default Display Selection

    10. DISPLAYS AND SETTINGS 10.2 Default Display Selection 10.2.1 Description of function With this function you can set the monitor screen that appears when the instrument is initially powered on or the monitor screen that automatically appears when the instrument is left idle for one minute. For example, if you select “3: Power value monitor,”...

  • Page 225: Display Off Timer

    10. DISPLAYS AND SETTINGS 10.3 Display OFF Timer 10.3.1 Description of function This is a function to turn off the display unit (7 segment LED) if any key is not operated for a certain length of time. To turn on the display again, touch any key on the front panel. The time till the display goes off can be set with the Display off timer (dT) in Engineering mode (Function block 5).

  • Page 226: Parameter Select Function

    10. DISPLAYS AND SETTINGS 10.4 Parameter Select Function This instrument has a function that allows a user to specify desired screens to be displayed by grouping them into a single mode. This function is called "Parameter select function." Up to 22 screens can be grouped together.
  • Page 227 Parameter select mode B . For details on the communication data of Parameter select setting 1 to 22, refer to the THV-10 Host Communication Instruction Manual (IMR02W06-J). Parameter screens that have already been registered in Parameter select mode B cannot be registered.
  • Page 228 10. DISPLAYS AND SETTINGS  Example 1 of relationship between screen registration and display There are 22 Parameter select setting screens and these are freely settable. Unregistered screens, if any, will be displayed in series on the screen of the Parameter select mode Engineering mode D : Parameter select setting screen (for registration) : Registered screens...
  • Page 229 10. DISPLAYS AND SETTINGS Direct registration    Display the screen to register and press the keys simultaneously. The screen will be registered on the Parameter select setting screen. [To register screens] Set the STOP state from RUN/STOP transfer (rS) of Engineering Set the instrument to the mode D .
  • Page 230 10. DISPLAYS AND SETTINGS  Example 2 of relationship between screen registration and display This example shows the case of direct registration under the state of the “Example 1 of relationship between screen registration and display” (P. 10-14). When directly registered ...
  • Page 231 10. DISPLAYS AND SETTINGS  Example of Direct registration Example 1: Register the internal manual set value of Setting mode It is possible to register a screen in Parameter select mode even if Setting mode been locked by the Set data lock function. Screen registration is accepted even if Parameter select mode B has been locked by the Set data lock function.

  • Page 232: Setting Contents

    10. DISPLAYS AND SETTINGS  About the relationship between the set data lock and the screen registration operation When the set data lock has been set, the screen registration or deletion operations are restricted. Refer to the table below for the relationship between the set data lock and the screen registration operation. : Operation can be performed ×: Operation cannot be performed Setting mode...

  • Page 233: Integrated Operating Time

    10. DISPLAYS AND SETTINGS 10.5 Integrated Operating Time 10.5.1 Description of function You can check the operating time of this instrument. By using the two screens of the Integrated operating time [upper 3 digits] and Integrated operating time [lower 3 digits], up to 999,999 hours from 0 can be displayed.

  • Page 234: Checking Procedure

    10. DISPLAYS AND SETTINGS 10.5.3 Checking procedure The Engineering mode is not displayed while Data lock is active. To unlock setting, refer to 10.7 Set Data Lock (P. 10-23).  1. Press and hold the SET key ( ) for 2 seconds at Monitor mode until Setting mode is displayed.

  • Page 235: Rom Version

    In the event of occurrence of a problem, please check the type name and specifications of the product, and also the ROM version on the instrument display when contacting RKC INSTRUMENT INC. or the agent. The ROM version is displayed by using the two screens of ROM Version (High-order) and ROM Version (Low-order).

  • Page 236: Checking Procedure

    10. DISPLAYS AND SETTINGS 10.6.3 Checking procedure The Engineering mode is not displayed while Data lock is active. To unlock setting, refer to 10.7 Set Data Lock (P. 10-23).  1. Press and hold the SET key ( ) for 2 seconds at Monitor mode until Setting mode is displayed.

  • Page 237: Set Data Lock

    10. DISPLAYS AND SETTINGS 10.7 Set Data Lock By using the Set data lock function, errors during operation can be prevented. 10.7.1 Description of function This function is used to restrict mode changes and parameter setting changes by key operation. Settings are configured using the front keys, communication, or Contact inputs (DI).
  • Page 238 When the set data is locked by communication The set data can be locked by the communication data "Set data lock (identifier: LK)". For details on the Contents of communication data, refer to the THV-10 Host Communication Instruction Manual (IMR02W06-E).
  • Page 239 10. DISPLAYS AND SETTINGS When the data is locked by Contact input (DI)  Before locking the setting data, set the following parameters, that is, "Set data lock (LK)" and "Contact input (DI) function assignment". Set data lock and unlock becomes available by switching the contacts open and close.

  • Page 240: Setting Contents

    10. DISPLAYS AND SETTINGS 10.7.2 Setting contents  Set data lock (LK) [Setting mode C ] Set data lock (Setting screen) 1. 1. 0. 1. φ Factory set value: 101 Setting range Setting mode C Engineering mode D Parameter select mode B Set value 0 and 2 to 9: Lock (cannot be set) Unlock (can be set)
  • Page 241 10. DISPLAYS AND SETTINGS Operation of Contact input (DI) function assignment (CI) The Engineering mode is not displayed while Data lock is active. To unlock setting, refer to 10.7 Set Data Lock (P. 10-23).  1. Press and hold the SET key ( ) for 2 seconds at Monitor mode until Setting mode is displayed.
  • Page 242 MEMO 10-28 IMR02W05-E1...

  • Page 243: Troubleshooting

    TROUBLE SHOOTING This chapter describes Error displays and countermeasures for errors. 11.1 Daily Inspection ................11-2 11.2 Error Displays ................11-3 11.3 Troubleshooting ................11-4 11.4 Replacement of UL Certified Fuse ..........11-8 11.5 Removal of Terminal Cover (For Main Circuit Terminals) .... 11-9 11-1 IMR02W05-E1...

  • Page 244: Daily Inspection

    11. TROUBLESHOOTING WARNING  In order to prevent electric shock or instrument failure, always conduct necessary work after power supplied to the entire system is turned off.  Conduct work after this instrument is cooled. As the temperature of this instrument is very high just after the power is turned off, never touch the instrument while hot.
  • Page 245 THV-10 output OFF (XI) of THV-10 are not matching. displayed. Select the same input signal type Alarm terminal open of THV-10 as the control output Error number 4...

  • Page 246: Troubleshooting

    11. TROUBLESHOOTING 11.3 Troubleshooting General causes to be assumed and measures to be taken when an error occurs in this instrument are described in the following. For any inquiries, please contact RKC sales office or the agent, to confirm the specifications of the product.
  • Page 247 11. TROUBLESHOOTING Problem Possible cause Solution Either “1” or “2” appeared on Maximum load current value is not Reset the Maximum load current value. If the alarm monitor (heater set to an appropriate value. the Maximum load current value is not set break alarm was triggered) to an appropriate value, heater break judgment cannot be made.
  • Page 248 ON) Non-linear resistance heater break alarm Power frequency error ALM lamp flashes, Alarm output ON * THV-10 output OFF Over current alarm ALM lamp flashes, Alarm output ON * THV-10 output OFF Break of secondary side of the...
  • Page 249 The time interval between adjacent data in the query message is too long, exceeding 24-bit time Communication protocol setting is wrong Refer to THV-10 Host Communication Instructions Manual (IMR02W06-E), and set the communication protocol to “1: RKC Communication” with function block No.

  • Page 250: Replacement Of Ul Certified Fuse

    11. TROUBLESHOOTING 11.4 Replacement of UL Certified Fuse 1. Open front lid and take the fuse out of the holder. Fuse   2. Insert the new fuse. 3. Close the front lid to finish the work. The Figure shows the type of 20 A and 30 A. However, the procedure for replacement is the same as for the type of 45 A to 100 A.

  • Page 251: Removal Of Terminal Cover (For Main Circuit Terminals)

    11. TROUBLESHOOTING 11.5 Removal of Terminal Cover (For Main Circuit Terminals) The terminal cover (for main circuit terminals) of this instrument can be flipped open and removed. When attempting wiring, removal of the cover may make the job easier. Proceed as follows to remove the cover from the instrument. 1.
  • Page 252 11. TROUBLESHOOTING 3. Once the cover hinge is out of the hole, pull the cover toward you to remove. Pull the Remove the cover cover toward you After having completed the wiring of the mains circuit, install the terminal cover for the mains circuit for safety.

  • Page 253: Specifications

    SPECIFICATIONS 12-1 IMR02W05-E1...
  • Page 254 12. SPECIFICATIONS  Control output Number of phase: Single-phase Maximum rated current: 20 A AC, 30 A AC, 45 A AC, 60 A AC, 80 A AC and 100 A AC Minimum load current: 20 A: 0.6 A (When output is 98 %) 30 A, 45 A, 60 A, 80 A and 100 A: 1 A (When output is 98 %) Supply voltage for load: 85 to 264 V AC [Including power supply voltage variation] (Rating: 100 to 240 V AC) Power frequency:...
  • Page 255 Output setting range: Auto set value (control input): 0.0 to 100.0 % Internal manual set value: 0.0 to 100.0 % Set by the THV-10 front keys or communication External manual set value: 0.0 to 100.0 % Set by the setter (optional)
  • Page 256 12. SPECIFICATIONS Power proportional control (optional): Load power supply voltage: Sets the actual load power supply voltage in power proportional control Setting range: 85 to 264 V AC Alarm output (optional): Number of outputs: 1 point Output type: Transistor output Output method: Sink type Allowable load current:...
  • Page 257 12. SPECIFICATIONS  Performance  Reference performance (Performance under the standard performance condition) ±5 % + 1 digit of span Control input: Accuracy: Noise elimination ratio: Series mode: 20 dB or more (50/60 Hz) Common mode: 120 dB or more (50/60 Hz) Resolution: 1/4096 (A/D converter performance) Error during close horizontal mounting:...
  • Page 258 12. SPECIFICATIONS  Control input Control input: Number of input point: 1 point Input signal: Current input 4 to 20 m A DC Voltage input 1 to 5 V DC Voltage input 0 to 10 V DC Voltage pulse input 0/12 V DC Sampling cycle: At 50 Hz: 10 ms At 60 Hz: 8.33 ms...
  • Page 259 12. SPECIFICATIONS Current measurement (optional): Number of inputs: 1 point Input importing range (CT input monitor display range): 20 A/30 A: 0.0 to 40.0 A 45 A: 0.0 to 90.0 A 60 A: 0 to 120 A 80 A: 0 to 160 A 100 A: 0 to 200 A Sampling cycle:...
  • Page 260 12. SPECIFICATIONS  Alarm function Heater break alarm/Thyristor break-down alarm: Alarm action types: Deviation alarm (constant resistance type) Absolute value alarm (linearity resistor type) Deviation alarm (Non-linear resistance type) Alarm setting rage: Deviation alarm (constant resistance type) Settable from 0 to 100 % of the reference current or 2 A, whichever is larger.
  • Page 261 12. SPECIFICATIONS Power frequency error: Alarm determination area: Outside of 45 to 54.9 Hz and 55 to 64.9 Hz Output at Alarm state: THV-10 output OFF Over current alarm: Alarm determination area: When the load current exceeds the permissible limit (1.2 times of the maximum current rating) during...
  • Page 262 12. SPECIFICATIONS  Communication  Host communication Interface: Based on RS-485, EIA standard Protocol: RKC communication (ANSI X3.28-1976 subcategories 2.5 and A4) Modbus-RTU  Loader communication Protocol: For RKC communication protocol only (ANSI X3.28-1976 subcategories 2.5 and A4) Synchronization method: Start/Stop asynchronous type Communication speed: 38400 bps Data bit configuration:...
  • Page 263 Error recovery Self-diagnostic item Error display at error Adjustment data error Error code 1 screen and Error code 1 THV-10 output OFF Alarm is reset by removing Monitor mode A screen the cause of the alarm and are alternately displayed.
  • Page 264 12. SPECIFICATIONS  General specifications Supply voltage for instrument: 85 to 264 V AC [Including power supply voltage variation] (Rating 100 to 240 V AC) 50/60 Hz Frequency variation: At 50 Hz: 48 to 52 Hz At 60 Hz: 58 to 62 Hz Match the phase of the instrument power supply with that for the load power supply.
  • Page 265 12. SPECIFICATIONS  Environment conditions  Operating environmental conditions: Ambient temperature: −15 to +55 °C (Operation guarantee range) At the time of standalone mounting and close mounting of rating 20 A, 30 A, 45 A, 80 A, and 100 A, it will be the straight line where the rated current is 0.8 at 55 °C on the derating curve at 40 to 55 °C Ambient humidity: 5 to 95 %RH (Non condensing)
  • Page 266 12. SPECIFICATIONS  Transportation and Storage environment conditions Vibration: Number of Attenuation Level vibration slope (m/s /Hz] * dB/oct 0.048 (0.005) ⎯ 3 to 6 ⎯ ⎯ +13.75 6 to 18 1.15 (0.012) ⎯ −9.34 18 to 40 ⎯ ⎯ 0.096 (0.001) ⎯...
  • Page 267 12. SPECIFICATIONS  Standard  Safety standards UL508 (file No. E177758) cUL: C22.2 No. 14 (file No. E177758)  Other approved standards CE marking: LVD: EN60947-4-3 (Form 4), Rated insulation voltage: 240 V EMC: EN60947-4-3 (Form 4) RoHS: EN50581 The noise filter specified: In order to comply with the European EMC- and LV directive the noise filter should be applied.
  • Page 268 12. SPECIFICATIONS Immunity The EMC immunity test standards required by the standard EN 60947-4-3 ‘Contactors and motor-starters - AC semiconductor motor controllers and contactors for non-motor loads’ are presented in table 2. Table 2: EMC immunity standards compliance Test type Test standard Test level Electrostatic discharge...
  • Page 269 INDEX INDEX [Alphabetical Order] Function block 7 ··········································· 5-13, 6-15 Alarm enable/disable during STOP ············ 5-12, 6-12, 9-55 Function block 8 ··········································· 5-13, 6-15 Alarm monitor ········································· 5-10, 6-3, 9-50 Function block 9 ··········································· 5-13, 6-16 Alarm output logic ···················· 5-11, 5-12, 6-6, 6-12, 9-54 Function block 10 ··········································...
  • Page 270 INDEX Soft-start time ··························· 5-10, 5-11, 6-4, 6-7, 8-20 Soft-start time in case of break on the secondary side of the Parameter select setting 1 ····················· 5-14, 6-17, 10-18 transformer ····························· 5-11, 5-13, 6-6, 6-15, 8-37 Soft-start, Soft-down enable/disable ··········· 5-12, 6-10, 8-21 Parameter select setting 2 ·····················...
  • Page 271 INDEX INDEX [Character Order] * Mode A: Monitor mode D: Engineering mode B: Parameter select mode C: Setting mode Symbol Name Mode * Page Symbol Name Mode * Page 5-10, 5-11, ⎯ H2 Heater break alarm 2 setting 6-6, 6-8, 9-15 5-11, 5-12, 5-12, 6-10, HF Heater break alarm enable/disable...
  • Page 272 INDEX Symbol Name Mode * Page Symbol Name Mode * Page 5-14, 6-17, P5 Parameter select setting 5 10-18 5-14, 6-17, Integrated operation time 5-13, 6-13, P6 Parameter select setting 6 10-18 [upper 3 digits] 10-19 5-14, 6-17, Integrated operation time 5-13, 6-13, P7 Parameter select setting 7 10-18...
  • Page 273 The first edition: APR. 2020 [IMQ00]...
  • Page 274 RKC INSTRUMENT INC. HEADQUARTERS: 16-6, KUGAHARA 5-CHOME, OHTA-KU TOKYO 146-8515 JAPAN PHONE: 03-3751-9799 (+81 3 3751 9799) E-mail: info@rkcinst.co.jp Website: https://www.rkcinst.co.jp/english/ IMR02W05-E1 APR. 2020...

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