INST.No. INE9A INSTRUCTION MANUAL FOR SERIES THYRISTOR REGULATOR (Phaseangle firing system/ zerocross firing system) Thank you for your purchase of thyristor regulator series. Please read this instruction manual carefully to use this unit correctly and safely and also prevent a trouble in advance. Check your model. Check your model and its specifications. To our sales agent and instrumentation contractor Deliver this instruction manual to your final user. To user Keep this instruction manual until you throw into the discard. Contents Cautions on safety. Names of component parts. Installation. External dimensions. Settings 8. Connections 9. Operation. Maintenance 8. Accessories 9. Troubleshooting. General specifications Model Code A label showing the model code is pasted to the upper part of your unit. Label MODEL No.A Model code Serial No. Rated current : A : A : A : A : A : A Attachment Name Remarks Quantity Instruction manual This manual copy Accessories (Separate purchase is required.) For details, refer to Para. 8 (Page ). Setters Fuse units Rapid fuses VLJAL FUJ PFFU VLJMH FUJA URIC VLJHL FUJA URIC VLJAM FUJA URIC FUJA URIC FUJA CRLSG
8 KUMANOCHO,ITABASHIKU,TOKYO,8 Telephone: 89 Facsimile: 899 January, nd edition
CAUTIONS ON SAFETY. Preconditions for Use This unit is to be mounted inside an indoor instrumentation panel.. Symbol Marks Employed in This Unit Use in this unit. Labels Alert symbol mark Caution on high temperature Grounding terminal RATING A Rated current Meanings Caution on handling for prevention of an electric shock, injuries, or other accidents. Caution on a hot point (radiation fin) for prevention of burn. Connect a grounding part (mounting hole) to the protective conductor terminal of the power supply equipment. Make sure that the maximum load current is lower than the rated current. Use in this manual. Labels War ning Caution Reference Meanings The nonobservance of information under this symbol may result in hazardous, critical or serious injury to the user. The nonobservance of information under this symbol may result in a hazardous situation or a light injury to the user or in physical damage to the property. Information that you can use as a reference.. Summary This compact and lightweight singlephase thyristor regulator is designed for high density panel installation, and is applied to wide heating control applications with its various functions including phaseangle firing system/zerocross firing system selection, soft start time setting, and lowerlimit setting. Warnings/Cautions. Mounting direction Mount your unit vertically with its main circuit terminals (U, U) placed downward to ensure aircooling effect ventilated through its air duct structure.. Don t use your unit on any desk. Make sure to mount your unit on a panel to prevent its trouble or an injury to you by its falling down.. Mounting environment Don t operate your unit at a place where an explosive gas, an inflammable gas, or vapor exists.. Don t repair or modify your unit. To prevent an electric shock accident, a fire, or its trouble, don t repair, modify, or disassemble your unit by any person other than our qualified serviceman.. Turn the power supply off for an abnormal symptom. If you have abnormal odor, abnormal heating, or other abnormal symptoms, turn the power supply off, and inform of it to your nearest agent of CHINO Corporation. Request for securing the safety. Use your unit at lower than the rated current. Confirm the rated current on the label pasted on the upper part of your unit.. Connect a load before turning the power supply on. Never turn the power supply on without connecting a load in advance to prevent its trouble.. Applicable load A resistive load is applicable. An inductive load (transformer primary control, maximum magnetic flux density.t) is applicable only when the phaseangle firing system is selected.. Mounting of a rapid fuse Mount a rapid fuse (Separate purchase is required.) for protecting thyristor elements.. Countermeasure against digital units Higher harmonic noises are generated when your unit is used with the phaseangle firing system. Use an insulation transformer, separate your unit from a drive power line, or take other countermeasures.. Don t use any unused terminals. Don t connect any signal to any unused terminals to prevent a trouble.
. NAMES OF COMPONENT PARTS The appearance is sorted into kinds according to the rated current. The following appearance is A type. The appearance in other types is almost same as this A type. UP mark 8 Control input terminals to V DC:Short terminals and to ma DC:Short terminals and UP INPUT ma V INPUT POWER GAIN LOW Mounting hole (M) Power lamp Internal gradient setting Internal lowerlimit setting Soft start time setting 9 Setter connection terminals Manual (M) M M SOFT SW ON SW SW/control selector switch ON : Zerocross firing system OFF : Phaseangle firing system SW/unused (Fixed to OFF) Power terminals V to V AC V to V AC V U AC V 8 9 SERIES THYRISTOR REGULATOR U U Main circuit terminals Names Functions Power lamp Internal gradient setting Internal lowerlimit setting Soft start time setting SW/control selector switch SW/unused (Fixed to OFF) Main circuit terminals 8 Control input terminals 9 Setter connection terminals Power terminals Lights (green) when power is applied to power terminals 8, 9, and. Flickers in the determining period of power frequency when the power supply is applied. Is used to set gradient. The gradient becomes % when you turn this trimmer clockwise fully. Set this trimmer to % usually. An external gradient can be also connected for current/voltage input. Is used to set the output value when the control input is % (or ON between H and C terminals). The output value becomes % when you turn this trimmer counterclockwise fully. Set this trimmer to % usually. An external lowerlimit can be also connected for contact input. Is used to set the soft start time. The soft start time becomes about. second when you turn this trimmer counterclockwise fully or it becomes about seconds when you turn this trimmer clockwise fully. Selects either zerocross firing system (ON) or phaseangle firing system (OFF). Not used. Make sure to keep it turned off. Main circuit terminals (U, U) to thyristor elements These input terminals are for a current ( to madc) signal or a voltage ( to VDC) signal to control output. For current/voltage input For the connection to a gradient or a manual placed externally. For contact input For the connection to output terminals ( H C L ) of a controller, a higherlimit or a lowerlimit. These terminals are for the power supply to this unit.. For the power supply of to VAC, connect to the terminals 8 and 9. For the power supply of to VAC, connect to the terminals 8 and.
. INSTALLATION Warning Make sure to turn the power source off before installation to prevent an electric shock accident. This unit is designed as a backofpanel type to be mounted inside a panel, except for accessories (s, etc.).. Mounting Dimensions For A and A For A and A. Cautions on Installation M (mm screw hole x ) M (mm crew hole x ) Mount this unit with the UP mark( )facing upward. Ambient temperature and allowable current Mount this unit at a clean and wellventilated place free of dust particles. Separate this unit from a high temperature generating unit or similar unit. Keep a radiation space (more than mm) above and below this unit. Don t mount this unit at a place subjected to vibrations and shocks. Don t mount this unit in corrosive gas atmosphere. Rated current (%) 8 Ambient temperature ( ) Unit: mm Unit: mm The rated current is specified at an ambient temperature of o C as a reference. If the ambient temperature exceeds o C, reduce the load current, referring to the right figure. (The maximum operating temperature is o C. Use this unit at a current lower than 8% of the rated current in this case.) 8 Secure sufficient strength of the mounting plate (panel). (More than mm thickness is required for an iron plate.) Rated current and weight Rating current Weight Minimum space when units are mounted horizontally. Minimum space when units are mounted horizontally. For A and A M (mm screw hole x ) A About.kg Reference Mounting of accessories A About.kg Refer to the external views and mounting diagrams in [8. Accessories] A A A About.kg About. kg About.9kg 88 A About.9kg.. Unit: mm Minimum space when units are mounted horizontally. (Caution) Keep a radiation space of more than mm above and below this unit.
. EXTERNAL DIMENSIONS For A and A For A and A.. M mounting hole.. M mounting hole UP INPUT ma POWER GAIN INPUT ma V UP POWER GAIN V INPUT LOW INPUT LOW SOFT SOFT SW ON SW ON (M).. (M) SW M M V U 8 AC 9 V SERIES U U.... 9. 8.... M M V U 8 AC 9 V U SW U.. 8. 88.. 8.. Unit : mm Unit : mm For A and A. φ. M mounting hole UP INPUT ma V INPUT POWER GAIN LOW (M) M SOFT SW ON SW 88. M V U AC 8 9 V. SERIE U U. 9...... Unit : mm
. SETTINGS Caution When you change the control system, we recommend to turn the power source off. For the gradient setting and the lowerlimit setting, change the settings gradually to avoid affection to a lord or peripheral units by an abrupt change of output.. Control System Selection (SW) OFF SW OFF: Phaseangle firing SW system(default) ON: SW: Not used (Fixed to OFF) Zerocross firing system. Setting (GAIN) External gradient Not connected Connected Set the gradient by this trimmer Output (%) Set this trimmer to % and set the gradient by an external gradient.. Lowerlimit Setting (LOW) This trimmer is used to set the output value when the control input is %. Set this trimmer to % by turning it fully counterclockwise usually. Output (%) % % Control input (%) % % Control input (%) The above figure shows the lowerlimit setting when the gradient is set to %.. Soft Start Time Setting (SOFT) The soft start time becomes approx. seconds when turning this trimmer fully counterclockwise, and becomes approx. seconds when turning this trimmer fully clockwise POWER % % GAIN % % LOW sec sec SOFT Reference Power lamp (Lights green when power is supplied) setting trimmer Lowerlimit setting trimmer Soft start time setting trimmer Control system selector switch (SW) Phaseangle firing system..the system for controlling the output by changing the conductive angle θ (ON timing) in the half cycle (8 o ) of the power supply. The control becomes continuous as compared with the zerocross firing system. This control system is also used for transformer primary control. However, since the output contains higher harmonics, it may cause external noises. Zerocross firing system..the systems for controlling the output by deciding ON/OFF in every cycle of the power supply. Since the power supply is turned on from V (zero cross point) voltage, noises are reduced as compared with the phaseangle firing system. However, since the maximum current flows during each ON cycle it may cause flickering. Reference Control system Soft start This function is provided to increase the output gradually up to the specified output when the power supply is turned on or when the control input value changes abruptly. This function can prevent a surge current from being generated due to an abrupt change of the primary control output of transformer. You can set the time (from % to % output) from about second to seconds. 8
. CONNECTIONS Warning Turn the power source off before connections to prevent an electric shock accident. Perform connections by experienced persons having the basic knowledge of wiring.. Cautions on Connections For the connections to the main circuit, use a cable having a sufficient allowance to a load current. For the connections to other terminals, twist. ~.mm cables.. Main Circuit Terminals/Power Terminals (U, U / 8 9 ) Make sure that the phase of the main circuit (U, U) is same as the phase of the power supply (8 9 ). (U and 8, U and 9 or ). If the phases are different, you can not get a normal output. ) Main circuit voltage: For to VAC or to VAC Power supply to VAC to VAC /Hz Rapid fuse to V connection to V connection 98 * This is used as a grounding terminal of this unit. Connect it to the protective conductor terminal of the power supply equipment. ) Main circuit voltage: For other voltage than to VAC or to VAC U Power terminals Thyristor regulator Setting input terminals Main unit mounting hole * U Load. Setting Input Terminals ( to ).. Current/voltage input signals ) Without a Current signal ( to madc) to ma ) Manual Voltage signal ( to VDC) Current signal ( to ma DC) Voltage signal ( to V DC) For manual only to ma Manual VLJMH (kω ) AUT. MAN Short to V to V Manual AUT. VLJMH MAN (kω ) Short Manual JLJMH (kω ) Power supply VAC /Hz Transformer /V Rapid fuse 98 * This is used as a grounding terminal of this unit. Connect it to the protective conductor terminal of the power supply equipment. U Power terminals Thyristor regulator Setting input terminals Main unit mounting hole * U Load ) Current signal ( to ma DC) to ma VLJAL (kω ) Voltage signal ( to V DC) to V VLJAL (kω ) 9
) Manual with gradient to ma VLJAL (kω ) Manual VLJMH (kω ) Current signal ( to madc) AUT. MAN. to V VLJAL (kω ) Voltage signal ( to VDC) Manual VLJMH (kω ) AUT MAN ) Output indicator (VL JAM) Current signal ( to madc) Voltage signal ( to VDC) Setter with output indicator (VLJAM) (kω ) Manual (kω ) Output indicator to ma AUT. MAN Setter with output indicator (VLJAM) (kω ) to ma AUT. Manual MAN (kω ) * 9 * Output indicator V V U U U 9 U * 9 only when the power voltage of main circuit is to V and in other voltage. ) units parallel running (without s) Current signal ( to madc) Voltage signal ( to VDC) to ma Short Short Short to V Short Short Short
) units parallel running with gradient s Current signal ( to madc) Voltage signal ( to VDC) to ma to V VLJAL (kω ) VLJAL (kω ) VLJAL (kω ) VLJAL (kω ) VLJAL (kω ) VLJAL (kω ).. Contact input signal Higherlimit connection C H L Higherlimit VLJMH (kω ) Connection of a higherlimit and a lowerlimit C H Lowerlimit Higherlimit L (kω ) (kω ) Higherlimit/lowerlimit (combined type) connection C H L Higherlimit/lowerlimit VLJHL H L Lowerlimit setting Higherlimit setting (kω ) (kω ) Using setting trimmers of this unit only C H L Lowerlimit setting Use the lowerlimit setting trimmer of this unit Higherlimit setting Use the gradient setting trimmer of this unit.
. OPERATION. Check Warning Turn the power source before operation to prevent an electric shock accident. Check the connections again. Check the power voltage and the load capacity again. Measure the insulation resistance with a V megger. Short main circuit terminals U and U for the dielectric strength test. This unit becomes hot due to selfcooling type. Make sure to mount the unit with the UP mark ( ) facing upward so as not to interrupt the radiation effect. If the unit is mounted in the direction other than specified, the interior becomes hot to cause a failure or a trouble. Check the control system selection again.. Operation ) In case of auto run Set the set value (SV) of a controller. If an auto/manual selector switch is connected, select it to AUTO. Set the gradient. Make sure that the stable control is executed. Change the parameters (PID constants in particular) of the controller and adjust the gradient setting suitably, if the control is unstable. ) In case of manual run If the auto/manual selector switch is connected, select it to MANUAL. Set a desired output manually. Change the setting manually while monitoring the temperature.. MAINTENACE. Daily Check and Maintenance The checking and inspection of the following points are required to keep this unit run under the best conditions at all times. Items Fastening of bolts and screws on the terminal board Cleaning Contents If the bolts for the main circuit terminals (U, U), in which a large current flows, are loosen, they may be heated to cause wiring damage. If this unit is mounted at a dusty place with conductive dust particles like iron powder, dust particles may attach to the unit to cause a failure or a trouble due to poor insulation. Remove dust particles attached by using a cleaner.. Consumable Parts Don t repair or modify this unit by replacing any parts by other persons than our qualified servicemen. Caution For replacing consumable parts or other parts, please contact your nearest sales agent of CHINO Corporation. Parts names Control PCB Reference exchange intervals to 8 years Working conditions and others The higher the ambient temperature is the shorter the life is. In addition, the life depends largely upon the atmospheric conditions (kinds of gases, kinds and degree of dust particles, etc.).
8. ACCESSORIES (Separate purchase is required.) 8. Setter Model VLJAL VLJMH VLJHL Use setting, lowerlimit setting Manual setting, higherlimit setting Higherlimit /lowerlimit setting (Higherlimit/lowerlimit combined type) Specifications Variable resistor kω Variable resistor kω Variable resistor kω (For lowerlimit), kω (For higherlimit) External dimensions Mounting diagram. φ Max φ Weight: Approx. g M9P. Max R φ Max Screw M φ 8 Unit:mm φ. φ Panel cutout 9 8 MIN MIN 8 8 MAX MAX Higherlimit setting trimmer φ(mounting hole) Lowerlimit setting trimmer 8.. Unit:mm 8 Panel cutout Weight: Approx. g Model Use Specification VLJAM Output indicator ( setting manual setting auto/manual selector switch) Voltmeter ( tov or to V) Variable resistor kω, kω Manual setting trimmer Output indicator 9 Unit:mm External dimensions Mounting diagram 9 9 Manual/auto selector switch setting trimmer 9 9. 9. Panel cutout Weight: approx. g 8. Fuse Unit Model FUJ Model FUJA to JA Applicable current A Applicable current JA:A JA:A JA:A JA:A JA:A Specification Rapid fuse holder Specification Rapid fuse holder with cover φ. (Mounting hole) Mounting hole size φ. M screw Rapid fuse Micro switch 9 Unit:mm Weight: Approx. g Contact signal connection terminal Mounting hole size φ. hole 8. Rapid Fuse Rated Type current A A A A A A PFFU URIC URIC URIC URIC CRLSG Unit:mm Weight: Approx. g 8 M screw (female)
9. TROUBLESHOOTING ) Output continues. Check and symptoms Is the load open? Is lowerlimit set to %? Connect the load correctly. Causes and remedial measures Set the lowerlimit to be near % and monitor the condition. If this unit is not restored to normal condition as a result of the above remedial measures, the thyristor element may be defective. Contact your nearest sales agent of CHINO Corporation. ) Output is not proportional to the control input. Check and symptoms Is the lowerlimit set to be high? Is the gradient set to be low? Are the phases of the power supply and main circuit same? Causes and remedial measures Set the lowerlimit to be near % and check the condition. Set the gradient to be near % and check the condition. The phases should be same. Refer to the connection diagram in.. Is the power supply distorted? If the power waveform is distorted, the output is not proportional to the input. Use the power supply having no distorted waveform and check the condition. If this unit is not restored to normal condition as a result of the above remedial measures, the unit may be defective. Contact your nearest sales agent of CHINO Corporation. ) No output Check and symptoms Power lamp (green) does not light. Power lamp (green) lights. Causes and remedial measures Power terminals(8 to )are not connected correctly. Connect them correctly. The main circuit and/or the load are connected correctly. Connect them correctly. The phases of the power supply and the main circuit are not same. The phases should be same. Refer to the connection diagram in.. set to %. Set it to near % and check the condition. Input connections( to terminals)are wrong. Connect them correctly. Input signal is abnormal. Apply normal input signal. Power lamp (green) flickers. Power supply is distorted. Refer to ). If the unit is not restored to normal condition as a result of the above remedial measures, the unit may be defective. Contact your nearest sales agent of CHINO Corporation.
. GENERAL SPECIFICATIONS Phase : Single phase Rated voltage : tovac, to AC (V system and V system are selected at terminals.) Allowable voltage fluctuation : % to % of the rated voltage Rated frequency : /Hz (Automatic selection) Allowable frequency fluctuation : ±Hz (operation guarantee) and ±Hz (performance guarantee) of the rated frequency Rated current :,,,,, A AC Input signal : to madc, to VDC or onoff contact signal Input resistance : Ω ( to madc), kω ( to VDC) Output range : to 98% of the rated voltage Minimum load current :.A (at 98% output) Applicable load : Resistive load and inductive load (Transformer primary control: Phaseangle firing system only, Magnetic flux density.t or less) Control system : Phaseangle firing system without feedback Zerocross firing system * Selectable by DIP switches Output setting range : setting... to% of the output range (A setting trimmer is built in.) Lowerlimit setting... to% of the output range (A setting trimmer is built in.) Other functions : Soft start, soft updown ( to seconds variable) Soft start at recovery from momentary interruption Working temperature range : ºC to ºC (Operation guarantee), to ºC (Performance guarantee) Working humidity range : % to 9% RH (No dew condensation is allowable.) Insulation resistance : Minimum VDC, MΩ Between main circuit terminals, power terminals, and power terminals and a case Dielectric strength : V AC minute between main circuit terminals and a case