Eurotherm 451 Series User Manual
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Eurotherm 451 Series User Manual

Eurotherm 451 Series User Manual

Thyristor units
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Eurotherm 451 Series User Manual

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Summary of Contents for Eurotherm 451 Series

  • Page 1 Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...
  • Page 2 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 3 Manufactured by EUROTHERM AUTOMATION S.A. ISO 9001 - EN 29001 Certified Printed in France 12/94 No HA 174485 Issue 1 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 4 EUROTHERM A U T O M AT I O N . EUROTHERM AUTOMATION have made every effort to guarantee the accuracy of this spe cification. However. technology...
  • Page 5 For additional information, please contact your EUROTHERM office where technicians are at your service to advise and assist you with commissioning. Printed in France 12/94 No HA 174485 I s s u e 1 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 6: Table Of Contents

    2.1 General information common to the 3 series 2.2 Partial load failure detection 2.3 Dimensions and weight 2.4 Installation 2.5 Internal high speed fuse replacement Chapter 3. 451 SERIES SOLID STATE CONTACTORS 3.1 Main function performed 3.2 Coding 3.3 Terminal identification 3.4 Wiring diagram 3.5 Partial load failure detection setting...
  • Page 7 Contents (Continued) page Chapter 5. THREE-PHASE WIRING DIAGRAMS 5.1 451 series solid state contactors 5.2 455 and 461 series power units 5.3 "Master-Slave" configuration APPENDIX. DIAGNOSTICS (455 and 461 series) Con .2 User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 8: Chapter 1 Introduction

    Introduction Chapter 1 INTRODUCTION The Eurotherm 451-455-461 thyristor unit range offer a vast number of possibilities which, for the most part, meet the requirements of the low and medium power market. The current range is from 15 A to 150 A for voltages of up to 660 V rms.
  • Page 9 The 451 series can be equipped with a partial load failure detection. 455 series (models 455 to 458) The input signal and thyristor firing mode configurations are set at order and cannot be changed (soldered bridge configuration).
  • Page 10 Specifications Chapter 2 TECHNICAL SPECIFICATIONS page Contents 2.1 General information common to the 3 series 2.2 Partial load failure detection 2.3 Dimensions and weight . 2.4 Installation 2.5 Internal high speed fuse replacement 451-461 User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 11: Chapter 2. Technical Specifications

    Specifications Chapter 2 TECHNICAL SPECIFICATIONS 2.1 GENERAL INFORMATION COMMON TO THE 3 SERIES . Supply voltage +10 % -15 % of the nominal voltage . Residual load current in locked status : <30 mA Heat dissipation Each unit dissipates a maximum of 1.3 W per amp issued. This dissipation induces a rise in the ambient temperature if the units are mounted in cabinets.

  • Page 12: Partial Load Failure Detection

    Specifications 2.2 PARTIAL LOAD FAILURE DETECTION Partial load failure detection exists as an option for the 451 series and comes as standard for the 461 series. • Partial load failure (PLF) detection principle: comparison of the load current and voltage (451 series) or of the power supply (461 series) to detect an increase in impedance.

  • Page 13: Installation

    Specifications 2.4 INSTALLATION Each module is inserted in a pressed steel baseplate. The baseplate can be mounted: • on an asymmetrical pair of DIN rails • or attached on a vertical wall. Rotation " " 4 o 4.2 holes rod B a s e p l a t e Figure 2.1 Attachment Table 2.2 Model...
  • Page 14 Specifications For assembly: • tilt the module approximately 20 degrees forwards in relation to the horizontal • insert the rotation rod in the baseplate recipient (see fig. 2.1) • raise the module to the horizontal • turn the lock by a quarter-turn. The minimum space between 2 modules side by side must be at least 20 mm.
  • Page 15 Specifications The external wiring is made via the front of the haseplate terminal block, with the module pulled out. For low currents, the connections are made with screws. The power cables are attached to the power terminal blocks marked " L " (Phase) and "...

  • Page 16: Internal High Speed Fuse Replacement

    Specifications 2.5 INTERNAL HIGH SPEED FUSE REPLACEMENT The 451 series static contactors and the 455 and 461 series power units (nominal currents from 15 to 125 A) are equipped with internal high speed fuses. They are fitted at the rear of the pull-out module.
  • Page 17 Otherwise, we cannot guarantee the protection of the unit against over-currents. The guarantee is subject to the use of the high speed fuses in this table. • For the use of different high speed fuses, consult Eurotherm Automation beforehand. Table 2.4 References Suppliers voltage...
  • Page 18 451 series Chapter 3 451 SERIES SOLID STATE CONTACTORS Contents page 3.1 Main function performed 3.2 Coding 3.3 Terminal identification 3.4 Wiring diagram 3.4.1 Power 3.4.2 Power supply 3.4.3 Partial load failure detection output 3.4.4 Logic input 3.4.5 Multi-input 3-11 3.5 Partial load failure detection setting...

  • Page 19: Chapter 3. 451 Series Solid State Contactors

    451 series Chapter 3. 4 5 1 SERIES SOLID STATE CONTACTORS 3.1 MAIN FUNCTION PERFORMED "ON/OFF" thyristor firing as a function of a logic input signal. Setting of thyristor firing to zero voltage. As a option, partial load failure detection.

  • Page 20: Coding

    451 series 3.2 C O D I N G Model / Current code / Voltage code / Fan power supply / Option / 00 Current Nominal Voltage Model Nominal current code code voltage 15 A (500 V max) 120 V...

  • Page 21: Terminal Identification

    451 series 3. 3 T E R M I N A L IDENTIFICATION Table 3.1 Term. No. Description Relay contact open in alarm status (code 37) or closed in alarm status (code 37/83) Not used Not used Logic input (+)

  • Page 22: Wiring Diagram

    Internal fuse Load Earth Figure 3.1 W i r i n g diagram of a 451 series solid state contactor in single-phase configuration. Control signal from a controller Note 1. External fuse only for the 150 A nominal current. Note 2. Power supply between terminals 8 and 9 for the 220 V phase voltage.
  • Page 23 451 series The load current passes through the power terminals "L" (Line) and " " (Load). It is essential to observe the identification of these 2 terminals in order to prevent any incorrect operation. The "L" terminal must be linked to the supply phase.
  • Page 24 451 series 3.4.2 P o w e r s u p p l y The supply voltage is used to power the fan (453 and 454 module) and the partial load failure detection circuit (optional). In the case of the "Partial load failure" option, terminal 8 must be connected to the neutral or to the second phase, directly connected to the load (see figure 3.1 and chapter 5).
  • Page 25 451 series 3.4.3 Partial load failure detection output For the modules equipped with the partial load failure detection (optional, code 37 or 37 / 83), the alarm is indicated: • by the luminous indicator light mounted on the front fascia (lit when a partial load failure is detected) •...
  • Page 26 3.4.5 "Multi-Input" In the "Multi-input" option, the module inputs must be connected in series. To protect the 451 series module inputs (which are in the low impedance "Multi-input" option), two types of connection can be made. The inputs must be connected either in series with a unit at the standard input, or in series with an equivalent resistor.
  • Page 27 451 series • I n series with a standard input Multi-inputs Standard input 0 - - 0 Logic signal from 15 to 28 V series series s e r i e s s e r i e s module (6 mA min) m o d u l e...

  • Page 28: Partial Load Failure Detection Setting

    451 series 3.5 PARTIAL LOAD FAILURE DETECTION SETTING (OPTIONAL) To guarantee correct operation, the load current cannot be less than 10 % of the nominal current of the thyristor unit (if a 100 W bulb is used as a load to monitor to module in a workshop, the fault indicator light on the front fascia will always be lit up).
  • Page 29 (option only available with PLF option) Fuse fail 11511 ..-'-----)Def. fusible Internal fuse blow-out indication Figure 3.4 Front fascia of a 451 series module 3-12 451-461 User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 30: Main Function Performed

    455-461 Series Chapter 4 455-461 SERIES POWER UNITS Contents 4.1 Main function performed 4.2 Technical characteristics 4.3 Coding 4.3.1. General 4.3.2 4 5 5 series. Coding 4.3.3 461 series. Coding 4.4 Terminal identification 4.5 Wiring diagram 4-10 4.5.1 Power 4-10 4.5.2 Control (general) 4.12 4.5.3 P o w e r supply...
  • Page 31 455-461 Series Chapter 4. 455 AND 461 SERIES POWER UNITS 4.1 M A I N FUNCTION PERFORMED • Electrical power monitoring as a function of an analogue input signal. • Thyristor firing mode: - thyristor phase angle - slow cycle ( c y c l e time 10 s at 50% power) and fast cycle ( c y c l e time 800 ms at 50% power) - (fast and slow) cycle with soft start in thyristor phase angle...
  • Page 32 455-461 Series 4.2 TECHNICAL CHARACTERISTICS The 455 and 461 series units contain an internal feedback loop. The square of the rms load voltage represents the dissipated power for a purely resistive load, the value of which is constant with the working temperature variation. The 455 and 461 series are equipped with compensation of the supply variations of -15% to +10% of the nominal voltage.
  • Page 33 455-461 Series The following table shows the stabilization of the output power on a constant resistance as a function of the supply variations; Table 4.1 Power feedback Power Supply voltage with reference to supplied I%) variation the maximum power (%) range (%) 0 to 10 ±1...
  • Page 34 455-461 Series In the 455 and 461 series, the thyristors are fired by a trigger pulse train of a maximum of 5 ms. To reduce the cost price of the electronics, it is possible, in most single-phase applications, to send trigger pulses every 10 ms so that the thyristors are polarized directly (anode positive in relation to cathode) or inversely (anode negative).

  • Page 35: Coding

    455-461 Series 4.3 CODING 4.3.1 General The unit coding can be performed with a full code (all the coding fields given below) or with a simplified code (461 series only) without the specification of the drive signal or of the thyristor firing mode.
  • Page 36 455-461 Series 4.3.2 4 5 5 series. C o d i n g Model / Current / Voltage / Power / Control / Firing / Option / 00 code c o d e s u p p l y s i g n a l m o d e Current Nominal Code...
  • Page 37 pries 4.3.2 461 stoles. Coding Model / Current Voltage / Power / Control / Firing / Option /00 code c o d e s u p p l y signal m o d e Current Nominal Code code voltage Nominal current Model 120 V 15 A (500 V max)

  • Page 38: Terminal Identification

    455-461 Series 4.4 TERMINAL IDENTIFICATION Table 4.2 Description Terminal 455 series 461 series Not connected "Partial load failure" alarm ouput Not connected "Partial load failure" alarm output Not connected Current image * Manual input Manual input External signal input External signal input Not connected Not connected Neutral or second phase...

  • Page 39: Wiring Diagram

    455-461 Series 4.5 W I R I N G DIAGRAM 4.5.1 Power Installation protection and cut-off device Figure 4.2 W i r i n g diagram of a thyristor unit in single-phase configuration. Control signal from a controller Note 1. External high speed fuse only for the 150 A nominal current. Note 2.
  • Page 40 455-461 Series The load current passes through the power terminals "L" (Line) and " " (Load). It is essential to observe the identification of these 2 terminals in order to prevent any incorrect operation. The "1" terminal must be connected to the supply phase. The other end of the load is connected either to the neutral or to the second phase, depending on the selected configuration (between phase and neutral or between phases).
  • Page 41 455-461 Series 4.5.2 Control (General) Figure 4.3 shows the wiring diagram of the control and electronic power supply. Terminal 14 (current limit) is only used for the 461 series. The analogue control input can be in voltage or in current. The "Auto"...

  • Page 42: Power

    455-461 Series 4.5.3 Power supply The wiring diagram of the voltage between terminals 8 and 9 (220 V) or 8 and 10 (voltage other than 220 V) provides the power supply: • o f the electronic drive (see fig. 4.3) •...
  • Page 43 455-461 Series 4.5.4 Control signal The unit control can be performed by an external analogue signal or manually (by a potentiometer, see fig.4.3, page 4-12). External analogue signal (from a controller or another signal source) The connection is made between terminals 5 and 6 (where terminal 5 is the positive polarity and terminal 6 is the reference 0 V).
  • Page 44 455-461 Series Serial wiring diagram For a 0-10 mA input, the input impedance of each unit is 1 Icc2. The 10 V voltage is required by the unit at 10 mA. For the 0-20 mA and 4-20 mA inputs, the impedance of an input is 250 O. The voltage of each input is 5 V to 20 mA.
  • Page 45 455-461 Series 4.5.5 Current limits (461 series) As indicated in the "Technical characteristics" section, the 455 and 461 series contain an internal feedback of V2. The 461 offers two additional functions for each load current measurement: • a linear current limit and •...
  • Page 46 455-461 Series Threshold current limit This function is used to limit the load current to a desired value, independent of the input signal and the linear current limit. The "Threshold current limit" input (terminal 14) can be controlled • b y an external setting potentiometer (connected between terminal 12 and terminal 6, with the slide contact powering terminal 14 ) •...

  • Page 47: Current Limit

    455-461 Series Lock by Heatsink quarter-turn detection indication ' a l — F a i l detection setting potentiometer M a u t - - c a l + Adjust d 9 S e u i l — e Test ,------)Ir O I limit Limit.

  • Page 48: Load Voltage Image Output

    As an option (code 83), this contact is closed in alarm status. This output is suitable to drive a EUROTHERM, type 603 alarm unit. 4.5.8 Load current image output (461 series) The "Load current image" output is available between terminals 3 and 6 (0 V) on 461 series units.

  • Page 49: Slave" Output

    The capacity of this output is characterized by the number of "Slaves" as follows: • one 451 series contactor, standard input, or • four 451 series contactors, parallel TTL inputs, or • four 451 series contactors, serial "Multi-inputs". Note...

  • Page 50: Input And Drive Mode Configuration

    455-461 Series 4.6 INPUT AND DRIVE MODE CONFIGURATION (461 SERIES) The 461 series units are equipped with a strip of DEL-switches used to select the required input type, thyristor firing mode and the frequency used (50 or 60 Hz). P4 potentiometer Relay Firing delay or soft Partial load failure...

  • Page 51: Input Type

    455-461 Series 4.5.1 I n p u t t y p e The input signal type is configured with Switches 1 to 4. In tables 4.3 to 4.6, 1 indicates the lowered switch position. • External input (external signal) Table 4.3 Automatic DIL-switch position input signal...

  • Page 52: Frequency

    455-461 Series 4.6.2 Thyristor firing mode The thyristor firing modes available for the power units can be configured with DIL-switches 5 to 7 (461 series) or soldered bridges 5 to 7 (455 series) and with two jumpers J1 and J2 fitted on the board.

  • Page 53: 461 Series Settings

    455-461 Series 4.7 461 SERIES SETTINGS 4.7.1 Partial load failure detection To guarantee correct operation, the load current cannot be less than 10 % of the nominal current of the thyristor unit (if a 100 W bulb is used as a load to monitor to module in a workshop, the fault indicator light on the front fascia will always be lit up).

  • Page 54: Current Limit

    455-461 Series 4.7.2 Current limit Linear limit (by potentiometer on the front fascia) First of all, make sure that the load is connected. In the event of use of an external potentiometer or an external 0-10 V signal, make sure that the "Threshold current limit"...
  • Page 55 455-461 Series Threshold current limit. External potentiometer This limit independent of the drive signal is: • 110% of the nominal unit current (terminal 14 directly connected to terminal 12), • or adjustable controlled by an external potentiometer, of approximately 10 kf2, connected between terminal 12 (+ 10 V) and terminal 6 (0 V);...
  • Page 56 455-461 Series 4.7.3 Soft start and trigger delay settings To access the setting potentiometer, the module must be plugged out of its baseplate. The same potentiometer (P4, see figure 4.4) is used to make two different settings depending on the selected thyristor firing mode. •...
  • Page 57 455-461 Series • Trigger delay time Trigger delay time setting for the thyristor firing modes - Single cycle - Burst firing without soft start. In the single cycle or fast or slow cycle modes, P4 sets the delay of the first firing of each burst mode.

  • Page 58: Chapter 5. Three-Phase Wiring Diagrams

    Three-phase wiring diagrams Chapter 5 THREE-PHASE WIRING DIAGRAMS Contents 5.1 4 5 1 series solid state contactors5 5.2 4 5 5 and 461 series power units 5.3 "Master-Slave" configuration 451-461 User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 59: Series Solid State Contactors

    PLF detection circuit power Star with neutral suPpq (4 wires) Figure 5.1 Example of 451 series unit three-phase wiring diagram (non-fan-cooled). Load in star with neutral. 451-461 User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 60 5.2 (supply of fan code 43, bi-voltage 350-450 V and 200-260 V). Ph 1 Ph 2 p h 3 Logic control signal Installation protection and cut-ott d e m o 451 series 451 series Fan-cooled Fan-cooled unit unit • 1 : Z Z )

  • Page 61: And 461 Series Power Units

    In the case of a 3 wire configuration (load in star without neutral or in closed delta, 3 phase control is not possible with 455 and 461 series units. In this case, use a 455 or 461 unit ("Master") and 451 series solid state contactors ("Slaves"), see next section.
  • Page 62 Three-phase wiring diagrams Ph 1 P h 2 Ph 3 N 1 1 1 ' i Analogue control signal Installation protection and cut-on device 455 or 455 or 455 or 461 series — T 461 series 461 series 0 SA fuses Three-phase load Star with neutral...
  • Page 63 Three-phase wiring diagrams Ph 1 P h 2 P h i Analogue conuol sIgntu Installabon and cut-off • protection d o m e • 455 or 455 oi 1 4 5 5 or 1 4 6 1 series 1 461 series —...

  • Page 64: Master-Slave" Configuration

    ("Slave") which controls the power on one phase ("Two phase control") or on two phases ("Three phase control"). The 455 and 461 series are used as a Master (analogue control signal); the 451 series (logic input) is used as a Slave.
  • Page 65 In this configuration, a prior recognition of the order of the phases must be performed in order to connect in the following obligatory order: - 451 series (Slave) on phase 1 - 455 or 461 series (Master) on phase 2 - direct line on phase 3.
  • Page 66 36 (220 V), 19 (220 V between 8 and 9), or 43 (110 or 380 V between 8 and 10). Load in star without neutral or in closed delta. For the use of a 451 series module (Slave) with the PLF option, terminal 8 is also used for the partial load detection circuit power supply.
  • Page 67 220V between 8 and 9). Load in star without neutral or in closed delta. For the use of a 451 series module (Slave) with the PLF option, terminal 8 is also used for the partial load detection circuit power supply.
  • Page 68 EUROTHERM type 260 Diagnostic unit which can be connected on the front fascia. The 20-way connector of the EUROTHERM type 260 unit is used to display the unit parameter values on a digital display.
  • Page 69 Battery recharge Figure App.1 Wiring diagram of the EUROTHERM type 260 diagnostic unit with a 455 or 461 series unit A p p - 2 4 5 1 - 4 6 1 U s e r M a n u a l...
  • Page 70 Appendix Thyristor firing mode: Phase angle (0) Table App.2 For 0 % For 50 % Pod- For 100 % Description Power tion Power Power 0 . 90. 8 . 0° 9 = 180° Current image (nominal load)* 2,5 V Manual input Not used PLF alarm +14 V...
  • Page 71 Appendix Thyristor firing mode: Fast cycle and Single cycle Table App.2 Posi- For 50% For 100 % For 0 % power power tion Description power Current image Modulation (nominal load)* 0-5 V Manual input Not used PLF alarm * + 14 V - 12.6 V - 12.6 V (outside alarm)
  • Page 72 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 73 Fax (1)-703-787-3436 Fax (49) 6431-298119 Sales and Service in over 30 countries F o r countries not listed above all enquiries/orders to' Eurotherm Controls Ltd Faraday Close, Durrington Worthing West Sussex, BN13 3PL ENGLAND / Telephone (44)-903-268500 Fax (44)-903-265982 © Copyright Eurotherm Automation S.A.1994 All rights reserved.
  • Page 74 Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...

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455 series461 series

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