Single Phase Power Thyristor Units User Manual
Contents
1. Figure 1 4 General view of 7100A power thyristor unit 125A to 250A lite version only 7100A User Manual Identification 1 2 TECHNICAL SPECIFICATIONS 1 2 1 Power Nominal current 16A to 250A at 45 C see product code Nominal voltage 100 V to 500 V see code Frequency Use from 47 to 63 Hz Dissipated power 1 3 W approx per amp Cooling Ratings up to 200 A Natural convection 250 A 115 V or 230 V fan consumption 10 VA 1 2 2 Load Single phase industrial load Categories of use The categories of use applicable for each unit are indicated on the identification label AC 51 Non inductive or low inductance loads furnace resistances Resistive load with low temperature coefficient AC 55b Switching of incandescent lamps Short wave infrared elements SWIR units 100 A only AC 56a Switching of transformers Transformer primaries and high temperature coefficient resistive loads 1 2 3 Dimensions Rating A Height mm Length mm Depth mm All Full Lite Options Base 1 Option 2 16 to 40 63 80 to 100 125 to 250 Note 1 Basic product without alarm option or control except V2 and OL Note 2 Product with one control option I2 or V2CL or one alarm option GRF or DLF 7100A User Manual 1 7 Identification 1 2 4 Control Supply Self powered from line or e2. ALARM DIAGNOSTIC SUMMARY The table below summarises all status LED information needed to diagnose the fault Alarm versions options ow y HOY DIAGNOSTIC No firing Over Over Thyristor Thyristor alarm current temperature short circuit short circuit Phase angle Firing Firing or or inhibited inhibited Total zero see page 5 7 load failure crossing y Total load failure Y Partial load failure Figure 5 1 Diagnosing operation and alarms according to front panel LED status Alarms Chapter 5 ALARMS Options 5 1 SAFETY MECHANISMS The alarms on the 7100A protect the thyristors and the load against certain types of abnormal operation and provide the user with information about the type of fault The user is responsible for installing independent safety mechanisms which must be inspected regularly Given the value of the equipment controlled by the 7100A this is strongly recommended Eurotherm can supply various types of suitable alarm detector Alarms are not under any circumstances a replacement for personnel protection Danger 5 2 ALARM STRATEGY Load monitoring option monitoring of load and thyristors Over Load Alarm option protection against exceeding a current threshold In addition the unit has active securities Network voltage default detection no network or supply voltage not high enough and frequency error
3. Over temperature protection fan cooled units 250 A only 5 2 1 Firing cut off Over Load Overheating for current ratings 250 A only e Supply voltage stops the thyristor firing 5 2 2 Alarm priority Only one alarm is signalled if several faults occur simultaneously Over load and standard alarms thermal faults and thyristor short circuits take priority over load fault display 5 2 3 Memorisation Load monitoring and standard alarms are not memorised After an alarm has been detected and once the fault conditions have cleared signalling for these alarms LED and relay returns to the non alarm position OverLaod alarm is memorised and must be acknowledged Thyristor short circuit and neutral cut off require repairs Alarms 5 3 LOAD MONITORING Two diagnostic options are available GRF option Gross Fault which permits to detect the following serious faults Total Load Failure TLF Thyristor Short Circuit THSC Over Heating T for units 250 A only DLF option Diagnostic Load Failure presents the same fault detection as GRF option with in addition the Partial Load Failure detection PLF Red LED Red LED Over temperature 2125 A Serious faults Orange LED Partial load failure DLF alarm adjustment and diagnostic push button Figure 5 2 Layout of front panel LEDs with GRF and or DLF option LED State Firing Typical DLP stop
4. Invensys EUROTHERM ENG User Manual 7100A ADVANCED CONTROLLERS SINGLE PHASE POWER THYRISTOR UNITS 7000 RANGES User Manual Copyright Eurotherm Limited 2002 All rights reserved All reproduction or transmission in any form whatsoever and using any procedure electronic or mechanical including photocopying and recording without written permission from Eurotherm is strictly prohibited Ref HA176499 ENG Issue 3 0 2006 i Contents CONTENTS Page European directives and applicable standards iii Commissioning flowchart 00 cece cece eens iv Chapter 1 Identification of power thyristor units 1 1 Chapter2 Installation 0 0 0 0 cece ee eee 2 1 Chapter3 Firing modes 0 000 eee eee 3 1 Chapter 4 Control and limits 4 1 Chapter 5 Alarms 0 0 sonen 5 1 Chapter6 Maintenance 2 0c cece ee eee 6 1 Eurothem a occ ee es eee 7 1 PURPOSE OF MANUAL This is the Issue 3 User Manual It describes the Basic Version and all options for 7100A series power thyristor units with current ratings from 16 A to 250 A ii 7100A User Manual European directives and applicable standards EUROPEAN DIRECTIVES AND APPLICABLE STANDARDS COMPLIANCE WITH PRODUCT STANDARD 7100A products comply with the terms of product standard EN 60947 4 3 Contactors and motor starters AC semiconductor controllers an
5. Simultaneous current threshold adjustable from 20 to 100 using potentiometer on front panel Signalling Red ICO LED and alarm relay contact Acknowledged by logic input 1 2 8 3 Alarm relay Available with one of the Alarm options The relay contact 0 25 A 230 Vac 32 Vdc is either open on alarm or closed on alarm depending on the product code Eurotherm s policy of continuous product improvement and development means that the specifications in this document may be modified without prior notice 7100A User Manual 1 9 Identification 1 2 9 Protection Electrical protection Thyristors 1 2 10 Mounting Mounting type 1 2 11 Environment Use Storage Pollution Humidity Over voltage IP20 without adding additional protection Varistor and RC snubber High speed fuse rating lt 100 A external see code rating gt 125 A internal No fuse for Short wave infrared elements in Burst mode and Single cycle firing or Phase angle without Current limit Attachment plate fixed to unit on symmetrical EN50022 DIN rail or bulkhead mounting for ratings 2 125 A bulkhead mounting only 0 to 45 C at nominal current max altitude 2000 m 10 C to 70 C Degree 2 acceptable defined by IEC 664 RH 5 to 95 non condensing non streaming Over voltage category Il as defined by IEC 664 7100A User Manual Identification 1 3 CODING Ratings Basic selection 7100A CODING 1 2 3
6. Power terminals load side Protective earth terminal Rating nominal current nominal voltage Auxiliary supply terminal block if specified Figure 1 1 General view of 7100A power thyristor unit 16A to 40A lite version 7100A User Manual Identification 1 1 2 7100A units from 16A to 63A full version and 63 A lite version E EUROTHERM 7100A EI 1 63A 500V 1 L1 3 L2 w 2 11 4 12 Mm I XL Q 060 UII Am O Figure 1 2 General view of 7100A power thyristor unit 16A to 63A full version and 63 A lite version 7100A User Manual Identification 1 1 3 7100A units from 80A to 100A full version Power terminals supply side Protective earth terminal VRR ZEN Rating f nominal current nominal voltage EUROTHERM 71004 1 L O MEAN 1 L1 3 12 ae User label Internal power wiring diagram V2CL VICL and 12 2 11 4 12 options Current calibration V2CL or VICL options Current limit om GRF option O 1um 2 ILIM serious alarms Y cnr DLF option CHK diagnostic alarm N Oo OL ser x DLF option ON VILIM ption Electronics E O Diagno
7. a whole number of half cycles for non firing and Important Advanced single cycle firing mode is only available for 4S or 6D three phase load configuration For duty ratios n lt 50 the thyristor firing time is set to one cycle non firing occurs for half cycles For duty ratios n gt 50 the non firing time is set to half a cycle firing occurs for whole cycles By using half cycles for non firing time the modulation time is reduced compared with standard Single cycle mode which is equivalent to burst mode with one cycle Advanced Single Cycle mode Code ASC reduces flicker on short wave infrared elements and is thus less annoying on the eyes Standard single cycle T or Tyr 1 cycle Advanced single cycle Typ 0 5 cycles Ty reduced 66 6 power p 66 6 power F 2 Tw mE Te 22 Typ yo 22 OT Tu Figure 3 4 Exemple of Single cycle and Advanced sigle cycle firing mode 3 4 7100A User Manual Firing modes 3 5 PHASE ANGLE Code PA In Phase angle mode the power delivered to the load is controlled by firing the transistors over a part of each supply half cycle Control involves varying the thyristor firing angle 0 It varies with the setpoint signal The load voltage v and current i depend on the three phase load configuration Supply Load voltage Supply Load voltage voltage lt 5 ta Current ds d ra Current a Resistive load b Inducti
8. 3 Control Limits 4 2 2 CURRENT AND POWER LIMITATION With the contol option VICL the following are available lim current calibration potentiometer VI lim power calibration potentiometer HRC calibration control signal on the ADJ CAL terminal block Recalibration is possible e current l from 20 to 100 of ly power P nax from 50 to 100 of Vy I The HRC setting control signal ADJ CAL terminal block can be used to aid setting with the I lim and VI lim potentiometers whether or not the thyristor unit is firing max Setting current and power limitation The value of the DC voltage between terminals HRC 67 and OVC 66 represents The image of the maximum current VI lim potentiometer fully turned in the direction of the arrow e The image of the maximum recalibrated power 1 V corresponds to 100 P The control signal is equal to 1 V if calibrations are nominal lha and P Py The minimum value of the signal is 0 1 V I 20 and VI lim set to 50 of Vy Ina Setting 1 Turn the VI lim potentiometer fully round in the direction of the arrow nominal power 2 Use the I lim potentiometer to set the I value 3 Use the VI lim potentiometer to set the P nax value Check the resulting power setting on the HRC signal accounting for I a Important The current limitation must be done b
9. 4 5 6 7 8 9 10 Ratings Basic selection 1 Nominal current 6 Firing mode Code PA 16 amps 25 amps 40 amps Advanced single cycle 1 base cycle 63 amps non firing by half cycles ASC 80 amps Burst mode 100 amps Single cycle 1 base cycle 125 amps base time 16 cycles 160 amps base time 64 cycles 200 amps 250 amps 2 Nominal voltage Code 100 volts Analogue signal 115 volts current from 0 mA to 20 mA 120 volts current from 4 mA to 20 mA 127 volts voltage from 0 V to 5V 200 volts voltage from 0 V to 10 V 208 volts 230 volts 240 volts French 277 volts English 400 volts German 415 volts 460 volts i peus 480 volts Base version No options 500 volts Standard V control End of code Phase angle 3 Power supply for electronics Version with options Self powered standard Selection of options YES External 115 V supply External 230 V supply 4 Fan power supply lt 200A No fan 250A 115 V fan and 115 V 230 V fan and 230 V 5 Thyristor fuse Fuse without fuse blown microswitch Fuse with fuse blown microswitch No fuse 7100A User Manual 1 11 Identification Options 12 13 14 15 16 17 18 19 20 11 Options Certification Options and Warranty extension 11 Control options Voltage control V2 v2 PA only Current control I 12 Open loop OL C16 and PA only 19 Certification option Vo
10. Pty Ltd Tel 61 2 9838 0099 Fax 61 2 9838 9288 Web www eurotherm com au BELGIUM Eurotherm BeLux Tel 32 0 85 274080 Fax 32 0 85 274081 Web www eurotherm nl BRAZIL Eurotherm Ltda Tel 55 19 3237 3413 Fax 55 19 3234 7050 Web www eurothermltda com br DENMARK Eurotherm AS Tel 45 70 234670 Fax 45 70 546253 Web www eurothermltda se GERMANY Eurotherm Regler GmbH Tel 49 64 31 2980 Fax 49 64 31 298119 Web www eurotherm deutschland de HONG KONG Eurotherm Limited Tel 85 2 2873 3826 Fax 85 2 2870 0148 Web www hongkong com FRANCE Eurotherm Automation SAS Tel 33 0 4 78 66 45 00 Fax 33 0 4 78 35 24 90 Web ww eurotherm tm fr INDIA Eurotherm India Limited Tel 91 44 24961129 Fax 91 44 24961831 IRELAND Eurotherm Ireland Limited Tel 353 0 1 4691800 Fax 353 0 1 4691300 Web ww eurotherm tm ie Manufactured by Eurotherm Automation Copyright Eurotherm Limited 2002 ITALY Eurotherm SRL Tel 39 031 975111 Fax 39 031 977512 Web www eurotherm it KOREA Eurotherm Korea Limited Tel 82 0 31 273 8507 Fax 82 0 31 273 8508 Web www eurotherm co kr LUXEMBURG Eurotherm NV Tel 32 0 85 274080 Fax 32 0 85 274081 Web www eurotherm nl NETHERLANDS Eurotherm B V Tel 31 172 411 752 Fax 31 172 417 260 Web www eurotherm nl NORWAY Eurotherm AS Tel 47 67 59 21 70 Fax 47 67 11 83 01 Web www
11. diagrams below sets and diagnoses the status of the PLF detection circuit 5 6 1 Setting request Y Press until DLF LED flashes Push button AR Setting LED DLF performed Setting LED DIF not performed Figure 5 3a PLF detection setting request 5 6 2 Diagnostic y Press until DLF LED lit Push butt CHK lt 3 ush button SET lt 3s t 0 Diagnostic LED pir active Diagnostic LED M9 DIE disabled LED O DIF PLF fault Alarm relay Alarm on Alarm off Alarm on Figure 5 3b PLF monitoring diagnosis 5 6 3 Disabling Y Press until DLF LED stops flashing CHK Push button e _ SET 28s t 0 Diagnostic LED O DIF disabled Figure 5 3c Disabling PLF monitoring Alarms 5 7 OVERLOAD ALARM ICO option The type 2 alarm Over current alarm monitors the maximum current value This alarm and option is known as ICO Intelligent Chop Off 5 7 1 Availability The ICO option is available in zero crossing firing modes Burst mode and Single cycle provided the DLF option is fitted The ICO option is not available for short wave infrared elements and transformers code SWIR or XFMR or in control with current limit code VICL or V2CL 5 7 2 Alarm conditions With the ICO option an Over load fault is detected if one of the following two conditions occurs the instantaneous current on one phases exceeds a threshold of 150 of the instantaneous rated cur
12. modes 3 Chapter 3 FIRING MODES 3 1 GENERAL AND FIRING MODE SIGNALLING 7300A power thyristor units can be controlled with one of the following thyristor firing types thyristor firing angle variation Phase angle code PA a series of supply voltage cycles with zero crossing firing Burst mode codes C16 C64 FC1 ASC Two indicators green ON and HEAT LEDs are included on the front panel in all versions either basic or with options The indicators correspond to the thyristor firing mode as shown in the table below LED labelling Signalling Power supply for electronics V OON Power supply fault flashing No reference Neutral flashing Thyristor firing request in Burst mode Single cycle and Ay OHEAT Advanced single cycle modes Reminder Advanced single cycle is only available with 4S and 6D three Ny Oueat phase load configuration Thyristor firing request in Phase angle mode Table 3 1 Firing modes and base LEDs on front panel During normal operation with zero crossing switching the HEAT LED flashes to match the thyristor firing periods In normal operation in Phase angle mode the HEAT LED varies in brightness depending on the firing angle with maximum brightness during full firing 3 2 BURST MODE codes C16 and C64 Burst mode firing is a proportional cycle which delivers a series of whole supply cycles to the load Thyristor f
13. used to connect the control signals analogue and logic the auxiliary or electronics supply alarm relay and acknowledgement contacts Examples of connecting the input signals external electronics supply and alarm and acknowledgement contacts are shown below The wires used should be stripped for a length of 6 to 7 mm 2 3 2 1 Control terminal blocks The control terminal blocks are plug in screw connectors The terminal blocks available depend on the power thyristor unit version and the selected options in the product code The terminals and numbers are marked on the front panel for available terminal blocks The table below gives details of all terminals and terminal blocks Terminal Terminal description Version Terminal Torque block name No Name Purpose capacity mm AWG Nm 0 V for analogue signals Base or for analogue signals Options Internal analogue 5 V supply A F 230 V aux fan supply except SELF 115 V aux fan supply Neutral or second phase DIG IN 0 V logic signal ICO option Acknowledgement 5 V internal logic Alarm relay Alarm contact NC contact Options Alarm relay Alarm contact NO contact Options 0 V calibration V x I Control Calibration control Fuse blown NC contact Microcontact 2125A Neutral or 2nd phase All units gt 125 A Table 2 3 Description of control terminal blocks 2 10 7100A User Manual Installation 2 3 2 2 Co
14. EN50022 DIN rails Mobile attachment hooks Catch to move mobile hooks downwards Lower attachment plate Figure 2 3 Attaching the 7100A power thyristor unit to DIN rails 80A and 100A rear view 2 2 4 2 BULKHEAD MOUNTING 226 210 0 5 For 2 M4 screws For 2 M4 screws Upper attachment plate Lower attachment plate Figure 2 4 Bulkhead mounting using an attachment plate 80A and 100A rear view 7100A User Manual 2 5 Installation 2 2 5 125A TO 250A UNITS MOUNTING BULKHEAD MOUNTING Ill mM E l ll u U 324 7 with fan 250 A units 275 without fan 354 7 with fan 250 A units 305 without fan Ha Nd 1 UA UUUUUIITUUUUU a n For2 M6 screws Figure 2 5 125A to 250A 7100 A unit mounting 2 6 7100A User Manual Installation 2 3 WIRING 2 3 1 POWER CONNECTIONS 7100A power thyristor units with current ratings up to 100 A are fitted with one channel controlled by thyristors an internal busbar for directly connecting the load to the power supply direct channel not controlled by thyristors The wiring diagram for this range of standar
15. amp the first burst mode firing cycle starts with the first firing delay Supply Voltage Load Voltage Load Voltage Won M y I I I I 1 gt ld I Magnetisation gradiant Delay for first firing Figure 3 7 Transformer primary power up in Burst mode XFMR option 3 6 7100A User Manual Control Limits Chapter 4 4 CONTROL AND LIMITS Contents Page 4 1 GONWOW 2 A ce RAD 4 2 4 131 ontrol parameters TEA ee A WA 4 2 4 1 2 Input Output ratio 9 ee eee ee ANA 4 2 4 2 Limitation adjustment options cee eee eee eee 4 3 4 2 1 Current recalibration options without power control 4 4 Setune M oco ue ren NIIS ore 4 4 Settings with ICO option uen RR 4 4 4 2 3 Current and power limitation 0 ee ee eee 4 5 4 3 Current and power specifications options 004 4 5 7100A User Manual 4 1 Control Limits 4 Chapter 4 CONTROL AND LIMITS 4 1 CONTROL 4 1 1 Control parameters 7100A power thyristor units use one of the following control parameters rms load voltage squared V rms load current squared P power delivered to load P Open Loop OL The parameters are defined and explained in the table below Definition Compensation of supply voltage variations Compensation of supply voltage variations with current limit Power control with current and powe
16. cabinets with a fan failure detection device or a thermal safety cut out The cabinet must be closed and connected to the protective earth according to IEC 60364 or applicable national standards Units must be mounted with the heatsink positioned vertically and with no obstructions above or below the unit which could reduce or hamper air flow If several units are fitted in the same cabinet arrange them such that air from one unit is not drawn in by the unit above Leave a gap of at least 10 mm between adjacent units Important Nominal currents correspond to use at ambient temperatures of no more than 45 C Overheating may cause incorrect operation and may even lead to components being damaged Danger It is the user s responsibility to wire and protect the facility according to best practice and applicable standards A suitable device ensuring that the unit can be electrically isolated from the supply must be installed upline to enable work to be performed safely Conductor cross sections should comply with IEC 60943 Only use copper cables and wires rated for use at 75 C Before connecting or disconnecting the unit check that power and control cables and leads are isolated from voltage sources The protective earth must be connected before any other connections are made and should be the last cable to be disconnected The protective earth connection terminal is marked with the symbol D Important To ensure tha
17. d contactors for non motor loads CE LABELLING 7100A products installed and used in accordance with the user manual bear CE labelling on the basis of compliance with the essential requirements of the European Low Voltage Directive 73 23 EEC dated 19 February 1973 modified by 93 68 EEC dated 22 July 1993 and the Electromagnetic Compatibility Directive 89 336 EEC dated 3 May 1989 modified by 92 31 EEC dated 28 April 1992 and 93 68 EEC dated 22 07 93 SAFETY The units have IP20 protection rating as defined by standard IEC 60529 External wiring must comply with standards IEC 60364 4 43 and IEC 60943 Copper cables and conductors must be used rated to a temperature of 75 C 167 F ELECTROMAGNETIC COMPATIBILITY EMC 7100A products installed and used in accordance with the user manual are designed for an industrial environment and must not be used in the home EMC TEST STANDARDS The units comply with the following EMC test standards in accordance with the AC semiconductor motor controllers and conductors for non motor loads standard EN 60947 4 3 Immunity EN 61000 4 2 EN 61000 4 3 EN 61000 4 4 EN 61000 4 5 EN 61000 4 6 EN 61000 4 11 Radiated emissions CISPR 11 mod 1990 Conducted emissions CISPR 11 mod 1990 Class A Group 2 near zero voltage switching EMC FILTER conducted emissions For facilities required to comply with the levels stipulated under the generic standard for conducted emissions EN 50081 2 Euro
18. d current ratings is shown in figure 2 6 The protective earth terminal PE marked with the earth symbol must be wired to the protective earth see section Safety during installation The 7100A units gt 100 A are equiped of One thyristor controlled channel The protective earth terminal PE marked with the earth symbol must be wired to the protective earth see section Safety during installation Use 75 C min copper wire only terminai T Stripping length Nm mm 2 5 to 6 6 to 16 16 to 35 Table 2 2a Power connection details for ratings from 16 A to 100 A Terminal capi barang Stripping length mm 16 4 or 5 z M10 nut 9 10 or 12 to attach eyelet and terminal Table 2 2b Power connection details for ratings from 125A to 250A Conductor cross sections should comply with IEC 60943 7100A User Manual 2 7 Installation 2 3 1 1 7100A units from 16A to 100A wiring diagram The power connection to 7100A units is between one phase and neutral or between two phases depending on the nominal voltage for the thyristor unit Supply protection and Ph N Ph2 cut out installed by user Direct channel terminal supply side Thyristor protection fuse Protective earth connection Controlled ami terminal supply side 7100A 100A 230V 3 12 1 2 T1 4 72 EUROTHERM Protective earth Internal power wiring terminal dia
19. efore adjusting the power limitation 4 4 7100A User Manual Control Limits 4 3 CURRENT AND POWER LIMIT SPECIFICATIONS The table below summarises the operation of the limits used in the 7100A series power thyristor units Control type Potentiometer Name Action Thyristor unit set threshold max current recalibration Operation of limit Current limit by threshold If the maximum of the three currents ly gt firing angle variation V2 control in Burst mode 16 max Thyristor unit set threshold max current recalibration Current limit by threshold If the maximum of the three currents ly gt firing angle variation P control in Burst mode 16 max Recalibration of power control loop set ratio between P and setpoint Power limit by control in Burst mode 16 taking P into account Thyristor unit set ratio between and setpoint current recalibration Current limit by transfer If the maximum of the 3 currents squared ly gt V automatic transfer to I control by firing angle variation Thyristor unit set ratio between and setpoint current recalibration Current limit by transfer If the maximum of the 3 currents squared ly gt V automatic transfer to 1 control by firing angle variation Recalibration of power control loop set ratio between P and setpoint Power limit by contr
20. ent see figure 2 10 Note The DLF alarm can also be reset with the CHK SET push button 2 3 2 6 Connecting the reference neutral voltage EXT Terminal For any units from 125 A to 250 A the neutral voltage of the supply network reference neutral must be applied to terminal 21 marked N EXT connector This connection must be protected by a 1 A fuse see figure 2 11 Loss of the reference neutral connection causes an alarm see Alarms section oe 5 E m m van To fuse blowncontact Neutral or Second Phase connection To the network Neutal Fuse 1A Figure 2 11 Connecting the supply neutral voltage 2 3 2 7 MSFU option fuse blown contact MSF Terminal For any units from 125 A to 250 A with the option MSFU a ontact is avalaible on the terminal MSF in order to indicate fuse blown 2 12 7100A User Manual Firing modes Chapter 3 FIRING MODES Contents Page 3 1 General and firing mode signalling cee eee eee eee 3 2 3 2 Burst mode codes C16 and C64 o eneee AE NDA eee 3 2 Firing delay XFMR option a 3 3 3 3 Singl amp amp ycleflcode FC1 mA aaa 3 4 3 4 Advanced single cycle code ASC an 3 4 3 5 Phase angle code PA NOW IA 3 5 3 6 Safety ramp BA aNG 3 6 3 6 1 Ramp on startup 2 ARN 3 6 3 6 2 Magnetisation ramp XFMR option aa 3 6 7100A User Manual 3 1 Firing
21. eration gt ON Heat LEDs Chapter 3 Adjust ICO calibrations and threshold z 7 Chapter 4 while firing at full rate I lim potewgemeter Page 5 7 Optimise firing delay for inductive load L DLY potentiometer Page 3 3 Adjust DLF alarm oo ae CHK SET push button Page 5 5 5 6 iv 7100A User Manual Identification Chapter 1 IDENTIFICATION OF POWER THYRISTOR UNITS Contents Page 1 1 General presentation o oo o ge ABAYA Oe 1 2 1 2 Technicalgpe ifieations ooooooommm Bco 1 7 1 2 1 a AA AA AA RR eae eee ee 1 7 RN ee 1 7 NS WIMENSIONS raro eere hne e p een 1 7 Ee Control isse PEN eai 1 8 1 2 5 Firing Modes a BB or e 1 8 1 2 6 Control SA cee gt 1 8 1 2 7 Signalling CEY co A Y 1 1 2 8 Alarms 15 oc ee NB A 1 9 1 2 8 1 Load Monitorin Alarms 000 cece eee ee eee 1 9 1 2 8 2 0Verlfoad Alarms 0 0c ye e II 1 9 1 2 969 Alarm Relay EAM So 1 9 1 2 9 AR eme RR 1 10 12 10 Mounting le Waaa AA 1 10 W291 Environment 2 22 00 RN a agi I MA 1 10 d Coding AAA Rn 1 11 7100A User Manual 1 1 Identification Chapter 1 IDENTIFICATION 1 1 GENERAL PRESENTATION 7100A series power thyristor units are used to control the electrical power of single phase industrial loads of alltypes The load controlled may may be high or low temperature coefficient resistive loads short wave infrared elements or transformer primaries Curre
22. eurotherm se SPAIN Eurotherm Espa a SA Tel 34 91 6616001 Fax 34 91 6619093 Web www eurotherm es SWEDEN Eurotherm AB Tel 46 40 384500 Fax 46 40 384545 WEB www eurotherm se SWITZERLAND Eurotherm Produkte AG Tel 41 55 4154400 Fax 41 55 4154415 Web www eurotherm ch UNITED KINGDOM Eurotherm Limited Tel 44 0 1903 268500 Fax 44 0 1903 265982 Web www eurotherm co uk U S A Eurotherm Controls Inc Tel 1 703 443 0000 Fax 1 703 669 1300 Web www eurotherm com All rights strictly reserved No part of this document may be stored in a retrieval system or any form or by any means without prior written permission from Eurotherm Limited Every effort has been taken to ensure the accuracy of this specification However in order to maintain our technological lead we are continuously improving our products which could without notice result in amendments or omissions to this specification HA176499ENG 7100A User Manual Part No HA 176499 ENG
23. gram Control terminal references Signal input terminal block N Direct channel terminal load side L Controlled channel terminal load side Figure 2 6 7100A power thyristor unit power and input signal connections rating lt 100 A no options self powered electronics 2 8 7100A User Manual Installation 2 3 1 2 7100A units from 125A to 250A wiring diagram The power connection to 7100A units is between one phase and neutral or between two phases depending on the nominal voltage for the thyristor unit Protective Earth terminal L1 L2 N Supply protection and cut out Istalled by user Controlled channle n terminal supply side Internal fuse comprtment thyristor protection p qp E EUROTHERM 7100A 160 A 500 V 1 11 PE EXT block terminal 2 11 Connection L2 or N 75 fuse blown Y SQN NC Contact n OHEAT EN 60947 4 3 output units gt 125A ll Fuse 1A MSFU code oo 000 o oo Controlled Channel termial Load side pa Fuse 1A Load Figure 2 7 7100A power thyristor unit power and input signal connections rating 5 100 A self powered electronics 7100A User Manual 2 9 Installation 2 3 2 CONTROL CONNECTIONS Terminal blocks on the underside of the 7100A power thyristor unit are
24. he delay before thyristor firing starts may be adjusted he Ha gt With the DLY potentiometer available with the XFMR 0 90 option C16 or C64 Burst mode Figure 3 3 First firing delay adjustment potentiometer XMFR option The DLY potentiometer is a 3 4 turn type and is used to set the delay angle for the first firing from 0 turned anticlockwise to end stop to 90 turned clockwise to end stop The factory setting for the first firing delay with the XMFR option is 70 typical value suitable for starting most applications The optimum firing angle can be adjusted with the DLY potentiometer to match the cos of the load to obtain a minimal transient over current using an oscilloscope 7100A User Manual 3 3 Firing modes 3 3 SINGLE CYCLE code FC1 Burst mode firing with a single firing or non firing cycle is known as Single cycle For example with a setpoint of 50 corresponding to a duty ratio n 50 the modulation comprises 1 firing cycle and 1 non firing cycle For duty ratios n lt 50 the firing time remains unchanged 1 cycle and the non firing time increases For duty ratios n gt 50 the non firing time remains unchanged 1 cycle and the firing time increases 3 4 ADVANCED SINGLE CYCLE code ASC In order to reduce power fluctuations during firing time Advanced single cycle thyristor firing mode uses a whole number of cycles for firing and
25. ids the product guarantee 6 4 7100A User Manual Notes 7100A User Manual 71 7 2 7100A User Manual EUROTHERM For over thirty years Eurotherm Limited have been providing an unparalleled level of service and expertise to customers in the control of Processes and Power From requirement assessment through to equipment specification and plant commissioning Eurotherm Limited is able to offer expertise and equipment in the following areas Input conditioning Process and Temperature Indicators Single Loop Process and Temperature Controllers with Programming facilities Programmable Multi loop Process Controllers Solid State Contactors Power Controllers Paper and Paperless Data Recorders Data Acquisition and Management Instrumentation Supervisory Systems SCADA Process Automation Systems Eurotherm Limited is part of the Production Management Division of Invensys plc one of the world s leading automation and controls companies Eurotherm manufactures at a number of locations in Europe and the USA and is a major supplier to the world s processing and manufacturing industries The company is ISO9000 approved and operates TickIT protocols for software management Please contact your local Sales Office 7 4 7100A User Manual EUROTHERM WORLDWIDE SALES AND SERVICE AUSTRIA Eurotherm GmbH Tel 43 1 798 7601 Fax 43 1 798 7605 Web www eurotherm at AUSTRALIA Eurotherm
26. ightened see Wiring section page 2 7 f the load parameters change the operation of the PLF detection must be diagnosed see DLF option section If a DLF alarm occurs check the load wiring and condition of contacts Use the push button to confirm the DLF alarm diagnosis see page 5 6 To ensure that the unit is cooled correctly the heatsink should be cleaned regularly depending on how dirty the environment is as should the fan protection grille for fan cooled units rated at 250A Danger The thyristor unit should be cleaned only when powered down at least 15 minutes after stopping operation 6 2 7100A User Manual Maintenance 6 3 Thyristor protection fuses The thyristors in the 7100A power thyristor unit are protected against excess currents by a high speed fuse for all load types other than short wave infrared elements For current ratings lt 100 A the fuse is external Important To use high speed fuses with short wave infrared elements please contact your Eurotherm office Danger High speed fuses do not provide protection for the installation Upline protection must be fitted non high speed fuses circuit breakers cut outs The product code specifies whether or not a fuse is present With the FUSE or MSFU micro switch fuse codes a fuse and fuse holder assembly corresponding to the current rating is supplied with the product for code FUSE the fuse is not fitted with a
27. iring and cut off is synchronised with the supply and occurs at zero crossing Thyristor firing in Burst mode can be described by n E the firing time T non firing time Typ and modulation time Ty Load Voltage where Ty T Typ and the Base Cycle Time is equal to the number of cycles firing at 50 of the duty ratio or 50 of the power supplied to the load T STA ur The Base Cycle time is equal to 16 cycles for code Figure 3 1 Thyristor firing for one of the C16 and 64 cycles for code C64 phases in Burst mode 3 2 7100A User Manual Firing modes FIRING DELAY XFMR option In Burst mode firing with pure resistive loads the thyristors are fired at zero voltage crossing to avoid sharp current rises For an inductive load e g transformer primary switching the thyristors at zero crossing generates transient over currents see figure 3 2a This transient could cause the high speed thyristor protection fuse to blow in certain cases a Transient b Without Transient Over Current iload Vload Vload Pi iload CLA Delay Angle 0 a 90 Figure 3 2 Typical switching with inductive load at zero crossing a and with delay b To avoid the over current the first thyristor firing must Delay Angle 70 be delayed relative to the corresponding zero for each Setting DLY phase ca E po Se T
28. lim The new current value can be recalibrated between 20 and 100 of Iy A tae CurrentUl Flashing KI LIM IuM AS calibrati current limit active a o ren potentiometer Current setting 1 Turn the I lim potentiometer fully round in the opposite direction to the arrow Imax 20 of Iy 2 Set the thyristor unit firing with 100 setpoint 3 Measure the current value and use the I lim potentiometer to set the desired value of I new max thyristor unit rating Current setting with ICO option In Burst mode with the ICO option the I lim potentiometer is used to set the over load alarm see page 5 8 Over load detection is signalled by flashing the red ICO LED To adjust the setting 1 Turn the I lim potentiometer fully round in the direction of the arrow I 2 Set the thyristor unit firing with 100 setpoint 3 Rotate the I lim potentiometer one turn at a time at 5 second intervals in the opposite direction to the arrow until the ICO indicator starts flashing 4 Rotate the potentiometer in the direction of the arrow by approx 2 turns and acknowledge the alarm settings calibration for the nominal load current used 100 of 1 max Important If spurious alarms occur rotate the I lim potentiometer in the direction of the arrow one turn at a time until the alarms cease 7100A User Manual 4
29. ltage control V2 and No certificate of Current limit Compliance with Order Power control V x I and Certificate of Compliance with Order Current limit 17 XXXX 18 XXXX 20 Warranty extension 12 Delay on first firing Code Without warranty extension Burst firing C16 or C64 Warranty extended to 5 years Transformer primary Other configurations 13 Load Monitoring alarms Serious Alarms Thyristor short circuit Total Load failure over temperature for rating 250 A Partial load failure and Serious alarms No alarms 14 Load type With DLF option Short wave infrared Low temperature coefficient load Without DLF option or High temperature coefficient load 15 OverLoad alarm with DLF option and burst firing Overload alarm except codes SWIR XFMR VICL and V2CL No over current alarm 16 Alarm relay contact Code With alarm option Contact closed on alarm Contact open on alarm Without alarm option 1 12 7100A User Manual Installation Chapter 2 INSTALLATION Contents Page 23h Safety during installation CARAT 2 2 2 2 Types of mounting a NBP cc ce ces 2 3 2 2 1 AttacHimeht plate ooooooooo NM ee n 2 3 2 2 2 Mounting Detaching on DIN rails oo 2 3 2 2 3 16 A to 63 A units mounting 0 0 02 eae 2 4 23 1 DIN rails mounting WA o ccoo oo 2 4 2 2 3 2 Bulkhead m
30. mensions and safety recommendations bring the unit up against the rail engaging the two fixed hooks push the unit against the rail clip the unit onto the rail using the mobile hooks ensuring that they are properly engaged To detach the unit move the mobile hooks downwards by pulling on the catch unclip the unit from the rail 7100A User Manual 2 8 Installation 2 2 3 16A TO 63A UNITS MOUNTING 2 2 3 1 DIN RAIL MOUNTING ee dE Attachment plate Attachment hooks EN50022 DIN rail Mobile attachment hooks 164 gt Catch to move mobile hooks downwards 82 Figure 2 1 Attaching the 7100A power thyristor unit to a DIN rail 16A to 63A rear view 2 2 3 2 BULKHEAD MOUNTING I For M4 screw lm Attachment plate IS V in o S wo wn l For M4 screw l a Y mu Fr o Figure 2 2 Bulkhead mounting using an attachment plate 16A to 63A rear view 2 4 7100A User Manual Installation 2 2 4 80A TO 100A UNITS MOUNTING 2 2 4 1 DIN RAIL MOUNTING 226 Upper attachment plate Attachment hooks
31. nt ratings vary from 16 A to 250 A see coding at voltages of 100 V to 500 V 7100A series power thyristor units rating up to 100 A comprise two channels one controlled by thyristors and one direct internal channel 7100A units above 125 A only comprise a single controlled channel Lite version Units without options One Alarm option GRF or DLF or one Control option V2CL or 12 These configurations can be combined depending on the case with the open loop code OL or the transformer primary code XFMR The Power Control option VICL is not available on the lite version Full version units lt 100 A Power Control option VICL only or combined with other options e Alarm option GRF or DLF combined with Control option V2CL I2 or VICL Overload option ICO Warning The Full Version is only available up to 100 A maximum 1 2 7100A User Manual Identification 1 1 1 7100A unit from 16A to 40A lite version User label Internal wiring diagram Electronics power supply NI Firing request 7 Burst mode or single cycle Control Power terminals supply side y EUROTHERM 7100A o 16A 500V 1 11 Pe Y Ly jm 4 12 Y Dow N One terminal references Auxiliary supply terminal references if specified J8 N Control terminal block
32. ntrol signal ANA Terminal The analogue control signal terminal block is labelled ANA The input available corresponds to the input type selected in the product code voltage or current and level of values The signal must be connected between terminals 32 and 31 A typical external signal connection is shown on figure 2 8a Figure 2 8b shows how to use the internal 5 V voltage terminal 33 labelled 5VA for manual control with an external 10 kQ potentiometer Important The control signal input is polarised The of the control signal must be connected to terminal 32 labelled RI For input code 0V5 only Control signal connector b 10k potentiometer Analogue control signal Internal 5 V analogue signals Figure 2 8 Control signal connection self powered unit without alarms a external signal e g from Eurotherm series 2000 controller b manual command from external potentiometer 2 3 2 3 Power supply for electronics and fan option A F Terminal The power supply for the electronics auxiliary supply may be either internal self powered code SELF or e external 115 V or 230 V depending on the product code Only one terminal 16 for 230 V or 17 for 115 V is available depending on the product code Terminal 18 marked N must be connected to the neutral of the external supply or to the second phase if the supply is taken between 2 phases The exte
33. o the ACK terminal on the DIG IN terminal block logic signal inputs The internal supply 5VD terminal or an external source may be used to acknowledge the alarm remotelv see figure 2 12 Alarms Maintenance Chapter 6 MAINTENANCE Contents Page 6 155afety during maintenance BBS ee A e 6 2 6 2 Maintenance gh na aan A ET lss 6 2 6 3 Thyristor pp rectiSpfTuses a a esee en nen 6 2 7100A User Manual 6 1 Maintenance Chapter 6 MAINTENANCE 6 1 SAFETY DURING MAINTENANCE Please read carefully before commissioning the thyristor unit Important Eurotherm shall not be held responsible for any damage injury losses or expenses caused by inappropriate use of the product or failure to comply with this manual Accordingly the user is responsible for checking before commissioning the unit that all the nominal characteristics correspond to the conditions under which it is to be installed and used Danger The product must be commissioned and maintained by qualified personnel authorised to work in an industrial low voltage environment AN Users must not attempt to access internal parts The heatsink temperature may exceed 100 C The heatsink remains hot for approx 15 minutes after the unit is shut down Avoid touching the heatsink even briefly while the unit is operating 6 2 MAINTENANCE Every six months check that the power and protective earth cables are correctly t
34. of the nominal voltage and rms load current greater than 5 of the rated current Total Load Failure TLF monitoring is only possible under the following conditions no over temperature or thyristor short circuit faults the rms voltage across load is greater than 40 of the nominal voltage 5 3 3 Partial Load Failure Detection Sensitivity Partial Load Failure Detection Sensitivity can be expressed in terms of a maximum number of load elements connected in parallel for which the unit can detect the failure of one element The DLF sensitivity guaranted for 1 element out of 6 5 4 Load type matching PLF detection is adapted to the load type The type of load controlled is selected when ordering with the product code LTCL Low Temperature Coefficient Load or SWIR Short Wave InfraRed elements 5 5 Disabling alarms for load failure signalling PLF fault signalling DLF indicator and relay can be temporarily excluded from alarms by pressing the CHK SET Check Setting push button If the fault persists DLF signalling returns to the alarm position If the ICO option is used PLF and TLF faults can be excluded from alarms using the external acknowledgement logic input see Type 2 alarm Alarms 5 6 Functions of DLF alarm push button The push button on the front panel of the unit with the DLF option is labelled CHK SET Checking Setting Pushing this push button as shown on the
35. ol variation of firing angle new ratio between P and setpoint Thyristor unit set ratio between and setpoint Table 4 2 Operation of current and power limits current recalibration 12 Control Reminder Recalibration sets the unit s new nominal current rating l 7100A User Manual 4 5 Control Limits 4 6 7100A User Manual Alarms Chapter 5 ALARMS Contents Page Alarm diagnostic summary o 5 2 5 1 Safety mechanisms a 5 3 5 2 Alanmistrategy A Wc cece ee ene es ae es 5 3 512 1 Firing Cut off We 0 6 ce oo A 5 3 5 2 2 Alarm prioritys 0 ee ce cee ANS eese 5 3 5 2 3 Memonfsation oooooooo DN wee 5 3 5 3 Load MonitoMing eeu eee 5 4 5 3 1 Setting the DLF alarm 2 22 5 5 5X2 PLE or TLF detection Ms oo oooooo o 5 5 5 3 3 PLF detection sensitivity suus 5 5 5 4 Load type matching aM occ o at Y 5 5 5 5 Disabling alarms for load failure signalling 5 5 5 6 Functions of DLF alarm push button 5 6 5 6 1 S ling Request A Wiesner 5 6 5 6 Diagnostic lees n Wii 5 6 5 8 399Disabling q ANE ee he Me 5 6 5 7 Over Load Alarm ED W 222222222 OEA 5 7 5 7 1 Availability K ccs WM 5 7 5 7 2 Alarm conditions Ra a 5 7 5 7 3 Alarm Actions Memorisation Acknowledgement 5 7 Alarms
36. ounting 0 cece eee 2 4 2 2 4 80 A to 100 A units mounting 0 0 0 ee 2 5 2 2 4 1 DIN rails mowhin 222 ee EA gt 2 5 2 2 4 2 Bulkhead MounmSg o utm 2 5 2 2 5 125 A to 250 A units mounting lesse 2 6 23 WEINE se AA eae PP 2 7 2 3 1 Power connections e AS eee 2 7 2 3 1 1 7100 A units from 16 A to 100 A wiring diagram 2 8 2 3 1 2 7100 A units from 125 A to 250 A wiring diagram 2 9 Za Control connections ER a E 2 10 2 3 2 1 Control terminal blocks L 4 2 10 2 3 2 2 Control signale WIM be MA sss 2 11 2 3 2 3 Power supply for electronics 2 12 2 3 2 4 Alarm relay contact QUA Y 2 11 2 3 2 5 Acknowledgement signal lusus 2 12 2 3 2 6 Connecting the reference neutrral voltage 2 12 2 3 2 7 MSFU option fuse blown contact 2 12 7100A User Manual 2 1 Installation Chapter 2 installation 2 1 SAFETY DURING INSTALLATION MOUNTING AND WIRING AN gt Danger 7100A power thyristor units must be installed and wired by qualified staff authorised to work on low voltage industrial electrical facilities Units must be installed in a fan cooled cabinet to ensure that condensation and pollution are excluded with a class of at least 2 according to IEC 664 We recommend fitting fan cooled
37. ped reaction orange time Partial Load Failure Flashing PLF ON 5sto13s Total Load Failure Flashing or TLF Flashing Thyristor Short Circuit OFF THSC Over temperature T OFF Table 5 1 LEDs for serious alarms or faults with GRF and or DLF options Note Thermal faults are signalled by the T LED if one of the alarm options or one of the control options except V2 and OL is fitted The unit is protected against thermal faults whether or not they are signalled Thermal faults are signalled by the alarm relay if one of the alarm options is fitted Alarms 5 3 1 Setting the DLF alarm This can be set using the push button on the front panel The PLF detection setting can only be adjusted reference impedance recalculated in the following conditions rms voltage across load is greater than 40 of the nominal voltage rms current is greater than 30 of the rated current no over temperature or thyristor short circuit faults in order to guarantee the full scale sensitivity settings must be done at the load s nominal temperature Note PLF settings stay memorised even if a supply cut out occured The new setting must be achieved after a current calibration 5 3 2 Partial or Total Load Failure Detection PLF detection is only possible under the following conditions no over temperature or thyristor short circuit faults rms voltage across the load greater than 40
38. r limits Current squarred control Only available with Phase Angle Mode code PA Open loop no control The output is the image of the setpoint Only available with Phase Angle Mode code PA Tableau 4 1 Control parameter use For the Base version with no options the standard control parameter is V The control parameter must be selected when ordering and forms part of the product code 4 1 2 INPUT OUTPUT RATIO The value of the control parameter is proportional to the analogue setpoint signal between 4 and 96 of the scale see figure 4 1 Control parameter 100 100 75 50 Figure 4 1 Ratio between control system input and output The ratio between the setpoint and the control parameter V or P is linear Four types of input signal are available in the thyristor unit product codes 0 20 mA or 4 20 mA 0 5 V or 0 10 V 4 2 7100A User Manual Control Limits 4 2 LIMITATIONS ADJUSTEMENT options The thyristor units are factory calibrated to their nominal value I and P Vy ly The limits can be adjusted by adjusting the values with the I lim multi turn and VI lim 3 4 turn potentiometers on the front panel 4 2 1 CURRENT LIMITATION options without V I control The lim potentiometer enables to limit the load current to a chosen value The active state of the current limitation is indicated by a green flashing LED I
39. rent 1 5 V2 Tax the rms load current over 5 consecutive seconds on the phase exceeds a threshold of 110 of the recalibrated rms current 1 1 I ay The instantaneous or rms current threshold can be adjusted with the I lim potentiometer during the current calibration phase from 20 to 100 of the nominal current for the thyristor unit 5 7 3 Alarm Actions Memorisation Acknowledgement If an over current alarm is triggered thyristor firing stops at the end of the half cycle when the instantaneous current threshold is exceeded after approx 5 s of continuously exceeding the rms current threshold Over current alarm cut off is signalled as follows the position of the Alarm relay contact changes the ICO LED flashes and turns red Important The ICO LED starts flashing as soon as the rms current exceeds the threshold i e 5 s before firing may be cut off Setting the Over current alarm threshold in operating conditions is described on page 4 4 Alarm threshold simultaneous adjustment potentiometer for rms current 1 and instantaneous current Red LED 0 Over current fault Figure 5 4 Layout of the ICO LED and I lim potentiometer with the ICO option The over current alarm cut off is memorised The thyristor unit remains cut off and signals the alarm status The Over current alarm may be acknowledged by applying 5 V t
40. rnal supply must be in phase with or the opposite phase the line connection Note This terminal block is also used for the fan power supply for 250 A units Non standard supply or 500 V 1A fuses Control terminal references connector except self powered Figure 2 9 Typical 230 V auxiliary power supply connection 7100A User Manual 2 11 Installation 2 3 2 4 Alarm relay contact alarm option DIG IN Terminal If one of the alarm options is fitted a relay contact is available on the ALARM terminal block between terminals 71 and 72 or 73 and 74 see figure 2 10 The type of contact closed or open on alarm is determined by the product code Contact switching capacity 0 25 A maximum 250 Vac or 30 Vdc External user supply for alarm acknowledgement Alarm acknowledgement connector 1 J Acknowledgement by 0v contact or push button 5V Par Alarm relay O O contact i q m Ss Figure 2 10 Typical alarm relay contact and external acknowledgement connections 2 3 2 5 Acknowledgement signal ICO option With the ICO option OverLoad and Partial or Total load failure alarms may be acknowledged with a 5 V signal by connecting a contact between terminal 63 5VD internal and an ACK logic input terminal 62 available on the DIG IN terminal block An external 5 V supply may be used for this acknowledgem
41. rst firing set by potentiometer on front panel For all loads in Phase Angle firing Safety ramp with each change of setpoint 1 2 7 Signalling Electronics supply present green ON LED Thyristor firing request green HEAT LED 1 8 7100A User Manual Identification 1 2 8 ALARMS Options 1 2 8 1 Load Monitoring alarms Options Serious alarms Total load failure and thyristor short circuit detection GRF option Signalling Red GRF LED and alarm relay contact Diagnostic alarm Partial load failure detection DLF option Signalling Orange GRF LED and alarm relay contact Settings Monitoring diagnosis alarm adjustment and resetting using push button on front panel Sensitivity Detects the failure of at least one heating element for six identical elements connected in parallel Extension The DLF option includes the GRF serious alarm monitoring Over temperature alarm For fan cooled units 250 A the unit cuts out if the temperature threshold is exceeded Signalling Red T LED if one of the I2 VI or CL alarms or regulation options is selected Alarm relay contact with any one alarm 1 2 8 2 Overload alarms Option Overload alarm Cut out if current threshold exceeded ICO Option Only available for Burst Firing C16 or C64 with DLF option not available with Short wave infrared elements transformers and codes VICL and V2CL Two alarm thresholds instantaneous current and rms current
42. stic alarm power supply Nr QuEAT push button FY kaka Firing request SER RER VICL option Phase Angle lt Power calibration IIA 7 E kag UN 00 o0 Control terminal references 000 000 O Control connectors Power terminals load side Figure 1 3 General view of 7100A power thyristor unit 80A to 100A full version 7100A User Manual Identification 1 1 4 7100A units from 125A to 250A lite version only Power Terminal fon n f Protective Earth Supply side Ill Terminal gt Una E ann Not Internal Fuse used Compartment U U UU Im Ia M NEM Nm f E EUROTHERM 7100A UU Internal Wiring n 250 A 500 V Internal fuse for ae GG 09 125 to 250 A units Over Temperature 2 11 Alarm 250 A only CA y or Y OGRF Onr Ser Y OoN n QHEAT EN 60947 4 3 L E IN Control Terminals Fan Power supa 4 250 A only Power Terminal Fan Load Side 250 A only
43. striker bar for code MSFU the fuse has a striker bar and the fuse holder is fitted with a blown fuse microswitch If the user does not order a thyristor protection fuse or if a short wave infrared load is used no fuse is supplied code NONE 7100A User Manual 6 3 Maintenance Fuse reference CH260034 CH260034 CH330054 C5173087U080 CS173087U100 C5173246U125 CS176762U160 CS176762U315 CS176762U315 CS176762U315 Fuse reference with striker bar CS176513U032 CS176513U032 CS176513U050 CS176461U080 CS176461U100 CS173246U125 CS176762U160 CS176762U315 CS176762U315 CS176762U315 Fuse and fuse holder assembly Reference FU1038 16A FU1038 25A FU1451 40A FU2258 63A FU2258 80A FU2760 100A FU7100 125A FU7100 160A FU7100 200A FU7100 250A Dimensions mm Internal FUSE Table 6 1 Fuses without microswitch recommended for ratings 16 A to 250 A code FUSE Fuse and fuse holder assembly with microswitch Reference MSFU1451 16A MSFU1451 25A MSFU1451 40A MSFU2258 63A MSFU2258 80A MSFU2760 100A MSFU7100 125A MSFU7100 160A MSFU7100 200A MSFU7100 250A Dimensions mm H x W xD 110 x 110 x 110 x 127 5 x 127 5 x 240 x Internal FUSE Table 6 2 Fuses with microswitch recommended for ratings 16 A to 250 A code MSFU Important For all loads other than short wave infrared elements using a thyristor protection fuse other than the recommended fuse vo
44. t 7100A power thyristor units comply with Electromagnetic Compatibility requirements ensure that the panel or DIN rail to which they are attached is correctly grounded The ground connection designed to ensure ground continuity is not in any way a substitute for the protective earth connection 2 2 7100A User Manual Installation 2 2 TYPES OF MOUNTING Two types of mounting are possible DIN rail mounting or bulkhead mounting with screws Current rating 16 A to 63 A DIN rail mounting Bulkhead mounting Attachment plate One vertical plate DIN rail One EN50022 symmetric rail Attachment plate One vertical plate Screws 80 A and 100 A Two horizontal plates Two EN50022 symmetric rail Two horizontal plates 2125A Not applicable Two horizontal plates Table 2 1 Attachment details for both mounting types 2 2 1 ATTACHMENT PLATE The attachment plate shipped fitted to the rear of the 7100A power thyristor unit is used to clip the unit to a DIN rail or to screw the unit to a bulkhead The attachment plate has attachment holes for bulkhead mounting and two fixed hooks and two mobile hooks for clipping to a DIN rail the mobile hooks are moved using a catch and spring 2 2 2 MOUNTING DETACHING UNITS IN DIN RAILS fix one symmetric DIN rail rating 16 A to 63 A or two rails rating 80 A and 100 A in accordance with the unit di
45. therm can provide optional filters on units up to 100 A external filters for thyristor firing angle variation units EMC GUIDE To help you deal with installation dependent electromagnetic interference effects Eurotherm provides an Electromagnetic compatibility installation guide ref HA 025464 which sets out best current practice regarding EMC DECLARATION OF COMPLIANCE An EC declaration of compliance is available on request 7100A User Manual iii Flowchart COMMISSIONING FLOWCHART ve _ Characteristics correspond Check characteristics A to product code gt Chapter 1 Supply protection Wiring protective earth Chapter 2 power control Auxiliary power supply If external supply E for electronics or fan Kage cd Y Control and limit in I2 V2CL control Calibrate minimum current Ilim potentiometer Chapter 4 Page 5 7 ICO option over current alarm Calibrate maximum current Power control VI Tim VIlim potentiometers Calibrate Imax and Pmax while not firing Control signal Chapter 4 for given load HRC terminal i ANA terminal block Pages Apply control signal r 2 10 2 11 Power up Chapter 3 Check firing y Chapter 5 Alarms signalled GRE DLE ICO LEDs Normal op
46. ve load Figure 3 5 Voltage and current in Phase angle mode a resistive load b inductive load 7100A User Manual 3 5 Firing modes 3 6 SAFETY RAMP The safety ramp involves progressively increasing the thyristor firing angle in order to apply the voltage and current to the load smoothly and thus reduce the start up current of loads which have a low resistance when cold and inductive loads Phase angle mode allows the firing angle to be progressively varied on start up acting as a safety ramp 3 6 1 Start up ramp The start up ramp is active in the following firing modes Phase angle codes V2CL and VICL PA e 16 cycle Burst mode with current limit codes C16 V2CL or VICL The start up ramp approx 16 cycles is applied on the first firing after the thyristor unit is powered up and after the firing is cut for more than 5 seconds The initial firing angle is approx 6 After the ramp the firing angle corresponds to the setpoint in Phase angle mode in Burst mode the thyristors fire fully once the ramp is complete Supply voltage Current voltage Initial firing angle Figure 3 6 Start up ramp resistive loads 3 6 2 Magnetisation ramp XFMR option For inductive loads the safety ramp prepares initial magnetisation To avoid saturating transformers on power up the safety ramp acts as a magnetisation ramp With the XFMR option after this r
47. xternal power supply 115 V or 230 V 10 15 Consumption 10 VA Control type Analogue digital communication with option either remote analogue setpoint 0 5 V or 0 10 V 100 kQ input 0 20 mA or 4 20 mA 250 Q input or manual setpoint potentiometer 5 V supply available for use with 10 kQ potentiometer 1 2 5 Firing modes Zero crossing firing Burst mode base time 16 or 64 cycles Single cycle 1 base cycle Advanced single cycle 1 base cycle firing by whole cycles non firing by half cycles Firing angle variation Phase angle 1 2 6 Control Control parameter Standard Load voltage squared V Option Apparent power V I VICL option up to 100 A only Load current squared I2 option in Phase angle Open loop in Phase angle Linearity and Stability Better than 2 of full scale Current limit Option depending on firing mode V2CL option Phase angle Automatic control transfer P or V lt gt P Current recalibration set by potentiometer on front panel Burst mode 16 cycle base Current limit with fixed threshold set by potentiometer on front panel Calibration A control signal is available in V I control for power and current calibration and for maintenance Transient current limit Option to control transformer primaries XFMR option in Burst mode Transformer magnetisation firing angle ramp on first firing and after firing is stopped for 5 seconds or more Delay on fi
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