7100A ADVANCED CONTROLLERS SINGLE-PHASE
Contents
1. Figure 3 5 Voltage and current in Phase angle mode a resistive load b inductive load 7100A User Manual 35 Firing modes 3 6 SAFETY RAMP The safety ramp involves progressively increasing the thyristor firing anglein 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 angleto 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 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 firingis cut for more than 5 seconds The initial firing angle is approx 6 After theramp thefiring 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 XF MR option after thi2. 36 7100A User Manual 31 Firing 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 ethyristor firing angle variation Phase angle code PA ea 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 re Power supply fault flashing No reference Neutral flashing Thyristor firing request in Burst mode Single cycle and Ay OMEAT Advanced single cycle modes Reminder Advanced single cycle is only available with 4S and 6D three phase load configuration Ny OHEAT 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 nor mal operation in Phase angle mode the HEAT LED varies in brightness depending on thefiring angle with maximum brightness during full firing 3 2 BURST MODE codes C16 and C64 Burst mode firi ng is a proportional cycle which delivers a ser
3. L2 N Supply protection and cut out Istalled by user Controlled channle terminal supply side Internal fuse comprtment thyristor protection EJEUROTHERM 7100A 160 A 500V 1 L1 PE EXT block terminal Connection L2 on N in the case of GRF or DLF option er CUBES ET Fa falas aja i EN 60947 4 3 Controlled Channel termianl Load side Contact fusion internal fuse MSFU Figure 2 7 7100A power thyristor unit power and input signal connections rating gt 100 A self powered electronics 7100A User Manual 29 Installation 2 3 2 CONTROL CONNECTIONS Terminal blocks on the underside of the 7100A power thyristor unit are used to connect the control signals analogue and logic the auxiliary or electronics supply alarm relay and acknowledgement contacts Examples of connecting the input si gnals external electronics supply and alarm and acknowledgement contacts are shown below The wires used should be stripped for a length of 6to 7 mm 2 3 2 1 Control terminal blocks Thecontrol terminal blocks are plug in screw connectors Theterminal blocks available depend on the power thyristor unit version and the selected options in the product code Theterminals and numbers are marked on the front panel for available terminal blocks The table below gives deta
4. Mobile attachment hooks Catch to move mobile hooks downwards Figure 2 1 Attaching the 7100A power thyristor unit to a DIN rail 16A to 63A rear view 2 2 3 2 BULKHEAD MOUNTING For M4 screw Ge Attachment plate 164 156 0 5 For M4 screw y IPO Figure 2 2 Bulkhead mounting using an attachment plate 16A to 63A rear view 24 7100A User Manual Installation 2 2 4 80A TO 100A UNITS MOUNTING 2 2 4 1 DIN RAIL MOUNTING 220 125 HT Upper attachment plate Attachment hooks 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 220 For 2 M4 screws 210 0 5 For 2 M4 screws kb 8040 5 plate plate la Upper attachment Lower attachment Figure 2 4 Bulkhead mounting using an attachment plate
5. 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 HA176499ENG Issue 2 0 11 2005 Contents CONTENTS European directives and applicable standards Commissioning flowchart Chapter 1 Identification of power thyristor units Chapter2 Installation Chapter 3 Firing modes Chapter 4 Control and limits Chapter 5 Alarms Chapter 6 Maintenance Eurotherm BARO aes PURPOSE OF MANUAL This is the Issue 2 0 User Manual It describes the Basic Version and all options for 7100A series power thyristor units with current ratings from 16A to 250A 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 and 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
6. Attachment plate One vertical plate DIN rail One EN 50022 symmetric rail Attachment plate One vertical plate Screws 80A and 100A Two horizontal plates Two EN 50022 symmetric rail Two horizontal plates 2 125A Not applicable Two horizontal plates Table 2 1 Attachment details for both mounting types 2 2 1 ATTACHMENT PLATE The attachment plate shi pped fitted to the rear of the 7100A power thyristor unit is used eto clip the unit toa DIN rail or to screw the unit to a bulkhead The attachment plate has e 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 16A to 63A or two rails rating 80A and 100A in accordance with the unit dimensions and safety recommendations ebring the unit up against the rail engaging the two fixed hooks push the unit against the rail eclip the unit onto the rail usi ng the mobile hooks ensuring that they are properly engaged To detach the unit e move the mobile hooks downwards by pulling on the catch eunclip the unit from the rail 7100A User Manual 23 Installation 2 2 3 16A TO 63A UNITS MOUNTING 2 2 3 1 DIN RAIL MOUNTING Attachment plate Attachment hooks EN50022 DIN rail
7. 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 elt 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 sol ated from the supply must be installed upline to enable work to be perfor med safel y Conductor cross sections should comply with IEC 60943 Only usecopper 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 O Important To ensure that 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 ebulkhead mounting with screws Current rating 16A to 63A DIN rail mounting Bulkhead mounting
8. lite and full version 7100A User Manual 15 Identification 1 1 4 7100A units from 125A to 250A lite version only Power Terminal Supply side Internal Fuse Compartment a lt Il U ba mm Ul pu uuu UY MA Ir 100A Ha EURO THERM 7 ro Internal Wiring EJEUR 250 A 500 V Internal fuse for PE 1 11 125 to 250 A units Over Temperature 2 11 Alarm 250 A only 2 a i r Y 6RF 1 Or ser Oon n OHEAT EN 60947 4 3 CIE thana Control Terminals Fan Power pr 250 A only Power Terminal Load Side Protective Earth Terminal Fan 250 A only Figure 1 4 General view of 7100A power thyristor unit 125A to 250A lite version only 1 6 7100A User Manual Identification 1 2 TECHNICAL SPECIFICATIONS 1 2 1 Power Nominal current 16A to 250A at 45 C see product code Nominal
9. 80A and 100A rear view 25 7100A User Manual Installation 2 2 5 125A TO 250A UNITS MOUNTING BULKHEAD MOUNTING III m6 screws I JL ASUTAS AI ne H pi mo N a m q N N q Ap 1 NAGA 124 For2 L M6 screws Figure 2 5 125A to 250A 7100 A unit mounting 26 7100A User Manual Installation 2 3 WIRING 2 3 1 POWER CONNECTIONS 7100A power thyristor units with current ratings up to 100A are fitted with one channel controlled by thyristors an internal busbar for directly connectingthe load to the power supply direct channel not controlled by thyristors Thewiring diagram for this range of standard 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 Onethyristor controlled channel and The protective earth terminal PE marked with the earth symbol must be wired to the protective earth see section Safety during installation Terminal capacity Stripping length mm 16 to 2 40 to 63 80 to 100 Table 2 2a Power connection detail
10. The product code specifies whether or not a fuseis 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 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 63 Maintenance Fuse reference CH 260024 CH 260034 CH 330054 CS173087U080 CS173087U 100 CS173246U 125 CS176762U 160 CS176762U250 CS176762U 315 CS176762U 315 Fuse reference with striker bar CS176513U 020 CS176513U 032 CS176513U 050 CS176461U 080 CS176461U 100 CS173246U 125 CS176762U 160 CS176762U 250 CS176762U 315 CS176762U 315 Fuse and fuse holder assembly Reference F U 1033 16A F U 1033 25A F U 1451 40A FU2258 63A FU2258 80A FU2760 100A F U 7100 125A F U 7100 160A F U 7100 200A F U 7100 250A Dimensions mm XXXXxx 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 x D 26 5 x 94 26 5 x 94 26 5 x 94 35 x 96 5 35 x 96 5 53 x 107 Internal FUSE Tab
11. 2 3 1 2 7100 A units from 125 A to 250A wiring diagram 2 9 2 3 2 Control connections 2 10 2 3 2 1 Control terminal block 2 10 2 3 2 2 Control sign l 02 sca a ori eed Baer 2 11 2 3 2 3 Power supply for electronics 2 12 2 3 2 4 Alarm relay contact 2 12 2 3 2 5 Acknowledgement signal 2 12 7100A User Manual 21 Installation Chapter 2 installation 2 1 SAFETY DURING INSTALLATION MOUNTING AND WIRING AN gt Danger e 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 cabinets with a fan failure detection device or a ther mal 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
12. management Please contact your local Sales Office 74 7100A User Manual
13. 4 7100A User Manual Control Limits 4 3 CURRENT AND POWER LIMIT SPECIFICATIONS Thetable below summarises the operation of the limits used in the 7100A series power thyristor units Control Potentiometer type Name Action Thyristor unit set threshold max current recalibration Operation of limit Current limit by threshold If the maximum of the three currents lu gt Imax firing angle variation V2 control in Burst mode 16 Thyristor unit set threshold max current recalibration Current limit by threshold If the maximum of the three currents lu gt Imax firing angle variation P control in Burst mode 16 Recali bration of power control loop set ratio between P and setpoint Power limit by control in Burst mode 16 taking P max into account Thyristor unit set ratio between and setpoint current recalibration Current limit by transfer If the maximum of the 3 currents squared I gt V2 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 Im gt V2 automatic transfer to I control by firing angle variation VI lim Recali bration of power control loop set ratio between P and setpoint Power limit by control variation of firing angle new ratio
14. 5 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 19 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 erating lt 100A external see code erating 125A internal No fuse for Short waveinfrared elements in Burst mode and Single cycle firing or Phase angle without Current limit Attachment plate fixed to unit on symmetrical EN 50022 DIN rail or bulkhead mounting for ratings gt 125A bulkhead mounting only Oto 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 ll as defined by IEC 664 1 10 7100A User M anual 1 3 CODING Identification Ratings Basic selection Ratings 1 Nominal current 2 Nominal voltage ARA Self powered standard 7100A CODING 1 2 3 4 5 6 7 8 9 10 Basic selection 6 Firing mode Code PA Phaseangle Advanced single cycle 1 base cycle non firing by
15. European Low Voltage Directive 73 23 EEC dated 19 February 1973 modified by 93 68 EEC dated 22 uly 1993 and the Electromagnetic Compatibility Directive 89 336 EEC dated 3 M ay 1989 modified by 92 3Y EEC dated 28 April 1992 and 93 68 EEC dated 22 07 93 SAFETY Theunits have IP20 protection rating as defined by standard IEC 60529 External wiring must comply with standards IEC 60364 443 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 thehome EMC TEST STANDARDS Theunits 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 Radi ated 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 Eurotherm can provide optional filters on units up to 100A external filters for thyristor firing angle variation units EMC GUIDE To help you deal with installati on dependent electromagnetic interferen
16. LF 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 diagrams below sets and diagnoses the status of the PLF detection circuit 5 6 1 Setting request y Press until DLF LED flashes CHK Push button SET Setting LED DIF performed Setting LED DIF not performed Figure 5 3a PLF detection setting request 5 6 2 Diagnostic y Press until DLF LED lit CHK 2 Push button en lt 3s t 0 Diagnostic LED DIF ae Diagnostic LED DIE disabled LED DIF PLF fault Alarm relay Alarm on Alarm off gt Alarm on Figure 5 3b PLF monitoring diagnosis 5 6 3 Disabling y Press until DLF LED stops flashing CHK Push button SET gt 85 t 0 Diagnostic LED O DLF disabled Figure 5 3c Disabling PLF monitoring 5 6 7100A User Manual Alarms 5 7 OVERLOAD ALARM ICO option Thetype 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 ThelCO option is available in zero crossi ng firing modes Burst mode and Single cycle provided the DLF option is fitted ThelCO 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 condit
17. WER LIMITATION With the contol option VICL the following are available e I lim current calibration potentiometer e VI lim power calibration potentiometer e HRC calibration control signal on the ADJ CAL terminal block Recalibration is possible current I from 20 to 100 of Iy max e power P max 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 ter minals HRC 67 and OVC 66 represents e The image of the maximum current VI lim potentiometer fully turned in the direction of the arrow e The image of the maximum recali brated power 1 V corresponds to 100 Py The control signal is equal to 1 V if calibrations are nominal The minimum value of the signal is 0 1 V I max In and P max Pa 20 and VI lim set to 50 of Vy max max Setting 1 Turn the VI lim potenti ometer fully round in the direction of thearrow nominal power 2 Usethe I lim potentiometer to set the I max value 3 Usethe VI lim potentiometer to set the P max value Check the resulting power setting on the HRC signal accounting for I ax Important The current limitation must be done before adjusting the power limitation 4
18. Y potentiometer Page 3 3 CHK SET push button Page 5 5 5 6 7100A User Manual Identification Chapter 1 IDENTIFICATION OF POWER THYRISTOR UNITS Contents Page 11 General presentation 1 2 12 Technical specifications 1 7 1 2 1 Power usa an a ne aa na 1 7 BD DOA a AT 1 7 123 Dimensions ra nn ernannt 1 7 ED A COMEGO Mic a nn a Re kaaa 1 8 12 5 Firing Mod s nun nen se 1 8 1 2 6 EONtKOl a ee da et nd nen 1 8 12 7 Si9halliNg mcr Ran aa 1 EZS ALARMS sai aa A KAKA Npa di 1 9 1 2 8 1 Load Monitorin Alar MS 1 9 12 82 OverLoadAlarms 200 00 1 9 12 8 3 Alarm Relay naar nenn 1 9 12 9 Protection ma a essen 1 10 L210 Mounting 5258 en ne 1 10 1 2 11 Environment 1 10 T3 Coding 1 4 2 A atari tent cea pci he ee el Ute 1 11 7100A User Manual 11 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 all types The load controlled may may be high or low temperature coefficient resistive loads short wave infrared elements or transformer primaries Current 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 on
19. able 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 V2 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 s proportional to the analogue setpoint signal between 4 and 96 of the scale see figure 4 1 Control A parameter 100 100 ou Irms 75 u 50 N 25 0 4 Figure 4 1 Ratio between control system input and output Theratio between the setpoint and the control parameter V 12 or P is linear Four types of input signal are available in the thyristor unit product codes 0 20mA or 4 20mA 0 5V or 0 10V 4 2 7100A User Manual Control Limits 4 2 LIMITATIONS ADJUSTEMENT options Thethyristor units are factory calibrated to their nominal value I and Py Vy ly Thelimits can be adjusted by adjusting the values with the I lim multi turn and VI lim 3 4turn potentiometers on the front panel 4 2 1 CURRENT LIMITATION options without V1 control The I 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 Ilim The new current value li
20. between P and setpoint Thyristor unit set ratio between and setpoint Table 4 2 Operation of current and power limits current recalibration Current limit by transfer IF IDA yin 5 25 Iy automatic transfer to Im Reminder Recali bration sets the unit s new nominal current rating ly 7100A User Manual 45 Control Limits 4 6 7100A User Manual Alarms Chapter 5 ALARMS Contents Page Alarm diagnostic summary 5 2 5 1 Safety mechanisms 5 3 5 2 Alarm strategy sgae dy eu tee 5 3 5 2 1 Firing cut off 5 3 5 2 2 Alarm priority 2 2 nn 5 3 5 2 3 Memorisation 5 3 5 3 Load Monitoring 5 4 5 3 1 Setting the DLF alarm 5 5 5 3 2 PLF or TLF detection 5 5 5 3 3 PLF detection sensitivity 5 5 5 4 Load type matching 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 Setting Request 5 6 5 6 2 DIAQNOStIC ares ee a Balder 5 6 5 6 3 Disabling 5 6 5 7 Over Load Alarm 5 7 SL Availability mess an ea 5 7 5 7 2 Alarm co
21. ce 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 complianceis available on request 7100A User Manual iii Flowchart COMMISSIONING FLOWCHART Check characteristics Characteristics correspond Wiring Auxiliary power supply Control and limit in 12 V2CL control Calibrate minimum current ICO option over current alarm Calibrate maximum current Power control VI Calibrate Imax and Pmax while not firing for given load Apply control signal Power up Check firing Alarms signalled Normal operation Adjust ICO calibrations and threshold while firing at full rate Optimise firing delay for inductive load Adjust DLF alarm if conditions met to product code Chapter 1 Supply protection protective earth Chapter 2 power control If external supply amp for electronics or fan Page 2 lim potentiometer Chapter 4 Page 5 7 Ilim V lim potentiometers Control signal Chapter 4 HRC terminal ANA terminal block Pages 2 10 2 11 Chapter 3 Chapter 5 GRF DLF ICO LEDs ON Heat LEDs Chapter 3 Chapter 4 I lim potentiometer Page 5 7 DL
22. de OV5 only Control signal connector 10 kQ potentiometer Analogue internal 5 V control signal analogue signals a b 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 7100A User Manual 2 11 Installation 2 3 2 3 Power supply for electronics and fan option The power supply for the electronics auxiliary supply may beeither internal self powered code SELF or external 115V or 230V depending on the product code Only oneterminal 16for 230V or 17 for 115V 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 external supply must bein 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 gt 500 V Control 1A terminal fuses references T Auxiliary supply connector except self powered Figure 2 9 Typical 230 V auxiliary power supply connection 2 3 2 4 Alarm relay contact alarm option If one of the alarm options is fitted Type 1 or Type 2 a relay contact is available on the ALARM terminal block between terminals 71 and 72 or 73 and 74 see fi gure 2 10 The type o
23. e 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 transfor mer primary code XFMR The Power Control option VICL is not available on the lite version Full version Power Control option VICL only or combined with other options Alarm option GRF or DLF combined with Control option V2CL 12 or VICL e Overload option ICO 1 2 7100A User Manual Identification 1 1 1 7100A unit from 16A to 40A lite version Power terminals supoly side Protective earth terminal EUROTHERM 7100A 16 A 500V Ir Ve 3 12 PE Wu User 4 label 2 71 47 Internal wiring diagram Electronics power supply A Om HEAT Firing request AN NO Rating nominal current nominal voltage Burst mode or single cycle Control terminal references Auxiliary supply terminal references if specified Control terminal block Auxiliary supply terminal block if specified Power terminals load side Figure 1 1 General view of 7100A power thyristor unit 16A to 40A lite vers
24. f contact closed or open on alarm is determined by the product code Contact switching capacity 0 25A maximum 250 Vac or 30V dc External user supply for alarm acknowledgement Alarm acknowledgement connector Acknowledgement by contact or push button Alarm relay l contact 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 5V 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 5V supply may be used for this acknowledgement see figure 2 10 Note The DLF alarm can also be reset with the CHK SET push button 2 12 7100A User Manual Firing modes Chapter 3 FIRING MODES Contents Page 3 1 General and firing mode signalling 32 3 2 Burst mode codes C16 and C64 3 2 Firing delay XFMR option 33 3 3 Singlecycle code FC1 3 4 3 4 Advanced single cycle code ASC 3 4 3 5 Phase angle code PA 35 SA nn O 3 6 3 6 1 Ramp on Start up sasana nen 36 3 6 2 Magnetisation ramp XFMR option
25. half cycles ASC Burst mode Single cycle 1 base cycle FC1 base time 16 cycles C16 base time 64 cycles C64 7 XXXX Analogue signal current from OmA to 20 mA current from 4mA to 20 mA voltage from OV to 5V voltage from OV to 10V 9 Manual language Code French English German 10 Selected options Base version No options Standard V control End of code External 115 V supply Exter nal 230V supply 4 Fan power supply Code lt 200A No fan gt 250A 115V fan and 115V 230V fan and 230V 5 Thyristor fuse Fuse without fuse blown microswitch Fuse with fuse blown microswitch No fuse Version with options Selection of options YES 7100A User Manual 1 11 Identification Options 11 12 13 14 15 16 17 18 19 Options Certification Options and Warranty extension 11 Control options Code Voltage control V2 v2 PA only Current control 12 12 Open loop OL C16 and PA only 19 Certification option Code Voltage control V2 and No certificate of Current limit Compliance with Order Power control V x1 and Certificate of Compliance with Order Current limit 20 Warranty extension Code 12 Delay on first firing Code Without warranty extension NONE Burst firing C16or C64 Warranty extended to 5 years WL005 Transformer primary Other configurations 13 Load Monitoring alarms Code Serious Alarms Thyristor short circ
26. ies of whole supply cycles to theload Thyristor firing and cut off is synchronised with the supply and occurs at zero crossing Thyristor firing in Burst mode can be A a described by the firing time T non firing Lew aai time Typ and modulation time Ty where Tm T Typ and the Base Cycle Timeis equal to the number of cycles firing at 50 of the duty ratio or 50 of the power supplied to the load T T Thr Load Voltage The Base Cycle time is equal to 16 cycles for Figure 3 1 Thyristor firing for one of the code C16 and 64 cycles for code C64 phases in Burst mode 32 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 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 Delay Angle 70 firing must be delayed relative to the Setting DLY corre
27. ils of all terminals and ter mi nal blocks Terminal block name Terminal description Version No Name Purpose OV for analogue signals for analogue signals Internal analogue 5V supply 230V aux supply 115 V aux supply Neutral or second phase Base or Options Terminal capacity mm AWG Torque Nm OV logic signal Acknowledgement 5V internal logic ICO option Alarm relay contact NC contact Alarm Options Alarm relay contact NO contact Alarm Options OV calibration Calibration control V xI Control Relay contact Microcontact 2 125A Neutral or 2nd phase in the case of GRF ou DLF option Table 2 3 Description of control terminal blocks Alarm Options gt 125A 2 10 7100A User Manual Installation 2 3 2 2 Control signal 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 co
28. ion 7100A User Manual Identification 1 1 2 7100A units from 16A to 63A full version and 63 A lite ejguromerm 7100A 63A 500V 1 11 3 12 ike Figure 1 2 General view of 7100A power thyristor unit 16A to 63A full version and 63 lite 14 7100A User Manual Identification 1 1 3 7100A units from 80A to 100A lite and full version User label Internal power wiring diagram V2CL orVICL options Current limit GRF option serious alarms DLF option diagnostic alarm Electronics power supply Firing request Phase Angle Control terminal references Power terminals supply side Protective earth terminal a N Rating N nominal current nominal voltage EJ EURO THERM 71004 CI sa im Vi 3 12 hg V2CL VICL and I2 options at vee Current calibration m un ILIM Y car O sr Oon VILIM Nr OHEAT gt DLF option Diagnostic alarm push button VICL option Power calibrati IM 00 o 3 000 O Control connectors Power terminals load side Figure 1 3 General view of 7100A power thyristor unit 80A to 100A
29. ion 10 VA Analogue digital communication with option either remote analogue setpoint 05V or 0 10V 100kQ input 0 20 mA or 4 20 mA 250 Q input or manual setpoint potentiometer 5V supply available for use with 10kQ potentiometer Burst mode base time 16 or 64 cycles Single cycle 1 base cycle e Advanced single cycle 1 base cycle firing by wholecycles non firing by half cydes Phase angle Standard Load voltage squared V2 Option Apparent power V I VICL option up to 100 A only Load current squared 12 option in Phase angle Open loop in Phase angle Better than 2 of full scale Option depending on firing mode Phase angle Automatic control transfer V2 lt gt 12 or V I lt gt 1 Current recalibration set by potentiometer on front panel Burst mode 16 cycle base Current limit with fixed threshold set by potentiometer on front panel A control signal is available in V I control for power and current calibration and for maintenance Option to control transfor mer primaries in Burst mode eTransfor mer magnetisation firing angle ramp on first firing and after firing is stopped for 5 seconds or more Delay on first firing set by potentiometer on front panel For all loads in Phase Angle firing Safety ramp with each change of setpoint Electronics supply present green ON LED Thyristor firing request green HEAT LED 1 3 7100A User Manual Identificatio
30. ion is only possible under the following conditions eno over temperature or thyristor short circuit faults erms voltage across the load greater than 40 of the nominal voltage and erms load current greater than 5 of the rated current Total Load Failure TLF monitoringis only possible under the following conditions eno over temperature or thyristor short circuit faults therms voltage across load s 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 Thetype of load controlled is selected when ordering with the product code LTCL Low Temperature Coefficient Load or e 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 alar ms using the exter nal acknowledgement logic input see Type 2 alarm 7100A User Manual 5 5 Alarms 5 6 Functions of D
31. ions 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 current 1 5 V2 Imax the rms load current over 5 consecutive seconds on the phase exceeds a threshold of 110 of the recali brated rms current 1 1 Tnax Theinstantaneous 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 eat the end of the half cycle when the instantaneous current threshold is exceeded after approx 5s of continuously exceeding the rms current threshold Over current alarm cut off is signalled as follows the position of the Alarm relay contact changes ethe 1CO 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 e Setting the Over current alarm threshold in operating conditions is described on page 4 4 Red LED Over current fault Alarm threshold simultaneous adjustment potentiometer for rms current and instantaneous current Figure 5 4 Layout of the ICO LED and I lim potentiometer with the ICO option The over cur
32. le 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 voids the product guarantee 7100A User Manual Notes 7100A User Manual 71 72 7100A User Manual 7100A User Manual 7 3 EUROTHERM For over thirty years Eurotherm Limited have been providing an unparalleled level of serviceand expertiseto customers in thecontrol 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 locationsin Europe and the USA and is a major supplier to the world s processing and manufacturing industries The company is 1509000 approved and operates TickIT protocols for software
33. max can be recalibrated between 20 and 100 of Iy Green LED gt TT TT TITO ER O Current Flashing a gt Tum fas x current limit active LL O a i potentiometer Current setting 1 Turn the I lim potentiometer fully round in the opposite direction to the arrow max 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 max Mew 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 lim potentiometer fully round in the direction of the arrow I max 100 of Iy 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 alar m settings calibration for the nominal load current used Important If spurious alarms occur rotate the I lim potentiometer in the direction of the arrow one turn at a time until the alar ms cease 7100A User Manual 4 3 Control Limits 4 2 2 CURRENT AND PO
34. n 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 all fan cooled units gt 125A the unit cuts out if the temperature threshold is exceeded Signalling Red T LED if oneof thel2 VI or CL alarms or regulation options is selected Alarm relay contact with any one alarm 1 2 8 2 Overload alarms Option e Overload alarm Cut out if current threshold exceeded ICO Option Only available for Zero crossing firing with DLF option not available with Short waveinfrared elements transformers and codes VICL and V2CL Two alarm thresholds instantaneous current and rms current 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 2
35. nditions 5 7 5 7 3 Alarm Actions Memorisation Acknowledgement 5 7 7100A User Manual 51 Alarms ALARM DIAGNOSTIC SUMMARY The table below summarises all status LED information needed to diagnose the fault All Alarm versions options F amp F F amp F F amp F y F DIAGNOSTIC No firing Over Over Thyristor Thyristor Total Partial alarm current temperature short circuit short circuit load load Phase angle Firing Firing or failure failure or inhibited inhibited Total zero see page 5 7 load failure crossing Figure 5 1 Diagnosing operation and alarms according to front panel LED status 5 2 7100A User Manual Alarms Chapter 5 ALARMS Options 5 1 SAFETY MECHANISMS Thealarms on the 7100A protect the thyristors and the load against certain types of abnor mal operation and providethe user with information about thetype of fault e The user is responsible for installing independent safety mechanisms which must beinspected regularly Given the value of the equipment controlled by the 7100A this is strongly recommended Eurotherm can supply various types of suitable alarm detector 5 2 ALARM STRATEGY eLoad monitoring option monitoring of load and thyristors Over Load Alarm option protection against exceeding a current threshold 3 Alarms are not under any circumstances a replacement for personnel pro
36. ole number of cycles for firing and e 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 ratiosn gt 50 thenon firing timeis 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 Singlecycle 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 Typ 1 cycle Advanced single cycle Typ 0 5 cycles Ty reduced 66 6 power F 2 Typ 66 6 power Te 2 Typ vr vr Figure 3 4 Exemple of Single cycle and Advanced sigle cycle firing mode 34 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 6 It varies with the setpoint signal The load voltage v and current i depend on the three phase load configuration a Resistive Load 4S or 6D b Inductive Load 4S or 6D Supply Voltage
37. re DLF alarm adjustment and diagnostic push button Figure 5 2 Layout of front panel LEDs with GRF and or DLF option LED State Firing Temps de DLF stopped r action orange typique Partial Load Failure Flashing PLF ON 5sto 13s 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 Ther mal faults are signalled by the alarm relay if one of the alarm options is fitted 54 7100A User Manual 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 recal culated in the following conditions rms voltage across load is greater than 40 of the nominal voltage erms current is greater than 30 of the rated current eno 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 f a supply cut out occured 5 3 2 Partial or Total Load Failure Detection PLF detect
38. rent 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 to the ACK terminal on the DIG IN terminal block logic signal inputs The internal supply SVD terminal or an exter nal source may be used to acknowledge the alarm remotely see figure 2 12 7100A User Manual 5 7 Alarms 5 8 7100A User Manual Maintenance Chapter 6 MAINTENANCE Contents Page 6 1 Safety during maintenance 62 62 Malntenance a Shea Nahas bac An Nan une Aa anni 6 2 6 3 Thyristor protection fuses 62 7100A User Manual 61 Maintenance Chapter 6 MAINTENANCE 6 1 SAFETY DURING MAINTENANCE Please read carefully before commissioning the thyristor unit Important e Eurotherm shall not be held responsible for any damage injury losses or expenses AN 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 itis 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 Theheatsink temperature may e
39. s for ratings from 16 A to 100 A 16 4 or SS M10nut 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 thenominal voltage for thethyristor unit Supply protection and Ph a N Ph2 cut out installed by user Direct channel terminal supply side Thyristor protection fuse Protective earth connection Controlled BA terminal supply side 7100A 100 230V L1 3 12 NAE 2 T1 4 72 EUROTHERM Protective earth Internal power wiring terminal diagram Control terminal references Signal input terminal block N Direct channel terminal load side ER 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 thethyristor unit Protective Earth LI terminal
40. s ramp the first burst mode firing cycle starts with thefirst firing delay Supply Voltage Load Voltage Load Voltage Magnetisation gradiant Delay for first firing Figure 3 7 Transformer primary power up in Burst mode XFMR option 36 7100A User Manual Control Limits Chapter 4 4 CONTROL AND LIMITS Contents Page 4 1 CoNtrol 2 ee een dormir an nt knead 42 4 1 1 Control parameters 42 4 1 2 Input Outputratio nn 4 2 4 2 Limitation adjustment options 43 4 2 1 Current recalibration options without power control 44 Settings ie facie ae rd waa wen 44 Settings with ICO option 44 4 2 3 Current and power limitation 45 4 3 Current and power specifications options 45 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 V2 erms load current squared 12 e 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 power limits Current squarred control Only avail
41. sponding zero for each phase er ae The delay beforethyristor firing starts may be 0 7 nm o adjusted with the DLY potentiometer available 90 with the XFMR option C16 or C64 Burst mode Figure 3 3 First firing delay adjustment potentiometer XMFR option The DLY potentiometer is a 3 4turn 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 thefirst 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 6 of the load to obtain a minimal transient over current using an oscilloscope 7100A User Manual 33 Firing modes 3 3 SINGLE CYCLE code FC1 Burst mode firing with a single firing or non firi ng cycle is known as Single cycle For example with a setpoint of 50 corresponding to a duty ration 50 the modulation comprises 1 firing cycle and 1 non firing cycle For duty ratios n lt 50 the firing ti me remains unchanged 1 cycle and the non firing timeincreases For duty ratios n gt 50 the non firing time remains unchanged 1 cycle and the firing timeincreases 3 4 ADVANCED SINGLE CYCLE code ASC In order to reduce power fluctuations during firing time Advanced single cycle thyristor firing mode uses e a wh
42. tection Danger In addition the unit has active securities eNetwork voltage default detection no network or supply voltage not high enough and frequency error Over temperature protection fan cooled units 250 A only 5 2 1 Firing cut off Over Load Overheating for current ratings 250 A only 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 ther mal faults and thyristor short circuits take priority over load fault display 5 2 3 Memorisation Load monitoring and standard alar ms 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 7100A User Manual 5 3 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 250A only eDLF 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 failu
43. uit Total Load failure over temperature for rating 230 A Partial load failure and Serious alarms No alarms With DLF option Short waveinfrared Low temperature coefficient load Without DLF option or High temperature coeffi ci ent load 15 OverLoad alarm with DLF option and burst firing only 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 Installation Chapter 2 INSTALLATION Contents Page 2 1 Safety during installation 2 2 2 2 Types of mounting 2 3 2 2 1 Attachment plate 2 3 2 2 2 Mounting Detaching on DIN rails 2 3 2 2 3 16 A to 63 A units mounting 2 4 2 2 3 1 DIN rails mounting 2 4 2 2 3 2 Bulkhead mounting 2 4 2 2 4 80 to 100A units mounting 2 5 2 2 4 1 DIN rails mounting 2 5 2 2 4 2 Bulkhead mounting 2 5 2 2 5 125A to 250A units mounting 2 6 PA XL LE ELA Te maba aid ne baked 2 7 2 3 1 Power connections 2 7 2 3 1 1 7100 A units from 16 A to 100A wiring diagram 2 8
44. voltage 100 V to 500 V see code Frequency Use from 47t0 63Hz Dissipated power 1 3W approx per amp Cooling Ratings lt 100 A Natural convection Ratings gt 125 A 115V or 230V 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 theidentification label e AC 51Non inductive or low inductance loads furnace resistances Resistive load with low temperature coefficient e AC 55b Switching of incandescent lamps Short wave infrared elements SWIR units lt 100A only AC 56a Switching of transformers Transformer primaries and high temperature coeffi cient resistive loads 1 2 3 Dimensions Rating A Height mm Length mm Depth mm a All Lite Full Lite Full Options Base 1 Option 2 16to 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 12 or V2CL or one alarm option GRF or DLF 7100A User Manual 1 7 Identification 1 2 4 Control Supply Control type 1 2 5 Firing modes Zero crossing firing Firing angle variation 1 2 6 Control Control parameter Linearity and Stability Current limit V2CL option Calibration Transient current limit XFMR option 1 2 7 Signalling Self powered from line or external power supply 115V or 30V 10 15 Consumpt
45. xceed 100 C The heatsi nk 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 tightened see Wiring section page 2 7 elf the load parameters change the operation of the PLF detection must be diagnosed see DLF option section elf a DLF alarm occurs check the load wiring and condition of contacts Usethe 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 Thethyristor 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 Thethyristors 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
Download Pdf Manuals
Related Search