Thyristor Connections
Contents
1. FC36M User Manual 4 mn G 9 omrsili G www united automation com X20004 Issue 3 17 06 05 RoHS Compliant Directive 2002 95 EC This document was created with Win2PDF available at http www daneprairie com The unregistered version of Win2PDF is for evaluation or non commercial use only2. and switch to burst mode when the control signal ramps up to the set point It will stay in the burst mode even if the signal drops below the set point It will restart in phase angle mode when the unit is switched off or reset Soft Start When the FC36M is initially powered up the output is inhibited for 0 5 seconds then the soft start is automatically enabled and the firing circuit will ramp up at a rate determined by VR3 0 30 seconds The ramp time relates to full conduction for example if the ramp time is set to maximum 30 seconds and the set point is 50 the controller will ramp to the set point in 15 seconds Soft Stop and Soft Start after power up Soft Stop after power up can be achieved by disconnecting the I P signal SW4 position No 5 should be switched ON thus bringing in a preset slew rate of 1 second Other rates of up to 5 seconds can be programmed via a Commander Module Refer to the Commander Module manual for more information Whilst the signal is present it will remain in the on state until the signal is removed Another option is to Enable Disable the ramp down input Enabling it will ramp down the output at a rate determined by VR3 Disabling it will ramp up the output up to the level on the SIG I P terminal again at a rate determined by VR3 Hard Stop and Hard Start after power up Hard Start and Hard Stop after power up can be achieved with the switch marked SW1 in the OFF position and the ramp preset VR3 turned
3. to the fully clockwise position When A or B inputs are enabled or disabled and SW4 position No 5 is in the OFF state the firing circuit will immediately turn on and off 4 LEDI J1 LINK REVERSES PHASING 2 ANALOGUE CONTROL 5V DC LED3 ek VR1 CLOCKWISE TO INCREASE CURRENT TRIP RAMP L2 INDICATES CURRENT LIMIT ON INDUCTIVE L3 INDICATES OUTPUT LEVEL OFF RESISTIVE LOAD ISSUE 7 Morr C TY N mMOPITU C p CI ewe Ji OFF DIGITAL CONTROL LED2 i L 123 321 ON CURRENT LIMIT ENABLED TRIP o Li INDICATES POWER OFF CURRENT sa DISABLED PRODUCT CODE A34411 ON REVERSE PULSE TX OUTPUTS HING OVER CURRENT TRIP STANDARD PULSE TX OUTPUT oak SOFT START SOFT ENABLED URRENT LEVE OFF SOFT START SOFT DISABLED SET CUR VR2 CLOCKWISE TO INCREASE CURRENT ON t2 PULSE TIMING DELAY LOGIC RAMP RATE AND SOFT START OFF STANDARD TIMING VR3 CLOCKWISE TO INCREASE RAMP SPEED 30 SECONDS alta 300W TINY IION J79WY ON 0 25V DC LIMIT INPUT OFF 0 W0mvV DC LIMIT INPUT B UP DOWNC O P UP 5 24 DC LOGIC VP 5V O 5V SW1 ON L1 L2 EARTH Sw4 POS1 ON REFERENCE PHASES NS N N 0 5V or 0 10V de z 0 25V dc NOMINALLY 400V N N NY oer Mass yO bas RIE Nhe EP Man chy aE OFF B UP DOWNC OP UP 1234568 5 24V DC LOGIC FP 5V DSV OV mA LIMIT Swe SET LIMIT CLOCKWISE TO INCREASE LIMIT LOGIC CONTROL USING LOCAL SIGNAL LIN
4. C TECHNICAL SPECIFICATION SUPPLY FC36M 400V FC36M 230V FC36M 110V ISOLATION Isolation voltage CURRENT CONSUMPTION Full conduction TX secondary GATE PULSES Initial short circuit gate current Sustaining short circuit gate current Initial pulse voltage open circuit Sustaining pulse voltage open circuit Initial gate pulse rate of rise Pulse width 50 60 Hz Pulse train frequency OPERATION MODES Selection by input enable or auto CONTROL SIGNAL ANALOGUE Voltage signal into 10K ohms 20K ohms Current signal into 240 ohms CONTROL SIGNAL LOGIC Opto isolated inputs SOFT START Adjustable range from power up CURRENT LIMIT Controlled limit or over current trip Selection by SW3 LOAD OPTIONS Selection by switch SW4 TEMPERATURE LIMITS Operating range C Storage C MECHANICAL DIMENSIONS Length mm x Width mm x Height mm Holes and fixing centres mm FUSING 360 440V ac 50 60 Hz 205 255V ac 50 60 Hz 95 125V ac 50 60 Hz 3500 Vrms 350mA 500mA 250mA OV 1A us 22us 25 kHz Burst Fire and Phase Angle 0 5 V dce 0 10V de 4 20 mA 5 25 V de 0 30 seconds 0 100mV or 0 25V dc Resistive or Inductive 0 65 C 0 to 85 C 162 x 108 x 40 150 x 62 It is recommended that semiconductor fast acting type fuses or circuit breakers Semiconductors MCB be used for device protection On initial operation some loads may need an increased Factor of S
5. K 5V TO VP WHEN USING IN LOGIC MODE L1 L2 EARTH SW4 POS1 MUST BE OFF REFERENCE PHASES NOMINALLY 400V swa mn Vue gt o o ele o o o o N d ERE REAN A A eR A E I I LI LI LI LI mv e EARTH Se ee oe ha el A B UP DOWNC OP UP 4 20 123456 5 24V DC LOGIC UP 5V OSV OV mA LIMIT SW4 SET LIMIT CLOCKWISE TO INCREASE LIMIT LOGIC MODE USING EXTERNAL SUPPLY LINK 5V TO P WHEN USING IN LOGIC MODE SW4 POS1 MUST BE OFF L1 L2 EARTH REFERENCE PHASES NOMINALLY 400V NMOO dive 5 24V DC INPUTS WARNING ENSURE SUPPLY IS OFF WHEN MAKING CONNECTIONS AND ADJUSTING ON BOARD SWITCHES Twelve Pulse Connections TWELVE PULSE CONNECTIONS INTER PHASE TRANSFORMER SECONDARIES MPIV LEDI BV de J1 LINK REVERSES PHASING Lay kas L 123 321 ve 4 LED3 re 30 SECONDS A KV on et ON A INTERNALLY ENABLED A L ON 0 0V SIG OFFm A INTERNALLY DISABLED OFF OFF 0 5v SIG 8W1 Sw2 eTBie eTB2e eTB3e eo UOT ONE RSE RAEN TN FOR TINGE PG A i l A E UP DOWNC OP UP 420 5 24V DC LOGIC UP 5V 0 5 OV mA LIMIT SW4 ASVLIOA HSIH_ SNINY VA PRODUCT CODE A34411 ISSUE 7 460V Application Gate Drive Picket Fence with a PRF of 25Khz Power Supplies an initial firing pulse of 8 volts open circuit 500 mA Half and Fully controlled Rectifiers int
6. Thyristor Connections LED 5v dg 3 H LINK REVERSES PHASING 1 1 30 SECONDS ON A INTERNALLY ENABLED n j ONEO 10V SIG OFF A INTERNALLY DISABLED 9 orros SIG SW eTBte TE o i PEN j S 1 TNZ AA INE ONES ENE PEO A O OL Wf E Y A T Y F y E wi A Hees E ee RA z is a j OFF 8 A B UPDOWNC OP IP 420 123456 SET 24V DC LOGIC KP SV O 5Y OV mA LIMIT SW4 amp Marr PRODUCT CODE A34411 ISSUE 7 460V ASVLIOA_HSIH DNINYVAM FUSE1 1A FUSE2 1A LOGIC CONTROL INPUT The logic control inputs are optically isolated and are ideally utilised for remote control in electrically noisy environments The logic inputs A B UP and DOWN are activated by a 5 to 24 V dc signal with respect to terminal C which is O V The logic input can also be activated by the 5V dc output from the FC36M via relay switching For the following logic control options position No 1 on the 6 way DIL switch SW4 should be switched to the OFF position For additional control options see table A Logic control Maximum power output levels are set by the input voltage at the terminal marked SIG I P With for example 4V on this input the output will be limited to a maximum of 80 Link the SIG I P terminal to the 5V output terminal for 0 100 control range Phase Angle control Option 1 the switch marked SW1 can be swit
7. afety F of S for unit and or device protection See SRA Data sheet X10255 for further information 7 Manual Control The FC36M firing circuit has a 5Vdc output that can be used to supply the clockwise end of a 5K ohm potentiometer The wiper is connected to the terminal marked SIG I P and the counterclockwise end to OV Voltage control For control using a remote dc signal the positive input should be connected to the terminal marked SIG I P and the negative input to be connected to OV The input impedance is 10K ohms for 0 5V input and 20K ohms for 0 10V input Current control For current control connect a 4 20mA dc signal between terminals marked 4 20mA and OV This input can also be used as 1 5V dc input The input impedance is 240 ohms Phase Angle control Option 1 the switch marked SW1 should be switched to the on position This position connects terminals A with 5V Option 2 see Soft Starting the switch marked SW1 can be switched to the OFF position The OFF position isolates the inputs and disconnects terminals A from 5V Inputs A and C then require an external supply between 5 and 24V dc Burst Firing control The switch marked SW1 should be switched to the OFF position and the terminal marked B should be linked to5V Phase Angle to Burst Firing control The switch marked SW1 should be switched to the ON position and terminals A and B should be linked together The firing circuit will start in phase angle mode
8. allows OEMs to easily incorporate the FC36M into their product design and end users can update existing equipment very quickly with little development costs It can also be supplied with a DIN rail mounting enclosure Please refer to the Commander Module manual for further information RECOMMENDATION amp SAFETY REQUIREMENTS Other documents which may be appropriate for your applications are available on request CODE IDENTITY DESCRIPTION X10229 RFI Filter recommendation Addressing the EMC directive X10213 ITA Interaction Uses for phase angle and for burst fire control X10255 SRA Safety requirements Addressing the Low Voltage Directive LVD including Thermal data cooling Live parts warning Earth requirements and Fusing recommendations X10378 ILR Inductive loads remedy sheet for use with Phase angle controllers X10652 CM FC36M MV Commander module remote programmer AP02 4 COS UAL Conditions of sale NOTE It is recommended that installation and maintenance of this equipment should be carried out by suitably qualified personnel with reference to the current edition of the I E E Wiring Regulations BS7671 The regulations contain important requirements regarding the safety of electrical equipment For International Standards refer to I E C Directive I E C 950 EXAMPLE HAC WITH FC36M UNITED AUTOMATION LTD Putting you in control The FC36M is one of a range of quality reliable and cost effective power contr
9. anual Three Phase Firing Board Model FC36M This manual should familiarise the user with the relevant features and specifications of the FC36M firing board and incorporates a simple checkout procedure with typical connection diagrams FC36M General information The FC36M is a microprocessor version of the industry standard FC36A originally developed in the 1980s It is smaller in size than its predecessor with a reduced component count which increases its reliability It also has more options available with the selections on a six way DIL switch making it much more versatile and economical It has an integral supply and timing transformer which is used as a Phase reference The FC36M is a general purpose Phase Angle and Burst Firing circuit designed to be used in a variety of two or three phase 50 60 Hz applications It can also be used as a Three single phases to Neutral controller It is easily configured by the user to optimise its performance which is achieved primarily by the use of DIL switches To make a complete three phase controller the FC36M requires power devices protection fuses and a suitable heatsink It can be used for driving three phase transformer primaries in either star delta or phase to neutral configurations and can also be configured to control either three phase half or fully controlled thyristor bridges It may be used on resistive loads phase to phase or phase to neutral using burst fire or phase an
10. ched to the ON position which utilises the internal 5V supply This ON position simply connects terminals A with 5V Option 2 the switch marked SW1 can be switched to the OFF position The position isolates the inputs and disconnects terminals A from 5V Inputs A and C then require an external supply between 5 and 24V dc To Increase output power The terminal marked UP requires a 5 to 24 V dc supply Terminal C is OV The output power will increase at a rate determined by the ramp setting on VR3 0 30 seconds The output will reach its maximum when the ramp time has elapsed If the UP signal is terminated during the ramp time the output will remain at that level for example if ramp time is 10 seconds UP signal is on for 5 seconds power output will ramp up to 50 To decrease output power The terminal marked DOWN requires a 5 to 24V dc supply Terminal C is OV The output power will decrease at a rate determined by the ramp setting of VR3 The output will decrease to zero should the DOWN signal be maintained If the DOWN signal is interrupted before the ramp down time has elapsed the output will stay at that level Proportional control can be achieved with an on off signal This arrangement is particularly useful for temperature controllers relay switching and PC based process controllers Burst Fire control The switch marked SW1 should be switched to the OFF position and the terminal marked B should be linked to 5V Link terminals mar
11. gle or a combination of both firing modes Its analogue signal inputs can be used in conjunction with each other to set two different output levels The logic opto coupled inputs allow for remote control in electrically noisy environments There are two current set points the lower one is used for current control and the upper limit when tripped will cause the unit to latch in the off state The firing circuit is based around the PIC18F458 Microprocessor running at a clock frequency of 20MHz generating six controlled thyristor gate pulses nominally displaced by 60 It can be controlled by either 0 to 5v O to 10v or 4 to 20mA analogue signal or remote 5 to 24V dc logic signal The logic inputs also provide remote soft start soft stop and switching from Phase Angle to Burst Fire either manually or automatically This model is available in various supply voltages see technical specifications for more details Remote Programmer A Commander Module CM FC36M MYV has been introduced to complement this Firing Board The Commander Module is a Human machine Interface HMI control unit which incorporates a simple keypad to input data and a console that displays all the functional information relating to the firing circuit settings This includes current control switch settings the conditions of the inputs and many other features such as timing calibration slew rate setting Its compact size and simple connection by means of a RJ45 lead
12. ked 5V and SIG I P For remote Burst Firing control a 5 to 24V dc signal should be connected between B and C C is OV Inductive or Resistive loads With switch position 3 on DIL switch No 4 in the OFF position the firing circuit is configured to control resistive and some slightly inductive loads When the switch is in the ON position the firing circuit should be used on inductive transformer and coil type loads Current Limit The current limit input is designed to operate from either a 0 100mV SW3 OFFP or 0 25V SW3 ON dc input connected between terminals marked LIMIT input and OV With maximum current limit feedback signal adjust VR4 so that approximately 3 5V dc appears on pin 1 of IC8 This voltage is fed into the microprocessor IC5 and compared with the voltage set by VR2 I SET which can be measured on pin 5 IC6 When the voltage on pin 1 IC8 is greater than the voltage on pin 5 IC6 the controller will start to ramp down until the current reaches the I SET level Current Trip The current trip is designed to operate from either a 0 100mV SW3 OFF or 0 25V SW3 ON dc input connected between terminals marked LIMIT input and OV With maximum current limit feedback signal adjust VR4 so that approximately 3 5V dc appears on pin 1 of IC8 This voltage is fed into the microprocessor C6 and compared with the voltage set by VR1 1 TRIP which can be measured on pin 7 IC6 continued 5 When the voltage on pin IC8 i
13. o 1 Ohm and sustaining pulses 250mA into 1 Ohm AC Motor Conttol per output The sustaining pulses are 20 uS Wide DC Motor Control High output initial triggering pulses Gate isolation to 3500 V rms SONESTA Adjustable Soft start and soft start times eaer Conmollers Selectable hard start and hard stop Induction Generator 50 60 Hz operation auto selection AC Voltage Regulation Remote Logic input for control in noisy environment 5 Three Phase Transformer Control 24 V de 3 analogue control inputs 0 5 V 0 10V dc and 4 20mA Current control input 0 100 mV Over current limit trip Latching Adjustable ramp control 0 30 seconds Pre selectable or automatic Phase Angle to Burst Fire control Switchable Phase reversal Thyristors require a high initial gate current pulse Selectable Inductive or Resistive load setting and comparatively wide sustaining pulses to ensure Selectable timing delay for use as a twelve pulse driver reliable firing particularly at small phase control High immunity to mains voltage distortions angles The FC36M provides the following firing Complete with integral phasing and supply transformer specifications Additional Firing boards can be configured to trigger paralleled SCR s for very high current applications or to provide a twelve pulse driver for smooth DC control Key Features OPERATING INSTRUCTIONS APPLICATIONS The firing circuit responds to voltage or milliamp current signals to produce six 60 spaced high cur
14. ol products that we offer For further details see our website www united automation com Product Portfolio Power Supplies to Specification Heating Ventilation and Air Conditioning HVAC systems Automatic Control Systems Thyristor or Operated Systems Electronic Controls for Heating Systems Thyristor Phase Control Products Microprocessor based Water Heating Controllers Command amp Control Systems Modular High Voltage Power Supplies Electronic Temperature Controllers Automatic Control Systems for Controlled Atmosphere Furnaces Automation Control Systems for Glass and Ceramics Manufacturing Solid State Power Supplies for Electroplating Triacs Semiconductor Controlled Rectifier Stacks Thyristor Trigger Modules Electronic Assemblies Solar Heating Automatic Control Systems Solid State Relays Digital Energy Modules Fuses Filters Single and 3 Phase Product Applications Heaters Ovens Stress Relieving Lighting Equipment Power Supplies Furnaces Vats Trace Heating Annealing Vibrators Dryers Extruders Smelting Plating Electromagnets Voltage Controlled Motors Pipe Heating Process Heating Vending Machines Space Heating Lamp Loads Blenders Mixers Pumps Quartz Lamps Fans www uhited automation com 1 Southport Business Park Kew Southport PR8 4HQ Tel 01704 516500 Fax 01704 516501 www united automation com Enquiry united automation com Three Phase Firing Board Model
15. rent thyristor gate pulses Additional boards can be configured for high current parallel gating of additional thyristors and for twelve pulse converters rectifiers CONNECTIONS The Gate and Cathode outputs have 6 3mm blade terminals All other connections are made with captive screw and leaf terminal blocks 0 25mm header connections are provided to connect firing boards for paralleled thyristor drive or 12 pulse configuration Note J1 Jumper reverses phasing LED INDICATION Three LED s are used for status and fault indication LED1 green illuminates when the 5 volts dc supply is present When SW4 position No 2 is ON LED 2 red will illuminate when the LIMIT input has reached the level set by I SET LED 2 and LED 3 orange will alternately flash on a 1 second timebase when the LIMIT input exceeded the value set by VR1 I TRIP The FC36M will shut down and will stay latched in this statue until the FC36M is powered down or reset Under normal conditions LED 3 is used to indicate the output status In phase Angle mode when the control signal is increased so does the brightness of LED 3 In Burst Fire mode LED 3 will pulse on a one second timebase with a variable mark space on off ratio determined by the control signal ANALOGUE CONTROL INPUTS For the following analogue control options the 6 way DIL switch SW4 should have position No 1 switched to the ON position For additional control options see table A on page 6 of this m
16. s greater than the voltage on pin 7 IC6 the controller will shut down immediately and will stay latched in this state until the microprocessor is powered down or reset The voltage on pin 7 C6 is normally set to 4 2V to allow for a 120 maximum current level Switch No 1 Function Selected A internally enabled A internally disabled Function Selected pn 0 10V Signal Position 1 Off 0 5V Signal Switch No 3 aw tnetion Selected ie ee 0 5V limit signal input a ee 0 100mV limit signal input Switch No 4 Function Selected a gh o o o o O o o ooo Oooo Go Analogue input 0 5Vdc 0 10Vdc and 4 20 mA and SW1 in On position Position 1 Logic inputs A Phase Angle B Burst Fire U Up D Down Red Limit input 0 100 mV SW3 off or 0 25 SW3 ON Current Limit Set by VR2 Position 2 Limit input off Orange Inductive load timing Position 3 we bok Resistive load timing Yellow Reverse pulse transformer outputs Position 4 Standard pulse transformer outputs Pee Soft Start Slew rate ENABLED 1 second factory preset Pou Soft Start Slew rate DISABLED Bl Timing for 12 pulse operation using additional FC36M Standard timing position Position 6 Power connections AS SHOWN ON STACK DATA SHEET 3 5 4 WIRE 3 PHASE WITH STAR POINT TO NEUTRAL NOTE FLOATING STAR LOAD WHEN NEUTRAL NOT USED 3 WIRE 3 PHASE CLOSED DELTA LOAD 7 6 WIRE 3 PHASE OPEN DELTA LOAD 3 PHASE CONTROLLED D
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