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| 1,2 & 3 PHASE BURST FIRING TRIGGER MODULE BM1/2/3 X10219 INTRODUCTION This burst fire control module incorporates the unique MONO-LINKTM - Gate to Gate firing feature which uses single path hard firing for each phase thyristor pair, eliminating cathode firing connections. The zero crossing triggered output has a variable on/off ratio which is proportional to the manual control signal or dc input demand signal. Phase timing problems are eliminated, as the opto-isolated output driver stage is self timing from the associated power device connections. The burst firing circuit prevents fast changes in load current thus inhibiting Radio Frequency Interference. APPLICATIONS Virtually all resistive heater loads including air curtains, space heaters, ovens, furnaces, hot plates, extruders, moulders, boilers, soldering pots and irons, heating tapes, drying and other heating & ventilating applications, when used in conjunction with auxiliary power devices. FEATURES EXAMPLE - BM3 * Fires triacs or thyristors up to 440V, * Hz supplies. * MONO-LINK TM - Gate to Gate firing. * No phase timing or matching required. * Zero volts switching (RFI free). * Status LED giving output ratio indication. * High Isolation opto-coupled output. INSTALLATION AND DIMENSIONS POWER CONNECTIONS SPECIFICATIONS Signal Span minimum Signal Span maximum Signal Zero offset dV/dt rating Max. Gate/Line voltage Trigger isolation voltage Trigger output rating Storage temperature 0 to 2V dc 0 to 25V dc 0 to 30% of span 100V/ s 440V ac 2500V rms 0.8A -20C to +85C AC input supply Auxiliary output Line Frequency Max. Ambient temperature Cycle time base nominal Mono-Link fuse Manual potentiometer Power connections 18 to 24V ac/dc @ 65mA 5V dc @ 5mA protected 50/60 Hz 65C operational 1 second F100mA (HRC) 2K, 5K or 10K 6.3mm Amp tags FUSING: It is recommended to use semiconductor (fast acting) type fuses or circuit breakers (Semiconductor - MCB) for unit protection and appropriate protection for unit supply (HRC F1A). See SRA Datasheet for further information. CE MARKING This product family carries a "CE marking. For information see recommendation section and contact our sales desk. (See Declaration of Conformity). RECOMMENDATION Other documents available on request, which may be appropriate for your applications. CODE IDENTITY DESCRIPTION X10229 RFI Filtering 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 & Earthing requirements; Fusing recommendations. AP02/4 COS UAL Conditions of sale NOTE It is recommended that installation and maintenance of this equipment should be done with reference to the current edition of the I.E.E. wiring regulations (BS7671) by suitably qualified/trained personnel. The regulations contain important requirements regarding safety of electrical equipment. (For International standards refer to I.E.C directive IEC 950). ORDER CODE: State part number: BM1, BM2 or BM3 + Signal option. Optional extras include: Potentiometer, Supply transformer, Power stack. UNITED AUTOMATION LIMITED 1 Southport Business Park Southport, PR8 4HQ, U.K. Page No 2 of 2 Issue 1 06/03/98 Tel (01704)-565713 Fax (01704)-569760 |
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