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Dragonfly/Butterfly Current Mode Ser vo Am plifiers fo r DC Br ush and Br ushless Motors with Trapez oidal Co mmutat io n in Extended Environmenta l Co nditio ns Installation Guide April 2008 (Ver.
Notice This guide is de livered subject to th e following conditions and re strictions: This guide con tains proprietary info rmation belonging to Elmo Motion Control Ltd. Such info rmation is supplied s olely for the purpos e of assistin g users of th e Dragonfly and Butterfly se rvo drives in their in stallation.
Contents Chapter 1: Safet y Informatio n ............................................................................................... 1-1 1.1 Warn ings ................................................................................................
4.2.4 External Volt age ................................................................................................ 4-2 4.2.5 External Resistor ............................................................................................... 4-3 4.
Chapter 1: Safety Information In order to achieve the optimum, safe operation of the Dragonfly and Butterfly servo- amplifiers, it is impe rative that you implemen t the safe ty procedures inc luded in this installation guide.
1.1 Warnings Cleaning after soldering To avoid the damage of the product' s acrylic coating the Dragonfly/Butte rfly must not be c leaned after s oldering by disso lving solvents and /or "water" cleaning process. For more details: http://www.
1.3 Directives and Standards The Dragonfly and Butterfly conform to the following industry safety standards: Safety Standard Item In compliance with MIL-STD-704 Aircraft, Electric Power C haracteristi.
1.5 Warranty Information The products covered in this manual are warranted to be free of defects in material and workmanship and conform to the specifications stated either within this document or in the product catalog description.
Cymba l Installa t ion Guide Introduction MAN-CYMI G (Ver. 1. 1 ) 2-1 Chapter 2: Introduction This Installation Guide is intended fo r design en gineers w ho are inte grating Elmo Motion Control Cymbal s ervo amplifiers in to a machine.
Cymba l Installa t ion Guide Introduction MAN-CYMI G (Ver. 1. 1 ) 2-2 2.3 Fault Protection Built-in protection again st possible f ault conditions, in cluding: • Shorts betwe en the outputs or be tw.
Chapter 3: Installation 3.1 Before You Begin 3.1.1 Site Requirements You can guarantee the safe operation of t he Dragonfly and Butterfly by ensuring that t hey are installed in an appropriate environment.
Max imu m DC Operat ing Vol tage Con tinuo us C u rrent (Am ps) DRA- X/ YY 3. Verify that the Dragonfly or Butterfly type is the one th at you ordered, and ensu re that the voltage meets your speci fic requirements.
3.3.2 Dragonfly Dimensions Figure 3-2: Dragonfly Dimensions 3.4 Mounting 3.4.1 Butterfly The Butterfly w as designed fo r mounting on a printed circuit board ( PCB). It is connected by 2mm pitch 0.51 mm square pins. When designing the Butterfly into a device, be sure to leave about 1 cm (0.
3.5 Integrating the Dragonfly and Butterfly on a PCB The Drag on fly an d Bu tte rfl y are designed to be mounted on a PCB, ei ther by soldering the pins directly to the PC B or by using su itable socket c onnectors . In both case s the fo llowing rules apply: 3.
3.5.2 Grounds and R eturns The “Returns” of the Dragonfly and Butterfly are structured internally in a star configuration. The returns in each functional block are listed below: Functional Block R et ur n P in Po we r PR (Power Return) Internal Switch Mode P.
3.6 Pin Functions The Dragonfly and Butterfly are PCB mounted analog servo drives. Their pinouts are described below. 3.6.1 Pinouts No. Pins Type Port Function Connector Location 2X11 J1 I/O connector.
3.6.2 Connector J1 Pin # Short Form Function Description 1 EN+ Enable + Positive voltage input of the “Amplifier Enable” function. To enable operation of the amplifier, the optocouple r must be energi zed by applying voltage between this pin (+) and pin J1/22 (-).
Pin # Short Form Function Description 14 ECLP External current limit peak External voltage scales down the rated value. Voltage range: 0 V to 3.75 V (3.
3.7 Dragonfly/Butterfly Connection Diagram Figure 3-3: Dragonfly /Butterfly Con nection Diagram 3.8 Evaluation Board and Cable Kit The same circuit board used for the Ocarina and Castanet is also available for evaluating the Dragonfly and Butterfly.
3.9 DC Power Supply The DC power supply can be at any voltage i n the range defined in the technical specif ications (th e Appendix of this guide). The supply source must comp ly with the safety aspec.
Figure 3-4: Detailed Dragonfly /Butterfly Internal Block Diagram Dragon fly/ Butterf ly Installation G uide Insta llation MAN-D RBUIG (Ver. 1. 1) 3-11.
3.10 Heat Dissipation 3.10.1 Butterfly The best way to dissipate heat from the Butterfly is to mount it so that its h eatsink face s up. For best results leave approximately 10 mm of space between the Butterfly's heatsink and any other assembl y.
Whi st le 100 Ser ies P ower D is s ipat io n 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 0. 5 1 1.5 2 2. 5 3 3. 5 4 4. 5 5 P e ak Curr ent (A) P o w er D i ss i pati on (W ) 85V DC 70V DC 50V DC 3.10.1.3 How to Use the Charts The charts above are based upon theoretical worst-case con ditions.
Chapter 4: Servo Control Operation 4.1 Current Command Input The Dragonfly and Bu tterfly have a sin gle differen tial input. The input ope rating voltage range is ± 3.75 V, meaning that a 3.75 V signal will result in a f ully rated peak current. The current limit circuits will override this signal if the peak duration exceeds 2.
4.2.2 Exte rnal Resistor Connect an external resistor between terminal J 1 /9 (ECLC) and terminal J 1 /8 (ECLRET). The resistor va lue is given by: 0 < RECLC < 36.4 K ( 1 /8 Watt) At RECLC greater than 36.4 K, the current limit will be internally clamped to the nominal value.
4.2.5 Exte rnal Resistor Connect an external resistor between terminal J 1 / 1 4 (ECLP) and terminal J 1 /8 (ECLRET). The resistor va lue is given by: 0 < R ECLP < 36.4 K (1/8 Watt) At RECLP greater than 36.4K, the current limit will be internally clamped to the nominal value.
Function Latch Option AOK SO1 SO2 SO3 1 0 Po wer up reset No Open collector Open collector Open collector Open collector 11 Commutation failure Yes Open collector Low Low Low * This indication can be used as a digita l input for activating an external shunt regulator.
Appendix: Specifications A.1 General Specifications A.1.1 Butterfly Feature Units 15/48 5/60 10/60 15/60 2.5/100 5/100 10/100 15/100 Minimum supply voltage VD C 1 1 11 20 No m i n a l s u p p l y v o .
A.1.2 D ragonfly Feature Units 3/60 2.5/100 Minim um s uppl y vol t age VDC 11 20 Nomin al su pply vo l tag e VD C 50 85 Maximum s u pply vo lt ag e VDC 59 95 Maximum continuous power output W 190 240.
A.3 Standards Compliance A.3.1 Q uality Assurance Specification Details ISO 9001:2000 Quality Management A.3.2 D esign Specification Description In compliance with MIL-STD-704 Aircraft, Electric Power.
A.3.4 EMC Specification Details In compliance with EN55011 Class A with EN61000-6-2: Immunity for industrial environ ment, according to: IEC61000-4-2 / criteria B IEC61000-4-3 / criteria A IEC61000-4-.
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