8 Sicherheits-Vorschriften Sicherungen. Die Zulassungsbestimmungen der Sicherheitsbehörden machen es erforderlich, daß die Module abgesichert werden. Die Sicherung muß in die +Input Leitung geschaltet werden, nicht in die –Input Leitung, da eine Unterbrechung der –Input Leitung bewirken würde, daß die GateAnschlüsse auf das Spannungspotential der +Input Leitung ansteigen würden. Dies könnte angeschlossene Module oder Geräte beschädigen. Sprechen Sie bitte die Vicor Applikationsabteilung an, dort erhalten Sie Daten zu den richtigen Sicherungen. Erdung. Um den IEC 950 Klasse I Erdungsforderungen zu entsprechen, muß die Grundplatte an Erde/Chassis angeschlossen werden, wenn der Nutzer die Wandler-Grundplatte berühren kann. Verwenden Sie dieselbe Kabelstärke wie die für das Eingangskabel Ihres Wandlers angegebene. Siehe Tabelle Seite 3. Betriebstemperatur. Bei Mega Modulen darf die Außenseite der Module eine Temperatur von 85 Grad Celsius nicht überschreiten, bei Mega Modulen Jr. liegt die Grenze bei 100 Grad Celsius. Weitere Informationen. Das Vicor Applications Manual und Produkt-Datenblätter enthalten ausführliche Informationen zu Mega Modulen und Mega Modulen Jr.. Fordern Sie bitte Unterlagen bei Vicor oder Ihrer nächsten Vicor Vertretung an. Visit the Vicor website at: www.vicorpower.com Vicor Corporation Andover, MA, U.S.A Tel: 978-470-2900 Fax: 978-475-6715 Chicago, IL Tel: 630-769-8780 Fax: 630-769-8782 Sunnyvale, CA Tel: 408-522-5280 Fax: 408-774-5555 Vicor France Tel: +33-1-3452-1830 Fax: +33-1-3452-2830 Vicor Italy Tel: +39-02-2247-2326 Fax: +39-02-2247-3166 Vicor Hong Kong Tel: +852-2956-1782 Fax: +852-2956-0782 Vicor Germany Tel: +49-89-962-439-0 Fax: +49-89-962-439-39 Vicor U.K. Tel: +44-1276-678-222 Fax: +44-1276-681-269 Vicor Japan Tel: +81-3-5487-3880 Fax: +81-3-5487-3885 Printed in U.S.A. Pt. No. 24712 Rev 5 5/04/100M MegaMod DC-DC Converter Family Installation and Application Notes Functional and Mechanical Layout Product Description MegaMod and MegaMod Jr. DC-DC converters incorporate one, two, or three Vicor VI-200 or VI-J00 MiniMod converters in a modular package to provide a chassis-mounted alternative to board-mounted power supplies. MegaMods offer 50–600 W of power from 1–3 outputs. MegaMod Jr.’s offer a total of 25–300 W from 1–3 outputs. Each output may be independently sensed, adjusted, and sequenced using the procedures outlined for VI-200 and VI-J00 converters in the Vicor Applications Manual. 2 MegaMod Family Single Output LJ-Series 25 –100 W (Jr. Module) L-Series 50 – 200 W M-Series 100 – 400 W N-Series 300 – 600 W Dual Output PJ-Series 50 – 200 W (Jr. Module) P-Series 100 – 400 W Q-Series 150 – 600 W Triple Output RJ-Series 75 – 300 W (Jr. Module) R-Series 150 – 600 W Materials ■ ■ ■ ■ End Caps: Lexan-920 polycarbonate (UL94V-0) High-Power Terminals: CD-110 copper with electro-tin plate Low-Power Terminals: FR-4, 4 oz. copper with tin plate Case: 6063-T5 aluminum (Case is electrically isolated from input and output.) 3 Installation and Application Notes Fusing. Safety agency conditions of acceptability require module input fusing. The fuse should be inserted in the +Input lead, not the –Input lead, since opening the –Input lead will cause the gate terminals to rise to the voltage of the +Input lead, which may damage connected modules or devices. Consult the Vicor Application Engineering Department for proper fuse values. Grounding. If the converter baseplate is accessible to the operator, ground the baseplate to earth/chassis ground. Use the same wire gauge as that specified for your converter’s input wire, below. Input Wire Gauge. Calculate the input current for MegaMods and MegaMod Jr.’s as follows and use the recommended input wire gauge. ■ IIN ■ = POUT / (η x VLL) POUT = output power η = efficiency = 0.8 VLL = low line voltage Example: IIN = 300 / (0.8 x 42) = 8.93A Use a #16 input wire. Input Current Input Wire Gauge 16.5 A–26.1 A 10.4 A–16.4 A 6.6 A–10.3 A 4.1 A–6.5 A 2.6 A–4.0 A 0 A–2.6 A #12 #14 #16 #18 #20 #22 Input Source Impedance. The converter should be connected to an input source that exhibits low AC impedance. If source impedance is questionable, mount a small electrolytic capacitor close to the module voltage input pins. This will restore low AC impedance while avoiding the potential resonance associated with “high-Q” film capacitors. The minimum value of the capacitor, in microfarads, should be C(μF) = 400 ÷ VIN minimum. Example: VIN minimum for a VI-260-CV module is 200 V. The minimum capacitance would be 400 ÷ 200 = 2 μF. (continued on page 6) 4 Functional and Mechanical Layout These drawings show MegaMods (full size). Input and output configurations for Jr. modules (half size) are the same where indicated. Where dimensions differ for Jr. modules, the Jr. measurements are in orange. Inputs L- and LJ-Series 0.16 (4,1) 1 Mounting Information Use #6 machine hardware torqued to 5-7 in-lbs. 4 0.19 TYP. (4,8) TOP V 2.76 TYP. (70,1) 5.52 (140,2) P- and PJ-Series M-Series 0.19 (4,8) 1 1 2 Outputs Output #1 A –Output B –Sense* C Trim* D +Sense* E +Output 2 2.26 (57,4) 3 5 2.26 (57,4) 6 MEGA MODULE 3 DC-DC CONVERTER 5 4 4 TOP V R- and RJ-Series Q-Series N-Series 0.19 (4,8) 1 1 1 2 2 3 3 5 Output #3 L –Output M –Sense* N Trim* P +Sense* Q +Output MEGA MODULE DC-DC CONVERTER 3 HALF SIZE: 1.60 (40,6) Inputs 1 –Input 2 Gate Out #1 3 Gate In #1 4 +Input 5 Gate Out #2 6 Gate In #2 7 Gate Out #3 8 Gate In #3 Output #2 F –Output G –Sense* H Trim* J +Sense* K +Output 2 2.18 (55,4) 2.26 (57,4) 2 MEGA MODULE DC-DC CONVERTER 3 6.94 (176,3) 6 7 7 8 8 7 2.26 (57,4) 4 4 4 TOP VIEW 5 Ref. Drawing: 10874 Outputs JR. MODULE: 2.58 (65,5) 4.90 (124,5) TYP. 0.53 TYP. (13,5) SER. NO. L- and LJ-Series SIDE VIEW ø.150 (ø3,81) THRU C'BORE ø.250 (ø6,35) X .170 (4,32) DEEP All Models A B C R D 2,50 TYP. (63,5) BASEPLATE (TYP.) E 0.62 VIEW (15,7) TYP. * For units with BatMods 3.20 HALF SIZE: (81,3) M-Series –Sense = IMON Trim = ITRIM +Sense = VTRIM P- and PJ-Series A A B B R C C D D E F 4.90 (124,5) TYP. G H E J K 0.25 TYP. (6,4) VIEW W TYP. N-Series Q-Series A R- and RJ-Series C A A B B B C C D D D E F G 7.32 TYP. (185,9) H J E K L F M G N H E P J K Q 6 (continued from page 3) Input Transients. Do not exceed the converter’s transient input voltage rating. Vicor VI-IAM Input Attenuator Modules or surge suppressors, in combination with appropriate filtering, should be used in applications where source transients may be induced by load changes, blown fuses, etc. NOTE: On any converter module with a high line rating in excess of 250 Vdc, do not let the rate of change of input voltage exceed 10 V/μs for any input voltage change in excess of 250 V. Terminal Connection Assembly. The drawing below illustrates the assembly of parts for proper power terminal connections. Please consult the table for the recommended torque level for each screw size. SCREW LUG HELICAL LOCKWASHER TERMINAL NUT Ref. Drawing: 10875 Terminal and Product Model Terminal Style Screw Size Recommended Torque PCB 8-32 UNC 10 in-lb (1.1 N-m) L-, P-, R-, LJ-, PJ- & RJ-Series PCB 8-32 UNC 10 in-lb (1.1 N-m) M- & N-Series Metal 1/4-20 UNC 18 in-lb (2.0 N-m) Q-Series PCB Metal 8-32 UNC 1/4-20 UNC 10 in-lb (1.1 N-m) 18 in-lb (2.0 N-m) Supervisory All models Sized to accept AMP Faston® insulated receptacle #2-520184-2 –Input, +Input All models –Output, +Output 7 Output Wire Gauge. Use the output wire gauge that corresponds to the output current of your converter, below: 105 A–160 A : #4 66 A–104 A : #6 41 A–65 A : #8 26 A–40 A : #10 16 A–25 A : #12 11 A–15 A : #14 7 A–10 A : #16 4 A–6 A : #18 0 A–3 A : #20 Output Voltage Trimming. Do not trim the outputs higher than 110% of their nominal output voltage. When an output is trimmed up, do not exceed its maximum rated output power. Operating Temperature. Do not allow the baseplate of the module to exceed 85°C for MegaMods or 100°C for MegaMod Jr.’s. The mounting interface area should be flat within 0.005", free of burrs, and coated with thermal compound (Wakefield Engineering Type 120 or equivalent, or a thermal pad). Depending on the power level and ambient temperature, additional cooling measures may be required. Note: For configurations using three 12 V input (75 W) or 24 V input (150 W) modules and operating at ambient temperatures in excess of 50°C, please consult Vicor’s Applications Engineering Department. For More Information The Vicor Applications Manual and product data sheets contain complete information about MegaMods and MegaMod Jr.’s. To receive literature or to consult an applications engineer about installation or operation of these products, contact your nearest Vicor office. (See page 8.) Vicor’s Applications Manual is also available on-line at: vicorpower.com (Bitte lesen Sie die Sicherheits-Vorschriften auf Seite 8.) “AMP” and “Faston” are registered trademarks of AMP, Incorporated, Harrisburg, PA.