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■ /c68/c101/c115/c99/c114/c105/c112/c116/c105/c111/c110/c32 ■ /c77/c111/c100/c101/c108/c32/c69/c110/c99/c111/c100/c105/c110/c103 /UNI2027/c73/c110/c100/c117/c115/c116/c114/c105/c97/c108/c32/c99/c111/c110/c116/c114/c111/c108/c32/c115/c121/c115/c116/c101/c109 /UNI2027/c83/c101/c109/c105/c99/c111/c110/c100/c117/c99/c116/c111/c114/c32/c102/c97/c98/c114/c105/c99/c97/c116/c105/c111/c110/c32/c101/c113/c117/c105/c112/c109/c101/c110/c116 /UNI2027/c70/c97/c99/c116/c111/c114/c121/c32/c97/c117/c116/c111/c109/c97/c116/c105/c111/c110 /UNI2027/c69/c108/c101/c99/c116/c114/c111/c45/c109/c101/c99/c104/c97/c110/c105/c99/c97/c108/c32/c97/c112/c112/c97/c114/c97/c116/c117/c115 ■ /c70/c101/c97/c116/c117/c114/c101/c115 ■ /c65/c112/c112/c108/c105/c99/c97/c116/c105/c111/c110/c115/c32 File Name:DBUF20-24-SPEC 2019-12-19 /c68/c73/c78/c32/c114/c97/c105/c108/c32/c66/c117/c102/c102/c101/c114/c32/c77/c111/c100/c117/c108/c101 /c68/c66/c85/c70 /UNI2027/c66/c117/c102/c102/c101/c114/c105/c110/c103/c32/c119/c105/c116/c104/c32/c101/c108/c101/c99/c116/c114/c111/c108/c121/c116/c105/c99/c32/c99/c97/c112/c97/c99/c105/c116/c111/c114/c115/c32/c105/c110/c115/c116/c101/c97/c100/c32/c111/c102/c32/c108/c101/c97/c100/c32/c97/c99/c105/c100/c32/c98/c97/c116/c116/c101/c114/c105/c101/c115 /UNI2027/c84/c121/c112/c101/c32/c98/c117/c102/c102/c101/c114/c105/c110/c103/c32/c116/c105/c109/c101/c32/c111/c102/c32/c51/c53/c48/c109/c115/c32/c64/c50/c50/c86/c100/c99/c47/c50/c48/c65 /UNI2027/c66/c117/c102/c102/c101/c114/c32/c109/c111/c100/c101/c32/c115/c101/c108/c101/c99/c116/c97/c98/c108/c101/c32/c32/c98/c121/c32/c115/c119/c105/c116/c99/c104/c58 /c32/c32/c32/c32/c32/c32/c32/c32/c32/c70/c105/c120/c101/c100/c32/c109/c111/c100/c101/c32/c97/c116/c32/c50/c50/c86/c100/c99 /c32/c32/c32/c32/c32/c32/c32/c32/c32/c68/c121/c110/c97/c109/c105/c99/c32/c109/c111/c100/c101/c32/c102/c111/c114/c32/c86/c105/c110/c45/c49/c86/c100/c99 /UNI2027/c76/c69/c68/c32/c105/c110/c100/c105/c99/c97/c116/c111/c114/c32/c102/c111/c114/c32/c115/c105/c103/c110/c97/c108/c32/c115/c116/c97/c116/c117/c115 /UNI2027/c83/c117/c112/c112/c111/c114/c116/c115/c32/c112/c97/c114/c97/c108/c108/c101/c108/c32/c99/c111/c110/c110/c101/c99/c116/c105/c111/c110/c32/c116/c111/c32/c101/c120/c116/c101/c110/c100/c32/c98/c117/c102/c102/c101/c114/c105/c110/c103/c32/c116/c105/c109/c101 /UNI2027/c67/c111/c111/c108/c105/c110/c103/c32/c98/c121/c32/c102/c114/c101/c101/c32/c97/c105/c114/c32/c99/c111/c110/c118/c101/c99/c116/c105/c111/c110 /UNI2027/c45/c50/c53/c126/c43/c55/c53 /c119/c105/c100/c101/c32/c111/c112/c101/c114/c97/c116/c105/c110/c103/c32/c116/c101/c109/c112/c101/c114/c97/c116/c117/c114/c101℃/c32 /UNI2027/c51/c32/c121/c101/c97/c114/c115/c32/c119/c97/c114/c114/c97/c110/c116/c121 /c32/c50/c48/c32/c45/c32/c50/c52 /c79/c117/c116/c112/c117/c116/c32/c67/c117/c114/c114/c101/c110/c116/c32/c40/c50/c48/c65/c41 /c79/c112/c101/c114/c97/c116/c105/c111/c110/c97/c108/c32/c86/c111/c108/c116/c97/c103/c101 UL62368-1 The DBUF20-24 buffer module is a supplementary device for regulated DC 24V power supplies The . buffer module utilizes maintenance free electrolytic capacitors to store energy thus eliminates the need- , of periodic replacement as compared to costlier batteries which also have shorter functional life span. The DBUF20-24 comes with comprehensive protection features like over voltage over current and short, circuit protections Buffer modules can be connected in parallel to increase the output ampacity or the. hold up time-. IEC62368-1 D 0-24BUF224V/20A DIN Rail Type Buffer Module
DC NORMAL VOLTAGEOPERATING DC NORMAL OPERATING VOLTAGE OVER LOAD SHORT CIRCUIT DC VOLTAGE RANGEOPERATING DBUF20-24 23~30Vdc 100mA Max. Buffering starts if terminal voltage falls below 22VdcFix 22Vdc(Default) 31 37 5V only,shut down o p voltage~. / 2V V i n2d c 1 V d c/- (Refer to Buffering Curve at 22Vdc) 24Vdc 22-2 Vdc9 105% 125% rated output power at buffer mode~ SELECTABLE BY SWITCH Vin-1Vdc Buffering starts if terminal voltage is decreased by > 1Vdc OUTPUT CURRENT ax.(m ) 20A BUFFER TIME REVERSE POLARITY PROTECTION Supply Voltage(+Vs) 900m Max.A 200mVp-p TVS FOR SIGNALS (max.) By internal MOSFET no damage recovers automatically after fault condition removed,, 10 35Vdc /10mA(Connected to +V or external voltage)~ RIPPLE & NOISE (max.) Note.2 Protection type Shut down o p voltage re power on to recover:/ , - Protection type Shut down o p voltage re power on to recover:/ , - 35V Refer to Typical Application Notes(Page 6) Charged ready: V(R)>+Vs - 2Vdc; Unready: V(R)<1Vdc 15s Typ. Typ. Min. 20A 10A 0.1A 350ms 250ms 700ms 500ms 45s 30s Inhibit ()I + < : ; + > :Vs - V(I) 6Vdc Buffer module ON Vs - V(I) 10Vdc Buffer module OFF 35Vdc /10mA Max. Ready(R) 35Vdc /4mA Max. Buffering (B) 35Vdc /10mA Max. LED STATUS DISPLAY ON Ready OFF Discharged 1Hz Charging 10Hz Buffering SIGNALS File Name:DBUF20-24-SPEC 2019-12-19 25s Max. Output current CONTROL Buffering: V(B)>+Vs - 2Vdc; Other mode: V(B)<1Vdc Flashing D 0-24BUF224V/20A DIN Rail Type Buffer Module
-~ +℃25 75 ” ”) (Refer to Derating Curve 5 ~ 95% RH non-condensing -~ +25 80 ℃ 5000 Ⅱmeters /OVC IEC60068-2-27,30G (300m/ S²) for a duration of time per direction,2 times in total18ms,1 IP OP KV c; Signals- KV c/ - :. :.FG 2 2 d FG 2 2 d IEC62368-1,UL62368-1 approved Parameter Parameter ESD Radiated EFT / Burst Surge Conducted Magnetic Field Conducted Radiated Harmonic Current Standard Standard EN55032 EN55032 EN61000-4-2 EN61000-4-3 EN61000-4-4 EN61000-4-5 EN61000-4-6 EN61000-4-8 Test Level / Note Test Level / Note Class B Class B ----- EN55035, EN61000-6-2 Level 4, 15KV air ; Level 3, 8KV contact; criteria A Level 3, 10V/m ; criteria A Level 4, 30A/m ; criteria A Level 3, 10V ; criteria A Level 3, 2KV ; criteria A Voltage Flicker ----- ----- Level 3, 1KV/Line-Line ;Level 3, 2KV/Line-Line-FG ;criteria A ----- MTBF DIMENSIONOTHERS NOTE PACKING /c49/c46/c32/c65/c108/c108/c32/c112/c97/c114/c97/c109/c101/c116/c101/c114/c115/c32/c78/c79/c84/c32/c115/c112/c101/c99/c105/c97/c108/c108/c121/c32/c109/c101/c110/c116/c105/c111/c110/c101/c100/c32/c97/c114/c101/c32/c109/c101/c97/c115/c117/c114/c101/c100/c32/c97/c116/c32/c110/c111/c114/c109/c97/c108/c32/c105/c110/c112/c117/c116/c44/c32/c114/c97/c116/c101/c100/c32/c108/c111/c97/c100/c32/c97/c110/c100/c32/c50/c53 /c32/c111/c102/c32/c97/c109/c98/c105/c101/c110/c116/c32/c116/c101/c109/c112/c101/c114/c97/c116/c117/c114/c101/c46/c32℃ /c50/c46/c32/c82/c105/c112/c112/c108/c101/c32/c38/c32/c110/c111/c105/c115/c101/c32/c97/c114/c101/c32/c109/c101/c97/c115/c117/c114/c101/c100/c32/c97/c116/c32/c50/c48/c77/c72/c122/c32/c111/c102/c32/c98/c97/c110/c100/c119/c105/c100/c116/c104/c32/c98/c121/c32/c117/c115/c105/c110/c103/c32/c97/c32/c49/c50/c34/c32/c116/c119/c105/c115/c116/c101/c100/c32/c112/c97/c105/c114/c45/c119/c105/c114/c101/c32/c116/c101/c114/c109/c105/c110/c97/c116/c101/c100/c32/c119/c105/c116/c104/c32/c97/c32/c48/c46/c49 /c102/c32/c38/c32/c52/c55 /c102/c32μμ /c32/c32/c32/c32/c112/c97/c114/c97/c108/c108/c101/c108/c32/c99/c97/c112/c97/c99/c105/c116/c111/c114/c46 /c51/c46/c32/c84/c104/c101/c32/c97/c109/c98/c105/c101/c110/c116/c32/c116/c101/c109/c112/c101/c114/c97/c116/c117/c114/c101/c32/c100/c101/c114/c97/c116/c105/c110/c103/c32/c111/c102/c32/c51/c46/c53 /c47/c49/c48/c48/c48/c109/c32/c119/c105/c116/c104/c32/c102/c97/c110/c108/c101/c115/c115/c32/c109/c111/c100/c101/c108/c115/c32/c97/c110/c100/c32/c111/c102/c32/c53 /c47/c49/c48/c48/c48/c109/c32/c119/c105/c116/c104/c32/c102/c97/c110/c32/c109/c111/c100/c101/c108/c115/c32/c102/c111/c114/c32/c111/c112/c101/c114/c97/c116/c105/c110/c103/c32℃℃ /c32/c32/c32/c32/c97/c108/c116/c105/c116/c117/c100/c101/c32/c104/c105/c103/c104/c101/c114/c32/c116/c104/c97/c110/c32/c50/c48/c48/c48/c109/c40/c54/c53/c48/c48/c102/c116/c41/c46 /c52/c46/c32/c84/c104/c101/c32/c112/c111/c119/c101/c114/c32/c115/c117/c112/c112/c108/c121/c32/c105/c115/c32/c99/c111/c110/c115/c105/c100/c101/c114/c101/c100/c32/c97/c115/c32/c97/c110/c32/c105/c110/c100/c101/c112/c101/c110/c100/c101/c110/c116/c32/c117/c110/c105/c116/c44/c32/c98/c117/c116/c32/c116/c104/c101/c32/c102/c105/c110/c97/c108/c32/c101/c113/c117/c105/c112/c109/c101/c110/c116/c32/c115/c116/c105/c108/c108/c32/c110/c101/c101/c100/c32/c116/c111/c32/c114/c101/c45/c99/c111/c110/c102/c105/c114/c109/c32/c116/c104/c97/c116/c32/c116/c104/c101/c32/c119/c104/c111/c108/c101/c32/c115/c121/c115/c116/c101/c109 /c32/c32/c32/c32/c99/c111/c109/c112/c108/c105/c101/c115/c32/c119/c105/c116/c104/c32/c116/c104/c101/c32/c69/c77/c67/c32/c100/c105/c114/c101/c99/c116/c105/c118/c101/c115/c46/c32/c70/c111/c114/c32/c103/c117/c105/c100/c97/c110/c99/c101/c32/c111/c110/c32/c104/c111/c119/c32/c116/c111/c32/c112/c101/c114/c102/c111/c114/c109/c32/c116/c104/c101/c115/c101/c32/c69/c77/c67/c32/c116/c101/c115/c116/c115/c44/c32/c112/c108/c101/c97/c115/c101/c32/c114/c101/c102/c101/c114/c32/c116/c111/c32/c147/c69/c77/c73/c32/c116/c101/c115/c116/c105/c110/c103/c32/c111/c102/c32/c99/c111/c109/c112/c111/c110/c101/c110/c116 /c32/c32/c32/c32/c112/c111/c119/c101/c114/c32/c115/c117/c112/c112/c108/c105/c101/c115/c46/c148/c32/c40/c97/c115/c32/c97/c118/c97/c105/c108/c97/c98/c108/c101/c32/c111/c110/c32/c104/c116/c116/c112/c58/c47/c47/c119/c119/c119/c46/c109/c101/c97/c110/c119/c101/c108/c108/c46/c99/c111/c109/c41 SAFETY STANDARDS WORKING TEMP. WORKING HUMIDITY STORAGE TEMP. TEMP. COEFFICIENT VIBRATION WITHSTAND VOLTAGE EMC IMMUNITY EMC EMISSION SHOCK TESTENVIRONMENT SAFETY & EMC (Note.4) OPERATING ALTITUDE Note.3 File Name:DBUF20-24-SPEC 2019-12-19 164 84K hrs min. MIL-HDBK-217F (25. ℃) ; 513.46K hrs min. Telcordia TR/SR-332 (Bellcore) (25 ) ℃ 1.062Kg; 12pcs/12.8Kg/0.74CUFT 1 97K hrs min. MIL-HDBK-217F (4 (407 0 ; 255.89K hrs min. Telcordia TR/SR-332 (Bellcore) 0. ℃℃)) Component: 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes; Mounting clip: Compliance to IEC60068-2-6 IP OP-FG Signals-FG >100M Ohms / 500Vdc / 25 / 70% RH/, : ℃ISOLATION RESISTANCE D 0-24BUF224V/20A DIN Rail Type Buffer Module
Buffering time at 22Vdc, typ.(s) LOAD (%) Buffering CurveDerating Curve Block Diagram AMBIENT TEMPERATURE ( )℃ 01 02 0 30 40 50 60 70 75-25 -20 -10 100 (VERTICAL) File Name:DBUF20-24-SPEC 2019-12-19 Reverse- Polarity Protection Input Filter Voltage Monitor Boost Converter & Inrush Limiter LED Display Status FG +Vs Inhibit Ready Buffering Buffer Voltage Selector Condition Monitor & Protection Opto-coupler Opto-coupler Opto-coupler Energy torageS apacitorC Buck Converter 0.35 0.7 1.05 1.4 51 0 LOAD (A) 0.1 D 0-24BUF2 24V/20A DIN Rail Type Buffer Module
- Operating Diagram 3. Signal Schematics 1. User Elements LED Indicator Status: LED :OFF Capacitors are discharged. LED .ON Capacitors are fully charged: LED Flashing slowly apacitors are getting charged(1Hz): .C LED Flashing quickly 10Hz): apacitors are getting discharged.( C Back-up Threshold Voltage Selectable by Switch: Option 1: Fixed mode ( inSwitch Fix 22Vdc ) The unit switches to buffer mode as soon as the voltage falls below 22V . dc Option 2: mode ( in -Dynamic Switch V n 1Vdc i) Unit switches to buffer mode when input voltage decreases by 1V . dc Signal Connector: -Buffering, ng .Buffer : V(B)>+Vs - 2Vdc; Other mode: V(B)<1Vdci -Ready : V(R)>+Vs - 2Vdc; : V(R)<1Vdc, Unready .Charged ready -Inhibit,+ : .Vs - V(I)<6Vdc Buffer module ON; +Vs - V(I)>10Vdc: Buffer module OFF Vac (Buffer Module) E-cap bank Vout Ready Buffering Inhibit LED 1Hz 10Hz Low Low High High Low PSU Hold-up Time t t t t t t t t Standby Mode Buffer ModeCharging Mode Vout +Vs I R B Inhibit Ready Buffering 5.1V +Vs:10-35Vdc File Name:DBUF20-24-SPEC 2019-12-19 Note Factory setting is fixed mode:. D 0-24BUF2 (+Vs can connected to DBUF20 “+V” or external voltage source,Please refer to “Typical Application Notes” ) StatusReady Charging Discharging R B +Vs +Vs:Supply Voltage Fix 22Vdc Vin-1Vdc I:Inhibit R:Ready B:Buffering +V +V I 24V/20A DIN Rail Type Buffer Module
- General wiring diagram 3.Paralleling of buffer units Typical Application Notes DC OK +V ADJ. ++ -- LN + - Load L N FG Optional DC OK +V ADJ. ++ -- LN + - Load L N FG Optional 2. Signals supplied from an external voltage BufferingRelay, Lamp or SignalReadyRelay, Lamp or Signal DC OK +V ADJ. ++ -- LN L N FG Optional File Name:DBUF20-24-SPEC 2019-12-19 Status Ready Charging Discharging R B +Vs I:Inhibit R:Ready B:Buffering +Vs:Supply Voltage +V +V -V I PSU Status Ready Charging Discharging R B +Vs I:Inhibit R:Ready B:Buffering +Vs:Supply Voltage I Status Ready Charging Discharging R B +Vs I:Inhibit R:Ready B:Buffering +Vs:Supply Voltage I Status Ready Charging Discharging R B +Vs I:Inhibit R:Ready B:Buffering +Vs:Supply Voltage Fix 22Vdc Vin-1Vdc I DBUF20-24 PSU DBUF20-24 DBUF20-24 PSU DBUF20-24 Inhibit BufferingRelay, Lamp or SignalReadyRelay, Lamp or Signal Inhibit External Voltage Source D 0-24BUF2 -V+V +V -V -V+V +V -V -V+V +V -V Fix 22Vdc Vin-1Vdc Fix 22Vdc Vin-1Vdc Fix 22Vdc Vin-1Vdc 24V/20A DIN Rail Type Buffer Module
ADMISSIBLE DIN-RAIL:TS35/7.5 or TS35/15 (For reference only. Not included with unit.) This series fits DIN rail TS35/7.5 or TS35/15. For installation details, please refer to the Instruction manual. Installation Manual Please refer to : http://www.meanwell.com/manual.html 125.2 114.9 Case No. 979E Unit:mm 12 3 1 2 3 4 File Name:DBUF20-24-SPEC 2019-12-19 StatusReady Charging Discharging R B +Vs I:Inhibit R:Ready B:Buffering +Vs:Supply Voltage Fix 22Vdc Vin-1Vdc +V +V -V I TB2 TB1 D 0-24BUF2 Terminal Pin No. Assignment (TB1) Terminal Pin No. Assignment (TB2) Pin No. Assignment Ready (R) FG Inhibit (I) Buffering (B) Pin No. 1,2 3,4 Assignment DC +V
5 Supply Voltage (+Vs)
24V/20A DIN Rail Type Buffer Module