NMX-750, Power Factor Corrected Multiple Output, Forced Current Sharing FEATURES: • Forced current sharing for N +1 redundancy Remote sense on outputs #1 and 2 Universal ac input 0.99 typical power factor Dual converter design eliminates interaction between logic and auxiliary outputs Low ripple and noise on all outputs Dc power good and ac power fail signals True remote inhibit Monotonic turn-on and turn-off Redundancy: External OR-ing diodes and forced current sharing on output #1 provide “N+1” capability. Remote Sense (+S) compensates for additional 0.6 V diode voltage drop. When the current sharing terminal is connected between units, current SPECIFICATIONS: sharing remains within 10% of the unit’s full output current rating. INPUT Requires minimum load of 12.5 A on +5V. Ac Input: 90-264 Vac continuous range, 47 to 63 Hz. Internally ENVIRONMENTAL fused for 15 A. Thermal Protection: Shuts down power supply if overheated. Power Factor: 0.99 typical at full load. Meets EN61000-3-2 Class A. Automatic recovery. Inrush: Cold start ac current is less than 65 A at 115 Vac and Temperature Range: 0° to 50° C at full ratings. 130 A at 230 Vac. Limited by thermistor. Safety Agencies: Most models are approved to UL1950; CSA Brownout Protection: Holds regulation to 85 Vac. 22.2 #234; IEC 950 and TÜV EN60950, Class 1 SELV., CE 72/23/ EEC/93/68EEC (low voltage directive). Holdup Time: 20 ms minimum after removal of power at full load. Efficiency: 75% typical. Conducted RFI: Meets FCC Part 15, Class A; EN55022 Class A. Ac Power Fail: Provides TTL “0” 5 ms before output voltage Output Isolation: Isolated from ground 50 Vdc. goes out of regulation band upon loss of ac power. Reverse Voltage: Protected against reverse voltage up to OUTPUT supply current rating. Adjustability: Outputs #1 and 2 user adjustable ±5% minimum. Cooling: Self cooled with internal ball-bearing fans. Output #3 tracks #2; initial accuracy ±4%. Output #4 user adjustable ±5% minimum, or +5% only if voltage is 5.2 V. OPTIONS: Line & Load Reg: Outputs #1, 2, and 4 hold ±1% over ac input Option “B”, Barrier Strip: Provides auxiliary output connec- range and 0 to 100% load change. Output #3 requires 20% tions on #6-32 terminal screws with 3/8” centers. minimum load on outputs #2 and 3 to hold ±4%. Ripple & Noise: Less than 1% p-p or 100 mV, whichever is greater. AC INPUT(90-264 VAC Continuous Range) Remote Sense (Outputs #1 and 2): Compensates for 250 mV FUNCTION 115 VAC 230 VAC CONNECTOR total line drop. Open sense lead protection. (See Redundancy.) Te B1-(L) L1 in Lp ine Barrier stri Temperature Coefficient (Outputs #1, 2, and 4): 0.02% per Tl B1-(N) N2 eutraLs ine #6-32 screws, 3/8" center degree C. Td B1-(GND)Sd afety Groun Safety Groun Stability: 0.1% over 8 hours after 30 minutes warm-up. DC OUTPUT Transient Response (Outputs #1, 2, and 4): Output voltage FUNCTION LOCATION NOTES CONNECTOR returns to within 1% in less than 500 µs for a 50% load change. OV utput #1Tt erminal marked +Ms ain outpu Bus bar Peak transient does not exceed 5%. T) erminal marked -VRs tn (common #1/4-20 screw Overload Protection: All outputs are protected against overload O2 utput #2 J6-3, 11, 4, 1 AMP#770974-1 mates and short circuit. Automatic recovery upon removal of fault. J) 6-5, 13, 6, 14, 7, 15R1 tn (common with connector 770583- Overvoltage Protection (Outputs #1 and 2): Protects load O6 utput #3 J6-8, 1 with sockets #171639-1 against power supply induced over voltage. Trip point is factory J) 6-5, 13, 6, 14, 7, 15R) tn (common (AWG #20 to #16 set so that output voltage cannot exceed 136% of nominal. O9 utput #4Jt 6-1, (+) Floating Outpu Peak Output Current: Dual current ratings define continuous Jt 6-2, 10 (-) Floating Outpu and peak currents. The peak current shown can be delivered for STATUS AND CONTROL a maximum period of 30 seconds. FUNCTION LOCATION NOTES CONNECTOR Remote Inhibit: Contact closure to the negative sense line or a R5 emote Sense Je 1-Oe utput #1 Sens AMP MTA typ TTL level “0” turns off dc outputs. Jn 1-4On utput #1 Sense Rt #640456-5 pi Dc Power Good: Provides a TTL “1” when output #1 is above D3 C Power GoodJn 1-R) eference to commo header (locking 4.6 V nominal. I2 nhibit Js 1- when #1 Sense Rtn i C1 urrent Share Jd 1- Terminate R1 emote Sense Je 3-Oe utput #2 Sens AMP MTA typ Jn 1-4On utput #2 Sense Rt #640456-4 pi A3 c Power FailJm 3-R) eference to commo header (locking Condor D.C. Power Supplies, Inc., 2311 Statham Parkway, Oxnard, CA 93033 800-235-5929 • 805-486-4565  FAX 805-487-8911  www.condorpower.com 90 NMX-750, Power Factor Corrected Multiple Output, Forced Current Sharing Commercial Model Power Out Output No. Output Output Maximum Total Regulation (A) N0 MX-754-1205 71 5 +A 5V 1% 20 1 2V+k 12 1% 2/20 A p 1 3V-A 12 1% 0 5 4V5A .2 5% 1 N0 MX-754-1212 71 5 +A 5V 1% 20 1 2V+k 12 1% 2/20 A p 1 3V-A 12 1% 0 5 4V1A 2 5% 1 N0 MX-754-1224 71 5 +A 5V 1% 20 1 2V+k 12 1% 2/20 A p 1 3V-A 12 1% 0 5 4V2A 4 3% 1 Note: Output #3 requires 20% minimum load on outputs #2 and 3 to hold +/-4%. NMX-750 MECHANICAL SPECIFICATIONS: Dimensions: Inches Millimeters Condor D.C. Power Supplies, Inc., 2311 Statham Parkway, Oxnard, CA 93033 800-235-5929  805-486-4565  FAX 805-487-8911  www.condorpower.com 91