NMX-350 Power Factor Corrected
Multiple Output, Forced Current Sharing
FEATURES:
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•
•
•
Option V
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•
•
•
Forced current sharing for N +1 redundancy
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
Option E
SPECIFICATIONS:
INPUT
Ac Input:
90-264 Vac continuous range, 47 to 63 Hz. Internally
fused for 7 A.
Power Factor:
0.99 typical at full load.
Meets EN61000-3-2 Class A.
Inrush:
Cold start ac current is less than 30 A at 115 Vac and 60
A at 230 Vac. Limited by thermistor.
Brownout Protection:
Holds regulation to 85 Vac.
Holdup Time:
20 ms minimum after removal of power at full load.
Efficiency:
75% typical.
Ac Power Fail:
Provides TTL “0” 5 ms before output voltage
goes out of regulation band upon loss of ac power.
OUTPUT
Adjustability:
Outputs #1 and 2 user adjustable ±5% minimum.
Output #3 tracks #2; initial accuracy ±4%. Output #4 user
adjustable ±5% minimum, or +5% only if voltage is 5.2 V.
Line & Load Reg:
Outputs #1, 2, and 4 hold ±1% over ac input
range and 0 to 100% load change. Output #3 requires 20%
minimum load on outputs #2 and 3 to hold ±4%.
Ripple & Noise:
Less than 1% p-p or 100 mV, whichever is
greater.
Remote Sense (Output #1):
Compensates for 250 mV total line
drop. Open sense lead protection.
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
sharing remains within 10% of the unit’s full output current rating.
Temperature Coefficient (Outputs #1, 2, and 4):
0.02% per
degree C.
Stability:
0.1% over 8 hours after 30 minutes warm-up.
Transient Response (Outputs #1, 2, and 4):
Output voltage
returns to within 1% in less than 500 µs for a 50% load change.
Peak transient does not exceed 5%.
Overload Protection:
All outputs are protected against overload and
short circuit. Automatic recovery upon removal of fault.
Overvoltage Protection (Outputs #1 and 2):
Protects load
against power supply induced overvoltage. Trip point is factory
set so that output voltage cannot exceed 136% of nominal.
Peak Output Current:
Dual current ratings define continuous
and peak currents. The peak current shown can be delivered for
a maximum period of 30 seconds.
Remote Inhibit:
Contact closure to the negative sense line or a
TTL level “0” turns off dc outputs.
Dc Power Good:
Provides a TTL “1” open collector when
output #1 is above 4.6 V nominal.
Reverse Voltage:
Protected against reverse voltage up to
supply current rating.
ENVIRONMENTAL
Thermal Protection:
Shuts down power supply if overheated.
Automatic recovery.
Temperature Range:
0° to 50°C at full ratings.
Safety Agencies:
Most models are approved to UL1950; CSA
22.2 #234; IEC 950 and TÜV EN60950, Class 1 SELV., CE 72/23/
EEC/93/68EEC (low voltage directive).
Conducted RFI:
Meets FCC Part 15, Subpart J, Class A;
EN55022 Class B; CISPR 22 Class B.
Output Isolation:
Isolated from ground 50 Vdc.
Cooling:
30 cfm required to achieve full ratings.
OPTIONS:
Option “E”,
Euro Style Connector: Provides input and auxiliary
output connections accepting 14 to 24 AWG wire.
Option “F”, Fan/Cover Assembly:
Cover with integral ball-
bearing fan provides proper cooling to achieve full ratings at 50°C
ambient temperature. 1.85” dimension increases to 3.08”.
Option “V”, Fan/Cover Assembly:
Low profile, end venting
cover with integral ball-bearing fan. 1.85” dimension increases to
2.50”, and 8.05” dimension increases to 9.40”.
AC INPUT
FUNCTION
TB1-(L)
TB1-(N)
TB1-(GND)
Line
Neutral
Safety Ground
115 VAC
Line 1
Line 2
Safety Ground
230 VAC
CONNECTOR
Barrier strip
#6-32 screws
0.325" Centers
DC OUTPUT
FUNCTION
Output #1
LOCATION
Terminal marked +V
Terminal marked -V
Output #2
J1-1,6
J1-2,7
Output #3
J1-3,8
J1-2,7
Output #4
J1-4,9
J1-5,10
Rtn (common)
(+) Floating Output
(-) Floating Output
Rtn (common)
Main output
Rtn (common)
NOTES
Bus bars
#6-32 screws
AMP#770743-1 mates
with connector 770580-1
with sockets #171639-1
(AWG #20 to #16)
CONNECTOR
STATUS AND CONTROL
FUNCTION
Remote Sense
J2-6
J2-5
Dc Power Good
Inhibit
J2-4
J2-2
LOCATION
NOTES
Output #1 Sense
Output #1 Sense Rtn
Reference to Common
when #1 Sense Rtn
is terminated
Current Share
Ac Power Fail
Aux. Fan Voltage
(Not available with "V "or
"F" options)
J2-1
J2-3
J3-2
J3-1
Reference to Common
+12V @ 0.5 A Output
Rtn (commom)
AMP MTA type
#640456-2 pin
header(locking)
CONNECTOR
AMP MTA type
#640456-6 pin
header (locking)
74
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
PCB设计
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