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DC Input
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36-75VDC.
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Efficiency
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75% typical.
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Input Surge Protection
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IEC1000/IEC801-4 (Level 5), -5
(Level 3).
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Reverse Input Protection
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All models are protected against
damage from reverse voltage.
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Inrush Current Limiting
|
PFD075X “ 80A.
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Surge Current Capability
|
Output 2 can provide a surge current
capability equal to three times the rated output
current for up to one second, then derating
exponentially to steady state value after 10 seconds.
The maximum total output power must not be exceeded.
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EMI
|
Conducted and radiated EMI conforms
to EN55022, Curve A; FCC Docket 20870 Part 15 Subpart
B, Class A; ETS300 386-1 Par 7.2; Bellcore
TR-NWT-001089.
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DC Output Controls
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A single turn potentiometer is
provided for adjustment over the entire voltage range.
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Remote Programming Voltage
|
Volt per volt on outputs 1, 2 and 4.
Output 3 tracks output 2.
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Line Regulation
|
1.0% for line variations from 36 to
75VDC.
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Load Regulation
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1.0% for load variations from 10%
load to full load and from full load to 10% load on
output 1. 5.0% for outputs 2, 3 and 4. 10% pre-load
required on output 2 for regulation of all outputs.
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Ripple and Noise
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1.0% of Vout pk-pk.
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Redundant Operation
|
Redundant operation achieved through
external diodes on all outputs.
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Overcurrent Protection
|
Internal circuitry limits all output
currents to a safe preset level in the event of an
overload or short circuit condition. Upon removal of
short or overload condition, normal operation resumes
automatically.
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Cooling
|
All models are forced air cooled via
integral fans.
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Operating Temperature Range
|
0°C to +50°C continuous operation.
Derate output power linearly from 50% up to 70°C
operation.
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Storage Temperature
|
-40°C to +85°C.
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Temperature Coefficient
|
0.03% per °C.
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Isolation
|
Input to Output “ 1500VDC.
|
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Output Good Signal
|
Conductance signal from uncommitted
opto coupler indicates DC output 1 is within 90% of Vo
nominal.
|
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Input Good Signal
|
Conductance signal from uncommitted
opto coupler indicates DC input is above 40.8VDC.
|
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Fan Good Signal
|
Conductance signal from uncommitted
opto coupler indicates fan operation.
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Remote On/Off
|
Contact closure from remote terminal
to -S on output 1 shuts down all outputs of the power
supply. Open contact or TTL high signal on remote
terminal enables unit.
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Remote Sensing
|
Internal sensing allows for remote
sensing on outputs 1 and 4(5V Option B). Remote
sensing allows for 0.75V line drop on +V and 0.25V
line drop on -V.
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Resistive Programming
|
1000 ohms per volt on outputs 1, 2
and 4. Output 3 tracks output 2.
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Thermal Protection
|
Internal circuitry protects the
power supply against fan failure or excessive ambient
temperature.
|
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Safety Agency Approval
|
UL1950, VDE/EN60950, CSA234M90 and
CE Mark (LUD).
|
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Options
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Options Description
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Warranty
|
1 year.
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