OUTPUT

OUTPUT CURRENT

RIPPLE

TOTAL

REMOTE

PARALLEL

MODEL NUMBER

VOLTAGE

MIN

MAX

REGULATION

ENABLE/INHIBIT

INTERFACES

48VDC

0A

41.7A

480mV

±3.0%

Inhibit

All

AFE2000-26S48NA

54.5VDC

0A

36.7A

545mV

±3.0%

Inhibit

All

AFE2000-26S54NA

56.2VDC

0A

35.6A

562mV

±3.0%

Inhibit

All

AFE2000-26S56NA

Parallel interface specifications.

All signals are referenced to ISO_GND unless otherwise indicated.

Isolated signal ground

(ISO_GND)

May be connected to any voltage in the range from +Vout+5VDC to -Vout-

5VDC.

Overtemperature

(OTW)

Output bi-level signal. Bi-level signals are open-collector (drain) with a 5mA

sink capability and maximum voltage stand-off of 60VDC.

Logic 0 : Signal precedes OT shutdown by 5ms.

Logic 1 : Normal operation.

Remote Inhibit

(INHIBIT)

Input bi-level signals. Bi-level input signals shall be no greater than 5VDC.

Logic 0 : Normal operation.

Logic 1 : Output inhibit.

Voltage margin down

(DOWN)

Input bi-level signals. Bi-level input signals shall be no greater than 5VDC.

Logic 0 : Nominal output voltage.

Logic 1 : 44.5 to 45.5VDC output.

Power good signal

(PWR_GOOD)

Output bi-level signal. Bi-level signals are open-collector (drain) with a 5mA

sink capability and maximum voltage stand-off of 60VDC.

Logic 0 : Output undervoltage.

Logic 1 : Output voltage normal.

Fault fail signal

(F/F ±)

Differential relay contact, isolated from all outputs and returns within the

power module.

Relay closed : Power supply failure

Relay open : Normal operation.

Power fail warning signal

(PFW)

Output bi-level signal. Bi-level signals are open-collector (drain) with a 5mA

sink capability and maximum voltage stand-off of 60VDC.

Logic 0 : Signal precedes loss of output power by 5ms.

Logic 1 : Normal operation.

Module Missing Pin

(MM)

Provision for detection of unseated or removed module. MM pins are

common internal to the power supply. Internal pull-up resistor to +5VDC logic

bias, referenced to RS-.

Auxiliary Output

(AUX ±)

12VDC auxiliary output. Isolated from both the main output and the isolated

signal ground. May be utilized for external housekeeping supply and

connected to either main output or isolated signal ground.

Current Monitor

(IMON)

Current source which mirrors magnitude of the output current. Signal return

is referenced to RS-.

Current Limit

(CL)

Output bi-level signal. Bi-level output signal is open-collector (drain) with a

5mA sink capability and maximum voltage stand-off of 60VDC.

Logic 0 : Output is in current mode control and is current limiting.

Logic 1 : Normal operation.

Remote Enable

(ENABLE)

Input bi-level signal. Bi-level input signal shall be no greater than 5VDC.

Logic 0 : Output inhibited.

Logic 1 : Normal operation.

Reset

(RESET)

Input bi-level signal. Bi-level input signal shall be no greater than 5VDC.

Logic 0 : Resets fault indicators without unit shut-down.

Logic 1 : Normal operation.

AC Good

(AC OK)

Output bi-level signal. Bi-level output signal is open-collector (drain) with a

5mA sink capability and maximum voltage stand-off of 60VDC.

Logic 0 : AC input below normal operating range.

Logic 1 : AC input within steady-state operating range (170 to 264VAC).

Voltage monitoring

(VMARG)

Input analog signal referenced to RS-. Adjusts output up to 4VDC higher than

the nominal set point.

Features

Live insertion and removal

OR-ing diodes provided on output.

Voltage monitoring jacks

Located on front panel.

LED’s (located on front panel)

Power Good

-

Green

Power Fail

-

Red

AC Good

-

Green

Protection

Thermal protection - automatic shut-off for fan failure or internal

overtemperature.

Output Overload and Short Circuit - automatic shut-down after 30 seconds.

Current regulated output down to less than 1VDC.

Output Overvoltage - automatic shut-down for both main (60VDC max.) and

auxiliary (15.6VDC max.) outputs.

Output Undervoltage - automatic shut-down below 42VDC.

Current Share

Active current sharing for up to 9 AFE2000 power modules.

Short Pin

Short pin located in the output connector initiates shut-down of the power

supply output when the power supply is removed from the host power shelf.

2000 Watt

AC/DC PFC front-end for distributed power architectures

DISTRIBUTED POWER FRONT END AC/DC POWER SUPPLIES

|

2000W AC/DC

PAGE 2

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Please consult our website for the following items: ✔ Application Note

International Safety Standard Approvals

EN60950/IEC950 File No. E9972397

UL1950 File No. E135734