PIN CONNECTIONS

PIN NUMBER

SIGNAL

1

5V Bias

2

PFC Fail

3

5V Bias Return/Signal Return

4

Remote Inhibit H

5

Voltage Trim

6 to 12

-48V Return

13

Current Monitor +

14

Current Monitor -

15

Power Good L

16

Fan Fail Detect L

17

Power Fail Detect H

18 to 24

-48V

International Safety Standard Approvals

VDE0805/EN60950/IEC950 File No. 10401-3336-1090

UL1950 File No. E136005

CSA C22.2 No. 950 File No. LR50913/LR101320

Certificate No. PS/606473

Control and supervisory functions

Bias Supply H

(Pin 1)

Isolated 5V bias supply, maximum current 0.5A. Allows the system designer

to power system control circuitry.

PFC Fail L

(Pin 2)

A failure in the Power Factor Correction stage, i.e. loss of the 400V internal

bus, is indicated by this open collector signal, asserted low.

Bias Return L

(Pin 3)

Return path for the 5V bias supply. All signals are referenced to this return.

Remote Inhibit H

(Pin 4)

The output is inhibited when this signal is tied high. IIL max. = 10mA.

Voltage Trim

(Pin 5)

The output voltage can be adjusted up to -56V by connecting a 100k variable

resistor between pin 5 and pin 14.

Current Monitor

(Pins 13, 14)

Value: 0.1 x Iout. Tolerance: 10%. Range: 5 to 25A

Power Good L

(Pin 15)

An open collector signal, asserted low. Threshold asserted: 44.5 to 46V,

deasserted: 56.5 to 58V. See Figure 1.

Fan Fail Detect L

(Pin 16)

An open collector signal, asserted low, indicates fan failure. See Figure 1.

Power Fail Detect H (Pin 17)

An open collector signal, asserted high, indicating AC line failure. The output

voltage will stay within regulation 4ms after PFD is asserted.

Protection features

Overvoltage protection

The unit will shutdown and latch off if the output voltage exceeds the OVP

threshold. Input power recycling is necessary to restart the unit.

Overcurrent and short circuit protection

The unit is protected against an overload on its output in the range 25 to 30A,

with automatic recovery on overload removal. Under short circuit conditions,

the unit shuts down.

Over temperature protection

If the internal temperature of the unit exceeds a safe limit, the unit shuts down

and will need power recycling to re-start.

Input voltage sags

A user supplied jumper inhibits operation of the unit in the 110V range. This

limits the input current to a safe level when operating at 230V to prevent

circuit breakers tripping under brown out. This programmable jumper can be

accessible by removing the cover plate. Refer to view A on page 102.

Load sharing

The DPF1000-9617PE power supply provides load sharing capability for

implementing parallel operation. An internal OR-ing diode is used in each

output to provide N+1 redundancy. The power supplies will share the load

power supply.

Method of current sharing of -48V output shall be via the "droop method", as

illustrated in Figure 2 below:

OUTPUT

OUTPUT CURRENT

RIPPLE

TOTAL

MODEL NUMBER

VOLTAGE

MIN

MAX

REGULATION

-48V

0A

21A

1000mV

±5.0%

DPF1000-9617PE

+5V

0A

0.5A

100mV

±5.0%

50.4V

(+5%)

Output Current

Output

Voltage

Total Output

Tolerance

Band

48V

46.9V

46.5V

45.6V

(-5%)

10A

21A

(1000W)

25A

(1200W)

+0.10V (48.1V)

-0.10V (47.9V)

Setting Tolerance

Droop and Regulation Characteristics

Figure 2:

1000 Watt

AC/DC PFC front-end for distributed power architectures

DISTRIBUTED POWER FRONT END AC/DC POWER SUPPLIES

|

1000W AC/DC

PAGE 2

http://www.artesyn.com

Figure 1:

AC Input

48V Output

PFD Signal

Power Good Signal

t1 varies with line and load

t2 > = 4ms

t1 + t2 > =20ms

t1

t2