DRF Series (provisional datasheet)

2

Model Selector

Output

OutputAdjust

MaxOutput

MaxOutput

Efficiencyat

Model

Voltage

Range (V)

Current (A)

Power (W)

115/230VAC (%)

DRF120-24-1

24

24-28

5

120

89/91

DRF240-24-1

24

24-28

10

240

92.5/94

DRF480-24-1

24

24-28

20

480

92.5/94

Optional Models

Suffix

Description

/HL

Conformally Coated (ATEX, IEC EX,GL)

Notes from page 1

1. Operating period at peak output current is 4 sec, max duty cycle<35% &< rated output power

2. At 115/230VAC, Ta = 25°C, nominal output voltage, rated output power

3.Ripple&noiseismeasuredat20MHzusing300mmtwistedpairofloadwiresterminatedwith0.1µFfilmcap&47µFelectrolyticcap

4. Constant current (CC) limit for >101% of peak output current. CC limit with auto recovery within 4 sec, unit will shutdown at >4sec

5. Output will shutdown, manual reset by mains cycle off/on or CNT on/off

6. Refer to instruction manual

7. Select /HL model for ATEX, IEC Ex and GL (Germanischer Lloyd) approvals (see optional models table)

See product outline drawings for locations

Signal Connector Pin Assignment

PIN

Function

Detail

1

CB

For parallel operation cut the link between pins 1 & 2 for droop mode current share

2

CB-COM

3

N/C

No Connection

4

N/C

5

CNT+

Remote ON/OFF control, when CNT+ is pulled to TTL low the power supply turns ON, otherwise it turns OFF

6

CNT-

7

PV

Programming voltage range 5 - 6V presets the output to 24 - 28V

8

COMM

DRF120 example*

Terminal Explanation

Connection

1 +V: +Output terminal

2 –V: –Output terminal

3 V.ADJ: Output voltage adjust trimmer

The output voltage rises when a trimmer is turned clockwise

5 N: AC Input terminal. Neutral line

6 –V: Protective Earth

Connect to safety ground of apparatus or equipment

7 DC OK:

Green LED lights when output voltage is > 80% of rated output voltage

8 PEAK:

Red LED lights when unit is in peak power mode

9 DC OK: Relay contact

10 DC OK: Relay contact