8000077 Rev 1 PSDIN User Guide
Subject to change without notice
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Removal from DIN Rail:
Insert a flat screwdriver into the slot in the DIN rail bracket. Pull down on the clamp
to release the unit from the DIN rail.
3. Front Panel
Operation indicator
Indicates whether the unit is working properly. Green LED (“DC-OK”) is lit if the voltage at the output terminal
is more than 45V. Red LED (“Overload”) will light when output is in fault condition.
DC Adjust Potentiometer
Output Voltage can be adjusted to suit individual application needs. The adjustment range is 47VDC to 56VDC.
Single/Parallel Use Switch
The power supply units can be operated standalone (“Single Use”) or ganged (“Parallel Use”) in order to
provide additional power. When in parallel mode the outputs are connected together in parallel (+ to + and
– to –)to feed the load. Two 120W power supplies in parallel mode provide up to 240W of power to the load.
DO NOT change the Single/Parallel switch position while the unit is powered up. Please disconnect power
before changing the mode to avoid damage to the unit.
“DC” and “OK” Connection
The DC and OK connections at the top of the unit are a dry contact relay which is CLOSED when the DC output
is normal and OPEN when the DC output is in a fault condition. Contact rating is 1A @ 30VDC or 0.5A at
125VAC. This is useful to trigger an alarm if the DC output fails.
4. Connections / Internal fuse
◆
There is an internal 5A fuse on the AC input. This is not designed to be user serviceable.
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Use only commercial quality cables designed for the indicated voltage and current values!
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When using stranded cables, be sure all strands are secure inside the wire terminal connector.
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Ensure proper polarity at the output terminals! There are two – and two + terminals for convenience.
◆
Do not operate without proper ground connection! A proper ground is required to comply with EMC
and safety standards. To ground the chassis, use one of the case screws on the back of the unit or the
separate ground screw on the bottom of the unit (if applicable).
Specifications
PSDIN-48-120W
PSDIN-48-240W
Input Operating Range
90-264VAC ; 47-63Hz
AC In-rush Current
35A Max
Input Current
2.2A @115VAC ; 1.10A @230VAC
4.4A @115VAC ; 2.20A @230VAC
Output Voltage
47~ 56VDC (adjustable)
Cont. Load Current
2.5A
5A
Max Output Power
120W
240W
Peak Power (10sec)
180W
360W
Ripple / Noise
100mV Peak
Efficiency
90% Minimum
Protection
Short Circuit, Over-Voltage, Over-Current, Over Power
Alarm Output (DC & OK)
1A @ 30VDC, 0.5A @ 125VAC. DC OK = Closed, DC Fault = Open
Operating Temp
-40°C to 70°C (-40°F to 158°F)
Note: de-rate to 50% power at 70C
Operating Humidity
5% to 95% non- condensing
Storage Temp
-40°C to 85°C (-40°F to 185°F)
MTBF
200,000 hrs
Altitude
2000m (6562ft)
