USP-500-48 Mean Well, USP-500-48 Datasheet - Page 4

• Manufacturer Part Number: USP-500-48
• Description: Linear & Switching Power Supplies 48V 10.5A 408W Active PFC Function
• Manufacturer: Mean Well

Specifications of USP-500-48

• Product: Switching
• Commercial/medical: Commercial
• Output Power Rating: 504 W
• Input Voltage: 90 VAC to 264 VAC, 127 VDC to 370 VDC
• Number Of Outputs: 1
• Output Voltage (channel 1): 48 V
• Output Current (channel 1): 10.5 A
• Mounting Style: Chassis
• Output Type: DC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.Remote Sense
4.Current Sharing with Remote Sensing (Optional for 24V & 48V)
Note : 1.In parallel connection, maybe only one unit (master) operate if the total output load is less than 2% of rated load condition.
The remote sensing compensates voltage drop on the load wiring up to 0.5V.
USP-500 has the built-in active current sharing function and can be connected in parallel to provide higher output power :
(1)Parallel operation is available by connecting the units shown as below.
(2)Difference of output voltages among parallel units should be less than 2%.
(3)The total output current must not exceed the value determined by the following equation.
(4)In parallel operation 2 units is the maximum, please consult the manufacturer for applications of more connecting in parallel.
(5)The power supplies should be paralleled using short and large diameter wiring and then connected to the load.
(+S,-S,CS and GND are connected mutually in parallel).
(output current at parallel operation)=(Rated current per unit) (Number of unit) 0.9
2.2% min. of dummy load is required.
The other PSU (slave) may go into standby mode and its output LED and relay will not turn on.
(pin5)
GND
500W Single Output with PFC Function
CN50
LED
1
2
Sense lines should
be twisted in pairs
7
8
CN50
+V
LED
PSU
1
2
+V
TB2
8
7
LOAD
-V
(Pin7)
+S
-V
+V
+
LOAD
Sense lines should
be twisted in pairs
Fig 3.1
Fig 4.1
TB2
-
-V
(pin2,8)
-S
CN50
(pin1)
CS
LED
1
2
(pin2,8)
8
7
-S
(pin7)
+S
+V
NC
CS
-S
-S
1
2
1
2
PSU
RC+
RC+
RC-
RC-
U S P - 5 0 0
TB2
CN50
CN50
DC-OK
DC-OK
GND
GND
-V
+S
+S
-S
-S
7
8
7
8
File Name:USP-500-SPEC 2010-10-18
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