SD-500L-48 Mean Well, SD-500L-48 Datasheet - Page 3

• Manufacturer Part Number: SD-500L-48
• Description: DC/DC Converters & Regulators 19-72Vin 48Vout 504W 10.5A
• Manufacturer: Mean Well

Specifications of SD-500L-48

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

1.Remote ON/OFF
2.Output OK signal
(1)Remote ON/OFF control becomes available by applying voltage in CN3
(2)Table 1.1 shows the specification of Remote ON/OFF function
(3)Fig.1.2 shows the example to connect Remote ON/OFF control function
"Output OK" is an open collector signal.
2-1 Sink current :
The maximum sink current is 10mA and the maximum
external voltage is 13V.
Function Description of CN3
Function Manual
2-2 Voltage signal :
Between O/P OK(pin3) and GND(pin4)
0 ~ 0.5V
12 ~ 13V
It indicates the output status of the PSU. It can operate
in two ways : One is sinking current from external signal ;
the other is sending out a voltage signal.
Table 1.1 Specification of Remote ON/OFF
Fig.1.2 Examples of connecting remote ON/OFF
Pin No. Function Description
(A)Using external voltage source
1
2
3
4
5
6
Connection Method
Output on
Output off
O/P OK
GND
RCG
RC
+S
-S
500W Single Output DC-DC Converter
Positive sensing. The +S signal should be connected to the positive terminal of the load. The +S and -S leads should be twisted in pair to
minimize noise pick-up effect. The maximum line drop compensation is 0.5V.
Negative sensing. The -S signal should be connected to the negative terminal of the load. The -S and +S leads should be twisted in pair to
minimize noise pick-up effect. The maximum line drop compensation is 0.5V.
Open collector signal, reference to pin4(GND). Low when PSU turns on. The maximum sink current is 10mA and the maximum
external voltage is 13V.
These pins connect to the negative terminal (-V).
Remote ON/OFF
Remote ON/OFF ground
1K
Fig. 1.2(A)
SW Open
SW Close
Output Status
OFF
ON
RC
RCG
V=0~0.8Vdc
V=4~10Vdc
Fig. 1.2(B)
5V
SW
+Vo +Vo -Vo -Vo
(B)Using external voltage source
+V ADJ.
1 5
2 6
CN3
1K
S D - 5 0 0
TB1
RC
RCG
File Name:SD-500-SPEC 2010-10-18
+S
-S
1
2
V
O/P OK
GND
CN3
RCG
RC
s e r i e s
5
6