Instruction Manual

Function Manual
1. Current sharing
(1) Parallel operation is available by connecting the units shown as below (P+,P- are connected mutually in parallel) :
(2) The voltage difference among each output should be minimized that less than 0.2V is required.
(3) The total output current must not exceed the value determined by the following equation (Output current at parallel operation)
=(The rated current per unit) x (Number of unit) x 0.9.
(4) In parallel operation 4 units is the maximum, please consult the manufacture for other applications.
(5) When in parallel operation, the minimum output load should be greater than 3% of total output load.
(Min. load > 3% rated current per unit x number of unit)
DC OK Relay Contact
Contact Close PSU turns on / DC OK.
PSU turns off / DC Fail.
30V/1A resistive load.
Contact Open
Contact Ratings (max.)
DDR-480 series
2. Remote ON-OFF Control
※ The power supply can be turned ON-OFF by using the "Remote ON-OFF" function.
Remote ON-OFF
(TB1 PIN2,4)
Open or 5.5 ~ 10VDC
Short or 0 ~ 0.8VDC
Output Status
power supply ON
power supply OFF
LOAD
+ -
480W DIN Rail Type DC-DC Converter
PSU4
File Name:DDR-480-SPEC 2022-03-18
Peak Loading
601.2W for 12Vo
720W for others
400.8W for 12Vo
480W for others
100 sec.
5 sec.
(150% load)
(100% load)
PSU3PSU2PSU1
+Vo
-Vo
P-
P+
DC OK
+
DC OK
Vo Adj.
+Vo
-Vo
P-
P+
DC OK
+
DC OK
Vo Adj.
+Vo
-Vo
P-
P+
DC OK
+
DC OK
Vo Adj.
+Vo
-Vo
P-
P+
DC OK
+
DC OK
Vo Adj.