File Name:DDRH-240-SPEC 2023-01-13

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)

)

(6 In parallel operation,after overload or short circuit fault occurs,

-

.

re power on to recover

LOAD

+

-

PSU4

PSU3

PSU2

PSU1

DC OK

+V ADJ.

+

12 3 4 5 6

TB3

78

12

12

TB1

TB2

DC OK

+V ADJ.

+

12 3 4 5 6

TB3

78

12

12

TB1

TB2

DC OK

+V ADJ.

+

12 3 4 5 6

TB3

78

12

12

TB1

TB2

DC OK

+V ADJ.

+

12 3 4 5 6

TB3

78

12

12

TB1

TB2

DDRH-240 series

240W High Reliable 250~1500Vdc Ultra Wide Input DIN Rail Type DC-DC Converter

DDRH-240

DDRH-240

DDRH-240

DDRH-240

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.)