Front side and operating elements

+

Line input +

-

Line input -

N/C

Not connected

Earth input

+

2 identical positive poles, positive output

-

2 identical negative poles, negative output

Potentiometer cover

Multi turn potentiometer;
open the flap to adjust the output voltage.
Factory set: 24.1V at full output current, “Single Use” mode

DC-OK LED (green)

• On:
the voltage on the output terminals is >90% of the adjusted output voltage.

Overload LED (red)

• On:
the voltage on the output terminals is <90% of the adjusted output voltage, or in case of a short circuit in the output.

• Flashing:
the shut-down has been activated or the unit has switched off due to over-temperature. I
Input voltage is required

Jumper

Set jumper to “Parallel Use” when power supplies are connected in parallel to increase the output power.
In order to achieve a sharing of the load current between the individual power supplies, the “parallel use” regulates the output voltage in such a manner that the voltage at no load is approx. 4% higher than at nominal load.
See also chapter “Parallel use for redundancy”. A missing jumper is equal to a “Single Use” mode.

Push-in terminals
13 / 14

The DC-OK relay contact is synchronized with the DC-OK LED.
See chapter “DC-OK relay contact” for details.

Push-in terminals
15/ 16

Allows the power supply to be shut down. Can be activated with a switch contact or an external voltage.
See chapter “Shut-down input” for details.

Normal mode

OFF

ON

Closed

During Extra Power

OFF

ON

Closed

Overload (Vout < 90%)

ON

OFF

Open

Output short circuit

ON

OFF

Open

Temperature Shut-down

flashing

OFF

Open

Active Shut-down input

flashing

OFF

Open

No input power

OFF

OFF

Open