QUINT-PS-3x400-500AC/24DC/20

100034_04_en

PHOENIX CONTACT

9

Output

Figure 9

Output

Connecting the Output

The connection is made using the "+" and "-" screw

connections on the screw connection

2. The output

voltage set upon delivery is 24 V DC. The output voltage

can be set on the potentiometer

5.

Protecting the Secondary Side

The device is electronically short-circuit-proof and idling-

proof. In the event of an error, the output voltage is limited

to a maximum of 35 V DC.

Signaling

The two DC OK outputs are for preventive function

monitoring of the power supply unit. A floating signal

contact

4 and an active DC OK signal 3 are available. In

addition, the DC OK LED

6 can be used to evaluate the

function of the power supply directly at the installation

location (see "Status Indicator: DC OK LED" on page 10).

Floating Contact

Figure 10

Floating contact

When opened, the floating signal contact indicates that the

output voltage has fallen more than 10% below the set

value. Signals and ohmic loads up to a maximum of 30 V

and currents up to a maximum of 1 A can be switched.

Active Signal Output

Figure 11

Active signal output

The 24 V DC signal is between the "DC OK" and "-"

connection terminal blocks and can be loaded with 40 mA

maximum. This signal output indicates that the output

voltage has fallen more than 10% below the set value when

"active high" changes to "low". The DC OK signal is isolated

from the power output. This ensures that a separate supply

does not enter from devices connected in parallel.

The 24 V DC signal can be connected directly to a logic

input for evaluation.

Make sure that all output cables are the correct

size for the maximum output current or have

separate fuse protection.

The cable cross sections in the secondary

circuit must be large enough to keep the

voltage drops on the cables as low as possible.

DC

OK

OK

13

Output

DC

24V

20A

DC

O

K

DC

OK

Ad

ju

st

Adjust

22

,5-2

8,5

V

22,5-28,5V

In

pu

t 3

AC

400

-50

0V

Input

3 A

C

400-500V

L1

L2

L3

L1

L2

L3

14

5

6

DC

DC

OK

OK

13

13

Output

DC

24V

20A

Output

DC

24V

20A

14

14

2

3

4

With heavy inductive loads, e.g., a relay, a

suitable protective circuit (e.g., free-wheeling

diode) is required.

DC OK

+ +

+ +

13 14

- -

30 V AC/DC, 1 A, maximum

DC OK

24 V DC

40 mA

+ +

+ +

13 14

- -