2938853 Datasheet 2938853 | P7-P9

PHOENIX CONTACT page 7 of 10

1-Phase Power Supply, Primary Switch Mode for Use in Potentially Explosive Areas –

QUINT 24 V DC/5 A/EX

+–

QUINT

LPEN

+–

QUINT

PEN

LPEN

+–

QUINT

LPEN

LPE

–

QUINT

LPEN

–

PEN

QUINT

LPEN

–

QUINT

6.4. Connection of Various Types of Network: 100 - 240 V AC Networks

Figure 09

TN-S network TN-C network TT network IT network

LPEN

–

QUINT

Input

AC 100-240V

Figure 10

Additional device protection is not required, as an

internal fuse is present.

Recommended Fuse:

Circuit breaker 6 A, 10 A or 16 A, Characteristic B (or

equivalent). No more than one power supply should be

connected to a fuse or a power switch. When using a

DC input voltage of more than 120 V, a suitable fuse

must be ﬁtted.

If the internal fuse is blown, this is most

probably due to a device fault. In this

case, the device should be checked and/

or repaired in the factory. The power

supply unit cannot be repaired by the

user and must be replaced by an

equivalent device.

Connection Cable:

The device is equipped with COMBICON

connectors. This reliable user-friendly connection

method enables quick device connection and safe

isolation of the electrical connection, if required. Only

operate connectors when the power is switched off.

To maintain UL approvals, use copper cables, which

are designed for operating temperatures of 75°C

(167°F). To maintain GL approval, unused terminal

compartments should be closed.

The following cable cross sections can be connected:

For reliable and safe-to-touch

connection: Strip 7 mm (0.28 in.)

from the connector ends.

To maintain EN 60 950/UL 60 950,

ﬂexible cables require ferrules.

6.5. Input (

, Figure 10)

The 100 - 240 V AC connection is made using screw

connections L, N, and

The device can be connected to single-phase

AC networks or to two external conductors for three-

phase networks (TN, TT or IT network according to

VDE 0100 T 300/IEC 364-3) with nominal voltages of

100 - 240 V AC.

Protecting the Primary Side

The device must be installed according to the

speciﬁcations of EN 60 950. It must be possible to

switch off the device using a suitable disconnecting

device outside the power supply. Note that an all-pole

disconnecting device must be provided for two-phase

operation using two external conductors for a three-

phase network. For example, primary side line

protection could be used.

Solid

[mm

]

Flexible

[mm

]

AWGTorque

[Nm] [Ib in.]

Input:

0.2 - 2.5 0.2 - 2.5 25 - 14 0.5 - 0.6 4.4 - 5.3

Output:

0.2 - 2.5 0.2 - 2.5 25 - 14 0.5 - 0.6 4.4 - 5.3

Signal:

0.2 - 2.5 0.2 - 2.5 25 - 14 0.5 - 0.6 4.4 - 5.3

7 mm (0.28 in.)

PHOENIX CONTACT page 8 of 10

1-Phase Power Supply, Primary Switch Mode for Use in Potentially Explosive Areas –

QUINT 24 V DC/5 A/EX

Figure 11

Output DC 24V 5A

+ +

– –

13 14

DC OK

Adjust

22.5-28.5V

QUINT POWER

13 14

+ + – –

Figure 12

DC OK

+ + – –

Output 24V DC

DC OK

13 14

max.

30 VAC/DC, 1 A

6.6. Output (Figure 11)

During operation only devices, which are suitable for

operation in potentially explosive areas of zone 2, can

be connected to the output voltage in zone 2.

The 24 V DC connection is made using the "+" and

"-" screw connections on the screw connection

. The

output voltage set upon delivery is 24 V DC.

The output voltage can be adjusted from 22.5 to

28.5 V DC on the potentiometer

. The output voltage

cannot be adjusted during operation in potentially

explosive areas.

Protecting the Secondary Side:

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

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

limited to a maximum of 35 V DC.

It should be ensured that all output cables are the

correct size for the maximum output current or have

separate fuse protection.

The secondary side cables should have large cross

sections to keep voltage drops on the cables to a

minimum.

External decoupling diodes are required for

redundancy operation of these power supplies.

For example, the QUINT-DIODE/40 redundancy

module could be used (Order No.: 29 38 96 3).

Signaling

Both DC OK outputs are used for preventive function

monitoring of the power supply. An electrically isolated

signal contact 44

and an active DC OK signal 33

are

available. In addition, the DC OK LED 66

can be used

to evaluate the function of the power supply directly at

the installation location.

Electrically Isolated Contact (Figure 12)

When opened, the electrically isolated 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.

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

protective circuit (e.g., free-wheeling diode) is required.

Green "DC OK" LED

ON Flashing OFF

Active

DC OK switching output

(with reference to "-")

U = 24 V U = 0 V U = 0 V

Electrically isolated

DC OK output Closed Open Open

Meaning Output voltage

greater than 90%

of the set voltage

Output voltage

less than 90% of

the set voltage

No voltage at the

output

Description Output voltage

and current OK

QUINT POWER

operating, but:

•Error at the load

•Current

consumption

greater than

BOOST

•Output short

circuit

QUINT POWER

not operating,

because:

•No mains

voltage present

•Primary side

fuse is blown

•Device is faulty

PHOENIX CONTACT page 9 of 10

1-Phase Power Supply, Primary Switch Mode for Use in Potentially Explosive Areas –

QUINT 24 V DC/5 A/EX

DC OK

24 V DC

max. 40 mA

+ + – –

Output 24V DC

DC OK

13 14

Figure 13

Figure 14

DC OK

24 V DC

40 mA

+ + – –

Output 24V DC

DC OK

13 14

+ + – –

Output 24V DC

DC OK

13 14

Device 1 Device 2

Active Signal Output (Figure 13)

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 the

logic input for evaluation.

Signal Loop (Figure 14)

The two signal outputs mentioned above can be

combined easily.

Example: Monitoring two devices

Use the active alarm output of device 1 and loop in

the electrically isolated alarm output of device 2. In the

event of an error, a group error message is generated.

It is possible to loop any number of devices.

This signal combination saves on wiring costs and

logic inputs.

DC OK LED

The green DC OK LED enables local function

evaluation in the control cabinet.

7. Function

7.1. Output Characteristic Curve

The device can supply a nominal output current of

5 A up to an ambient temperature of 60°C (140°F).

With an ambient temperature of up to 40°C (104°F) the

device continuously supplies an output current of 7.5 A.

At temperatures up to 60°C (140°F), the

POWER BOOST provides a short-term output current

of 7.5 A for a few minutes.

With high loads, the working point demonstrates the

U/I characteristic curve shown in Figure 15.

On an overload or short circuit, the entire output

current I

BOOST

is provided permanently at a reduced

output voltage.

Once the overload or short circuit has been removed,

the entire set secondary voltage is available again.

The U/I characteristic curve ensures that both heavy

capacitive loads and devices with DC/DC converters

can be supplied by QUINT POWER in the input circuit

without any problems.

Connected fuses are reliably tripped. The selectivity

in your system conﬁguration is ensured at all times.

LED ON Normal operation of the power supply

LED

ﬂashing

The output voltage has fallen by more than 10%.

There is a secondary load short circuit or overload

outside the POWER BOOST area.

LED OFF No mains voltage is present or there is a device fault.

BOOST

OUT

[

]

OUT

[

]

< 40 °C

Figure 15

120 W

180 W

5 7.5

P1-P3 P4-P6 P7-P9 P10-P10

2938853

Mfr. #:

Buy 2938853

Manufacturer:

Phoenix Contact

Description:

DIN Rail Power Supplies QUINT 24VOLT 5AMP

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2938853