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AS-Interface

power on three phases

SLA8.300

• Input: 3 AC 400-500V

• No neutral wire required

• Output: 30.5V / 8A

• AS Interface data decoupling

• Infrared (IR) addressing mode

• Overload protection by FUSE Mode

• For highly demanding industrial

applications

Input

Rated voltage

3 AC 400-500V

Rated current

3 x 0.8A/0.7A at AC 400V/500V

Frequency

47...63Hz (alternatively also DC possible)

Voltage range

3 AC 340...576V, DC 450...820V

2-phase operation is specified and permissible. Connection to 3 phases

is recommended due to reduced component stress. Internally fused on

each phase. External fusing is only necessary as required for input line

protection.

Power factor

>0.52

Integrated internal

fuses

3xT2A5 HBC (not accessible)

Inrush current

limited by NTC resistor

(line impedence acc. EN 61000-3-3)

EN 61000-3-2 (harmonic current emissions) is fulfilled

Hold-up time

>18ms (3-phase operation at AC 340V and

rated load); also see diagram

3 AC 400V

3 AC 500V

DC 820V

<50A

<60A

<70A

Output

Rated voltage

DC 30.5V ±3% (not adjustable)

Rated current

8A

Isoltation

Safe low voltage

PELV (IEC364-4-41)

SELV (IEC60950)

Current limitation

> 8.4A

Overload behaviour

FUSE Mode (continuous current for 2...5s, af-

terwards permanent switch-off)

Short-circuit current

>14A, <20A (max. 5s)

Load regulation

stat. 250mV (no load / full load)

line regulation

stat. 100mV (3 AC 340...550V)

Ripple

ohmic load)

Noise (Spikes)

ohmic load)

Overvoltage protection limited to max. 50V

Operating indicator

Green LED (extinguishes at overload)

Output is protected against short-circuit, open circuit and overload.

Use AS-Interface power supplies only together with AS-Interface lines!

Data and energy:

The primary switched mode DIN rail power supply SLA8.300 specifically

technology allows to connect up to 62 participants to a control and to

supply them with energy with a single two-conductor cable. When

connecting slaves, the yellow AS-Interface cable offers the high degree

of protection IP67 in conjunction with the insulation displacement. The

communication signals of the individual network participants are

modulated onto the supply voltage. For this purpose, specific power

supply units with integrated data decoupling are required for AS-

Interface systems.

Fast addressing of slaves:

The "IR addressing mode" selectable via jumper interrupts the data com-

munication on the yellow AS-Interface cable. Participants with an infra-

red interface can then quickly be assigned a new ID address by means of

an infrared programming unit without the need to disconnect them

from the AS-Interface cable. Afterwards, the "Communication Mode"

can be selected again to restart the data communication.

Safe operation by FUSE Mode:

The device features a FUSE Mode, which permanently switches off the

output in the event of failure and the unit at overload, short-circuit or

overtemperature and thus protects the relatively thin AS-Interface line

and the attached components. Triggering of the FUSE Mode is indicated

by a flashing LED. System restart requires the intentional activation of a

reset button on the front side of the unit. Thus, an accidental restart is

prevented and the slaves are protected against damage.

Order information

Order number

Description

SLA8.300

SLZ02

AS-Interface power supply unit

Wall mounting set (two pcs. per package)

Short description

Appr.No. 41701

EMC and

Low Volt.

Directive