750-425 - 2-channel digital input; NAMUR

Number of digital inputs

2

Number of Channels

2

Signal type

NAMUR

Supply voltage (sensor)

8.2 VDC; short-circuit-protected, each channel supplied separately

Sensor connection

2 x (2-wire)

Input characteristic

high-side switching

Input filter (digital)

3

Protection against incorrect wiring

Short circuit monitoring: > 6.5 mA

Wire break monitoring: < 0.2 mA

Open-circuit voltage

8.2

Short-circuit current

≤ 8.2 mA

Signal current (0) NAMUR

1.2

Signal current (1) NAMUR

2.1

Switching hysteresis

0.2

Diagnostics

Short circuit, wire break

Contact resistance (max.)

1000

Input pulse length

5

Input pulse separation

3

Input data width (internal) max.

4

Data width

4-bit input: 2-bit data, 2-bit error (short circuit/wire break)

Supply voltage (system)

5 VDC; via data contacts

Current consumption (5 V system supply)

5

Supply voltage (field)

24 VDC (-25 … +30 %); via power jumper contacts (power supply via blade contact; transmission via spring contact)

Isolation

500 V system/field

Indicators

LED (A, C) green: Status DI 1, DI 2; LED (B, D) red: Error DI 1, DI 2

Number of incoming power jumper contacts

2

Number of outgoing power jumper contacts

2

Current carrying capacity (power jumper contacts)

10

Connection technology: inputs / outputs

8 x CAGE CLAMP^®

Connection type 1

Inputs/Outputs

Solid conductor

0.08 … 2.5 mm² / 28 … 14 AWG

Fine-stranded conductor

0.08 … 2.5 mm² / 28 … 14 AWG

Strip length

8 … 9 mm / 0.31 … 0.35 inch

Width

12 mm / 0.472 inch

Height

100 mm / 3.937 inch

Depth

69.8 mm / 2.748 inch

Depth from upper-edge of DIN-rail

62.6 mm / 2.465 inch

Mounting type

DIN-35 rail

Pluggable connector

Fixed

Color

light gray

Housing material

Polycarbonate; polyamide 6.6

Fire load

1.267

Weight

48.4

Conformity marking

CE

Ambient temperature (operation)

0 … +55 °C

Surrounding air temperature (storage)

-25 … +85 °C

Protection type

IP20

Pollution degree (5)

2 per IEC 61131-2

Operating altitude

0 … 2000 m / 0 … 6562 ft

Mounting position

horizontal (standing/lying); vertical

Relative humidity (without condensation)

95

Vibration resistance

4g per IEC 60068-2-6

Shock resistance

15g per IEC 60068-2-27

EMC immunity to interference

per EN 61000-6-2, marine applications

EMC emission of interference

per EN 61000-6-4, marine applications

Exposure to pollutants

Per IEC 60068-2-42 and IEC 60068-2-43

Permissible pollutant concentration H₂S at a relative humidity < 75%

10

Permissible pollutant concentration SO ₂ at a relative humidity < 75%

25