CDC90 datasheet(11/32 Pages) EH

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Liquiline Control CDC90

Endress+Hauser

Measuring ranges

→ Documentation of the connected sensor

Types of input

• Digital sensor inputs for sensors with Memosens protocol (Base-E module in the CDC90 control

unit )

• Digital inputs (DIO module in the CDC90 control unit)

• Digital inputs, Namur (pneumatic control unit)

• Analog inputs (AI module in the CDC90 control unit)

Input signal

Depending on version:

• Max. 2 x binary sensor signal

• Standard: 2 x 0/4 to 20 mA

• 0 to 30 V DC

Digital sensor inputs, passive

in the CDC90 control unit

Span

> 0 to 20 mA

Signal characteristic

Linear

Internal resistance

Non-linear

Test voltage

500 V

Digital inputs, passive in the

CDC90 control unit

Electrical specification

• drawing power (passive)

• Galvanically isolated

Span

• High: 11 to 30 V DC

• Low: 0 to 5 V DC

Nominal input current

max. 8 mA

PFM function

Minimum pulse width: 500 µs (1 kHz)

Test voltage

500 V

Cable specification

Max. 2.5 mm2 (14 AWG)

Digital inputs, passive in

pneumatic control unit

Span

• High: 11 to 30 V DC

• Low: 0 to 5 V DC

Nominal input current

max. 8 mA

Cable specification

Max. 2.5 mm2 (14 AWG)

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