Type 8652

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7.2. Electronic module with digital inputs (optional)

The position feedbacks are supplied (24 V) by the electronic module. Current is limited to maximum 30 mA per position feedback. Standard

3-wire sensors and 2-wire sensors with voltages between 10…30 V as well as mechanical limit switches can be used.

Note:

• Connect the position feedback indicator according to the pin assignment on the electronic module.

• Possible cable cross-section: ≤ 1.5 mm2

• Maximum cable length: < 30 m

3-wire sensor

2-wire sensor

Mechanical

limit switch

The following data may be displayed depending on the sensor used:

Possible data

3-wire sensors

2-wire sensors

Mechanical limit switches

Sensor actuated

X

X

X

Sensor not actuated

X

X

X

Short circuit

X

–

–

Wire break

–

X

–

8DI-Module (Digital input module)

Product properties

Diagnosis

Open-circuit detection with 2-wire sensors, short-circuit detection with 3-wire sensors

Electrical data

Electrical version

2-wire sensor, 3-wire sensor, mechanical limit switches

Switching threshold

V

OFF = 0…5 V

V

ON = 10…30 V

Input current of V

ON, typ. 24 V DC

Max. 5.7 mA per channel

Input impedance

> 4 KΩ

Galvanic isolation

No, all channels have a common reference potential