Commissioning, Mechanical mounting, Electrical connection – Baumer GE-GB-GXxxx User Manual

Page 8: Cabling

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Manual_ProfibusDPV2_BIDE_EN.docx

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Baumer IVO GmbH & Co. KG

22.11.12

Villingen-Schwenningen, Germany

4. Commissioning

4.1. Mechanical mounting

Shaft encoders

Mount the encoder by help of the mounting holes and three screws (square flange: 4 screws) provided at

the encoder flange. Observe thread diameter and depth.

There is an alternative mounting option in any angular position by eccentric fixings, see under

accessories.

Connect drive shaft and encoder shaft by using an appropriate coupling. The shaft ends must not touch

each other. The coupling must compensate temperature and mechanical tolerances. Observe the
maximum permitted axial or radial shaft load. For appropriate couplings please refer to accessories.

Tighten the mounting screws firmly.


End shaft/hollow shaft encoders

Mounting by clamping ring

Prior to mounting the encoder open the clamping ring completely. Push encoder onto the drive shaft and
tighten the clamping ring firmly.

Adjusting element with rubber buffer

Push the encoder onto the drive shaft and insert the cylindrical pin into the adjusting element (provided by
customer) and the rubber buffer.

Adjusting angle

Push the encoder onto the drive shaft. Insert adjusting angle into the encoder’s rubber buffer and fasten
the adjusting angle at the contact surface.

Stud screw

Push the encoder onto the drive shaft and insert the stud screw provided by customer into the encoder’s
rubber buffer.

Spring coupling

Fasten the spring coupling at the mounting holes of the encoder housing using screws. Push the encoder
onto the drive shaft and mount the spring coupling to the contact surface.


4.2. Electrical connection

Ever store and transport the bus cover in the ESD bag only.

For electrical connection remove the bus cover as follows:

Release the fastening screws of the bus cover

Carefully loosen the bus cover and lift off in an axial direction


4.2.1. Cabling

EN 50170 specifies two types of PROFIBUS cable, type A and B. Type B is obsolete and should not be used
in new applications. With type A all transmission rates up to 12Mbit/s are possible. Common baud rate in
clock synchronous operation according to PROFIBUS-DPV2 is 12Mbit/s.

Properties

Data

Impedance in Ohm

135 to 165 at 3 to 20 MHz

Operating capacity (pF/m)

less than 30

Loop impedance (Ohm/km)

less than 110

Core diameter (mm)

greater than 0.64

Core cross section (mm)

greater than 0.34



Transmission speed depending on line distance

Baudrate in

kBaud

9,6

19,2

93,75

187,5

500

1500

3000

6000

12000

Line distance

in m

1200

1200

1200

1000

400

200

100

100

100

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