Siemens EK 726 Series Manual de servicio descargar pdf (Pagina 83)

COMMUNICATIONS / INTERFACES

MICROMASTER

MICROMASTER Vector

MIDIMASTER Vector

SIEMENS DA 64 – 2001/2002

4/7 Version C4

A segment can be extended by using RS485 amplifiers.

Recommended: SINEC L2 amplifier for RS 485

(Order No.: 6ES7972-0AA00-0XA0).

In order to guarantee reliable operation of the serial bus

system, the cable must be terminated at both ends using

terminating resistors. It is important to note that when the

drive inverter is in a no-voltage condition, when

(line supply OFF) it is not able to guarantee the power supply

of the bus module / terminating resistor. This means, under

certain circumstances, an active bus terminating device

should be used. (Order No.: 6ES7972-0DA00-0AA0). For

operation at 12Mbd, cables / connectors with integrated

damping network should be used as terminating device.

Furthermore, for 12Mbd operation, a drop cable (spur cable)

from the main bus cable is not permitted.

Suitable SINEC-L2 DP connectors and cables for reliable

operation up to 12Mbd are listed in Table 6:

The floppy disk, supplied together with the PROFIBUS

module, includes the Manual and 2 data files to configure the

associated PLC system.

Brief instructions for setting-up PROFIBUS

communications:

· The bus cable between the master system and drive must

be correctly terminated. This includes the necessary

terminating resistors and (at 12Mbd) the terminating

network.

· The bus cable must be shielded and the shield must be

connected to the housing of the cable connector.

· The PROFIBUS master must be correctly configured so

that communications can be established with a DP slave

using either PPO type 1 or PPO type 3 (only PPO type 1 if

the PPO type has not been configured using remote

operator control).

· When using the COM ET software together with a

SIMATIC S5, the correct descriptive file must be used so

that an IM 308B/C can be configured as bus master. If

the SIMATIC Manager is used for an S7, the object

manager must be loaded.

· The bus must be ready (when using a SIMATIC module,

the operator panel switch must be set to ON).

· The max. bus baud rate is only 12 Mbd.

Order No. Description

6ES7972-0BB10-0XA0 Bus connector with

PG interface

6ES7972-0BA10-0XA0 Bus connector without

PG interface

6ES7901-4BD00-0XA0 Bus cable

Table 6: Order numbers of the connectors and cables

· The PROFIBUS module must be correctly inserted in the

drive inverter and the drive inverter must be connected to

a power source.

· The slave address for the drive (parameter P918) must be

set so that it corresponds to the address configured in the

PROFIBUS master and it must be uniquely defined in the

bus.

PROFIBUS should be installed, carefully maintaining the EMC

guidelines and regulations (these are described in detail in the

Operating Instructions for the drive and the PLC).

Dimensions H x W x D 115 mm x 102 mm x 30 mm

Degree of protection IP 21

Max. bus transfer rate 12 Mbd

Table 7: Technical data

Designation Order No.

PROFIBUS module CB15 6SE3290-0XX87-8PB0

Table 8: PROFIBUS ordering data

Note: The mounting kit for IP56 drive inverters is provided

with each drive inverter and cannot be separately ordered.

Drive 1 Drive 2 Drive 3

Bus cable

Permissible configuration for 12Mbd

Drive 1

Drive 2

Drive 3

Bus cable

Permissible configuration at 12Mbd

1 2 ... 78 79 80 81 82 83 84 85 86 87 88 ... 119 120

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