Siemens SINAMICS S120 Manual - Página 25

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5 Drives Configuration

5.4

Using a Freely Configurable Telegram

It is possible to configure a custom telegram to fit a specific application

requirement. The custom configuration can be accomplished by one of several

methods listed.

1. Using a standard telegram as a template and changing the configuration

manually.

2. Selecting the input and output data length and connecting the telegram words

in the communications window of the drive configuration.

3. Configuration by Script execution. A script can be written in Starter which

configures the telegram size and connections required. The script is then

executed in Starter configuring the drive.

Parameter r2067 displays the number of PZDs the controller detected to be part of

the telegram for the Drive Object. The Input and Output data length must match the

values calculated by the controller in r2067 of the specified Drive Object.

Figure 5-6 Number of Interconnected PZDs

NOTE

In order for the CU to correctly calculate parameter r2067, The last PZD of the

telegram must be interconnected.

For example if you are using Telegram 352 and change to Free-BICO telegram

(P922 =999) then the four freely configurable input value to the drive must be

terminated to "Dummy" parameters if they are not used for actual parameter

connection – such as torque limit or added speed.

Figure 5-7 Example of spare word holder script using p20110 (free blocks multiplier)

SINAMICS S: Speed control of a S120 with an Allen-Bradley controller

(Compact/ ControlLogix with RSLogix 5000) via EtherNet/IP

Entry-ID: 92045369,

V4.0,

08/2018