Lenze 9400 Uživatelský manuál stáhnout pdf (Strana 254)

6 Encoder evaluation

6.3 Parameter setting

254

Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06

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6.3.8.2 Division of the SSI data word into partwords

The LS_SsiEncoderX8 SB can be configured so that it splits up the SSI data word received by the

encoder interface into several partwords.

• A separation into partwords is reasonable if the SSI data word also contains other data (like for

instance fault or status information) in addition to the position.

• The max. 8 possible partwords are fixedly assigned to the outputs SSI_dwDataword_1 ...

SSI_dwDataword_8.

• The partwords are configured via the following parameters:

• In the Lenze setting the complete SSI data word received is shown at the output

SSI_dwDataword_1:

[6-7] Example 1: Lenze setting

• The following example shows the parameterisation required to split up the SSI data word

received into three partwords (here status information, error bit, and position information):

[6-8] Example 2: Splitting up the SSI data word received into three partwords

Parameter Info

C00435/1...8

Starting position for partwords 1 ... 8

In order to be able to display the individual components of the SSI data word received at

different outputs, this code serves to specify the bit position with which the partword for the

respective output starts for the eight possible outputs of the LS_SsiEncoderX8

SB .

Subcode 1 is fixedly assigned to the first output, subcode 2 to the second output, etc.

C00436/1...8

Length of the partwords 1 ... 8

Apart from the position of the first bit, also the bit length of each partword is important for

the separation. A length of zero means that no partword is to be shown at the corresponding

output (output = 0). Here also subcode 1 is fixedly assigned to the first output, subcode 2 to

the second output, etc.

S = start bit  position information

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S = start bit  Status information  Error bit  Position information

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