KROHNE H250 M8-M9-M10 EN - Manual (Page 30)

4
ELECTRICAL CONNECTIONS
30
H250
www.krohne.com 04/2011 - 4000269302 MA H250-R02 en
4.3.3 Indicator M9 - Profibus PA (ESK3-PA)
Bus cable
Shielding and grounding Shielding and grounding Shielding and grounding Shielding and grounding
The statements of the FISCO model only apply if the bus cable used meets the required
specifications. For specifications, see the chapter "Technical data" ESK3-PA.
In order to ensure optimum electromagnetic compatibility of systems it is important that the
system components, and in particular the bus cables, are shielded. These shields must have as
few gaps as possible.
Polarity reversal has no effect on the function. The cable shield should be connected with
minimum length to the functional ground FE.
Connection
Figure 4-5: ESK3-PA connection
1 Signal connection
2 Shielding and grounding
MA_H250_R02_en_269302_PRT.book Page 30 Tuesday, April 12, 2011 10:17 AM