ABB Softstartéry - komunikace (EN)

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Vydal: ABB s.r.o, ELSYNN Autor: ABB ELSYnn

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Define num ber sla e. 3.g. including 10% spare slaves: | Example: slaves ---> Master the row the 26th slave.2006 PROFIBUS-DP_PowerSupply-via-Bus-Cable_Calculation-Berechnung_05-2006. E xam ple PDQ22 mA Individual currents can filled the yellow cells near the slaves. Define average length the bus line betw een the slaves: 3,0 m The total length appears the row the master, green cell. Fill current the slaves: mA The current slave the calculated sum the current consumption of PDQ22 PDP21 PDP22 and the current consumption of the connected slaves please find them the accordant technical data sheet . It necessary consider also the max. Result: oltage the row the master delivered the power supply, total Current and total Length. Individual length can filled the green cells near the slaves. This supply voltage ust not exceed 31,2 volts ! Result: Sum Current The calculated sum all currents bus line ust not exceed 4000 (System Limit)! Number of Slaves I Single Lengths (can fixed individually) Master Slave — 31 Slave —■ 30 Slave 29 Slave 28 Slave 27 Slave 26 Slave 25 Slave 24 Slave 23 Slave I V Sum Bus Length I V 93,0 m 3,0 m 90,0 m 3,0 m 87,0 m 3,0 m 84,0 m 3,0 m 81,0 m 3,0 m 78,0 m 3,0 m 75,0 m 3,0 m 72,0 m 3,0 m 69,0 m 3,0 m 66,0 m 3,0 m Single Current (can fixed individually) I V I mA Sum Current I i V 1280 mA mA 1240 mA mA 1200 mA mA 1160 mA mA 1120 mA mA 1080 mA mA 1040 mA mA 1000 mA mA 960 mA mA 920 mA Voltage on the Slave V 23,66 V 23,39 V 2 3,12V 22,85 V 22,60 V 22,36 V 2 2,13V 21,90 V 21,68 V 21,48 V FieldBusPlug 03. 2.xls PROFIBUS. length the signal lines.PDP21-FBP PDP22-FBP PDQ22-FBP PROFIBUS DP-V0 FieldBusPlug PROFIBUS DP-V1 FieldBusPlug Power Supply via Bus Cable, Calculation (continued) Calculation procedure 1