Parameters and firmware blocks205Group 50 FIELDBUSBasic settings for fieldbus communication. See also Appendix A – Fieldbus controlon page 423.50Firmware block:FIELDBUS(50)This block• initialises the fieldbuscommunication• selects communication supervisionmethod• defines scaling of the fieldbusreferences and actual values• selects sources for programmablestatus word bits• shows the fieldbus control andstatus words, and references.Block outputs located in otherparameter groups2.12 FBA MAIN CW (page 95)2.13 FBA MAIN SW (page 98)2.14 FBA MAIN REF1 (page 99)2.15 FBA MAIN REF2 (page 99)50.01 FBA ENABLE FW block: FIELDBUS (see above)Enables communication between the drive and fieldbus adapter.(0) Disable No communication.(1) Enable Communication between drive and fieldbus adapter enabled.50.02 COMM LOSS FUNC FW block: FIELDBUS (see above)Selects how the drive reacts upon a fieldbus communication break. The time delay is defined byparameter 50.03 COMM LOSS T OUT.(0) No Communication break detection disabled.(1) Fault Communication break detection active. Upon a communication break,the drive trips on fault FIELDBUS COMM and coasts to stop.(2) Spd ref Safe Communication break detection active. Upon a communication break,the drive generates alarm FIELDBUS COMM and sets the speed tothe value defined by parameter 46.02 SPEED REF SAFE.WARNING! Make sure that it is safe to continue operation incase of a communication break.FIELDBUS 36MISC_2 500 μsec (1)50.01 FBA ENABLE(Drive value)50.02 COMM LOSS FUNC(Drive value)50.03 COMM LOSS T OUT(Drive value)50.04 FBA REF1 MODESEL(Drive value)50.05 FBA REF2 MODESEL(Drive value)< 50.06 FBA ACT1 TR SRC[ SPEED ACT ](7 / 1.01)< 50.07 FBA ACT2 TR SRC[ TORQUE ](1 / 1.06)< 50.08 FBA SW B12 SRC(Drive value)< 50.09 FBA SW B13 SRC(Drive value)< 50.10 FBA SW B14 SRC(Drive value)< 50.11 FBA SW B15 SRC(Drive value)50.12 FBA CYCLE TIME(Drive value)50.20 FB MAIN SW FUNC(Drive value)2.12 FBA MAIN CW2.13 FBA MAIN SW2.14 FBA MAIN REF12.15 FBA MAIN REF2