396 Fieldbus control through the embedded fieldbus interface (EFB)
Basics of the embedded fieldbus interface
The cyclic communication between a fieldbus system and the drive consists of 16-bit
data words or 32-bit data words. The diagram below illustrates the operation of the
CANopen embedded fieldbus interface. The signals transferred in the cyclic
communication are explained further below the diagram.
SPEED REFERENCE SELECTION
22.11 Ext1 speed ref1 EFB ref1 Selects a reference received through the
embedded fieldbus interface as speed
reference 1.
22.18 Ext2 speed ref1 EFB ref1 Selects a reference received through the
embedded fieldbus interface as speed
reference 2.
TORQUE REFERENCE SELECTION
26.11 Torque ref1
source
EFB ref1 Selects a reference received through the
embedded fieldbus interface as torque
reference 1.
26.12 Torque ref2
source
EFB ref1 Selects a reference received through the
embedded fieldbus interface as torque
reference 2.
FREQUENCY REFERENCE SELECTION
28.11 Ext1 frequency
ref1
EFB ref1 Selects a reference received through the
embedded fieldbus interface as frequency
reference 1.
28.15 Ext2 frequency
ref1
EFB ref1 Selects a reference received through the
embedded fieldbus interface as frequency
reference 2.
OTHER SELECTIONS
EFB references can be selected as the source at virtually any signal selector parameter by
selecting Other, then either 03.09 EFB reference 1 or 03.10 EFB reference 2.
SYSTEM CONTROL INPUTS
96.07 Parameter save
manually
Save (reverts to
Done)
Saves parameter value changes (including
those made through fieldbus control) to
permanent memory.
Parameter
Setting for
fieldbus control
Function/Information
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