ABB FMBT-21, User Manual

Page: 44 / 92

State machine
The state machine for the ABB Drives communication profile is shown below.
PROFINET IO – Communication profiles 61
State machine
The state machine for the ABB Drives communication profile is
shown below.
Power ON (CW Bit0=0)
(SW Bit6=1)
(SW Bit0=0)
from any state
(CW=xxxx x 1 xx xxxx x 110 )
(SW Bit1=1)
n(f)=0 / I=0
(SW Bit2=0)
A B C D
(CW Bit3=0)
operation
inhibited
OFF1 (CW Bit0=0)
(SW Bit1=0)
(SW Bit0=1)
(CW Bit3=1
and
SW Bit12=1)
C D
(CW Bit5=0)
(SW Bit2=1)
(SW Bit5=0)
from any state from any state
Emergency stop
OFF3 (CW Bit2=0)
n(f)=0 / I=0
Emergency OFF
OFF2 (CW Bit1=0)
(SW Bit4=0)
B
B C D
(CW Bit4=0)
(CW=xxxx x 1 xx xxx 1 1111 )
(CW=xxxx x 1 xx xx 11 1111 )
D
(CW Bit6=0)
A
C
(CW=xxxx x 1 xx x 111 1111 )
(SW Bit8=1)
D
from any state
Fault
(SW Bit3=1)
(CW Bit7=1)
(CW=xxxx x 1 xx xxxx x 111 )
(CW=xxxx x 1 xx xxxx 1111
and SW Bit12=1)
state
condition
rising edge
the bit of
ABB Drives
communication
profile
CW = Control word
SW = Status word
n = Speed
I = Input current
RFG = Ramp function
generator
f = Frequency
RFG: OUTPUT
ENABLED
OFF2
ACTIVE
OFF3
ACTIVE
OPERATION
FAULT
READY TO
OPERATE
READY TO
SWITCH ON
NOT READY TO
SWITCH ON
SWITCH-ON
INHIBITED
OPERATION
INHIBITED
OFF1
ACTIVE
OPERATION
ENABLED
RFG: ACCELERATOR
ENABLED
MAINS OFF
ABB_Drives_comm_profile.pdf
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References
References are 16-bit words containing a sign bit and a 15-bit integer. A negative
reference (indicating reversed direction of rotation) is formed by calculating the two’s
complement from the corresponding positive reference.
ABB drives can receive control information from multiple sources including analog
and digital inputs, the drive control panel and a fieldbus adapter module (for example,
FMBT-21). To have the drive controlled through the fieldbus, you must select the module
as the source for control information, for example, reference.
44 Modbus/TCP – Communication profiles