ABB ACS850 - State Transition Diagram for the ABB Drives Profiles

326 Control through the embedded fieldbus interface
 State transition diagram for the ABB Drives profiles
The diagram below shows the state transitions in the drive when the drive has either
one of the ABB Drives profiles in use and the drive is configured to follow the
commands of the fieldbus Control Word. The upper case texts refer to the states
which are used in the tables representing the fieldbus Control and Status words. See
sections Control Word for the ABB Drives profiles on page 322 and Status Word for
the ABB Drives profiles on page 324.
MAINS OFF
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)
ABCD
(CW Bit3=0)
operation
inhibited
OFF1 (CW Bit0=0)
(SW Bit1=0)
(SW Bit0=1)
(CW Bit3=1
and
SW Bit12=1)
CD
(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
BCD
(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)
CW= Control Word
SW= Status Word
n= Speed
I= Input Current
RFG= Ramp Function
Generator
f= Frequency
ABB Drives
communication profile
SWITCH-ON
INHIBITED
NOT READY TO
SWITCH ON
READY TO
SWITCH ON
READY TO
OPERATE
OPERATION
INHIBITED
OFF1
ACTIVE
OPERATION
ENABLED
RFG: OUTPUT
ENABLED
RFG: ACCELERATOR
ENABLED
OPERATION
OFF2
ACTIVE
FAULT
OFF3
ACTIVE
state
condition
rising edge
the bitof