State Transition Diagram For The Abb Drives Profiles - ABB ACS850 Manual

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
the ABB Drives profiles
MAINS OFF
Power ON
A B C D
(CW Bit3=0)
OPERATION
INHIBITED
operation
inhibited
from any state
OFF1 (CW Bit0=0)
OFF1
ACTIVE
n(f)=0 / I=0
B C D
(CW Bit4=0)
(CW Bit5=0)
(CW Bit6=0)
on page 324.
SWITCH-ON
INHIBITED
(CW Bit0=0)
NOT READY TO
SWITCH ON
(CW=xxxx x1xx xxxx x110)
READY TO
SWITCH ON
(SW Bit2=0)
(CW=xxxx x1xx xxxx x111)
READY TO
OPERATE
(CW=xxxx x1xx xxxx 1111
and SW Bit12=1)
(SW Bit1=0)
(CW Bit3=1
and
SW Bit12=1)
OPERATION
C D
ENABLED
A
(CW=xxxx x1xx xxx1 1111)
RFG: OUTPUT
D
ENABLED
B
(CW=xxxx x1xx xx11 1111)
RFG: ACCELERATOR
ENABLED
C
(CW=xxxx x1xx x111 1111)
OPERATION
D
on page
(SW Bit6=1)
(SW Bit0=0)
(SW Bit0=1)
from any state
(SW Bit1=1)
from any state from any state
Emergency Stop
OFF3 (CW Bit2=0)
OFF3
ACTIVE (SW Bit5=0)
n(f)=0 / I=0
(SW Bit2=1)
(SW Bit8=1)
322 and Status Word for
ABB Drives
communication profile
CW= Control Word
SW= Status Word
n= Speed
I= Input Current
RFG= Ramp Function
Generator
f= Frequency
Fault
FAULT
(SW Bit3=1)
(CW Bit7=1)
Emergency OFF
OFF2 (CW Bit1=0)
OFF2
ACTIVE (SW Bit4=0)
state
condition
rising edge
of the bit