ABB ACS560 - The State Diagram

Fieldbus control through a fieldbus adapter 477
 The state diagram
ABCD
CD
B
BCD
D
A
C
D
SWITCH-ON
INHIBITED
NOT READY TO
SWITCH ON
READY TO
SWITCH ON
READY TO
OPERATE
OPERATION
INHIBITED
OFF1
ACTIVE
OPERATION
D
RFG: OUTPUT
D
RFG: ACCELERATOR
D
OPERATION
OFF2
ACTIVE
FAULT
OFF3
ACTIVE
MAINS OFF
SW b6=1
SW b0=0
CW b0=0
CW=xxxx x1xx xxxx x110
SW b0=1
SW b1=1
CW=xxxx x1xx xxxx 1111
CW=xxxx x1xx xxxx x111
CW = Control word
SW = Status word
bx = bit x
n= Speed
I = Input Current
RFG = Ramp Function
Generator
f = Frequency
SW b2=0
from any state
Fault
from any state
from any state
SW b1=0
n(f) = 0 / I = 0
SW b5=0
Emergency stop
OFF3 (CW b2=0)
SW b2=1
CW=xxxx x1xx xxx1 1111
CW=xxxx x1xx xx11 1111
CW b4=0
CW b5=0
CW b6=0
OFF1 (CW b0=0)
from any state
CW b3=0
n(f) = 0 / I = 0
STATE
condition
rising edge of
bit
operation
inhibited
Power ON
SW b3=1
CW b7=1
Emergency stop
OFF2 (CW b1=0)
SW b4=0
SW b8=1
CW=xxxx x1xx x111 1111