ABB ACS550-01 User Manual page 193

ACS550 User's Manual
The state diagram below describes the start-stop function of
and
STATUS WORD
Emergency Stop
OFF3 (CW Bit2=0)
(SW Bit5=0)
OFF1 (CW Bit0=0)
(SW Bit1=0)
KEY
CW =
SW =
RFG = Ramp Function Generator
I = Param. 0104
f = Param. 0103
n = Speed
(SW) bits.
From any state
OFF3
ACTIVE
n(f)=0 / I=0
From any state
OFF1
ACTIVE
Power ON
n(f)=0 / I=0
(CW Bit3=0)
(SW Bit2=0)
OPERATION INHIBITED
(CW Bit4=0)
(CW Bit5=0)
(CW Bit6=0)
State
State change
CONTROL WORD
STATUS WORD
CURRENT
OUTPUT FREQ
From any state
Emergency Off
OFF2 (CW Bit1=0)
OFF2
(SW Bit4=0)
ACTIVE
MAINS OFF
A B C D
OPERATION
INHIBITED
B C D
C D
A
D
B
RFG: ACCELERATOR
C
D
CONTROL WORD
From any state
Fault
(SW Bit3=1)
FAULT
(CW Bit7=1)
SWITCH-ON
(SW Bit6=1)
INHIBITED
(CW Bit0=0)
NOT READY
(SW Bit0=0)
TO SWITCH ON
(CW xxxx x1xx xxxx x110)
READY TO
(SW Bit0=1)
SWITCH ON
(CW= xxxx x1xx xxxx x111)
READY TO
(SW Bit1=1)
OPERATE
(CW Bit3=1 and
SW Bit12=1)
OPERATION
(SW Bit2=1)
ENABLED
(CW=xxxx x1xx xxx1 1111)
RFG OUTPUT
ENABLED
(CW=xxxx x1xx xx11 1111)
ENABLED
(CW=xxxx x1xx x111 1111)
(SW Bit8=1)
OPERATING
Fieldbus Adapter
193
(CW)