ABB ACS550-01 User Manual page 176

176
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
State
State change
Path described in example
CW =
SW =
RFG = Ramp Function Generator
I = Param. 0104
f = Param. 0103
n = Speed
* Indicates the features not in
** This state transition also occurs if the fault is
reset from any other source (e.g. digital input).
Embedded Fieldbus
(SW) bits for the ABB Drives profile.
From any state
OFF3
ACTIVE
n(f)=0 / I=0
From any state
OFF1
ACTIVE
n(f)=0 / I=0
(CW Bit3=0)
(SW Bit2=0)
OPERATION INHIBITED
CONTROL WORD
STATUS WORD
CURRENT
OUTPUT FREQ
ABB DRV LIM
From any state
Emergency Off
OFF2 (CW Bit1=0)
OFF2
(SW Bit4=0)
ACTIVE
MAINS OFF
Power ON
A B* C D
OPERATION
INHIBITED
B* C* D*
(CW Bit4=0)*
C D
A
(CW Bit5=0)
D
B*
(CW Bit6=0)
RFG: ACCELERATOR
C
D
ACS550 User's Manual
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
i.e. Bit 4=1)*
RFG OUTPUT
ENABLED*
(CW=xxxx x1xx xx11* 1111
i.e. Bit 5=1)
ENABLED
(CW=xxxx x1xx x111* 1111
i.e. Bit 6=1)
(SW Bit8=1)
OPERATING
(CW)