State Machine - ABB RETA-02 User Manual

MAINS OFF
Power ON
A B C D
(CW Bit3=0)
OPERATION
INHIBIT
operation
inhibited
from any state
OFF1 (CW Bit0=0)
OFF1
ACTIVE
(SW Bit1=0)
n(f)=0 / I=0
B C D
(CW Bit4=0)
(CW Bit5=0)
(CW Bit6=0)
state
condition
rising edge
of the bit
Figure 11. The PROFIdrive state machine
SWITCH-ON
INHIBIT
OFF1 (CW Bit0=0)
NOT READY
TO SWITCH ON
(CW=xxxx xxxx xxxx x110)
READY TO
SWITCH ON
(SW Bit2=0)
ON (CW=xxxx xxxx xxxx x111)
READY TO
OPERATE
Enable operation
(CW Bit3=1)
ENABLE
C D
OPERATION
A
(CW Bit4=1)
RFG: ENABLE
D
OUTPUT
B
(CW Bit5=1)
RFG: ENABLE
ACCELERATION
C
(CW Bit6=1)
OPERATING
D
(SW Bit6=1)
(SW Bit0=0)
(SW Bit0=1)
Main contactor ON
(SW Bit1=1)
from any state
Emergency Stop
OFF3 (CW Bit2=0)
OFF3
ACTIVE
(SW Bit5=0)
n(f)=0 / I=0
(SW Bit2=1)
INCHING 1
INCHING 2
Inching pause
(SW Bit8=1)
PROFIdrive

State Machine

CW = Control Word
SW = Status Word
n = Speed
I = Input Current
RFG = Ramp Function
Generator
f = Frequency
from any state
Fault
FAULT
(SW Bit3=1)
(CW Bit7=1)
from any state
Emergency Stop
OFF2 (CW Bit1=0)
OFF2
ACTIVE
(SW Bit4=0)
Main contactor OFF
(CW Bit4=0 Bit5=0 Bit6=0)
Inching 1 or 2 ON
(CW Bit8=1 or Bit9=1)
or
ACTIVE
Inching 1 or 2 OFF
(CW Bit8=0 or Bit9=0)
'n=0 or f =0' and 'I=0'
and inching pause expired
Communication profiles
59