ABB RETA-02 - State Machine

Communication profiles
59
Figure 11. The PROFIdrive state machine
‘n=0 or f =0’ and ‘I=0’
and inching pause expired
Inching 1 or 2 OFF
(CW Bit8=0 or Bit9=0)
MAINS OFF
Power ON
OFF1 (CW Bit0=0)
SWITCH-ON
INHIBIT
(SW Bit6=1)
NOT READY
TO SWITCH ON
(SW Bit0=0)
READY TO
SWITCH
ON
from any state
(CW=xxxx xxxx xxxx x110)
PROFIdrive
State Machine
READY TO
OPERATE
(SW Bit1=1)
n(f)=0 / I=0
OPERATION
INHIBIT
(SW Bit2=0)
ABCD
(CW Bit3=0)
operation
inhibited
OFF1 (CW Bit0=0)
OFF1
ACTIVE
(SW Bit1=0)
(SW Bit0=1)
(CW Bit3=1)
CD
(CW Bit5=0)
OPERATION
ENABLE
(SW Bit2=1)
(SW Bit5=0)
from any state from any state
Emergency Stop
OFF3 (CW Bit2=0)
n(f)=0 / I=0
OFF3
ACTIVE
Emergency Stop
OFF2 (CW Bit1=0)
(SW Bit4=0)
OFF2
ACTIVE
RFG: ENABLE
OUTPUT
RFG: ENABLE
ACCELERATION
OPERATING
B
BCD
(CW Bit4=0)
(CW Bit4=1)
(CW Bit5=1)
D
(CW Bit6=0)
A
C
(CW Bit6=1)
(SW Bit8=1)
D
from any state
Fault
(SW Bit3=1)
FAULT
(CW Bit7=1)
ON (CW=xxxx xxxx xxxx x111)
CW = Control Word
SW = Status Word
n = Speed
I = Input Current
RFG = Ramp Function
Generator
f = Frequency
state
condition
rising edge
the bitof
INCHING 1
ACTIVE
Inching 1 or 2 ON
(CW Bit4=0 Bit5=0 Bit6=0)
Enable operation
Main contactor ON
Main contactor OFF
(CW Bit8=1 or Bit9=1)
or
INCHING 2
Inching pause