ABB NPBA-12 Installation And Startup Manual page 33

MAINS OFF
Power ON
A B C D
(CW Bit3=0)
OPERATION
INHIBITED
operation
inhibited
from any state
OFF1 (CW Bit0=0)
OFF1
ACTIVE
n(f)=0 / I=0
(CW Bit4=0)
(CW Bit5=0)
(CW Bit6=0)
Figure 6-2 The PROFIBUS State Machine.
NPBA-12 Installation and Start-up Guide
SWITCH-ON
INHIBITED
NOT READY
TO SWITCH ON
READY TO
SWITCH ON
(SW Bit2=0)
READY TO
OPERATE
(SW Bit1=0)
(CW Bit3=1
and
SW Bit12=1)
B C D
OPERATION
C D
ENABLED
A
(CW Bit4=1)
RFG: OUTPUT
D
ENABLED
B
(CW Bit5=1)
RFG: ACCELERATOR
ENABLED
C
(CW Bit6=1)
OPERATING
D
(SW Bit6=1)
(CW Bit0=0)
(SW Bit0=0)
(CW=xxxx xxxx xxxx x110)
(SW Bit0=1)
(CW=xxxx xxxx xxxx x111)
(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)
(SW Bit8=1)
Chapter 6 – Communication
PROFIBUS
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)
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