ACS 400 User’s Manual 147
Figure 58 The state machine for evaluation of start and stop signals.
(CW xxxx xxxx xxxx x
110
)
MAINS OFF
Power ON (CW Bit0=0)
(SW Bit6=1)
(
SW Bit0=0
)
From any state
f=0 / I=0
OFF1
(CW Bit0=0)
ACD
(CW Bit3=0)
(SW Bit2=0)
(SW Bit0=1)
(CW xxxx xxxx xxxx x
111
)
(SW Bit1=1)
(CW Bit3=1 and
(CW Bit5=0)
f=0 / I=0
(SW Bit2=1)
From any state
SWITCH-ON
INHIBITED
NOT READY
TO SWITCH ON
OPERATION
INHIBITED
READY TO
SWITCH ON
READY TO
OPERATE
OPERATION
ENABLED
CD
From any state
Emergency Off
OFF2
(CW Bit1=0)
(SW Bit4=0)
OFF2
ACTIVE
From any state
Fault
(SW Bit3=1)
FAULT
(CW Bit7=1)*
(SW Bit5=0)
Emergency Stop
OFF3
(CW Bit2=0)
SW Bit12=1)
RFG: ACCELERATOR
ENABLED
(CW Bit5=1)
(CW Bit6=0)
C
(CW Bit6=1)
(SW Bit8=1)
D
A
D
OPERATING
OFF3
ACTIVE
*
This state transition also occurs if the fault is reset
from any other source (e.g. digital input).
State I = Output current
CW = Control Word f = Output frequency
SW = Status Word RFG = Ramp Function Generator
http://nicontrols.com
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