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ACH550-UH User’s Manual
Fieldbus adapter
The state diagram below describes the start-stop function of
CONTROL
WORD
(CW)
and
STATUS
WORD
(SW) bits.
(CW xxxx x1xx xxxx x110)
MAINS OFF
Power ON
(CW Bit0=0)
(SW Bit6=1)
(SW Bit0=0)
From any state
n(f)=0 / I=0
OFF1 (CW Bit0=0)
A
C
D
(CW Bit3=0)
(SW Bit2=0)
(SW Bit0=1)
(CW= xxxx x1xx xxxx x111)
(SW Bit1=1)
(CW Bit3=1 and
(CW Bit4=0)
n(f)=0 / I=0
From any state
SWITCH-ON
INHIBITED
NOT READY
TO SWITCH ON
OPERATION
INHIBITED
READY TO
SWITCH ON
READY TO
OPERATE
RFG OUTPUT
ENABLED
C D
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=xxxx x1xx xx11 1111)
(CW Bit6=0)
C
(CW=xxxx x1xx x111 1111)
(SW Bit8=1)
D
B
D
OPERATING
OFF3
ACTIVE
KEY
State
State change
CW =
CONTROL
WORD
SW =
STATUS
WORD
RFG = Ramp Function Generator
I = Param. 0104
CURRENT
f = Param. 0103
OUTPUT
FREQ
n = Speed
(SW Bit2=1)
OPERATION
ENABLED
(CW=xxxx x1xx xxx1 1111)
A
(CW Bit5=0)
C D
B
B
(SW Bit1=0)
OFF1
ACTIVE
OPERATION
INHIBITED
Summary of Contents for ACH550-UH HVAC
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Page 8: ...1 8 ACH550 UH User s Manual Table of contents ...
Page 32: ...1 32 ACH550 UH User s Manual Installation ...
Page 66: ...1 66 ACH550 UH User s Manual Application macros ...
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Page 333: ...ACH550 UH User s Manual 1 333 Technical data ...