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Status and control word in detail
SPX ADVANCED APPLICATION MANUAL
SVCH0203—October 2017 www.eaton.com
B10: FALSE = FB Control disabled TRUE = FB Control Enabled
FB Control disabled: Drive will not follow main control word
from Fieldbus. If removed while running drive will make
coasting stop.
FB Control enabled: Drive follows control word from fieldbus
B11: FALSE = FB WD Pulse Low, TRUE = FB WD Pulse High
Watch dog pulse: This pulse is used to monitor that PLC
is alive. If pulse is missing drive will go to fault state. This
function is activated by P1.12.10.3 FB WD Delay. When
value is zero pulse is not monitored.
8.2.4 FB Status word
FB Status Word
Signal
Comment
b0
Ready to switch On
0=The drive NOT ready to switch ON
1=The drive is ready to switch ON
b1
Ready to operate
0=The drive is NOT ready to run
1=The drive is ready to run
b2
Running
0=The drive is NOT running
1=The drive is running and ready to release the reference
b3
Fault active
0=No fault active
1=Fault IS active
b4
Cost stop NOT active
0=Coast stop active
1=Coast stop NOT active
b5
EM Stop not active
0=Emergency stop active
1=Emergency stop NOT active
b6
Switch On Inhibit
0=No Inhibit
1=The drive is out of fault and coast/emergency stop state.
b7
Warning
0=NO alarm
1=Alarm IS active
b8
Speed at ref
0=Speed actual is NOT equal to speed reference
1=Speed actual is equal to speed reference
b9
FB Control active
0=Fieldbus Control NOT active
1=Fieldbus Control active
b10
Above limit
Indicate if speed actual is below the limit P1.4.16
0=Speed actual is below the speed limit
1=Speed actual is above the speed limit
b11
b12
b13
b14
b15
Watch dog feedback
B00: FALSE = Not Ready to Switch On, TRUE = Ready to
Switch On
Not Ready to Switch On:
Ready to Switch On: Power supply is switched on,
electronics initialized, main contactor, if available, has
dropped out, pulses are inhibited.
B01: FALSE = Not Ready To Operate, TRUE = Ready To Operate
Not Ready To Operate:
Ready To Operate:
B02: FALSE = Drive is not operating, TRUE = Drive is
operational
Drive is not operating: Drive is not run state (modulating)
Drive is operational: Drive is in run state and modulating.
Also rotor fulx is ready and brake is opened if feedback
signal is sued.
B03: FALSE = No Fault, TRUE = Fault Present
No Fault: Drive is not on fault state.
Fault Present: Drive is in fault state.
B04: FALSE = Coast Stop Activated, TRUE = Coast Stop Not
Activated
Coast Stop Activated: “Coast Stop (OFF 2)” command
is present.
Coast Stop Not Activated: Coast stop command is not active.
B05: FALSE = Quick Stop Activated, TRUE = Quick Stop
Not Activated
Quick Stop Activated: “Quick Stop (OFF 3)” command
is present.
Quick Stop Not Activated: Quick stop command is
not active.
B06: FALSE = Switching On Not Inhibit, TRUE = Switching
On Inhibited
Switching On Not Inhibit:
Switching On Inhibited: The drive goes only again in the
“Switched On” condition with “No Coast Stop AND No Quick
Stop” followed by “ON”. This means that the “Switching On
Inhibited” bit is only set back to zero if the OFF command is
set after “No Coast Stop AND No Quick Stop”.
B07: FALSE = No Warning, TRUE = Warning Present
No Warning: There is no warning or the warning has
disappeared again.
Warning Present: Drive still works; warning in the service/
maintenance parameter;
no acknowledgement.