
B-3
Sequencing Logic
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames E & F
State Outputs of the SEQUENCING LOGIC
Function Block
The following table shows the states of individual parameters for the SEQUENCING LOGIC function
block required to produce the condition of the MAIN SEQ STATE parameter.
START
DISABLED
START
ENABLED
SWITCHED
ON
READY ENABLED F-STOP
ACTIVE
TRIP
ACTIVE
TRIPPED
Tripped
FALSE
FALSE
FALSE
FALSE
FALSE
FALSE
TRUE
TRUE
Running
FALSE
FALSE
FALSE
FALSE
TRUE
FALSE
FALSE
FALSE
Jogging
FALSE
FALSE
FALSE
FALSE
Note 1
FALSE
FALSE
FALSE
Stopping
FALSE
FALSE
FALSE
FALSE
Note 2
TRUE
FALSE
FALSE
Output
Contactor
Depends
on
previous
state
Depends
on
previous
state
TRUE
TRUE
TRUE
TRUE
TRUE
FALSE
Switch On
Enable
FALSE
TRUE
TRUE
TRUE
TRUE
TRUE
TRUE
FALSE
Switched
On
FALSE
FALSE
TRUE
TRUE
TRUE
TRUE
TRUE
FALSE
Ready
FALSE
FALSE
FALSE
TRUE
TRUE
TRUE
TRUE
FALSE
Healthy
TRUE
TRUE
TRUE
TRUE
TRUE
TRUE
FALSE
FALSE
Note 3
Table B-2 Parameter States for the MAIN SEQ STATE Parameter