EMR-5000
IM02602012E
Supervision of the CLOSE command
When an CLOSE command is initiated, the »
t-Move CLOSE« timer will be started. While the timer is running, the »POS
I
NDETERM
« State will become true. If the command is executed and properly fed back from the switchgear before the
timer has run down, »POS CLOSE« will become true. Otherwise, if the timer has expired »POS D
ISTURB
« will become
true.
Supervision of the OPEN command
When an OPEN command is initiated, the »
t-Move OPEN« timer will be started. While the timer is running, the »POS
I
NDETERM
« State will become true. If the command is executed and properly fed back before the timer has run down,
»POS OPEN« will become true. Otherwise, if the timer has expired »POS D
ISTURB
« will become true.
The following table shows how switchgear positions are validated:
States of the Digital Inputs
Validated Breaker Positions
Aux CLOSE-I
Aux OPEN-I
POS CLOSE POS OPEN
POS
Indeterm
POS Disturb
POS
State
0
0
0
0
1
(while a Moving
timer is running)
0
(while a Moving
timer is running)
0
Intermediate
1
1
0
0
1
(while a Moving
timer is running)
0
(while a Moving
timer is running)
0
Intermediate
0
1
0
1
0
0
1
OPEN
1
0
1
0
0
0
2
CLOSE
0
0
0
0
0
(Moving timer
elapsed)
1
(Moving timer
elapsed)
3
Disturbed
1
1
0
0
0
(Moving timer
elapsed)
1
(Moving timer
elapsed)
3
Disturbed
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