Eaton EDR-5000 Nstallation, Operation And Maintenance Manual page 416

The protection device continuously supervises the status of the inputs »Aux CLOSE-I« and »Aux OPEN-I«.
These signals are validated based on the supervision timers » t-Move CLOSE« and » t-Move OPEN« validation
functions. As a result, the switchgear position will be detected by the following signals:
Pos CLOSE
Pos OPEN
Pos Indeterm
Pos Disturb.
Pos (State=0,1,.2 or 3)
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 « State will become true. If the command is executed and properly fed back from the switchgear before the
NDETERM
timer has run down, »POS CLOSE« will become true. Otherwise, if the timer has expired »POS D
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 « State will become true. If the command is executed and properly fed back before the timer has run down,
NDETERM
»POS OPEN« will become true. Otherwise, if the timer has expired »POS D
The following table shows how switchgear positions are validated:
States of the Digital Inputs
Aux CLOSE-I
0
1
0
1
0
1
Aux OPEN-I POS CLOSE
0
1
1
0
0
1
EDR-5000
Validated Breaker Positions
POS OPEN
0 0
0 0
0 1
1 0
0 0
0 0
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« will become true.
ISTURB
POS POS Disturb
Indeterm
1 0
(while a Moving (while a Moving
timer is running) timer is running)
1 0
(while a Moving (while a Moving
timer is running) timer is running)
0 0
0 0
0 1
(Moving timer (Moving timer
elapsed) elapsed)
0 1
(Moving timer (Moving timer
elapsed) elapsed)
IM02602007E
« will become
ISTURB
POS
State
0
Intermediate
0
Intermediate
1
OPEN
2
CLOSE
3
Disturbed
3
Disturbed
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