Alarm and Trip Counters
Protection functions increment alarm and trip event counters, both at the TeSys avatar level and overall at the TeSys island level. Counters can be reset to zero on demand.
The following tables describe counter behavior.
Counter Inputs
|
Inputs |
Description |
|---|---|
|
Alarm Counter Reset |
Resets all alarm counters (see the following table) to zero. |
|
Trip Counter Reset |
Resets all trip counters (see the following table) to zero. All avatars store the last five trip records, each containing the timestamp and cause of the trip. |
List of Alarm Counters
|
Outputs |
Description |
|---|---|
|
Thermal Overload Alarm Count |
Increments when an individual alarm is triggered. Reset by Alarm Counter Reset |
|
Jam Alarm Count |
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|
Undercurrent Alarm Count |
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Overcurrent Alarm Count |
|
|
Current Phase Unbalance Alarm Count |
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|
Ground Current Alarm Count |
|
|
All Alarms Count |
Increments when any type of protection alarm is triggered. Reset by Alarm Counter Reset. |
List of Trip Counters
|
Outputs |
Description |
|---|---|
|
Thermal Overload Trip Count |
Increments when an individual trip is triggered. Reset by Trip Counter Reset |
|
Jam Trip Count |
|
|
Undercurrent Trip Count |
|
|
Long Start Trip Count |
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|
Overcurrent Trip Count |
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|
Stall Trip Count |
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|
Current Phase Unbalance Trip Count |
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Phase Configuration Trip Count |
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|
Ground Current Detection Trip Count |
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|
Current Phase Reversal Trip Count |
|
|
Current Phase Loss Trip Count |
|
|
All Trips Count |
Increments when any type of protection trip is triggered. Reset by Trip Counter Reset. |
Records of the Last Five Trips
|
Outputs |
Description |
|---|---|
|
Trip Record Register 1 (most recent) |
First In First Out registers without reset |
|
Trip Record Register 2 |
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Trip Record Register 3 |
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Trip Record Register 4 |
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Trip Record Register 5 (least recent) |
List of Auto-Reset Counters
|
Outputs |
Description |
|---|---|
|
Thermal Protection |
Provides the number of auto-reset retry attempts for Thermal Protection functions. If there is no trip within one minute after a retry attempt, the start is considered successful and Auto Reset Retry Count is reset to 0. |
|
Electrical Protection |
Provides the number of auto-reset retry attempts for Electrical Protection functions. If there is no trip within one minute after a retry attempt, the start is considered successful and Auto Reset Retry Count is reset to 0. |
|
Load Protection |
Provides the number of auto-reset retry attempts for Load Protection functions. If there is no trip within one minute after a retry attempt, the start is considered successful and Auto Reset Retry Count is reset to 0. |