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Apparatus
Scale
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3.8.3.3.
Access to saved data from the system
When the event associated with the stop event occurs or a stop command is received, the following data are saved in the record-
ing block:
- Data logger Trigger, which indicates the type of stop event (trigger) that has prompted the stoppage of the data logger;
- Time-stamp of the stop event (trigger) (day/hour + minutes/seconds/milliseconds)(4 words);
- Data logger max file, which indicates which is the max file with consistent data;
- Data logger max address, which indicates the max address number of a block with consistent data.
The following information is also stored:
- sample of currents L1, L2, L3, Ne
- V12, V23, V31 voltage samples
- digital inputs/outputs (among 16 possible options, e.g. inputs/outputs for Zone Selectivity, contact status, ...)
- alarms1 (among 16 possible options, e.g. L timing, G alarm, Prealarm)
- allarmi2 (tra 16 possibili. Es: UF timing, OV timing, Frequency error, RP timing)
- trips (among 16 possible options, e.g. tripping of L, S, I, G, UV, OF, ...).
The recordings are available in the protection release for as long as the unit is on (the data are lost in the absence of Vaux).
Using Ekip Connect SW, the operator can perform a Download so that all the information in the recording can be stored in a single
file (.abb format) and consulted with SD-DataViewer SW.
The next recording will be enabled following a Restart Trigger command.
3.8.3.4.
Example of data logger operation
The following figure shows an example of how a trigger works, the data logger’s function, the effect of the stopping delay and of
the restart and subsequent stop commands on the data saving procedure
Samples
available
Samples
available
Samples
Trigger
Waiting Trigger
Data logger triggered
Data logger stopped
Modbus commands
Stopping delay
Restart
Restart
Stop
Data logger enabled
3.8.4. Zone selectivity
The LSI, LSIG and LSIRc versions of releases PR333/P and PR332/P possess inputs and outputs for the Zone selectivity function.
Name
Type
Description
K51/SZin (K51/DFin)
Digital input
Zone selectivity: input for protection S or “direct” “forward” input for protection
D
K51/Gzin (K51/DBin)
Digital input
Zone selectivity: input for protection G or “reverse” “backward” direction input
for protection D
K51/SZout (K51/DFout)
Digital output
Zone selectivity: output for protection S or “direct” “forward” output for protec-
tion D
K51/GZout (K51/DBout) Digital output
Zone selectivity: output for protection G or “reverse” “backward” output for
protection D
The various different selectivity functions only operate if the protection release is powered by Vaux.
The digital output of each selectivity channel can be connected to up to 20 protection releases on the supply side in the selectiv-
ity chain.
The maximum length of cable for zone selectivity, between two units, is 300 meters. Use corded shielded two-wire cable (per
esempio cavo bifilare BELDEN 8762/8772). The shield must only be earthed on the circuit-breaker of the protection release on
the supply side (ZSI side).
The operating mode is described in the chapters dedicated to each zone selectivity function: S (par. 1.6.3.3), G (1.6.8.2) and D
(1.6.5.2).
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