Hitachi Relion 650 Series Technical Manual page 349

1MRK 511 557-UEN Rev. A
CB test mode can be aborted at any stage of learning by activating the ABORT input if the learning
cannot be continued or the results are not satisfactory. In such a case the function discards the
currently calculated average values and retains the set average outputs to either the previously learnt
values (if available) or user-set values, depending on AvgSetSel setting.
Depending on the Mode selection, the function calculates the operating times of the auxiliary and
primary contacts for the open command or close command or both. For example, if Mode is set to
"Open only", only the operating times corresponding to the open command are evaluated and are
updated at the corresponding average outputs. The average outputs for the close command follow
the previously learnt values if available or user-set values otherwise.
Table 301: Selection of operating time values based on Mode
Mode
Open & Close
Open
Close
Depending on the availability of auxiliary contacts, LearnNONC should be set to define the scope of
learning as follows:
Table 302: Selection of auxiliary contacts for learning purpose
LearnNONC setting
MainOnly
NO&Main
NC&Main
NO&NC&Main
Successful and unsuccessful operations
An operation is declared successful if status changes of auxiliary and primary contacts are detected
for all the phase commands within a set time of TimeOutAlarmDelay after CMDOPX (for open
operation) or CMDCLX (for close operation) information has been received from SSCPOW.
Otherwise the operation is declared as failed. This is indicated externally on the LOPSUC, LCLSUC
and LOPFAIL, LCLFAIL outputs, respectively, as shown in
Table 303: Last opening operation type
Last opening operation type
No open operation
Successful open operation
Unsuccessful open operation
Table 304: Last closing operation type
Last closing operation type
No close operation
Successful close operation
Unsuccessful close operation
Technical Manual
Open set average outputs
OPTIMNOLX, OPTIMNCLX,
OPTIMPRILX
Learnt values
Learnt values
Set Values
Learn primary contacts
yes
yes
yes
yes
LOPFAIL
0
0
1
© 2021 Hitachi Energy. All rights reserved.
Close set average outputs
CLTIMNOLX, CLTIMNCLX,
CLTIMPRILX
Learnt values
Set values
Learnt values
Learn NO (52a) auxiliary
contacts
no
yes
no
yes
Table 303 and Table
LOPSUC
0
1
0
LCLFAIL LCLSUC
0
0
1
Section 12
Monitoring
Learn NC (52b) auxiliary
contacts
no
no
yes
yes
GUID-527381B8-513D-42A2-B08F-A2781D90946F v1
304.
0
1
0
343