Toshiba GR200 Series - (v) Unsuccessful synchronization check; (vi) Adding other sync-conditions using PLC signals; (vii) Relay selection using PLC signals; (viii) Synchronization logic test

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 813 -
“SYNC01_SYN_CLC”.
(v) Unsuccessful synchronization check
If the injected signal “DPSY01_OEC_RCV” persists for longer than a pre-determined time, the
check logic determines that synchronization has not occurred; hence, the check logic can issue
a failure signal for the DPSY01 function. Consequently, the DPSY01 function abandons the
attempt to close the CB due to the failure in the synchronization process. The user can set the
time using the setting [SYNC01_TSYN2].
(vi) Adding other sync-conditions using PLC signals
When required, a user-preferred sync-condition can be added to the SYNCHK function using
the PLC connection points. For the SYNCHK1 logic, points “SYNC01_SCL_F_ECP,
_LPS_CL_ECP, and _SPS_CL_ECP” are provided. Similar points are also provided in the
SYNCHK2 function.
(vii) Relay selection using PLC signals
As described in 4.6.3(iv), either the SYNCHK_Ry1 or SYNCHK_Ry2 function can be chosen for
check synchronization in addition to checking the voltage condition. For the purpose of the
choice provided, see section 4.6.5.
(viii) Synchronization logic test
When required, a hypothetical sync-success signal can be issued for testing, the user can set
On for the scheme switch [SYNC01_SYNCTEST]. Note that Off should be set for the scheme
switch after testing.