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(xi) Shot2 to Shot5 for CB#1 –settings (TD_MS2, TRR2 and others)
The ARC1 logic for shot 2-shot5 is illustrated in Figure 2.34-21. Shots 2-5 are applicable for a
CB#1 only. For example, two shots (Shot2 and Shot3, i.e., [ARC_NUM]=S3) are required
following the Shot1, the user should set the [TS_MS2]/[TS_MS3] and [TRR2]/[TRR3]. The user
should program to inject a permission signal for the Shot2 and Shot3 at PLC connection points
‘ARC1-S2 COND’ and ‘ARC1-S3 COND’, as shown in Figure 2.34-21. Note that the CB will be
tripped in three-phases forcibly even if a GEN.TRIP-A (TRIP COMMAND-A) signal is only
generated, because the ‘CB1_BRIDGE’ signal is generated during the Shot 2-Shot5.
Figure 2.34-21 ARC1 logic for Shot2 to Shot5