Toshiba GR200 Series - (iii) CB decision logic

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 536 -
supervision feature is required; set the time for the setting [TCBSV] to define the monitoring
period, which the user can have an option among 0 to 100 sec.
(iii) CB decision logic
Figure 2.38-1 shows the decision logic of the PROT_COMMON and outputs the decision state
of the CB: CB-A_CLOSE, CB-B_CLOSE, and others.
For the operation, the user should inject signals of CB states for the following PLC
connection points: ‘CB1-A NO CONT’, ‘CB1-A NC CONT’ and others. Note that a common point
is ready for the CB designed to three-phase tripping: CB1-NO CONT’ and ‘CB1-NC CONT’.