Toshiba GR-200 Series Instruction Manual page 512

Closing Blocking:
F27L:
F52VT:
Sign "•":
Sign "+":
†Note: When CB (��0) is open, logic level of ��0
(��0) is closed, logic level of ��0⁡ is "1".
‡Note: For example, on the left-hand side of equation (4.2-5), "Opening" reflects the
control direction of CB (��0).
For example in equation (4.2-12), the interlock condition for DS (Q1) is satisfied when CB
(Q0), DS (Q2), ES for the Bus-bar1-A (Q15), ES (Q52) and ES (Q53) are open. In addition, the
interlock condition for DS (Q1) is also satisfied when DS (Q2), CB (Q0), DS (Q9), CB (Q0), DS
(Q1), and DS (Q2) are closed.
State of Protection lockout relay ("Off" state means active.)
State of under voltage relay ("On" state means no voltage.)
State of VT MCB switch
Interlock operator "AND"
Interlock operator "OR"
̅̅̅̅ ⁡ is "1". On the other hand, when CB
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6F2T0200 (0.15)
GRE200 (1,2)