| 摘要 |
PURPOSE:To ensure the safety of a building by detecting the occurrence of a hazard, keeping an automatic door regularly holding close state in open state, and releasing the open state after a determined time. CONSTITUTION:A regularly opened contact DSA, a switch OLS and a relay OP are mutually connected in series between DC power source terminals P, N, and a regularly opened contact T1A is connected in parallel to the regularly opened contact DSA. A regularly closed contact T2a1, a regularly closed contact CLa, and a timer T1 are mutually connected in series between the connecting point between the regularly opened contact DSA and the regularly opened con tact T1A and the DC power source terminal N. A regularly closed contact T1a, a regularly closed contact DSa, a switch CLS, a regularly closed contact Sa1, and a relay CL are mutually connected in series between the DC power source terminals P,N. Further, a regularly opened contact ESA, a regularly closed contact T2B2, and a relay S are connected in series between the DC power source terminals P, N, and a regularly opened contact SA1 is connected in parallel to the regularly opened contact ESA. |
