| 摘要 |
<p>PURPOSE:To make the lighting setting to well suit the purpose of works to be done and provide possibility of altering the lighting setting by equipping an operation switch with a branch switch for another block and a plurality of branch switches connected with relays. CONSTITUTION:Different lighting patterns for a plurality of light fixtures are previously provided for each switch 5, and each pattern is put on and off for the corresponding group of branch switches 2. Because a diode 6 for prevention of counter-flow of the current is furnished between the switches 2 constituting each group and relays connected with the corresponding light fixtures, it is possible to make an overlapped setting of the putting-on and -off without risk to generating interference with any corresponding switch 2 belonging to other group. For example, if switch 5 designated as S1 is put on, lighting with the S2 pattern can be made. It is recommended that the switch 2 group is formed from dip switches, and a switch panel can be constructed compactly.</p> |
