| 摘要 |
PURPOSE:To prevent disturbance even when a monitor/controller is down by setting each control item to safe side, when the voltage of backup power source drops below a predetermined level, and stopping control. CONSTITUTION:Upon droppage of the output voltage from a battery 2 below a predetermined level(10V), a voltage drop detector 3 detects the voltage drop and produces a control signal 200 for switching the switch group contained in a control mode switching section 5 to the terminal (b) side. Relay contact ON/OFF information 301-30n for setting the under trouble control items preset in a trouble mode setting section 7 to safety side is ted through a control mode switching section 5 and inverters 91-9n to the base of transistors 81-8n. Consequently, relay contact 42 at relay contact drive section 41 is opened and door open/ close drive section 10 performs door opening operation. |
