| 摘要 |
PURPOSE:To make a concentrated decision for the deciding result of battery voltages in plural auxiliary power sources by deciding whether the battery voltage is normal or not with the input from an input terminal or individual test switch and transferring that result to the outside for information. CONSTITUTION:The voltage of battery 44 is monitored by a comparator IC during an AC power source voltage is impressed, and a signal is transferred to a relay device A for information when the voltage is larger than a specified voltage. When the switch 28 or terminals 7,8 of a connector 26 are closed, the battery 44 is connected to a dummy load R1, then if the voltage is decided as larger than the specified value by the comparator IC1, a contact point(ry3) is made to be ON but to be OFF when the capacity is insufficient, and this condition is transferred to the relay device A for information. Namely, a contact point OFF signal for no voltage is outputted from a terminal 5 of connector 26 when the battery is abnormal. In case the plural auxiliary power source units 4 are connected, if the capacity of one battery 44 among them is insufficient, a circuit is interrupted due to the contact point (ry3) is connected in series, then this condition is decided by the relay device A. An extension of unit 4 and the circuit design are thereby made easy. |
