| 摘要 |
<P>PROBLEM TO BE SOLVED: To enhance time continuity and reliability of an output since although the output is held and a switch is inserted into an input side in a system having a voltage input module doubled so as to avoid abrupt change in output during switching of a module, time continuity of the output becomes worse owing to an increase in holding time and an off failure of the switch cannot be detected. <P>SOLUTION: When a voltage input module is replaced, a standby-side module is connected to a signal source after a capacitor of a filter in the standby-side module is charged or discharged to match outputs of a control-side module and the standby-side module with each other. The reliability can be enhanced since there is no transient change, an output holding time is shortened, and the switch on the input side is eliminated. <P>COPYRIGHT: (C)2012,JPO&INPIT |
