| 摘要 |
PROBLEM TO BE SOLVED: To prevent an apparatus from being damaged early caused by a user's continuous use, even while an overload is being applied to a moving part such as a motor-driven bed and a motor-driven chair, without recognizing failures, in a conventional electric circuit for driving an actuator. SOLUTION: This circuit has a structure, including a posistor and an overcurrent failure self-holding circuit in an electric circuit to stop an actuator motor and display it, if an overcurrent flows through the motor by the overload and is formed, so as not to permit restart the operation until resetting has been made, and thus coping with remedies for the failure and prolonging the service life of the apparatus. |
