| 摘要 |
<P>PROBLEM TO BE SOLVED: To operate the dynamic brake of a motor even in the power failure and servo amplifier failure, and to rotate the rotary shaft of the motor and to move an operation mechanism driven by the motor easily by manual operation in maintenance work even if the braking force is large. <P>SOLUTION: By turning on a relay contact 23a in the dynamic brake 20, counter electromotive force generated by the motor 2 is consumed by a resistor 22, thus operating the dynamic brake. When a motor isolation switch 36 is turned off, the dynamic brake can be released, thus easily rotating the rotary shaft of the motor and moving the operation mechanism driven by the motor. <P>COPYRIGHT: (C)2009,JPO&INPIT |
