| 摘要 |
A synchronization control device and a synchronization control method are provided in which it includes controllers Am and As 1 of a master section and a slave section for accurately synchronizing rotational frequency and rotation phases of driving electric motors Mm and Ms 1. The controller As 1 includes rotational frequency detectors Ss 1, Fs 1, a master phase counter Cm 1, and a slave phase counter Cs 1, and detects at all times both of a rotational frequency and a rotation phase of the electric motors Mm of the master based upon an output of the rotary encoder Pm, and further detects at all times both of a rotational frequency and a rotation phase of the electric motor Ms 1 of the slave. A phase deviation calculator Hs1 is provided to calculate synchronization phase deviation at all times, and when a switch RYs 1 is actuated, it corrects an output of the rotational frequency detection means Ss 1 based upon the phase deviation and matches origins of the electric motors of the master section and the slave section to shift the operation to synchronization control.
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