| 摘要 |
<p>PURPOSE:To enhance an energy-saving effect and to reduce the wear of a brake shoe by starting again a regenerative brake control after the prescribed time even if a regenerative brake is failed by interrupting a regenerative load. CONSTITUTION:When a regenerative load interruption is detected so that the coil 2 of a relay OPR is energized, the coil 7 of a set relay RSR is energized through a contact 2b of the relay OPR, but at this time the time delay until the coil 7 is energized is provided by using a slow movement time limiter 8. When the coil 7 is energized after the prescribed time, the contact 7a of the relay RSR is opened to deenergize the coil 2 of the relay OPR, the contact 2a of the relay OPR is opened, and the coil 7 is also deenergized. Accordingly if a brake command 1 is continued, the resetting operation is completed after the time determined by the limiter 8, and the regenerative brake control is again started.</p> |
