| 摘要 |
PROBLEM TO BE SOLVED: To provide a controller for a hydraulic elevator suitable for inexpensive and highly safe work that is required for measurement work for overstroke of a plunger and elongation of a rope. SOLUTION: A controller for a hydraulic elevator equipped with stop circuits 7b, 8b, 13b that stop elevation of a car 1 when any one of an up limit switch 7 and a plunger limit switch 8 operates comprises a plug 11A comminicated with the inside of a car 5 from each of contact terminals of the switches 7, 8 and short-circuit switches 10A, 10B for the short-circuit of at least one of the switches 7, 8 via a jack 11B fitted to the plug 11A. |
