JPH0271275U

JPH0271275U -

Info

Publication number: JPH0271275U
Application number: JP15097088U
Authority: JP
Priority date: 1988-11-18
Filing date: 1988-11-18
Publication date: 1990-05-30

Description

[Brief explanation of drawings]

図面は本考案の一実施例を示し、第１図は回路
図、第２図はその説明図、第３図は全体の側面図
、第４図は揺動台の平面断面図、第５図は操作レ
バーの配置図である。３０……ポテンシヨメータ、３２……制御回路
、３５……上限判別手段、３６……下限判別手段
、３７……上限値設定手段、３８……下限値設定
手段、３９……発光ダイオード。 The drawings show one embodiment of the present invention; FIG. 1 is a circuit diagram, FIG. 2 is an explanatory diagram thereof, FIG. 3 is an overall side view, FIG. 4 is a plan sectional view of the rocking table, and FIG. is a layout diagram of the operating lever. 30... Potentiometer, 32... Control circuit, 35... Upper limit determining means, 36... Lower limit determining means, 37... Upper limit setting means, 38... Lower limit setting means, 39... Light emitting diode.

Claims

[Scope of utility model registration request]

In a control device that applies a voltage to a potentiometer 30 and extracts a control signal from the potentiometer 30, upper and lower limit value setting means 37 and 38 for setting an upper limit value and a lower limit value of the control signal;
Upper/lower limit discrimination means 3 which compares the output voltage of the potentiometer 30 with the upper/lower limit values and outputs an abnormal signal when the output voltage is outside the range of the upper/lower limit values of the control signal.
5, 36. An abnormality detection device for a potentiometer.