Abstract: To provide a liquid composition capable of forming a catalyst layer that is excellent in resistance to hydrogen peroxide and peroxide radicals, can further increase the output voltage of a membrane/electrode assembly, and can maintain a high output voltage for a long period of time; a method for its production; and a membrane electrode assembly for a polymer electrolyte fuel cell using said liquid composition. Provided is a liquid composition to be used for forming a catalyst layer constituting an electrode of a membrane electrode assembly for a polymer electrolyte fuel cell, wherein the liquid composition comprises a liquid medium, a fluoropolymer (H) having sulfonic acid groups and ring structures, and trivalent or tetravalent cerium ions, and the content of the trivalent or tetravalent cerium ions is from 1.6 to 23.3 mol % to the sulfonic acid groups (100 mol %).

Abstract: A position-command-pulse generation unit generates a position command pulse to be output to a motor driver by advancing an initial phase thereof by a phase indicated by initial phase information preset in a device. The initial phase information indicates an arbitrary phase in a period of a half cycle of a first pulse of the position command pulse.

Abstract: An encoder input device includes a connection terminal to be connected to one of encoders and made common to a plurality of types of signal systems of the encoders, a plurality of power supplies for signals according to the plurality of types of signal systems of the encoders, and a software switch that switches connection arrangement between the connection terminal and the power supplies for signals in a software manner according to the signal system of the encoder connected to the connection terminal among the plurality of types of signal systems of the encoders.

Abstract: A position-command-pulse generation unit generates a position command pulse to be output to a motor driver by advancing an initial phase thereof by a phase indicated by initial phase information preset in a device. The initial phase information indicates an arbitrary phase in a period of a half cycle of a first pulse of the position command pulse.