PURPOSE: To provide the title system so designed that an operation detection sensor is set up on every channel through which each actuation of e.g. a solenoid is transmitted to warp and whether the actuation is proper or not is determined, thereby suspending a loom before the failures of a jacquard machine are introduced into woven fabrics in the form of flaws.

CONSTITUTION: Each operation detection sensor 8 set up corresponding to each solenoid 7 monitors the channel through which solenoid actuation is transmitted to warp and outputs each operation manner. Actuation signal data to solenoids are stored in an internal memory 5 after output, and from these data and data detected by the sensors, respective signals concerning the identical solenoid are compared, thereby determining whether the actuation for each transmission channel is proper or not.