Checking system for checking the functional integrity of the operating magnets in a flatbed knitting machine

An electromagnetically controlled flatbed knitting machine comprising a checking system for checking the operating state of operating magnets in said machine, said system comprising:

• amplifier means for feeding pulse sequences to said operating magnets in response to respective control signals;
• control means, including at least a microprocessor and a keyboard connected thereto, for selectively providing said control signals to said amplifier means, said control signals having different frequencies according to different functions of said operating magnets;
• sensing means having outputs monitored by said microprocessor for sensing whether or not each operating magnet operates properly in response to said control signals;
• and
• display means controlled by said microprocessor in accordance with the monitored sensing means outputs for indicating whether or not each operating magnet is operating properly.