Automatic door operator including electronic travel detection

摘要: The present invention is an automatic door operator which includes obstruction detector for at least stopping the motor when detected speed indicates a torque greater than selected closing limit while door, and opening door. based upon predetermined count of electrical pulses corresponding to shaft rotation in order smooth noise. Selection number per enables same controller control motors operating on either 60 Hz or 50 power. A travel permits identification plurality regions adaptive limits. counter may also be employed detection fully opened closed can used four-pole six-pole via manual type selection switch, selects table.