Electronic control system for motor driving window blinds has connections to phase line and neutral line and connections to motor

摘要

The motor may be a single phase alternating current motor. The terminal block of the control loading circuit (4) is connected a voltage line of the three-phase supply, and the household neutral line. The control circuit has two further connections to the motor. The current return from the motor passes to the neutral line. The motor housing may have a connection to an emergency earth line. The control system (6) has a circular radio antenna (13) around the edge of the baseplate (14) and includes a communication circuit (8) and an electrical connection (7'') to a matching connection (7'). The cage (2) holding the control equipment is earthed and the control equipment may be buried in the plaster of the wall.