Injection molding machine with an electric drive

Apparatus for controlling an injection molding machine having an electric motor connected to drive an injection molding machine axle selected from the group consisting of an injection axle, a closure axle, an ejection axle, and a carriage unit axle, and a machine computer having an associated memory, the machine computer and associated memory for providing target values for one or more of motor control parameters selected from the group consisting of motor phase angle (.phi., motor current I, and motor velocity V, the apparatus comprising:

• a motor control drive operatively interconnected with the electric motor connected to the selected injection molding machine axle and with the machine computer, said motor control drive further including,
• (i) a drive computer separate from the machine computer,
• (ii) a recipe memory separate from said associated memory and operatively directly connected to said drive computer and connectable to the machine computer, said recipe memory configured to store the target values supplied by the machine computer,
• (iii) a selective multiple open and closed loop controller directly interconnected with, and coordinated by, said drive computer, said multiple controller including a motor phase angle .phi. controller, a motor current I controller, and a motor velocity V controller,
• wherein said interconnection between said motor control drive and the electric motor includes a signal connection and a feed back connection, and
• wherein said drive computer provides high velocity selective open and closed loop control of one or more of .phi., I and V and derives necessary target value input from data stored in said recipe memory.