Methods and systems for recording operating information of an electronically commutated motor

A unit for recording operating information of an electric motor, said unit comprising:

• a motor controller communicatively coupled to an electric motor, said motor controller comprising a processing device configured to control said unit, collect operating data from an electric motor, collect motor controller in from said motor controller, and identify when a motor controller failure occurs;
• a memory device communicatively coupled to said processing device, said memory device configured to receive and store (i) motor operating information in response to identifying the motor controller failure and (ii) motor controller information for use by a successive motor controller;
• and
• a voltage protection circuit coupled to said memory device, wherein said voltage protection circuit prevents high voltage damage to said memory device.

A method for providing a system to record operating information of a rotating electric machine, said method comprising:

• configuring a processing device to collect (i) operating data from a rotating electric machine and (ii) controller data from a system controller;
• configuring the processing device to identify when a system controller failure occurs;
• configuring is memory device to receive and store (i) operating data in response to identifying the controller failure, and (ii) controller data for use by a successive system controller for controlling the system upon replacement of the system controller;
• and
• coupling a voltage protection circuit to the memory device, wherein the voltage protection prevents high voltage damage to said memory device.

A motor system comprising:

• an electric motor;
• a motor controller coupled to said electric motor and configured to communicate with said electric motor, said motor controller comprising a processing device configured to control operation of said motor system, collect operating data from said electric motor, collect motor controller information from said motor controller, and identify when a motor controller failure occurs;
• a memory device communicatively coupled, to said processing device, said memory device configured to receive and store (i) motor operating information in response to identifying the motor controller failure and (ii) motor controller information for use by a successive motor controller for controlling said unit;
• and
• a voltage protection circuit coupled to said memory device, wherein said voltage protection circuit prevents high voltage damage to said memory device.