Theory of Operation
About
What's New?
The EFX800-16 has incorporated many new updates from previous generation EFXs including:
- New Lower PCALower printed circuit assembly; generally this refers to the lower board. On treadmills, this is the motor controller unit (MCU), and on self-powered units, it is the main board in the lower section. board (LPCALower printed circuit assembly; generally this refers to the lower board. On treadmills, this is the motor controller unit (MCU), and on self-powered units, it is the main board in the lower section.) design
- Different generator/brake system, changed to a generator/brake system similar to that used on the AMTAdaptive Motion Trainer machines
- Smaller battery and improved battery charging/maintenance system
- Faster CrossRamp lift speed (2x)
- Added a service/maintenance Active Status Light (ASLActive Status Light: Service and maintenance status light.)
Operating Summary Information
Power-up Initialization State
When the user begins pedaling at speed greater than minimum, 40 strides per minute the lower circuit (LPCA) powers up and delivers power to the console, and all systems initialize.
The LPCA will remain on under battery power until the pedal speed drops below the minimum, at which time the system enters Pending Shutdown state.
Banner Default State
When the user begins pedaling at speed greater than minimum, 40 strides per minute the lower circuit (LPCA) powers up and delivers power to the console, and all systems initialize.
The LPCA will remain on under battery power until the pedal speed drops below the minimum, at which time the system enters Pending Shutdown state.
- Exercise program is the manual program.
- Goal type is time.
- Goal value is the club time limit.
- All other exercise program parameters revert to default values appropriate to the specific exercise program.
- Weight is 170 pounds or 77 kilograms.
- Age, gender, target heart rate and fitness score are unknown.
- Units, language, and optional metric are read from EEPROMElectrically erasable programmable read-only memory and is a type of non-volatile memory., as set by Owner Settings. Factory defaults for these are U.S., English, and no optional metric.
When the machine returns to Banner state after an exercise session ends, the following accumulated session data is stored in memory until the system goes through the Initialization state, or until the next user performs data entry.
- Session program.
- Session total time, including cool-down time.
- Session total distance, including horizontal, vertical, strides, revolutions, equivalent distances, etc.
- Session total calories.
- Average speed.
- Average heart rate, max heart rate, and total time spent in a heart rate zone.
- Weight, age, gender, target heart rate, parameters related to interval course profile, and fitness score.
System Component Overview
The EFX800-16 is comprised of two basic system blocks, the console and the base. The console provides the user input controls, metric indicator displays, and console-to-base communication interfaces. The console also provide the service software menus including maintaining the Error Log menu. The base receives machine operating commands and executes them. The base also monitors error conditions and sends detected error code data to the console.
Console
The console provides the user interface operational control inputs, the metric indicator information, and the console-to-base communication interface. The console Upper PCAUpper printed circuit assembly; generally refers to the console. board (UPCAUpper PCA board) sends the input control commands to the base Lower PCAPrinted circuit assembly, generally referred to as either an upper PCA or lower PCA. board (LPCA). The console also receives error code data from the base which is used to maintain the Error Log service menu. The console also controls and sends the ASLActive Status Light: Service and maintenance status light. status state (based on the received error codes) to the base.
The LPCA makes use of two main processors: the Master (also referred to interchangeably as “Major”) and Slave (also as “Minor”).
Base
The base Lower PCA (LPCALower printed circuit assembly; generally this refers to the lower board. On treadmills, this is the motor controller unit (MCU), and on self-powered units, it is the main board in the lower section.) receives machine control commands from the console and directly executes the commands to control the braking, lift operation, and power ON/OFF. The LPCA also monitors error conditions and sends the detected error event code information to the console.
The LPCA makes use of two main processors: the Master (also referred to interchangeably as “Major”) and Slave (also as “Minor”).
Communication Interface Cable
Console UPCAUpper PCA board to base LPCA communication interface cable wiring diagram.
Generator/Brake system
The EFX800-16 base generator/brake system has changed from previous generation EFXs and now uses a generator/brake system similar to the AMT machines.
Active Status Light (ASL)
Active Status Light: similar to Treadmill ASL, except that operation has been changed for self-powered machines. A separate microprocessor and software on the LPCA control the color and flashing of the LED. A button near the light is used to wake up the entire system temporarily to check its color, and to clear the status color if pressed long enough. Active Status Light processor receives simple commands from the Console, see Active Status Light (ASL).
System Wiring Diagram
