Precor GEN06 Series Service Manual page 134

Console to Base Interface
The console processor (upper PCA board
automated control to the system. The console processor communicates with the base pro-
cessor (Lower PCA
The two processors communicate via a serial data stream. When the user makes a request via
a machine control or the keypad, the console processor communicates the command to the
processor in the lower electronics module.
When the lower processor receives a command the lower control module performs the
machine function. The console processor continues to monitor machine controls, keypad
entry, lower board status, and provide user feedback information.
The lower board base processor also provides machine operation and error status (error log
codes) to the console processor.
1
Upper PCA board
2
Lower 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.
Contact Precor Customer Support at support@precor.com or 800.786.8404 with
any questions.
2
"LPCA ") which then performs the actual machine function.
1
"UPCA ") provides user input, user display and
9 Theory of Operation
Console Operation
Page 127