Microchip Technology MCP6 series Manual de usuario Pagina 6

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AN900
DS00900A-page 6 2004 Microchip Technology Inc.
FIGURE 6: MAIN LOOP, FAULT AND CONTROL SERVICE ROUTINES
Fault activity?
Key activity?
Initialize
Overcurrent Fault?
Overtemperature
Fault?
Overvoltage Fault?
Blink LED1
Blink LED2
Blink LED3
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
FWD/REV key?
Toggle FR_Key
Status
Coast Motor
Motor speed = 0?
Toggle Direction bit
and LED4
Accelerate Motor
to Set Speed
Is status Run?
Accelerate Motor
to Set Speed
No
Yes
No
Yes
No
Yes
B
Main Loop
Coast Motor
to 0
(Run/Stop Key)
Direction and Speed Change/Key Service
B
A
A
Return to
Main Loop
Return to
Main Loop
Fault Service
Main Loop
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