237-00156 SofTec Microsystems SRL, 237-00156 Datasheet - Page 68

• Manufacturer Part Number: 237-00156
• Description: BOARD ISOLATION FOR ST7
• Manufacturer: SofTec Microsystems SRL
• Type: Optoisolation Boardr

Specifications of 237-00156

• Contents: *
• For Use With/related Products: STMicro ST7FMC Motor Control Device
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

6 AK-ST7FMC Control Panel
6.1 Introduction
Note: the AK-ST7FMC Control Panel doesn’t reflect the full capabilities of
the ST7FMC microcontroller and uses only partially its built-in resources. To
take full advantage of the ST7FMC capabilities, it may be necessary to
bypass the AK-ST7FMC Control Panel and edit directly the ST7FMC
firmware. For instance, sinewave control of PMAC motors with sensors is not
implemented in the AK-ST7FMC Control Panel at the time of printing and
requires a separate firmware.
It can be the case that for a specific motor (e.g. PMAC or BLDC compressor
with load condition) the AK-ST7FMC Control Panel doesn’t provide enough
flexibility to be used for motor driving (start-up and/or run). In this case,
separate fine tuning of the ST7FMC firmware is needed for optimum start-up
algorithm and maximum speed.
6.1.1 Suggested BLDC Motor Learning Steps
1.
2.
3.
Run the provided AMETEK motor and use the AK-ST7FMC Control
Panel default settings to understand the interdependence of the various
parameters.
Then, run your own motor in Sensorless, Open Loop mode in order to
find the correct start-up sequence setting. Preferably, select Voltage
mode: this allows the motor to take as much current as needed (within
the maximum current limit acceptable by the motor) and ensures a
successful start-up.
Set the correct alignment parameters and acceleration phase
parameters. In the Real-Time Settings parameter group, set a duty
cycle at least equal to the acceleration phase’s. Click the “START”
Features
AK-ST7FMC User's Manual
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