Installation and Configuration
Soloist Hardware Manual
2-16
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2.7.2.3 Hall Effect Phasing
For an AC brushless motor with an unknown Hall sequence, one of two methods can be
used to determine the proper motor connections to the Soloist.
Before running the Soloist\Programs\Samples\MsetDebug.Ab, configure the axis
parameters. For configuration information, see Getting Started in Soloist Help.
In the first method, the motor is actively driven under program control. The
Soloist\Programs\Samples\MsetDebug.Ab can be used for this purpose. You must swap
the Hall signals until they generate the sequence as defined in Figure 2-12. After the Hall
sequence is correct, the program correctly determines if a commutation offset is required.
The value of the CfgMotOffsetAng axis parameter that is required to correctly phase the
motor is indicated.
The second method is a non-powered method, using a two-channel oscilloscope and three
resistors (10 K ohm, 1/2 watt) wired in a Wye configuration. The motor is disconnected
from the controller and connected in the test configuration, as shown in Figure 2-12. The
motor leads A, B, and C and the Hall signals are identified.
Before performing the test in Figure 2-12, you must completely disconnect the motor
leads from the amplifier.
To perform the following tests, you do not need to turn the amplifier on because
Figure 2-12 provides the generated output voltage data of the amplifier as determined
by the input Hall sequences.
Connect the ends of the three resistors to three motor leads. Use one channel of the
oscilloscope to monitor motor terminal A with a Wye neutral (that is, the point where all
three resistors are connected together). Turn the shaft of the motor CW and record the
generated voltage. This voltage represents the Phase A to neutral counter EMF (CEMF).
With the second oscilloscope probe, determine the Hall switch that is in phase with this
voltage. Similarly, Phases B and C must be aligned with the other two Hall switches. This
identifies the motor and Hall lead that are in phase with each other. Any motor and Hall
lead set can be designated as Phase A. The phasing between this set and the other two sets
determines which set is designated as Phase B or C.
Refer to Figure 2-12 and note the generated output voltages of the amplifier applied to the
Hall A, B, and C connections at connector J103. For proper operation, the CEMF
generated motor phase voltages must be aligned to the amplifier
’
s generated output
voltage with the given Hall effect sequence shown in Figure 2-12.
Motor Mounting
Flange (Front View)
Motor Shaft
CW Rotation
(Positive Direction)
+ MOVE (Clockwise)
FORCER
MAGNET
TRACK
Forcer
FORCER WIRES
DANGER
Содержание SOLOIST
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Страница 50: ...Technical Details Soloist Hardware Manual 3 6 www aerotech com Figure 3 3 User Outputs J104...
Страница 77: ...Soloist Hardware Manual Soloist Options www aerotech com 4 13 Figure 4 10 Suppression for DC Brake Systems...
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Страница 88: ...Accessories Soloist Hardware Manual 5 10 www aerotech com...
Страница 96: ...Troubleshooting Soloist Hardware Manual 6 8 www aerotech com...
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