Aerotech UNIDEX 600 Series, Руководство пользователя

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Setup Wizard U600 User’s Guide
12-16
Aerotech, Inc.
Version 1.4
Poles
The poles field of the resolver screen within the Axis Configuration Wizard specifies the
number of total poles (NOT pole pairs) the motor contains. A non-commutated or DC
brush motor has zero poles.
Commutation Offset
The commutation offset indicates the number of electrical degrees to align the absolute
rotor reference (provided by the commutation channel) to the rotor of the motor. The
offset is entered as counts ratioed to 1024 and may be positive or negative. A 360° offset
is equal to 1024.
A 10° offset may be calculated as:
10 / 360 * 1024 = 28
Bounded by Software Limits
The Bounded by Software Limits field within the Axis Configuration Wizard is used to
specify if software limits are to be activated for the axis (true or false may be selected).
The software limits are defined by the CWEOT and CCWEOT axis parameters.
12.4.6.5. ResolverHall Configuration
Channel Number
The channel number specifies the channel number that the encoder feedback device will
be read from for this axis, as well as the specific I/O (CW/CCW/Home Limits, encoder
fault, drive fault, Auxiliary (Mode) output, and the drive enable).
Encoder Channel Assignments
Channels 1 through 4 are on the UNIDEX 600 card, channels 5 through 8 are on the
4EN-PC card configured as Board 1, channels 9 through 12 are on the 4EN-PC card
configured as Board 2, channels 13 through 16 are on the 4EN-PC card configured as
Board 3.
Resolution
The resolution field specifies the machine steps per electrical cycle of the resolver (or
inductosyn). This is entered as 10, 12, 14, or 16 (bits), which represent 1024, 4096,
16,384, and 65,536 machine counts per electrical cycle of the feedback device,
respectively.
Number of Lines/Cycle
The number of lines/cycle field specifies the number of resolver counts that are equal to
one electrical cycle of the motor. This parameter is always entered as though the feedback
device is in 16 bit (65,536) mode. The electrical cycle of the motor is ratioed to one cycle
of the feedback device, as though the feedback device is 65,536 counts per electrical
cycle of the feedback device.
Rotary Encoder
This is set equal to the number of resolver counts per revolution of the motor, divided
by the number of electrical cycles per revolution of the motor (number of poles
(pairs)).
Linear Encoder
This is set equal to the number of resolver counts per electrical cycle of the forcer
(motor).