Rockwell Automation 8510 AC Spindle Drive System Programming Manual - Manual (Page 33)

Programming
Chapter 2
2-30
Encoder Lines
The number of lines or primary counts per revolution from the feedback
device is defined with this parameter. For an optical encoder, this is the
number of lines on the A channel of the encoder disk. For the high
resolution magnetic feedback, it is the number of teeth on the gear. This
parameter must be specified or spindle orient will not function.
Data Range: 0000 to 8192
Default Value 0000
Encdr Phasing
Allows the polarity of the feedback data to be reversed without physically
reversing the wires from the feedback device.
Possible Choices: FORWARD, REVERSE
Default Value
FORWARD
ORIENT TUNE
This menu selects the items needed to setup encoder based spindle orient
operation. Refer to Chapter 3 for a more detailed description of orient
mode tuning.
Position Data
Defines the source of orient position angle command. If a preset angle is
chosen, the actual angle is specified with the following parameter. The
other choices define the format of the optional 16 bit digital input data.
Either BCD or binary formats can be chosen. If “BCD” is chosen, one
LSB = 360 degrees / 10,000 or 0.036 degrees. If binary is chosen, one
LSB = 360 degrees / 2
16 or 0.0055 degrees. The data read at the inputs is
defined in degrees of angular displacement from the zero reference of the
spindle encoder. Also, if either “BCD” or “BINARY” are selected, it is
not possible to use digital velocity commands.
Possible Choices: PRESET ANGLE, BCD INPUT, BINARY INPUT
Default Value
PRESET ANGLE
Preset Angle
This parameter specifies a preset, internally stored orient position. The
data variable is expressed in degrees of angular displacement from the
zero reference of the spindle encoder.
Data Range: DEG 000.000 to 359.999
Default Value 000.000
Orient Speed
Defines the spindle rpm from which the orient sequence will start. When
the Orient Command is input, the spindle will decelerate to this speed
before beginning the orient operation.
Data Range: RPM 000 to 999
Default Value 060