Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set - Manual (Page 715)

In-process Dresser
Chapter 21
21-9
Table 21.A
Dresser Parameters on the In-process Dresser Screen
This Parameter:
(paramacro system parameter)
Indicates: Range:
DRESSER/ACTIVE/INACTIVE if the in-process dresser is currently active (turned on) or inactive
(turned off). This is controlled by PAL. Active
(in-process dresser on)
Inactive
(in-process dresser off)
DRESSER HOLD/NOT HOLD if the in-process dresser is currently in the hold state. The hold state
stops the wheel dressing operation without turning off the in-process
dresser. Although both dress retract and dress retract return are
available, programmed and jog moves on the dressing axis are still
not permitted because the in-process dresser is still active. This is
controlled by PAL. Hold
(dressing infeed stopped)
Not Hold
(dressing in-process)
INITIAL WHEEL DIAMETER the starting wheel diameter that was active the last time the in-process
dresser was calibrated. When the wheel is calibrated, the control
writes the value of the new wheel diameter into this parameter. The
difference between this parameter and the “Current Wheel Diameter”
parameter is equal to the amount the wheel has been dressed since it
was last calibrated. The value of this parameter only changes when
the wheel is calibrated or the in-process dresser is deactivated. 0 to 9999.9999 [inch]
0 to 99999.999 [mm]
CURRENT WHEEL DIAMETER
(paramacro #5508)
the value of the current wheel diameter. When the wheel is calibrated,
the control copies the “New Wheel Diameter” value into this
parameter. Once the in-process dresser is enabled, this value is
reduced by the amount of wheel shrinkage as the wheel is dressed.
When the in-process dresser is disabled, the control copies the current
wheel diameter value into the “Initial Wheel Diameter” parameter. 0 to 9999.9999 [inch]
0 to 99999.999 [mm]
CURRENT DRESSER RPM the current speed of the rotating roll dresser in RPM. System Defined
* NEW WHEEL DIAMETER
(paramacro #5500)
the value of the wheel diameter before the in-process dresser is
calibrated. Once calibrated the value of this parameter is copied into
the “Initial Wheel Diameter” parameter. 0 to 9999.9999 [inch]
0 to 99999.999 [mm]
* WARNING WHEEL DIAMETER
(paramacro #5501)
a wheel diameter greater than the “Minimum Wheel Diameter”. When
the wheel is dressed down to this diameter, a warning message is
displayed. This value should be large enough so that the operator has
sufficient wheel left to finish current operations and take corrective
action before the wheel is dressed down to the “Minimum Wheel
Diameter”. Your system installer determines in PAL the control’s
response to a wheel that has been dressed down to the warning
wheel diameter. 0 to 9999.9999 [inch]
0 to 99999.999 [mm]
* MINIMUM WHEEL DIAMETER
(paramacro #5502)
the minimum acceptable wheel diameter. When the wheel is dressed
down to this diameter, a warning message is displayed. The system
installer determines in PAL the control’s response to a wheel that has
been dressed down to the minimum wheel diameter. 0 to 9999.9999 [inch]
0 to 99999.999 [mm]
* MAXIMUM WHEEL SPEED(RPM)
(paramacro #5503)
the maximum speed of the grinding wheel. This is the maximum
speed the grinding wheel is allowed to reach when constant surface
speed is turned on. On cylindrical grinders keep in mind that only one
spindle is controlled by CSS. 0 to 999999. (RPM)
* WHEEL WIDTH
(paramacro #5509)
this parameter is present only on this screen for operator convenience
in entering this parameter for later use with paramacros. 0 to 9999.9999 [inch]
0 to 99999.999 [mm]
* DRESSER ROLL DIAMETER
(paramacro #5504)
the diameter of the roll dressing tool. 0 to 9999.9999 [inch]
0 to 99999.999 [mm]
* This parameter can be configured by the operator on this screen. Other parameters are assigned by the control or PAL during calibration or dressing.