Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set User Manual
Page 853

Error and System Messages
Section 16
16-33
Message
Description
PAL PAGE WAITING - EXIT MONITOR
A PAL display page is being overwritten by the current screen. Exit the search monitor utility to
see the screen PAL is attempting to display.
PAL PAGE WAITING - SCREEN HAS PROMPT
A PAL display page is being overwritten by the current screen.
PAL PROM CHECKSUM ERROR
Checksum error in the PAL PROM memory. This indicates PAL has been loaded successfully
however it has failed to pass verification. Check if your flash sticks are installed properly and
are not damaged. Attempt to download a copy of the same PAL image from another project.
PAL SOURCE NOT DOWNLOADED TO CNC
The PAL search monitor utility can not be accessed. The PAL search monitor utility requires the
PAL source code be downloaded with the built PAL program.
PAL SOURCE NOT LOADED
The copy of PAL in flash does not contain source programs.
PAL SOURCE REV. MISMATCH -- CAN’T MONITOR
PAL source code in the control does not match the revision of the CNC executive. The PAL
code may execute if all of the PAL system flags exist but the monitor cannot be used.
PAL USING MEMORY - REFORMAT
The AMP parameter allowing PAL to be stored in RAM memory has been enabled. This
changes the amount of RAM memory available for part program storage, requiring the RAM disk
to be reformatted. Part programs should have been backed up prior to this.
PARAMETER ASSIGNMENT SYNTAX ERROR
A block that assigns Paramacro parameters has been entered incorrectly.
PARAMETER NUMBER NOT FOUND
The AMP parameter number being searched for through the control’s patch AMP utility does not
exist in the system.
PARAMETER VALUE OUT OF RANGE
The value entered for the selected AMP parameter or paramacro parameter is less than or
greater than the allowed legal value.
PARENTHESIS INPUT ERROR
Parentheses have been entered incorrectly in a program block or calculation operation. Correct
the use of the parenthesis; verify they are in matched pairs.
PARITY ERROR IN PROGRAM
A serial communications error has occurred. A data parity error occurred while sending or
receiving data. This can result in a corrupted file, or the entire date transfer operation may be
aborted by the control.
PARK AXIS MOTION NOT ALLOWED
Axis motion was programmed for a parked axis in a dual axis group. When both master and
slave axes are parked, no axis motion is allowed on a parked axis in a dual group.
PART PROGRAM NOT SELECTED
An attempt was made to execute a program or check a program before a program was selected
for execution.
PART ROTATION FORMAT ERROR
In part rotation blocks (G68, G69), only plane changes and mode changes including inch/metric
and absolute/incremental are permitted. Any commands other than normal motion commands
and the motion G-codes (G00, G01, G02, and G03) are not permitted.
PASSWORD PROTECTED
When assigning password protectable features to an access level, an attempt was made to
assign a feature to a different access level when the currently active password does not have
access to the feature. You can assign features to other access levels only when you have
access to that feature yourself.
PEAK CURRENT NOT 300%
The axis for a 1394 or 9/440 is not AMPed to have the PEAK CURRENT set to 300%. This
misconfiguration forces the control into E--Stop.
PERIPHERAL DEVICE ERROR
An illegal communication attempt was made with a peripheral device, for example, attempting to
outpu
t to a tape reader or input from a tape punch.
PLANE SELECT ERROR
An attempt was made to change planes during cutter compensation (TTRC), between QPP
blocks, or between chamfer and corner rounding blocks. This error also will occur if G17 or G19
planes are selected on a lathe.
PLEASE WAIT FOR CLEARING OF PAL MEMORY
PAL is being erased in preparation for a PAL download.
PLUNGE MOTION NOT ALLOWED
The final plunge position must be different from the start point of the cycle. This message can
occur if the plunge axis is not programmed in the entry block to G89 mode, or if the plunge axis
increment is zero, or if the final plunge axis position is the same as the start point of the cycle
block during G89 mode.