Mitsubishi Electric MELDAS C6 Instruction Manual page 488

Error No.
P 40
P 60
P 62
P 65
P 70
P 71
P 72
P 90
P 93
P111
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Details
PREREAD BL. ERR
When cutter compensation is executed‚
there is an error in the pre-read block and
so the interference check is disabled.
OVER CMP. LENG.
The commanded movement distance is
31
excessive. (Over 2 )
F-CMD. NOTHING
No feed rate command has been issued.
NO G05P3 SPEC
ARC ERROR
There is an error in the arc start and end
points as well as in the arc center.
ARC CENTER
The arc center is not sought during
R-specified circular interpolation.
NO HELICAL SPEC
A helical command has been issued
though it is not included in the
specifications.
NO THREAD SPEC
A thread cutting command has been
issued though it is not included in the
specifications.
SCREW PITCH ERR
The screw pitch has not been set
correctly when the thread cutting
command is issued.
PLANE CHG (CR)
Plane selection commands (G17, G18,
and G19) were issued when a coordinate
rotation command (G68) was issued.
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7. List of Alarms
7.10 Program Error
• Review the program.
• Review the axis address command.
• The default movement modal command at
power on is G01. This causes the machine
to move without a G01 command if a
movement command is issued in the
program, and an alarm results. Use an F
command to specify the feed rate.
• Specify F with a thread lead command.
• Check the high-speed mode III
specifications.
• Check the numerical values of the
addresses that specify the start and end
points as well as the arc center in the
program.
• Check the "+" and "–" directions of the
address numerical values.
• Check the numerical values of the
addresses in the program.
• Check the helical specifications.
• An Axis 3 command was issued by the
circular interpolation command. If there is
no helical specification, the linear axis is
moved to the next block.
• Check the specifications.
• Issue the thread cutting command and then
set the screw pitch command properly.
• Before issuing the plane selection
commands, issue G68 and then G69
(coordinate rotation cancel).
IV - 72
Remedy