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2 SYSTEM CONFIGURATION
(5) 7-segment LED display
The LED displays/flashes in the combination with errors.
Item 7-segment LED Remark
Start
Initializing
It takes about 10 seconds to initialize
(RUN/STOP display).
Execute the power cycle of the Motion controller
if the operation stopped at initializing. It may be
Motion controller's hardware fault when it is not
improved.
Explain the error symptom (LED display) and get
advice from our sales representative for the
modules with failure.
Normal
"
" remains flashing Normal operation
Installation mode
Steady "INS" display,
"
" remains flashing
Mode to install the operating system software via
personal computer.
Mode operated by
RAM
"
" remains flashing
Mode to operate based on the user programs
and parameters stored in the RAM built-in Motion
controller.
Operation
mode
Mode operated by
ROM
Steady " . " display,
"
" remains flashing
Mode to operate after the user programs and
parameters stored in the FLASH ROM built-in
Motion controller are read to the RAM built-in
Motion controller.
STOP
Steady "STP" display
Stopped the Motion SFC program with the PLC
READY flag (M2000) OFF.
RUN
Steady "RUN" display
Executed the Motion SFC with the PLC READY
flag (M2000) ON.
Early stage warning
(2.7V or less)
Steady "BT1" display
Displayed at battery voltage 2.7V or less.
Refer to Section "6.5 Battery".
Battery
error
Final stage warning
(2.5V or less)
Steady "BT2" display
Displayed at battery voltage 2.5V or less.
Refer to Section "6.5 Battery".
Operating system software
not installed
"A00" remains flashing
It becomes the status of installation mode when
the operating system software is not installed.
System setting error
" AL" flashes 3 times
Steady " L01" display
System setting error of the Motion controller
Refer to the "Q173DCPU/Q172DCPU Motion
controller Programming Manual (COMMON)" for
details.
Servo error
" AL" flashes 3 times
Steady " S01" display
Servo error of the Motion controller
Refer to the Programming Manual of the
operating system software used for details.
WDT error
Steady "..." display
Hardware fault or software fault
Refer to the Programming Manual of the
operating system software used for details.