Mitsubishi Electric Melsec-Q172DCPU User Manual page 65

2 SYSTEM CONFIGURATION
Operation mode 7-segment LED
Installation
mode
Mode operated
by RAM
Mode operated
by ROM
Ethernet IP
Refer to next
address display
page (c)
mode
SRAM clear
(b) Operation mode overview
• Steady "INS" display at the 7-segment LED.
• Operating system software can be installed.
• It is STOP status regardless of the RUN/STOP switch position at the front side of
Motion CPU module.
• The stop error "MULTI CPU DOWN (error code: 7000)" will occur at the other CPU.
• " . " remains flashing in the first digit of 7-segment LED.
• It operates based on the user programs and parameters stored in the SRAM built-in
Motion CPU module.
• The user programs and parameters for the ROM operation can be written to the
FLASH ROM built-in Motion CPU.
• " . " remains flashing in the first digit and steady " . " display in the second digit of
7-segment LED.
• Operation starts after the user programs and parameters stored in the FLASH ROM
built-in Motion CPU module are read to the SRAM built-in Motion CPU module at
power supply on or reset of the Multiple CPU system.
If the ROM writing is not executed, even if the user programs and parameters are
changed using the MT Developer2 during mode operated by ROM, operation starts
with the contents of the FLASH ROM built-in Motion CPU module at next power
supply on or reset.
Also, If the ROM writing is not executed, even if the auto tuning data are reflected
on the servo parameter of Motion CPU by operation in the auto-tuning setting,
operation starts with the contents of the FLASH ROM built-in Motion CPU module
at next power supply on or reset.
• Refer to next page "(c) Ethernet IP address display mode overview".
• It is STOP status regardless of the RUN/STOP switch position on the front side of
Motion CPU module.
• The stop error "MULTI CPU DOWN (error code: 7000)" will occur at the other CPU.
• " . " remains flashing in the first digit of 7-segment LED.
• The programs, parameters, motion devices(#), devices of latch data and absolute
position data of SRAM built-in Motion CPU module are cleared by turning ON the
Multiple CPU system's power supply after the rotary switch 2 is set to "C".
POINTS
(1) Be sure to turn OFF the Multiple CPU system's power supply before the rotary
switch setting change.
(2) It is recommended to shift to the mode operated by ROM after the programs
and parameters are fixed. The erasing of the programs and parameters can
be avoided even if the battery decrease. (The ROM writing cannot be
executed for the current position of the servo motor in the absolute position
system, home position and latch device. Back up them beforehand using
MT Developer2.)
Refer to Section 4.4 of the "Q173D(S)CPU/Q172D(S)CPU Motion controller
Programming Manual (COMMON)" for details of the ROM operation.
Operation overview
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