Omron CJ1W-EIP21 Operation Manuals page 31

• The Servomotor or Servo Drive was changed since the data was backed up.
• The absolute encoder was set up after the data was backed up.
• The absolute data for the absolute encoder was lost.
Battery Replacement
• The Battery may leak, rupture, heat, or ignite. Never short-circuit, charge, disassemble, heat, or incin-
erate the Battery or subject it to strong shock.
• Dispose of any Battery that has been dropped on the floor or otherwise subjected to excessive shock.
Batteries that have been subjected to shock may leak if they are used.
• UL standards require that only an experienced engineer replace the Battery. Make sure that an expe-
rienced engineer is in charge of Battery replacement.
• Apply power for at least five minutes before changing the Battery. Install a new Battery within five
minutes (at 25°C) of turning OFF the power supply. If power is not supplied for at least 5 minutes, the
saved data may be lost.
• Make sure that the required data, including the user program, configurations, settings, variables, and
memory used for CJ-series Units, is transferred to a CPU Unit that was replaced and to externally
connected devices before restarting operation.
Be sure to include the tag data link settings, routing tables, and other CPU Bus Unit data, which are
stored in the CPU Unit.
Unit Replacement
• We recommend replacing the Battery with the power turned OFF to prevent the CPU Unit's sensitive
internal components from being damaged by static electricity and to prevent malfunctions. The Bat-
tery can be replaced without turning OFF the power supply. To do so, always touch a grounded piece
of metal to discharge static electricity from your body before you start the procedure.
After you replace the Battery, connect the Sysmac Studio and clear the Low Battery Voltage error.
• The absolute encoder home offsets are backed up with a Battery in the CPU Unit as absolute
encoder information. When you change the combination of the CPU Unit and Servomotor, e.g., when
you add or replace a Servomotor, define the absolute encoder home again.
Disposal
• Dispose of the product and Batteries according to local ordinances as they apply.
• The following information must be displayed for all products that contain primary lithium batteries with
a perchlorate content of 6 ppb or higher when shipped to or transported through the State of Califor-
nia, USA.
Perchlorate Material - special handling may apply.
See www.dtsc.ca.gov/hazardouswaste/perchlorate.
• The CPU Unit contains a primary lithium battery with a perchlorate content of 6 ppb or higher. Place
the above information on the individual boxes and shipping boxes when shipping finished products
that contain a CPU Unit to the State of California, USA.
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
Precautions for Safe Use
29