Restoring Data; Battery Replacement; Unit Replacement; Disposal - Omron NJ501-1 Series User Manual

Restoring Data

• You cannot back up, restore, or compare some or all of the settings for certain slaves and Units. Also,
you cannot back up, restore, or compare data for disabled slaves or Units. After you restore data, suf-
ficiently confirm that operation is correct before you start actual operation.
• The absolute encoder home offsets are backed up with a Battery in the CPU Unit as absolute
encoder information. If any of the following conditions is met, clear the absolute encoder home offsets
from the list of data items to restore, and then restore the data. Then, define the absolute encoder
home again. If you do not define home, unintended operation of the controlled system may occur.
• 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.
• 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.

Unit Replacement

• 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.
• 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 California, 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.
NJ-series CPU Unit Hardware User's Manual (W500)
Precautions for Safe Use
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