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11
MAINTENANCE AND INSPECTION
In order that you can use the programmable controller in normal and optimal condition
at all times, this section describes those items that must be maintained or inspected
daily or at regular intervals.
CAUTION
In order to ensure safe operation, read the manual carefully to
acquaint yourself with procedures for program change, forced
outputs, RUN, STOP, and PAUSE operations, etc., while operation
is in progress.
Operation mistakes could cause damage to the equipment and
other problems.
Never try to disassemble of modify module. It may cause product
failure, malfunction, fire or cause injury.
Use any radio communication device such as a cellular phone or a
PHS phone more than 25cm (9.85 inch) away in all directions of
the programmable controller.
Failure to do so may cause a malfunction.
Completely turn off the externally supplied power used in the
system before mounting or removing the module. Not doing so
could result in damage to the product.
Note that the module can be changed online (while power is on) in
the system that uses the CPU module compatible with online
module change or on the MELSECNET/H remote I/O station. Note
that there are restrictions on the modules that can be changed
online (while power is on) and each module has a predetermined
changing procedure.
Note that online (while power is on) replaceable modules are
restricted, and the replacement procedure is determined for each
module
( Section 12.4.1).
Do not mount/remove the module onto/from base unit or terminal
block more than 50 times (IEC 61131-2 compliant), after the first
use of the product.
Failure to do so may cause the module to malfunction due to poor
contact of connector.
Before touching the module, always touch grounded metal, etc. to
discharge static electricity from human body.
Failure to do so may cause the module to fail or malfunction.
Do not drop or impact the battery installed to the module.
Doing so may damage the battery, causing battery liquid to leak in
the battery.
Do not use the dropped or impacted battery, but dispose of it.
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