Mitsubishi Electric MELSEC iQ-R Series Configuration Manual page 16

[Startup and Maintenance Precautions]
CAUTION
● Do not drop or apply shock to the battery to be installed in the module. Doing so may damage the
battery, causing the battery fluid to leak inside the battery. If the battery is dropped or any shock is
applied to it, dispose of it without using.
● Startup and maintenance of a control panel must be performed by qualified maintenance personnel
with knowledge of protection against electric shock. Lock the control panel so that only qualified
maintenance personnel can operate it.
● Before handling the module, touch a conducting object such as a grounded metal to discharge the
static electricity from the human body. Failure to do so may cause the module to fail or malfunction.
[Precautions for using flexible high-speed I/O control modules]
● When performing online operations of the running module from an external device such as a personal
computer connected, read the relevant manuals carefully and ensure that the operation is safe before
proceeding.
● Before changing any setting of the module, read the relevant manuals carefully, ensure the safety, and
change the operating status of the CPU module to STOP. Especially when operating the module in the
network system, ensure the safety thoroughly because controlled machines are likely to be moved
inadvertently. Improper operation may damage machines or cause accidents.
[Precautions for using positioning modules, Motion CPU modules, and Simple Motion
modules]
● Before testing the operation, set a low speed value for the speed limit parameter so that the operation
can be stopped immediately upon occurrence of a hazardous condition.
● Confirm and adjust the program and each parameter before operation. Unpredictable movements
may occur depending on the machine.
[Precautions for using Motion CPU modules and Simple Motion modules]
● When using the absolute position system function, on starting up, and when the module or absolute
position motor has been replaced, always perform a home position return.
● Before starting the operation, confirm the brake function.
● Do not perform a megger test (insulation resistance measurement) during inspection.
● After maintenance and inspections are completed, confirm that the position detection of the absolute
position detection function is correct.
● Lock the control panel and prevent access to those who are not certified to handle or install electric
equipment.
[Precautions for using remote head modules]
● When connecting an external device with a remote head module to modify data of a running
programmable controller, configure an interlock circuit in the program of the master station to ensure
that the entire system will always operate safely. For other forms of control (such as parameter
change, forced output, or operating status change) of a running remote head module, read the
relevant manuals carefully and ensure that the operation is safe before proceeding. Improper
operation may damage machines or cause accidents.
● Especially, when a remote head module is remotely controlled by an external device, immediate
action cannot be taken if a problem occurs in the remote head module due to a communication failure.
To prevent this, configure an interlock circuit in the program of the master station, and determine
corrective actions to be taken between the external device and remote head module in case of a
communication failure.
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