Mitsubishi Electric MELSEC iQ-R RD78G4 User Manual page 11

[Computer Connection Precautions]
CAUTION
● When connecting a personal computer to a module having a USB interface, observe the following
precautions as well as the instructions described in the manual for the personal computer used.
Failure to do so may cause the module to fail.
(1) When the personal computer is AC-powered
When the personal computer has a 3-pin AC plug or an AC plug with a grounding wire, connect the
plug to a grounding receptacle or ground the grounding wire. Ground the personal computer and
the module with a ground resistance of 100 ohms or less.
When the personal computer has a 2-pin AC plug without a grounding wire, connect the computer
to the module by following the procedure below. For power supplied to the personal computer and
the module, using the same power source is recommended.
1. Unplug the personal computer from the AC receptacle.
2. Check that the personal computer is unplugged. Then, connect the personal computer to the
module with a USB cable.
3. Plug the personal computer into the AC receptacle.
(2) When the personal computer is battery-powered
The personal computer can be connected to the module without taking specific measures.
For details, refer to the following.
Precautions on connecting a Mitsubishi Electric PLC or GOT to a personal computer via an RS-232/
USB interface (FA-D-0298)
When the USB cable used is the GT09-C30USB-5P manufactured by Mitsubishi Electric, specific
measures are not required to connect the AC-powered personal computer to the module. However,
note that the signal ground (SG) is common for the module and its USB interface. Therefore, if an SG
potential difference occurs between the module and the connected devices, it causes failures of the
module and the connected devices.
[Disposal Precautions]
CAUTION
● When disposing of this product, treat it as industrial waste.
● When disposing of batteries, separate them from other wastes according to the local regulations. For
details on battery regulations in EU member states, refer to the MELSEC iQ-R Module Configuration
Manual.
[Transportation Precautions]
CAUTION
● When transporting lithium batteries, follow the transportation regulations. For details on the regulated
models, refer to the MELSEC iQ-R Module Configuration Manual.
● The halogens (such as fluorine, chlorine, bromine, and iodine), which are contained in a fumigant
used for disinfection and pest control of wood packaging materials, may cause failure of the product.
Prevent the entry of fumigant residues into the product or consider other methods (such as heat
treatment) instead of fumigation. The disinfection and pest control measures must be applied to
unprocessed raw wood.
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