Mitsubishi Electric LCPU-U-HW Safety Manuallines page 8

[Installation Precautions]
● Use the programmable controller in an environment that meets the general
specifications described in this manual. Failure to do so may result in electric
shock, fire, malfunction, or damage to or deterioration of the product.
● To interconnect modules, engage the respective connectors and securely lock
the module joint levers until they click. Incorrect interconnection may cause
malfunction, failure, or drop of the module.
● Do not directly touch any conductive part of the module. Doing so can cause
malfunction or failure of the module.
● Securely connect an extension cable to the connectors of a branch module
and an extension module. After connection, check that the cable is inserted
completely. Poor contact may cause malfunction.
● Securely install the SD memory card pushing the card into the SD memory
card installation slot. After installation, check that the SD memory card is
installed completely. Poor contact may cause malfunction.
● Keep in mind that there is a possibility that the unit is high temperature, during
turning on electricity and immediately after power supply interception.
● Do not directly touch any conductive part and electronic components of the
module and the SD memory card. Doing so can cause malfunction and failure
of the module and the SD memory card.
[Wiring Precautions]
● Shut off the external power supply for the system in all phases before wiring.
Failure to do so may result in electric shock or cause the module to fail or
malfunction.
● After installation and wiring, attach the included terminal cover to the product
before turning it on for operation. Failure to do so may result in electric shock.
Precautions for using flexible high-speed I/O control
modules
● When connecting a differential output terminal to the differential receiver of a
drive unit, connect a high-speed output common terminal to the common
terminal of the differential receiver of the drive unit. Failure to do so may cause
the module to fail or malfunction because of the potential difference that
occurs between the high-speed output common terminal and the differential
receiver common terminal.
CAUTION
WARNING
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