Mitsubishi Electric 800 Series Instruction Manual page 3

When using a bus connection, expansion cables should be securely connected to the connectors
of the base unit and the bus connection module. After connecting the connectors, check to make
sure they are securely tightened and not loose. Defective contact could cause malfunctioning and
input errors.
The communications cable should be connected securely to the connector on the communica-
tions unit. Defective contact could cause malfunctioning and input errors.
Make sure the memory cassette is installed securely in its connector. After connecting the conmec-
tor, check to make sure it is securely tightened and not loose. Defective contact could ciiwse
malfunctioning.
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DANGER
[Precautions Regarding Wiring]
Before beginning any installation or wiring work, make sure all phases of the power supply I-rave
been obstructed from the outside. Failing to completely shut out the power supply phases could
cause electrical shock and/or damage to the product.
[Precautions Regarding Wiring]
' T he LG terminals of power supply module should always be grounded using the Class 3 grcwnd
designed especially for the GOT, or a higher class of ground. Failing to ground these terminals
sufficiently could cause electrical shock andlor malfunctioning.
Before wiring the power supply module, check the rated voltage and terminal layout of the wiring,
and make sure wiring is done correctly. Connecting a power supply that differs from the riated
voltage, or wiring it incorrectly, could cause fire and/or breakdowns.
Tighten terminal screws of power supply module to the rated toque.
Failing to tighten terminal screws adequately could cause short-circuits, fire, and/or malfunction-
ing.
Be careful never to let foreign matter such as filings or wiring scraps get inside the GOT. These can
cause fire, breakdowns, and malfunctioning.
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DANGER
[Precautions Regarding Startup and Maintenance]
Never touch terminals of power supply module while conductivity is being supplied. 'This could
cause electrical shock and/or malfunctioning.
When cleaning the power supply module and tightening the screws, make sure the power supply
has been turned off. Cleaning the power supply module or tightening screws while conductivity is
being supplied could cause electrical shock.