Omron Sysmac NX Series User Manual page 24

Precautions for Safe Use
e) Attaching or removing terminal blocks or connectors
Units that supply power continue to supply power to the Units for up to several seconds after the
power supply is turned OFF. The PWR indicator remains lit as long as power is supplied. Confirm
that the PWR indicator is not lit before you perform any of the above.
Operation
• Confirm that the controlled system will not be adversely affected before you perform any of the fol-
lowing operations.
a) Changing the operating mode of the CPU Unit or Industrial PC (including changing the setting of
the Operating Mode at Startup)
b) Changing the user program or settings
c) Changing set values or present values
d) Forced refreshing
• Always sufficiently check the safety at the connected devices before you change the settings of a
slave or Unit.
General Communications
• Do not exceed the ranges that are given in the specifications for the communications distance and
number of connected Units.
• Refer to the user's manual for the Communications Coupler Unit for precautions for the safe use of
communications with the connected Communications Coupler Unit.
Unit Replacement
• When you replace a Unit, start operation only after you transfer the settings and variables that are
required for operation to the new Unit.
Disposal
• Dispose of the product according to local ordinances as they apply.
Using the High-speed Analog Input Unit
• The High-speed Analog Input Units can be used only in the upright orientation. Otherwise, Unit fail-
ure or malfunction may occur.
• Do not connect the High-speed Analog Input Units next to a Relay Output Unit. Otherwise, Unit mal-
function may occur.
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NX-series Analog I/O Units User's Manual for High-speed Analog Input Units (W592)