Device Connection
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ERC-1005
3. Device Connection
3.1 Notices before Connection
Warning
Peripherals with reverse polarity must not be connected or built-in.
Warning
The device only operates when connected with grounded power. No operation is
allowed when the device power is ungrounded or only impedance is grounded.
Warning
Rated voltage of the device in use shall be in accord with power feature of the
product.
Note:
Only the peripheral devices approved for industrial application can be used. When
operating the PC, hot swappable IO modules (USB) can be used. The IO devices
without hot swap function can only be connected when the PC is powered off.
3.2 Product Grounding
Low impedance ground connection is more helpful to release the interference
produced by the external cables, the signal cables or the cables connecting the IO
module to the grounding system.
Ground Terminals
The grounding terminal
①
on the
device (large surface or large
area contact) shall be connected
with the cabinet installed with
the PC or the central grounding
busbar on the device. The
minimum cross section area of
the cable shall be no less than
5mm
2
.
