EVOC M50 Series, Manual, Page: 148 / 250

PC Connection
· 18 · M50 SERIES
4. PC Connection
4.1 Things to Know before Connection
Warning
The connected or built-in peripherals with opposite polarities are not allowed.
Warning
The device only operates when connecting 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.
4.2 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 equipotential bonding terminal
①
on the device 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 2.5mm
2
. The
maximum ground resistance should
be no more than 0.1 Ω .