Omron V430-F-series User Manual page 380

• Ground the shield cable of the power supply to –(0V).
Ground any of one part of the shield cable, chassis, or RJ-45 connector of Ethernet
cable to earth with D class grounding. Use a Class 2 power supply for the DC source.
POWER
SUPPLY
+
-
Note: In the case of this connection, must not ground the +(24V) of the power supply. If
connected, the device will break down due to a short circuit.
Ground Loops
Ground loops (signal degradation due to different ground potentials in communicating
devices) can be eliminated or minimized by ensuring that both the host, imager, and their
power supplies are connected to a common earth ground.
Note: If a malfunction occurred to your reader by noise, mount a noise filter (RSAL2001W
manufactured by TDK-Lambda Corp.) close to the reader's power-supply terminals and
ground the chassis of the filter.
Auto Focus Multi Code Reader V430-series User's Manual (Z392)
+ -
ISOLATION
SHIELD
NON-
ISOLATION
V430-F
ISOLATION
Chassis
MACHINE
Ethernet Device
RJ45 connector
SHIELD Ethernet
SHIELD
RS232/422/485
SHIELD
SHIELD
SHIELD I/O
SHIELD
Appendices
RS232/422/485
Device
A-9