Yokogawa YFGW610 - Manual (Page 32)

B4-6
IM 01W02D02-01EN
B4.3 Grounding
Secure grounding is required to ensure stable YFGW610 operations. YFGW610 has two ground
terminals: the frame ground (FG) terminal secured by the M4 screw at the side of the power con-
nector, and the ground terminal at the power supply spring terminal.
Connect the ground leads from the frame ground (FG) terminal to the ground. Connect the cable
shield or others to the power supply spring terminal.The internal wiring of YFGW610 housing is
connected as shown in the following fi gure.
FB0404
YFGW610 Housing
-
+
NC
Power supply
connector
Ground
terminal
Figure B4-4 Internal connection of the ground terminal
To ensure stable grounding, use the insulation bushings or others and functionally insulate the
entire board or DIN rails with the device from the metal surface of external cabinet, rack and oth-
ers. Then, connect the leads from TFGW610 to the ground. Directly connect the leads from the
FG terminal screw to the Class D grounding with the 100 ohms or less grounding resistance. Do
not share the ground leads with other devices.