Yokogawa YFGW610 User Manual download pdf (Page 32)

<B4. Power, ground, and signal cable connection>

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  gure.

FB0404

YFGW610 Housing

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.

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Yokogawa YFGW610 User Manual Page 32