Chapter 2 WiringDD Series

Chapter 2 Wiring

After removing the front cover, examine if the power and control terminals are clearly noted. Please read following precautions before wiring.

;Make sure that power is only applied to the R/L1, S/L2, T/L3 terminals. Failure to comply may result in damage to the equipments. The voltage and current should lie within the range as indicated on the nameplate (Chapter 1-1).

;All the units must be grounded directly to a common ground terminal to prevent lightning strike or electric shock.

;Please make sure to fasten the screw of the main circuit terminals to prevent sparks which is made by the loose screws due to vibration

DANGER

;It is crucial to turn off the AC motor drive power before any wiring installation is made. A charge may still remain in the DC bus capacitors with hazardous voltages even if the power has been turned off therefore it is suggested for users to measure the remaining voltage before wiring. For your personnel safety, please do not perform any wiring before the voltage drops to a safe level < 25 Vdc. Wiring installation with remaining voltage condition may cause sparks and short circuit.

;Only qualified personnel familiar with AC motor drives is allowed to perform installation, wiring and commissioning. Make sure the power is turned off before wiring to prevent electric shock.

;When wiring, please choose the wires with specification that complies with local regulation for your personnel safety.

;Check following items after finishing the wiring:

1.Are all connections correct?

2.No loose wires?

3.No short-circuits between terminals or to ground?

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3Com VFD-D D manual Wiring
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VFD-D D specifications

The 3Com VFD-D D is an advanced networking solution designed to meet the demands of modern communication and connectivity. As part of 3Com's extensive portfolio of networking products, this device stands out due to its robust features, innovative technologies, and characteristics that cater to various enterprise environments.

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Overall, the 3Com VFD-D D combines speed, security, and scalability in a single device, making it a powerful addition to any enterprise network. Its advanced features and technologies are tailored to support the dynamic needs of modern businesses, ensuring reliable performance and robust connectivity in an increasingly interconnected world.
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