UNS2880b-P,V2 3BHE014967R0002 pcba

Provided by Shanxi Runsheng Import and Export Co., Ltd

① Brand: ABB

② Model: UNS2880b-P, V2 3BHE014967R0002

③ Product category: module

④ Payment method: telegraphic transfer, USD, Western Union remittance

⑤ Freight: The freight in different regions shall be subject to the local freight forwarder

⑥ Does it include tariffs? It does not include any taxes.

⑦ Packaging: use the Seller’s safe packaging.

● Safety grounding or power grounding

Connect the grounding terminal of the power line and the cabinet to the ground for safe grounding. In case of power leakage or cabinet electrification, it can be led into the ground from the safe grounding without causing harm to people.

● System grounding

The PLC controller is grounded at the same potential with the controlled equipment, which is called system grounding. The grounding resistance value shall not be greater than 4 Ω. Generally, it is necessary to connect the PLC equipment system ground and the negative terminal of the switch power supply in the control cabinet together as the control system ground.

● Signal and shield grounding

It is generally required that the signal line must have a unique reference ground, and the shielded cable should also be grounded locally or in the control room to prevent the formation of a “ground loop” in case of possible conductive interference. When the signal source is grounded, the shielding layer should be grounded at the signal side; When not grounded, it should be grounded at the PLC side; When there is a joint in the middle of the signal line, the shielding layer shall be firmly connected and insulated, and multi-point grounding must be avoided; When the shielded twisted pair of signals from multiple measuring points is connected with the multi-core twisted pair total shielded cable, the shielding layers shall be connected with each other and insulated, and the appropriate single-point contact at the grounding point shall be selected.