ABB UNS0862A-P HIEE405179R0001
| Brand | ABB |
| Module Number | UNS0862A-P |
| Order Number | HIEE405179R0001 |
| Unit price | $1999 |
| Country Of Origin | Switzerland and Sweden |
| Weight | 0.55KG |
| Certificate |
C/O from the Chamber of Commerce C/Q from the Manufacturer |
| Warranty | 12 Months |
| Inventory Qty | 7 |
ABB UNS0862A-P is UNITROL control board for excitation system.
UNS0862A-P: As visible in the accompanying image, the board features three gray square modules; these are onboard isolated pulse transformers designed to provide electrical isolation between high-voltage power signals and low-voltage control signals, thereby ensuring immunity to electromagnetic interference.
The board is equipped with an 8-position terminal block, serving as the interface for the input of external signals or the output of data.
Additionally, a dedicated ribbon cable header is present, primarily facilitating communication and interfacing with the main control board.
Constructed as an industrial-grade PCB, the board is engineered to withstand the demanding conditions typical of power plant environments—specifically, high temperatures, airborne dust, and intense electromagnetic fields.
Account Number 88800006406771
Account name Vogi International Trading Co., Limited
(* If the account name exceeds the available space, please continue in the address field.)
SWITF/BIC Code WIHBHKHHXXX
Bank name OCBC Hong Kong Branch
Bank address 161 Queen's Road Central, Central, Hong Kong
Country/Region Hong Kong (China)
Account type Business Account
Bank code 035
Payment method For the payment of goods, please make a FPS/CHATS/SWIFT Payment
Notes Please include the following memo/message to receiver when making a payment: [Buyer Name] [Invoice/Contract Number] [Product]
Fault Symptoms: No module output; abnormal excitation voltage.
Possible Causes: Damaged pulse transformer; loose or oxidized wiring terminals; poor contact in the ribbon cable; aging internal capacitors or resistors.
Engineer's Troubleshooting Steps:
- After powering off the device, inspect the 8-pin terminal block; tighten the wiring connections and clean off any oxidation on the terminals.
- Disconnect and reconnect the dedicated ribbon cable; clean the "gold finger" contacts and ensure the cable is firmly seated.
- Use a multimeter to check the continuity of the windings in the three isolation transformers; if a winding is open-circuited, the transformer is damaged and must be replaced immediately.
- Inspect the electronic components on the circuit board for signs of bulging or scorching to identify any damaged components.
This represents a relatively simple fault that can often be resolved simply by replacing the unit. Should you encounter more complex technical issues, please consult with a qualified professional.
