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ABB YPK117A Digital I/O Terminal Unit 

As essential supporting wiring spare for obsolete ABB Advant Master DCS systems, YPK117A solves common on-site digital control malfunctions: intermittent loss of breaker/valve feedback digital signals, partial channel open-circuit signal loss caused by terminal burnout, frequent digital signal bouncing due to failed surge protection circuit, upper DI/DO mainboard breakdown induced by field wiring short-circuit. Its mechanical dimension, pin definition and terminal wiring layout are 100% consistent with OEM original specifications, supporting one-to-one plug-and-play swap without modifying DCS control interlock logic or re-routing field digital equipment cables, greatly shorten unplanned production downtime during urgent equipment breakdown maintenance.

• Thermal Power Plants: Boiler auxiliary valve feedback, blower breaker auxiliary contact digital signal wiring spare

• Pulp & Paper Mills: Paper machine safety door switch, dryer steam valve interlock DI/DO terminal maintenance spare

• Petrochemical Refineries: Reactor emergency isolation valve, local safety limit switch digital wiring spare parts

• Cement Factories: Raw material conveyor baffle valve, kiln exhaust fan auxiliary interlock signal inventory

• Water Treatment Plants: Chemical dosing pump running feedback, liquid level switch digital signal terminal replacement

• Exclusive Dedicated Matching for Advant Master DCS: Special digital I/O terminal base designed for old-generation Advant rack architecture, incompatible with S800/S400 I/O terminal units, zero compatibility risk after replacement

• Multi-layer All-round Channel Protection Design: Greatly reduce damage risk of high-value DI/DO mainboards caused by field wiring faults, lower long-term factory maintenance cost

• Compact Rack Plug-in Miniature Structure: Small footprint saves cabinet internal installation space, perfect for old control cabinet renovation and expansion projects

• No Full Rewiring Quick On-site Maintenance: Direct card swap without removing field digital equipment cables, minimize equipment shutdown duration and production loss

• Dual New & Refurbished Inventory Stock: Separated stock for bulk project tender procurement and sudden on-site emergency breakdown rush air delivery

• Strict Pre-shipment Quality Control: Every finished unit passes full-channel digital signal stability test and high-voltage insulation withstand verification before outgoing shipment

Do you provide global shipping services?

Yes. We have local distribution centers on all continents, which can quickly transport parts to any corner of the world.

2. What payment methods and currencies do you accept?

To make your purchasing process as simple as possible, we offer multiple payment methods including bank transfer, check, and PayPal. Meanwhile, we also accept most mainstream credit and debit cards, such as Visa, Mastercard, and American Express. We can accept payments in most major currencies worldwide, but we recommend using US dollars (USD), British pounds (GBP), or euros (EUR) as a priority. Payments in other currencies may incur additional fees. All transactions are securely processed by HSBC Bank and HSBC Merchant Services.

How many parts do you currently have in stock?

We have a vast inventory of thousands of new, refurbished, and outdated automation components, including products from well-known manufacturers such as ABB and Schneider. If you cannot find the required parts, please do not worry. We work closely with a global network of professional suppliers to provide you with tailored quotes even if the part is not listed on our website.

Who can I contact if I encounter any problems?

Our experienced customer service team will handle any issues after you place your order.