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Tricon
24 VAC/VDC Digital Input Module
Thirty-two discrete field inputs.
TMR acquisition with stuck-on fault testing.
FIELD CONTACT / TMR INPUT / LOGIC STATE
32
24 VAC/VDC
20–42.5 VAC/VDC
External field termination. Point-level status and module diagnostics.
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+86 18020776782| Parameter | Specification |
|---|---|
| Input points | 32 |
| Nominal field voltage | 24 VAC/VDC |
| Input voltage range | 20–42.5 VAC/VDC |
| AC input frequency | 47–63 Hz |
| Commoning groups | 4 groups of 8 |
| Turn-on current | 6–9 mA |
| Typical hysteresis | 4 VAC/VDC |
| Off-to-on delay | <8 ms |
| On-to-off delay | <15 ms |
| Point isolation | 1500 VDC |
| Input impedance | >1.25 kΩ |
| Field power per energized point | 0.5 W nominal; 1.5 W at maximum field voltage |
| Architecture | TMR with self-test |
| Input indicators | 1 per point |
| Module indicators | PASS, FAULT, ACTIVE |
| Stuck-on fault test | Included |
| Termination | External termination panel |
| Hot-spare support | Available |
Field power consumption is stated per energized point. The input groups are commoned, so the module must not be wired as thirty-two independently isolated field supplies.
TRICON
Thirty-two discrete field inputs.
Triconex 3503E is a TMR digital input module for nominal 24 VAC or VDC field circuits. It provides thirty-two inputs commoned in groups of eight and accepts a 20–42.5 VAC/VDC input range. Internal self-testing checks for input circuits that remain incorrectly on. During this test, the module holds the last input reading for the application. External termination panels connect field wiring to the module. The combination of point indication and module diagnostics supports maintenance of discrete process-input circuits.
01 / Read discrete field states
The input circuitry converts compatible AC or DC field signals into discrete states for the Tricon control program.
02 / Check for stuck-on faults
Self-testing exercises the input circuitry to detect a persistent on-state fault while retaining the last reading during the test.
03 / Identify input and module condition
Individual point indicators show field status while the module indicators distinguish active operation from a diagnosed fault.
Four commoned input groups
Field inputs are commoned in groups of eight. Plan the common conductors and field supplies around this grouping.
Isolation must be considered together with the commoned input arrangement and the selected external termination panel.
AC or DC discrete circuits
The module accepts either DC signals or AC signals within its rated frequency and voltage limits.
Replacement in a TMR installation
Check the installed termination panel, field voltage and input-group wiring before exchanging the module.
Company was founded in Xiamen, Fujian, China, in 2005 with a team of only four people. At that time, we mainly served selected European and North American markets, supplying commonly requested industrial automation products from Siemens, Allen-Bradley and Bently Nevada. Although the business was still developing and we completed relatively few orders, this period helped us build essential product knowledge and international trade experience.
By 2017, our team had grown to approximately 30 people, and we had established a warehouse for in-stock automation components. Our business expanded across Europe, North America and Southeast Asia, while our product range grew from popular models to scarce and discontinued industrial automation parts. As our product knowledge and service experience increased, we completed nearly 20 orders per month on average.
Today, Company serves customers worldwide with a professional team of approximately 60 people. Our warehouse holds a broad selection of industrial automation components, including popular products, hard-to-find parts and discontinued models. We now complete more than 30 orders per month, with an average monthly transaction value of approximately USD 3 million. We have established long-term partnerships with nearly 30 customers from different countries and welcomed almost 40 international customers to visit our company.
Since our company was founded, we have served every customer with sincerity and professionalism. Our prices may not always be the lowest, but we earn long-term trust through quality products, dependable after-sales support, honest condition reporting, timely communication and responsible delivery. Our goal is to build lasting partnerships rather than pursue one-off transactions.
Support across the equipment lifecycle.
Most products are covered by a warranty of up to 12 months, subject to the applicable terms and conditions. If any product-related issue occurs during the warranty period, our team will assist you and provide an appropriate solution.
Relevant datasheets and technical literature can be provided with the goods, offering useful information for product identification, installation, operation, and maintenance.
We understand the importance of minimizing equipment downtime. Our team responds promptly to inquiries and provides professional assistance with product information, quotations, order status, shipping, and after-sales questions.
We serve customers worldwide and provide reliable assistance from inquiry to delivery and after-sales service, ensuring clear and timely communication throughout the process.
We continue to source discontinued, obsolete, and hard-to-find automation parts from various brands, helping customers maintain existing equipment and reduce downtime caused by spare parts shortages.
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