Product Overview
The Yokogawa ARM55W is a high-density Relay Output Board designed for discrete contact outputs within the CENTUM VP control system. It provides 32 relay output channels, enabling reliable interfacing between low-power control logic and high-power field devices such as solenoid valves, motor starters, and auxiliary relays. With mechanical relay isolation, the ARM55W ensures safe and stable switching in demanding industrial environments. This unit is supplied as 100% brand new, original factory hardware to ensure maximum system reliability and uptime.
Part Number Breakdown
ARM55W – Base model for 32-channel relay contact output board
-0 – Standard functional specification
0 – Mechanical design for 19-inch rack mounting or cabinet integration
Technical Specifications
| Parameter | Specification |
|---|---|
| Number of Outputs | 32-point relay contacts |
| Contact Type | Form A (NO) or Form C (Changeover) (model dependent) |
| Field Connections | Dedicated cable interface to terminal blocks |
| Rated Load Voltage | 24 V DC / 110 V AC (verify per application) |
| Mounting Type | 19-inch rack mountable |
| Insulation Resistance | ≥ 10 MΩ at 500 V DC |
| Condition | 100% Brand New Original |
Engineering Advantages
High-Power Switching Capability
Mechanical relay outputs support higher current loads compared to transistor-based modules, allowing direct control of field devices without additional interposing relays.
Superior Electrical Isolation
Relay contacts provide true galvanic isolation with a physical air gap, protecting control electronics from voltage spikes and electrical transients.
Redundant Configuration Support
Designed to accept dual-redundant I/O cable inputs, ensuring continuous output control even if one communication path fails.
Streamlined Maintenance
The rack-mountable design allows easy access for inspection, wiring checks, and replacement, reducing maintenance time and improving service efficiency.
FAQs
Does the ARM55W support both AC and DC loads?
Yes, it supports both AC and DC loads within specified limits. Always confirm current ratings for your specific voltage to avoid contact wear or damage.
What is the difference between ARM55W and ARM55D?
The ARM55W typically differs in cable interface design and contact configuration, often integrating with dedicated terminal boards via pre-assembled cables.
Can I replace an ARM55W module while the system is live?
While CENTUM VP supports hot-swapping of I/O modules, removing the ARM55W board will interrupt all 32 outputs. Replacement is recommended during planned shutdowns.
How do I troubleshoot a single failed channel?
Perform a continuity test across the output terminals while issuing an ON command. This verifies whether the relay is mechanically operating as expected.
| Quick Quotes | Receive price & availability FAST from our dedicated customer service team. |
|---|---|
| Delivery | Expedited, Freight, And International Shipping Available. |
| Condition | 100% New with Original Package |
| Payment | We accept American Express, Discover, MasterCard, PayPal, and Visa. Our site is secured by RapidSSL. |
| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
| Q: Is Our Pricing Competitive? |
| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
| Q: What Is the Warranty Period? |
| A: All our new and original products come with a standard one-year warranty. |
| Q: What Payment Methods Do We Accept? |
| A: We require 100% T/T (Telegraphic Transfer) payment before shipping. For items with a lead time, a 30% deposit is needed upfront, and the remaining 70% is due before shipping. If you have a representative in China, you can arrange an RMB transfer through them. |
| Q: What Shipping Methods Do We Use? |
| A: We primarily use FedEx, DHL, UPS, and BRE for shipping. If you have an account with any of these carriers, you can handle shipping directly. We also offer free shipping to China-based freight forwarders. |
| Q: What Is Our Delivery Time? |
| A: Delivery usually takes 1-3 days after receiving the initial payment. For items with a lead time, shipping will occur according to the specified schedule. |
| Q: How Do We Package the Goods? |
| A: We ensure safe packaging with multiple layers of protection. Products are first placed in their original boxes and sealed with labels. A layer of bubble wrap is then added for collision protection during transit. Finally, the items are packed securely in durable boxes. |
| Q: How Can Customers Contact Us and Request a Quote? |
| A: You can reach out to us via email, WhatsApp, WeChat, Skype, or your preferred communication platform. Contact us with your needs, and we'll provide a prompt, customized quote. |
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