Description
1. At-A-Glance Executive Brief
- Model: YS1700-120/A06/A31
- Brand: Yokogawa
- Part Type: Single-Loop Programmable Controller
- Lifecycle Status: Current Production / Active Series
- System Compatibility: Yokogawa YS1000 Series Control Environments
- Core Protocol: Modbus / Ethernet / RS-485 communication options
2. Technical Introduction
Process control loops require dependable standalone management when distributed control networks undergo maintenance or local loop redundancy is mandatory. The Yokogawa YS1700-120/A06/A31 functions as an advanced single-loop programmable controller, executing complex regulatory and math control algorithms directly on the plant floor. It offers high-visibility color TFT display graphics and robust operator faceplate interactions, securing stable process regulation without relying on upper-level supervisory computers.
- Best Suited For: Critical single-loop standalone process control
- Best Suited For: Legacy YS100 control room panel retrofits
- Best Suited For: High-visibility local operator control stations
3. Core Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Yokogawa |
| Series | YS1000 / YS1700 |
| Part Number | YS1700-120/A06/A31 |
| Product Type | Single-Loop Programmable Controller |
| Power Supply | 100 to 240 VAC / 110 to 130 VDC |
| Display Type | TFT Color Liquid Crystal Display |
| Control Output | Analog and digital relay control outputs |
| Communication | Ethernet (Modbus/TCP) and RS-485 (Modbus RTU) |
| Operating Temperature | 0∘C to +50∘C |
| Weight | 1.2 kg |
4. Field Engineer’s Tech Notes
- Power Supply Voltage Selection: Verify that the incoming power source matches the controller’s terminal rating before applying line power. Applying 240 VAC to a unit configured for low-voltage power options will permanently damage internal power regulation circuits.
- Backup Memory and Battery State: The YS1700 utilizes internal non-volatile memory and backup storage for configuration retention. During routine panel checks, confirm that parameter settings and custom control program blocks are properly saved to prevent data loss after power cycling.
5. Adaptive QA & Testing Protocol
Every inventory unit undergoes bench testing to validate hardware reliability prior to dispatch. For the YS1700-120 controller, our technicians execute signal simulation tests across analog inputs and outputs, verifying loop control accuracy and 4–20 mA scaling precision. The color TFT display, front-panel tactile pushbuttons, communication ports (Ethernet and RS-485), and internal relay switching actions are thoroughly checked under simulated operating conditions. Complete test reports and pre-shipment functional verification videos are available upon request.
6. Buyer’s FAQ
- What is the standard warranty coverage for this controller? All units—whether New Surplus (NSFP) or factory fresh—carry a comprehensive 12-month operational warranty from the date of purchase.
- How fast can this unit be dispatched for urgent plant cutovers? In-stock items ship the same business day if ordered before our daily carrier cutoff, with expedited global air delivery options available.
- Are the option codes (/A06/A31) compatible with standard panel cutouts? Yes, the YS1700 maintains standard Yokogawa YS-series panel dimensions for direct drop-in replacement, though the specific suffix options govern power supply types, terminal configurations, and communication features. Verify your exact loop requirements prior to ordering.
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