Description

Yokogawa YS1700 Programmable Controller

Technical Specifications

• Product Model: YS1700
• Brand: Yokogawa
• Warranty: One Year
• Input Voltage: 100‑240 VAC, 50/60 Hz
• Operating Temperature: 0 °C ~ +50 °C
• Storage Temperature: ‑20 °C ~ +70 °C
• Response Time: Control cycle 100 ms
• Protection Class: IP20 front‑panel IP54
• Accuracy Class: ±0.1 % FS analog processing grade
• Output Frequency: Not applicable
• Rated Current: Max 0.35 A @240 VAC
• I/O Configuration: Mixed analog / discrete I/O, PID loop control, math logic function blocks
• Communication: RS‑485, Modbus RTU
• Display: Local LCD operator display, key‑pad operation
• System Compatibility: Stand‑alone loop controller, retrofitting for legacy process plants
• Diagnostics: Self‑diagnosis, loop alarm, process deviation alarm
• Humidity: 10‑90 % RH, non‑condensing
• Weight: 1.2 kg
• Dimensions: 96 × 96 mm DIN panel‑mount
• 

Product Overview

YS1700 is Yokogawa stand‑alone programmable loop controller, supporting multi‑loop PID regulation, mathematical computation, sequence logic and alarm management. It executes closed‑loop control without DCS host system, widely used for independent furnace, heating, pressure and flow control in chemical, oil‑gas and energy plants. Local HMI enables on‑site parameter modification, trend viewing and alarm checking. Modbus RTU interface supports data upload to supervisory host. End‑of‑life spare unit available as refurbished and surplus tested hardware for legacy panel upgrade and replacement projects.

Application Notes

‑ Mount on standard 96×96 mm instrument panel. ‑ Separate instrument wiring from high‑power noise‑generating cables. ‑ Configure PID parameters according to actual process characteristics. ‑ Typical deployment: process‑plant stand‑alone controller spare‑part stocking.