Process Loop Control Solution — YOKOGAWA YS170-012 | YS170 Series
Where This Product Is Used
The YOKOGAWA YS170-012 is a single-loop programmable controller engineered for demanding process industries where precise, reliable PID control is non-negotiable. Typical deployment environments include:
- Oil & Gas Refineries — Flow, pressure, and temperature loop control on distillation columns and heat exchangers
- Chemical & Petrochemical Plants — Reactor temperature regulation, pH control, and batch sequencing
- Power Generation Facilities — Boiler drum level control, feedwater flow regulation, and turbine bypass management
- Pulp & Paper Mills — Stock consistency control, steam pressure loops, and dryer section temperature management
- Water & Wastewater Treatment — Dosing pump control, dissolved oxygen regulation, and filter backwash sequencing
- Food & Beverage Processing — Pasteurization temperature control, CIP cycle management, and filling line pressure regulation
- Pharmaceutical Manufacturing — Cleanroom HVAC control, autoclave pressure/temperature loops, and bioreactor parameter management
Technical Specifications
| Manufacturer | YOKOGAWA Electric Corporation |
| Model Number | YS170-012 |
| Series | YS170 Programmable Controller Series |
| Controller Type | Single-loop PID Programmable Controller |
| Control Algorithm | PID, PI-D, I-PD, 2-DOF PID |
| Analog Input | Universal input (thermocouple, RTD, DC voltage, DC current) |
| Analog Output | 4–20 mA DC (isolated) |
| Display | Digital LED display with engineering unit indication |
| Mounting Style | Panel mount / DIN rail compatible |
| Power Supply | 100–240 V AC, 50/60 Hz |
| Operating Temperature | 0°C to 50°C (32°F to 122°F) |
| Storage Temperature | -20°C to 60°C |
| Humidity | 20% to 90% RH (non-condensing) |
| Weight | Approx. 1,100 g |
| Communication | RS-485 (MODBUS RTU optional) |
| Protection Class | IP54 (front panel) |
Why Engineers Specify This Model
- Proven YOKOGAWA Reliability — The YS170 series has accumulated decades of field deployment across global process industries, with MTBF figures that satisfy the most stringent plant reliability requirements.
- 2-Degree-of-Freedom PID — Independent tuning of setpoint response and disturbance rejection allows engineers to optimize both startup performance and steady-state stability without compromise.
- Universal Analog Input — Accepts thermocouple (K, J, T, E, R, S, B, N), RTD (Pt100), and DC signal inputs without additional signal conditioners, reducing panel wiring complexity.
- Bumpless Auto/Manual Transfer — Smooth mode switching eliminates process upsets during operator intervention, critical for continuous process applications.
- Compact Panel Footprint — 96 × 96 mm front panel fits standard DIN cutouts, enabling high-density control panel design.
- Integrated Alarm Functions — Up to 4 configurable process alarms with independent setpoints reduce the need for external alarm modules.
- MODBUS RTU Compatibility — Enables seamless integration with SCADA systems, DCS supervisory layers, and HMI platforms without protocol converters.
Complete System Bill of Materials
For a complete single-loop control station based on the YS170-012, engineers typically specify the following complementary components:
- YOKOGAWA YS170-012 — Primary loop controller (this unit)
- YOKOGAWA YS170-E10 — Expansion I/O module (additional analog outputs)
- YOKOGAWA YS170-E20 — Communication expansion module (RS-485/MODBUS)
- 24 VDC DIN rail power supply (e.g., Phoenix Contact QUINT series)
- Shielded twisted-pair cable (Belden 9841 or equivalent) for analog signal wiring
- Terminal block assemblies (Phoenix Contact or Weidmüller) for field wiring termination
- Panel-mount surge protection devices for analog I/O lines in outdoor or hazardous area installations
- YOKOGAWA FieldMate or YS170 configuration software for parameter setup and loop tuning
Compliance & Industry Standards
- CE Marking — Compliant with EU Low Voltage Directive and EMC Directive
- UL/cUL Listed — Recognized for use in North American industrial installations
- RoHS Compliant — Meets EU Restriction of Hazardous Substances requirements
- IEC 61010-1 — Safety requirements for electrical equipment for measurement, control, and laboratory use
- IEC 61000-4 Series — EMC immunity standards for industrial environments
- NAMUR NE 43 — Standardized signal levels for failure information from field devices
Quality Assurance & Sourcing
Konmask.com sources YOKOGAWA YS170-012 units through established industrial automation distribution channels. Each unit offered is:
- Inspected for physical integrity, label authenticity, and firmware version consistency prior to listing
- Stored in ESD-safe, climate-controlled warehouse conditions to preserve electronic component integrity
- Shipped with original manufacturer documentation where available, including calibration records and factory test reports
- Traceable to documented supply chain records — we do not source from grey-market or unverified secondary channels
- Backed by Konmask’s pre-shipment functional verification process for refurbished or surplus units
For new-in-box units, original YOKOGAWA factory seals and warranty documentation are preserved intact.
How to Source This Part
Standard Lead Time: In-stock units ship within 1–3 business days (China domestic). International orders ship via DHL Express or FedEx International Priority.
To place an order:
- Add to cart and complete checkout — we accept T/T bank transfer, PayPal, and major credit cards
- For bulk orders (5+ units), contact us directly for volume pricing and consolidated shipping arrangements
- OEM and system integrator accounts are eligible for net-30 payment terms upon credit approval
- Export documentation (commercial invoice, packing list, certificate of origin) provided for all international shipments
Need a formal quotation for procurement? Email support@konmask.com with your required quantity, delivery address, and any project-specific requirements.
Application-Specific FAQ
Q: Can the YS170-012 replace a legacy YOKOGAWA YS80 or YS100 series controller?
A: In most cases, yes. The YS170 series was designed as a functional successor to earlier YS-series single-loop controllers. Terminal assignments and signal ranges are largely compatible, though panel cutout dimensions should be verified before direct replacement.
Q: Does the YS170-012 support cascade control configurations?
A: The YS170-012 supports cascade control when paired with a secondary YS170 unit or compatible master controller via the RS-485 communication link. Standalone cascade is not supported in a single unit.
Q: What software is required for configuration and loop tuning?
A: YOKOGAWA FieldMate Versatile Device Management Wizard or the dedicated YS170 parameter setting tool (PC-based, RS-232/RS-485 connection) is used for full parameter access. Basic setpoint and PID parameter adjustments can be made via the front panel keypad.
Q: Is this unit suitable for SIL-rated safety loops?
A: The standard YS170-012 is not SIL-certified. For safety instrumented system (SIS) applications requiring SIL 1 or SIL 2 compliance, YOKOGAWA’s ProSafe-RS or dedicated safety controllers should be specified.
Q: Can I get a calibration certificate with my order?
A: Factory calibration certificates are available for new-in-box units. For surplus or refurbished units, third-party calibration services can be arranged — contact us prior to ordering to confirm availability.
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