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YOKOGAWA YS1700-121/A06

Product Introduction:
The YS1700-121/A06 is a single-loop programmable controller from Yokogawa’s YS1700 series. It features a universal input that accepts thermocouple, RTD, voltage, current, and frequency signals. The /A06 suffix denotes a specific faceplate configuration and output type. The YS1700 is designed for compact 1/4 DIN panel mounting and provides PID control with advanced algorithms.

Detailed content

Technical Specifications:

  • Controller Type: Single-loop PID controller
  • Input TypeUniversal (TC Type J, K, T, E, B, R, S, L, N, W / RTD Pt100, JPt100, Cu50 / DC Voltage 0–5V, 1–5V, 0–10V / DC Current 4–20mA, 0–20mA / Frequency 0–1kHz)
  • Control OutputRelay output (2 SPDT relays) + 4–20mA DC output (optional)
  • Alarm Output2 alarm outputs (HIGH, LOW, DEVIATION, BAND)
  • Display: 5-digit, 7-segment red LED (main value) + 4-digit green LED (setpoint)
  • Control ModesPID, ON/OFF, 2-Position, Heating/Cooling PID
  • Scan Rate250 ms (0.25 second)
  • Power Supply100–240 VAC, 50/60 Hz / 24 VDC (dual supply capable)
  • Power Consumption: Maximum 5 VA
  • Operating Temperature: -10 to +55 °C (14 to 131 °F)
  • Protection RatingFront panel IP66 / NEMA4X
  • Dimensions48 mm (W) × 96 mm (H) × 106 mm (D) (1/4 DIN: 45 × 90 mm cutout)
  • WeightApproximately 0.35 kg

Functional Features:

  • Auto-tuning function (relay method + PID method) for rapid commissioning
  • Built-in 32 segment program pattern for ramp/soak control
  • SV ramp function (soft start/stop for setpoint changes)
  • Manual/Auto/Cascade control modes
  • Heating/Cooling control with differential gap
  • Remote setpoint input (analog or digital)
  • Communication: RS-485 (Modbus RTU) — optional module

Performance Parameters:

  • Control Accuracy (PID): ±0.2% of full scale (F.S.) or ±1 digit (whichever is greater)
  • Repeatability±0.1% of F.S.
  • Alarm Accuracy: ±0.5% of F.S.
  • Output Accuracy (4–20mA)±0.2% of span

Structural Features:

  • Housing: Flame-retardant polycarbonate front, ABS rear housing (UL94 V-0)
  • Terminal Block: Screw terminal, wire size 0.5–2.5 mm² (AWG 20–14)
  • Mounting: 1/4 DIN panel clip or DIN rail (35 mm)
  • Front Panel: Snap-on, gasket-sealed for IP66 protection

Applicable Industries:

  • HVAC — Temperature control in air handling units
  • Food Processing — Oven and fryer temperature control
  • Plastics & Rubber — Extruder and mold temperature control
  • Water Treatment — Tank level and temperature control
  • General Manufacturing — OEM machine integration

Installation Requirements:

  • Panel cutout: 45 mm (W) × 90 mm (H) for 1/4 DIN mounting
  • Use shielded cable for all input signals
  • Ground the shield at one end only (controller end recommended)
  • For TC inputs, use correct thermocouple extension wire type matching the TC type
  • For RTD inputs, use 3-wire configuration for best accuracy

Precautions:

  • Do not apply voltage exceeding 30 VDC or 250 VAC between terminals
  • Ensure input signal does not exceed rated input range (overrange will cause inaccurate reading)
  • Do not disassemble the front panel — IP66 seal will be voided
  • Allow 30 minutes warm-up after power-on for stable readings

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