YOKOGAWA YS150-012/A06
Product Introduction:
The YS150-012/A06 is a legacy-generation single-loop PID controller from Yokogawa’s YS150 series. It is a compact 1/16 DIN controller designed for basic ON/OFF and PID control applications. The 012 in the model number indicates: 0 = relay output / 1 = alarm output count / 2 = input type variant. The /A06 suffix specifies the faceplate and configuration. The YS150 is a cost-effective solution for simple temperature and process control.
Detailed content
Technical Specifications:
- Controller Type: Single-loop ON/OFF or PID controller
- Input Type: RTD (Pt100, JPt100) / DC Current 4–20mA / DC Voltage 1–5V (limited compared to YS1700/YS1500)
- Control Output: Relay output (1 SPDT, 250 VAC / 3 A resistive)
- Alarm Output: 1 alarm output (SPDT relay, 250 VAC / 3 A)
- Display: 4-digit 7-segment LED (PV) + 4-digit LED (SV)
- Control Modes: ON/OFF (with hysteresis), PID
- Scan Rate: 1 second (1.0 sec)
- Power Supply: 100–240 VAC, 50/60 Hz / 24 VDC
- Power Consumption: Maximum 4 VA
- Operating Temperature: 0 to +50 °C (32 to 122 °F)
- Protection Rating: Front panel IP54 (when properly gasketed)
- Dimensions: 48 mm (W) × 48 mm (H) × 82 mm (D) (1/16 DIN: 45 × 45 mm cutout)
- Weight: Approximately 0.15 kg
Functional Features:
- 2-control ON/OFF with adjustable deadband
- PID control with auto-tuning (relay method)
- Setpoint ramp (soft start)
- Output limiter (upper and lower limits configurable)
- Manual output for valve/actuator testing
- Heating/Cooling control (H/C mode)
Performance Parameters:
- Control Accuracy (ON/OFF): ±1.0% of F.S. ±1 digit
- Control Accuracy (PID): ±1.0% of F.S. ±1 digit
- Alarm Accuracy: ±1.0% of F.S.
- Relay Life: 100,000 operations (mechanical) / 300,000 operations (electrical at rated load)
Structural Features:
- Housing: ABS resin, snap-on front bezel
- Terminal Block: Screw terminal, wire size 0.5–2.0 mm² (AWG 20–14)
- Mounting: 1/16 DIN panel clip or DIN rail
Applicable Industries:
- Small OEM Machines — Injection molding, small furnaces
- Building Automation — Room temperature control
- Agriculture — Greenhouse climate control
- Small Process Plants — Simple tank level/temperature control
Installation Requirements:
- Panel cutout: 45 mm × 45 mm
- Use 3-wire RTD configuration for Pt100 inputs
- For 4–20mA inputs, ensure loop power supply voltage ≥ 18 VDC
- Keep input wiring away from power cables (minimum 100 mm separation)
Precautions:
- Do not use for safety-critical (SIL) applications — this is a basic controller
- Maximum load on relay: 3 A resistive, 1.5 A inductive at 250 VAC
- Do not exceed 125 VDC or 250 VAC across relay contacts
- Replace controller if front panel display becomes unreadable (indicates internal degradation)












