Yamatake Sdc20 User Manual Jun 2026

Proper installation is critical for safe and reliable controller operation.

Cut a square hole in your panel measuring exactly 45.0 mm x 45.0 mm (+0.6 mm tolerance).

Always refer to the specific wiring diagram printed on the side of your Yamatake SDC20 unit to confirm terminals, as models may differ. 5. Configuration and Operation

Connect control outputs (voltage pulse for SSRs, current output, or relay output) to the heating/cooling element controls. yamatake sdc20 user manual

Relay contact, voltage pulse (for SSR drive), or current output (4-20mA).

Lower limit deviation alarm (triggers if PV falls too far below SV).

The SDC20 features an automated calibration loop system to optimize Proportional (P), Integral (I), and Derivative (D) matrix factors. How to Run Auto-Tuning Proper installation is critical for safe and reliable

Dual 4-digit LED display. The upper display (green) typically shows the Process Value (PV) , while the lower display (orange) shows the Setpoint (SP) Standard 1/8 DIN size ( Navigation and Programming The controller interface consists of four primary keys:

Shows the measured Process Value or parameter names during configuration.

While many third-party sites offer scanned copies, the safest source is the website (Azbil acquired Yamatake’s automation division). Follow these steps: Lower limit deviation alarm (triggers if PV falls

Connect alarm or event outputs as required for monitoring or shutdown processes.

What are you connecting? (e.g., K-type thermocouple, Pt100 RTD)

+-----------------------------------+ | [ PV Display: Main Process Value]| | [ SV Display: Target Set Value ]| | | | (OUT1) (OUT2) (ALM1) (ALM2) (RDY)| <- Status Indicators | | | [para] [mode] [down] [up] | <- Function Keys +-----------------------------------+ Key Functions

| Category | Specification | | :--- | :--- | | | Yamatake Corporation / Azbil Corporation | | Series | DigitroniK Line | | Model | SDC20 (single-loop digital indicating controller) | | Control Method | PID control with auto-tuning capabilities | | Input Types (Universal) | Thermocouples (K, J, T, E, B, R, S, W, N, PLII), RTDs (Pt100, JPt100), DC voltage (0-10V, etc.), DC current (4-20mA) | | Control Output Options | Relay contact, voltage pulse (SSR drive), current (e.g., 4-20mA) | | Alarm Functions | 6 types: PV, SP, DEV, |DEV|, timer, sensor break | | Communications (Option) | RS-485 / RS-232C supporting Modbus-RTU and Azbil's proprietary CPL protocol | | Power Supply | 85-264 VAC, 50/60 Hz or 24 VDC±5% | | Power Consumption | 18 VA max | | Accuracy (Indication) | ±0.3% of FS ±1 digit (excluding B-type input 0-260°C range) | | Sampling Period | 500 ms | | Mounting | Panel-mounted (e.g., 48×96×115mm for SDC20) | | Weight | Approx. 500g | | Ambient Environment | 0 to 50°C, 10 to 90% RH (non-condensing) |