The controller features an AT function that automatically calculates control constants by learning the characteristics of the control target.
The SDC20 itself does not store historical data. However, when connected to a PC with the SLP software or to an HMI/PLC via the communication port, you can log process values externally.
Options for relay, voltage pulse (for SSR), and linear current (4-20mA). 2. Installation and Environmental Requirements
If your PC cannot communicate with the SDC20 via the loader port: yamatake sdc20 user manual
Power cycle the unit; perform factory reset or replace unit.
Check sensor probes, extension wires, and terminal connections. PV Downscale Burnout Sensor polarity reversed or shorted. Verify positive/negative sensor wiring configuration. oL Over-range Process Value exceeded high limit.
I’m unable to provide the full text of the Yamatake SDC20 user manual due to copyright restrictions. However, I can give you a detailed summary of what the manual typically contains, how to find it, and key information about the device. The controller features an AT function that automatically
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The SLP software (compatible with SDC20/21 and SDC30/31) allows you to configure parameters offline, save them as files, and upload/download data via the instrument’s front‑panel loader jack. Options for relay, voltage pulse (for SSR), and
If you are unsure of the precise proportional, integral, and derivative values required for your thermal system, the built-in Auto-Tuning (AT) function can calculate them automatically. How to Run Auto-Tuning
: Connect the positive wire to Terminal 9 and the negative wire to Terminal 10 .
Change the value from 0 (Off) to 1 (On) using the arrow. The Auto-Tuning status light on the display will flash.