It delivers critical uninterrupted manual control during controller module replacement. Equipped with 1–5 V DC input monitoring and 4–20 mA DC manipulated variable output, it directly drives control valve actuators without relying on the main PID controller.
Front panel dual moving-coil indicators display process variable and output value intuitively. It supports battery-powered emergency operation for around one hour, and can also draw power from the instrument housing for extended use. Smooth bumpless transfer avoids sudden valve jolts during switching.
When technicians need to pull out and replace faulty YS1700 / YS1500 controllers, the YS110-001 connects via dedicated cable to take over the 4–20mA control signal. Operators can steadily adjust valve position via front rotary wheel.
Bumpless balance function guarantees seamless switchover to prevent process fluctuation. Compact portable structure allows flexible use among multiple control cabinets.
