Description

IT94-3 HESG440310R2 ABB Модуль

By switching the actuator several times, the indicated position of the potentiometer is mechanically set. By switching the actuator once, the zero position and range setting values are determined. By switching the actuator once and stopping at multiple positions, the time used for one stroke is checked, and the threshold value for adjusting speed is set accordingly. The actuator is adjusted to the middle position and moved back and forth for several shorter strokes, This optimizes the dead zone value under current application conditions.
After successfully completing the above steps, the locator switches to “operating mode” and is in a ready state. At this point, the mA signal can be disconnected and reconnected. After reconnecting the mA signal, it can be used directly without further initialization. 3. The original F40 positioner has poor performance, short lifespan, aging internal rubber sealing ring, poor control output linearity, and common air leakage and cross flow phenomena inside the air chamber. The control output air hole is also small, which is easy to block, causing unstable control output air source and inflexible actuator action, often causing the damper to lose control, causing the adjusted working condition to exceed the allowable range, and affecting the safe operation of the unit. 4. Positioner replacement technology: Dismantle the original F40 locator, process the ABB locator and the existing cylinder connection adapter, assemble the ABB locator and adapter, install the ABB locator on the cylinder, re connect and wire the pipeline, power on the ABB locator, position the opening position of the air damper baffle by the maintenance department, conduct individual debugging, system joint debugging, and finally debug to meet the working requirements.

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