SOP For IWCU
This article is created from HTPC Training handbook reference(2023)
Saurav Das
Last Update a year ago
SOP for Integrated WC Unit.
- Ensure that IWCU is in its initial state and no cylinder is present between Cylinder Present Sensor and Main Line Jamming Sensor.
- Turn “ON” the selector switch of weight correction unit.
- As the cylinder will pass through the Cylinder Present Sensor, Entry stopper gets engaged and after preset delay exit stopper also gets engaged. Entry Stopper will remain engage until Next Cycle starts.
- If Cylinder present remains high for preset time then cylinder will be lifted and clamped and exit stopper will open.
- “Tare Weight” will be shown in Tare Weight Display section in HMI (section-1). And Gross Weight also will be shown in Gross Weight Display Section. Now, according to the internal calculation of IWCU, corrective operation will be started and same will be shown in Multi State Indicator –3.a. If the cylinder is Undefiled/Underweight, filling process will start. First, Coarse filling will start and after achieving the Predefined Gross Weight (set by operator/user), Fine Filling will start. Fine Filling will be continued until target Gross Weight of cylinder is achieved. b. If the Cylinder is over filled then evacuation process will start and continue until the Gross Weight decreased to a Pre-defined Gross Weight set by user/Operator. After this Fine Filling will start to achieve The Target Gross Weight. c. If the cylinder is in the Tolerance Limit (set by operator/user) then cylinder will be automatically passed through the IWCU machine.
- During Correction Process, we can use “Pause” button to pause the current operation and to resume the operation we have to press the “Pause” Button again.
- During Corrective Operation, for any emergency we can use “Emergency” Push Button. For first pressing of Emergency Push Button, Cylinder will be de-clamped and Gun will go in up position. For second pressing of Emergency Push Button Lifting Table will be down to release the cylinder on conveyor.
- To bypass the Current Operation/Current Cycle/Current Cylinder,operator can press Bypass Push Button and next cycle will start.
