Prior to debugging, make sure the equipment is consistently grounded, the ambient temperature is steady at 23±5°C, the humidity is below 80%, and all wire connections are secure after calibration.
As a traceability benchmark for accuracy comparison during debugging, prepare a reference process calibrator with an accuracy class ≥ ±0.01%, preheat it for 30 minutes, and utilise it.
Make a list of full-range debugging points in advance and set debugging parameters for range settings of 10%, 50%, and 100%. There is no need for on-site setups.
Step 1: Confirmation and Debugging of Calibration Parameters: Open the signal generator system settings menu, locate the calibration parameter storage interface, and verify that all conversion constants produced during calibration have been correctly written to the non-volatile memory of the device.
Restart the device gently. Check the calibration parameters again after resuming to make sure they haven't been lost and to avoid calibration effectiveness failing because of power outages.
Step 2: Full-Range Accuracy Reproduction and Debugging: Re-measure the actual output value point by point using the reference calibrator after successively configuring the signal generator output for 10%, 25%, 50%, 75%, and 100% range settings. Verify that there are no accuracy rebound issues following calibration and that the full-range output deviation stays below equipment nominal accuracy. If the deviation is more than the limit, adjust the gain correction coefficient locally until the deviation is zero again.
Particular thermal signal debugging: Verify that the temperature difference between the signal generator output temperature and the temperature displayed by the hot runner temperature control system is ≤ ±0.5°C, fully meeting the hot runner temperature control calibration requirements, by debugging the thermocouple millivolt output and RTD resistance output point by point.
Stability debugging is the third step. Run the equipment continuously for 30 minutes, gathering full-scale and zero-point output data every 10 minutes. Verify that there is no continuous offset and that the drift within 30 minutes is ≤ 0.03% of the range.
To troubleshoot signal abnormalities produced by mechanical stress, gently jiggle the equipment casing to make sure the output signal does not leap irregularly.
Debugging Hot Runner Production Line Linkages is the fourth step. Connect to the hot runner temperature control system, simulate thermal signals from 0°C to 400°C across all channels, and verify that there are no communication disruptions or signal leaps in any of the temperature control channels' responses.
To validate that the signal generator's output is stable under load and that the signal deviation is within allowable bounds after load, simulate real hot runner production under load.
Commissioning Finalisation: The equipment is prepared for official usage on the hot runner manufacturing line once all commissioning items satisfy the requirements. A commissioning record is then automatically created and stored.
Return to the full-range accuracy reproduction commissioning process, adjust the correction coefficients locally, and recheck until all indicators are within acceptable bounds if signal deviation surpasses the norm during commissioning.
Common industrial control system maintenance engineers can carry out this commissioning process on their own because it is simple and straightforward. It may drastically cut the overall commissioning time and swiftly resume production line operation while guaranteeing that commissioning accuracy completely satisfies the criteria.
