I. Initial Hardware and Parameter Assessment
Link Status Check: Confirm that all synchronization trigger lines are securely connected without loose connections, and that the power-on sequence of the master and slave signal sources conforms to the "master first, slave second" standard, with no wiring errors or incorrect power-on timing.
Parameter Consistency Verification: Confirm that the master channel clock source is set to internal, and the slave channel clock source is uniformly set to external. All channel trigger logic and BURST parameter configurations are completely consistent, with no single-channel parameter misalignment.
II. Visual Waveform Assessment
Use a dual-channel or higher oscilloscope to simultaneously acquire the output waveforms of the master channel and any slave channel. If the rising edges of the two square/sine waves are perfectly aligned without significant misalignment, the synchronization is preliminarily determined to be normal.
Track through all slave channels one by one and compare the waveforms with the master channel to confirm that there is no significant timing shift in the waveforms of all channels.
III. Quantization Deviation Assessment
Use the oscilloscope's time measurement function to read the phase time difference between any two channel output signals. If the synchronization deviation is ≤0.01s, the multi-channel synchronization accuracy is determined to be up to standard.
If the deviation exceeds this threshold, synchronization is considered lost, and the channel delay parameters need to be readjusted to correct the deviation.
IV. Stability Reassessment
Run the multi-channel synchronous output continuously for 30 minutes, collecting synchronization deviation data every 5 minutes. Confirm that there is no loss of synchronization over time, indicating stable long-term synchronization.
After powering off and restarting all equipment, verify again that the synchronization deviation remains within the acceptable range. This indicates that the synchronization status is stable and will not fail upon equipment restart.
This assessment method is fully adaptable to hot runner industrial field operation and maintenance scenarios. It is simple and efficient to operate, and can quickly and accurately confirm whether the multi-channel synchronization status meets the standards.
