I. Hardware Link Synchronization Check
Wiring Consistency Check: Confirm that all synchronization trigger wires are of identical length and specifications, that there are no loose connections or oxidation at the BNC terminals, and that there is no signal attenuation at the output port of the synchronization distributor.
Power-On Sequence Backtracking Check: Confirm that the power-on sequence of the master signal source first and the slave signal sources second conforms to the specifications, that the master clock source is set to internal mode, and that all slave clock sources are locked to external follower mode.
II. Trigger Parameter Consistency Check
Trigger Logic Verification: Confirm that the master channel trigger source is "manual" and the trigger output is "rising edge," that all slave channel trigger sources are "external," and that the trigger input is "rising edge," and that the trigger logic of all channels is completely consistent.
BURST Parameter Verification: Confirm that the BURST function of all channels is set to "infinite" mode, and that there are no premature start-up issues caused by inconsistent single-channel parameter configurations.
III. Quantitative Synchronization Deviation Verification
Oscilloscope Waveform Comparison: Simultaneously acquire the output signals of any two channels using a dual-channel or higher oscilloscope. Directly read the time phase difference between the two signals to confirm that the synchronization deviation is ≤0.01s.
Full Channel Traversal Verification: Sequentially switch the oscilloscope probe to all channels and compare the waveforms of each channel with the main channel signal to confirm that the synchronization deviation of all slave channels and the main channel is controlled within the allowable range.
IV. Long-Term Synchronization Stability Verification
Continuous Operation Test: Run the multi-channel synchronous output state continuously for 30 minutes, acquiring synchronization deviation data every 5 minutes to confirm that there is no loss of synchronization due to time drift.
Parameter Power-Off Restart Verification: Restart all signal generators to confirm that the equipment automatically loads the fixed synchronization parameters. After restarting, the synchronization deviation remains within the acceptable range, and there are no synchronization failures caused by parameter loss.
This inspection process is fully adaptable to the operation and maintenance scenarios of hot runner industrial sites, and can quickly and accurately determine whether the multi-channel synchronization status meets the standards, avoiding channel verification result deviations caused by hidden loss of synchronization.
