Such a phenomenon is easy to occur if the capacity is too small. Adjusting the switch position to increase the capacity can solve the switch tripping phenomenon. Check the control power cable of the color group disc valve, whether there is a short circuit, or the circuit board is burnt out, etc., the disc valve should be replaced in time. How to eliminate the interference of the communication cable of the man-machine interface After the start-up and test run, the communication cable of the whole machine is interfered. After the main circuit switch of the inverter is closed, the interference is increased and the debugging cannot be performed. The main reason is that there is a partitioned plastic layer between the aluminum film of the touch screen communication cable and the outer shielding network, which makes the poor contact between the aluminum film and the shield, resulting in poor communication cable grounding and no shielding effect.
The correct connection method is to remove the aluminum film in the inner layer after stripping the cable, and complete the contact and connect the shielding net in the middle with the ground of the bus connector. How to quickly adjust the motor synchronization (generally collecting and unloading), the mechanical and electronic parameters of the shaft are the same. When synchronizing, the first synchronous adjustment is made with any axis. When the main unit is started, the unwinding and unwinding traction roller and the motor jitter. And the amplitude is loud and loud. At this time, pay attention to check the gear gap of the encoder swing roller potentiometer of the drive motor, and adjust the value parameter in the internal value of the traction inverter to eliminate it.
What should be done when the horizontal automatic tracking accelerates the vertical tracking (over the set temperature) When the set value is set, the operator will be warned to check the temperature. The main reason is that the horizontal automatic tracking response is too fast, and the vertical tracking cannot be stabilized quickly when accelerating. If the line calibration, frequency conversion parameter inspection, and power-on inspection are all normal, the horizontal tracking value needs to be adjusted down. When the speed reaches the three-color registration, there is a problem. When the automatic registration cannot be performed, it may be the photoelectric head of the three-color registration to the relay. The optical cable of the box is inserted reversely at the head of the relay box, resulting in the inability to properly track the overprint and run the version.
It can solve the problem of long alarm time for unwinding and cutting. In the printing process, if the alarm time is too long, it will increase waste and cause waste. The main reason is that the swing speed of the swing roll is too large due to the different linear speeds of the new roll and the old roll. Re-calibrate the diameter detection potentiometer to open the diameter detection surface at the man-machine interface, adjust the diameter detection coefficient and re-preparing the material until the accurate reel diameter is detected in the interface to synchronize the speed of the new reel and the old reel, the alarm can be shortened Loss of time waste is greatly reduced.
How to solve the problem that the gap of the gear of the longitudinal running potentiometer is too large to eliminate the gear gap. Adjust the tension pulley to solve the problem of excessive belt looseness. Increase the over-temperature alarm device to use electrically heated gravure printing machine. Long-term heating will cause the contactor contact welding to die, which may cause the oven temperature to run out of control, over temperature, or even fire.
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