In daily production on Komori press series, electrical control faults are among the most common issues encountered by press operators and maintenance personnel. These Japanese-built machines are known for their stability, with mature H-UV drying and automatic registration systems, and even ink distribution across the inking train. If not addressed promptly, the impact can range from reduced registration accuracy and print quality to extended downtime in severe cases.
I. Typical fault symptoms: control console alarms, main shaft failing to start, one or more printing units unresponsive, PLC/inverter error codes, or servo timeouts.
II. Common Q&A
Q1: What is the most frequent cause of electrical control faults?
A: The main causes are oxidized contacts on PLC input/output modules or blown fuses; inverter or servo drive overheating, or parameter loss.
Q2: What precautions should be taken when working on a Komori?
A: Work must be carried out in conjunction with the PQC Print Quality Control system / KMS console, following standard procedures.
Q3: How can recurring faults be avoided?
A: Regularly blow out dust and tighten terminals.
III. Troubleshooting procedure: Read PLC/inverter fault codes and locate the faulty module; check power supply and fuses, replace damaged I/O points; clean encoders and proximity switches, re-zero as required; reinforce grounding and shielding to eliminate interference sources. The above methods also apply to models such as the LS440, LS629, Lithrone, GL840, and G40. For hands-on work, always refer to the PQC Print Quality Control system / KMS console and on-site conditions. For complex situations, it is recommended to contact professional maintenance support via the printm.cn platform.
