Okuma 4174/1174 alarm: MCS servo link error

Okuma OSP detects MCS/servo system serial link discrepancy or error. It is an alarm from the Servo / ejes area, and in the catalog it is listed as “MCS servo link error”. On the machine you notice it like this: Alarm when starting, The axes do not become ready, May show an MCS link message.

On the shop floor it almost always comes from one of these causes: Cableado servo link, Drive/drive with incorrect ID address, Fuente inestable, Loose connection. Rule out the most likely one on your machine first, before touching parameters or swapping anything.

Reset after correcting connection/configuration by technician. Resetting without fixing the cause first only hides the problem: Okuma 4174/1174 trips again and, in the meantime, you keep working with the machine in bad shape.

With the machine stopped and in a safe state, start with these checks: Write down complete number, Check for drive alarms, Do not touch energised wiring. That alone will tell you whether it is the program or whether you need to raise a maintenance job.

With Okuma 4174/1174 active, avoid this: Do not bypass safety devices, Do not manipulate energized electrical cabinet, Do not continue producing if the alarm reappears. Skipping any of these points is what turns a minor stop into an expensive breakdown.

Always, if the MCS link does not come up. If you are not sure how far it goes, stop the machine and report it: a repeat alarm always works out cheaper than a crash.

It is critical: there is a real risk of damage to the machine, the tool or a person. Leave the machine stopped, do not keep resetting it to see if it goes away, and call maintenance before producing again. Guidance reference. Always confirm the full text in the exact machine/control manual.