KONGSBERG RCU500 Controller Manual

Clean the dust at the air inlet.

Confirm the ventilation and heat dissipation capacity of the cabinet, and add forced cooling if necessary.

7.3 Hot replacement operation steps

In a redundant system, replace the faulty RCU500:

Confirm that the other RCU500 is in main mode and the system is operating normally.

Pull out the power terminal, communication cable, and I/O cable of the faulty RCU500 in sequence (pay attention to marking the cable positions).

Release the DIN rail buckle and remove the faulty unit.

Install the new RCU500 and insert it into the DIN rail.

Reconnect the power, communication, and I/O cables.

After power on, the new unit should automatically start, synchronize with the main unit, and then enter standby mode.

Confirm in the operation station that the new unit is in normal condition and there are no error reports.

7.4 Regular maintenance recommendations

Check the cleanliness and noise of the cooling fan every six months.

Perform a live self check once a year (triggering BIST through the operation station).

Check if all screw terminals are loose (especially power and grounding).

If there is a lot of dust in the environment, the circuit board should be cleaned with compressed air under power-off conditions (pay attention to ESD protection).

Regularly export/backup configuration files and logs from RCU500's Flash.

Compatibility and upgrade with old models

As the successor product of RCU400H and SBC500, RCU500 provides higher processing speed and more communication interfaces. When upgrading from an old model:

The application binary can run directly without recompiling.

The old model of SPBus and RIO 400 I/O remain compatible.

Please note that some specialized interfaces used by the old model (such as VME bus or special PCI cards) are not available on RCU500 and need to be migrated to the new interface solution.

The power consumption of the RCU400H has slightly increased (usually below 15W), ensuring sufficient margin of the original power supply.

For new systems, it is recommended to directly use RCU500 for longer lifecycle support and richer interfaces.