08/08/2025
WAGO ERROR ALARM OF WARTSILA EGCS WATER MONITORING (INLET)
Encountering an error alarm on a WAGO I/O-based system that's monitoring the water inlet of a Wärtsilä EGCS (Exhaust Gas Cleaning System).
❗️1. Identify the WAGO Alarm Code
WAGO PLC modules typically indicate errors through flashing LEDs. The I/O LED may blink in sequences—first quickly, then in slower bursts—representing error code and error argument.
To interpret the alarm:
Observe the blinking pattern on the I/O LED.
Refer to your WAGO module’s manual to decode the error and locate the affected section of the I/O chain.
If LEDs are steady red or off, it may imply deeper hardware issues.
❗️2. Understand the EGCS Water-Inlet Monitor Context
The EGCS system involves continuous monitoring of seawater supply (flow, pressure, temperature) to scrubbers. A threshold breach or malfunction in these sensors can trigger alarms.
For instance, the EGCS monitors sets such as:
Flow meters (FM001),
Supply pressure (PT001),
Supply temperature (TT001).
An alarm may trip if any reading goes out of accepted range, or if the sensor communication fails.
❗️3. Combine Diagnostics From Both Systems
To troubleshoot the issue holistically:
1. Note the WAGO error code—this will help pinpoint whether it’s a communication fault, I/O module failure, or cabling issue.
2. Check the EGCS water inlet monitor:
Are the flow, pressure, or temperature readings abnormal?
Is a specific sensor (e.g., PT001, FM001, or TT001) showing faults?
3. Check connections:
Sensor wiring from EGCS to the WAGO module.
Power supply to sensors and modules.
4. Reset and test:
Clear the WAGO error (if possible) and observe again.
Inspect for repeat alarm and isolate the trigger point.
Summary of Steps
Step Action
1 Decode the WAGO error from I/O LED pattern and check manual for meaning.
2 Correlate with the EGCS water inlet parameters—flow, pressure, temperature—and see what might be off.
3 Inspect wiring, module health, and sensor integrity—replace or reroute as needed.
4 Test and confirm system
