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BMU Draft Control Option - Enabling Servo Type Output

FILED UNDER: BMU, PI Catalog

Symptom

Customer was unable to select "FloatingServo" option in the Draft Setup menu of the BMU. (P4.1.1)

BMU was in Standby, Commission Mode = Enabled, and password level was Engineer.

Steps to Troubleshoot

Be sure servo setup is complete (Function = Draft Damper, Zero Cal, Seek Limits) and there are no errors reported at the servo. Password level should be Engineer and BMU should be in Standby.

 

 

Resolution

Make your Start Limits and get to the point of "Servo Check". This is an internal rule check, which allows the BMU to "learn" the servo setup data. Open your Start Limits.

"FloatingServo" option can now be selected in Draft Setup menu.

Note: The above scenario applies to other parameters with Servo outputs as well; Feedwater, Atmizing, Etc.