Otis · DSD 412 Elevator System
This fault causes an automatic drive shutdown when speed errors exceed the threshold defined by Function #100 for a duration longer than specified by Function #99 (Speed Error Trip Time).
Click steps to track your progress.
Verify the setting of Function #99 (Speed Error Trip Time) and adjust if the system response time is longer than configured.
Verify the setting of Function #100 (Speed Error Trip Threshold) and adjust if the allowable speed deviation is different.
Investigate the root cause of speed errors, such as mechanical load changes or feedback issues.