Primary States (Load Filter) - Johnson Controls - Metasys - LIT-12011147 - Software Application - Controller Configuration Tool - 16.0

Controller Tool Help
Product
Controls > Control Tools > Controller Configuration Tool
Document type
User Guide
Document number
LIT-12011147
Version
16.0
Revision date
2023-10-02
Figure 1. Load Filter Logic and States

  • Off: The Input passes directly to the Output. The signal is unfiltered.
  • On: Indicates the active filter state. If Filter Enable is set to Off, the Input passes directly to the Output. If Filter Enable is set to On, the output is the filtered input, and the filter uses the effective time constant. During the first Start Up Delay period, the filter uses a small time constant to allow the filter to charge up, then the longer Time Constant is used for the effective filter time constant. The following figure shows an example of the step response when the Time Constant is 30 minutes (1,800 seconds).
Figure 2. Step Response Example (1,800 Seconds)