On Delay Timer Function - Metasys - LIT-12011964 - Software Application - System Configuration Tool - 13.2

Metasys SCT: System Configuration Tool Help

Brand
Metasys
Product name
System Configuration Tool
Document type
User Guide
Document number
LIT-12011964
Version
13.2
Revision date
2020-01-21
Language
English

The following table and figures illustrate the function of the On Delay timer.

Table 1. On Delay Timer Function

Feature

Description

Activation

Goes inactive in a low to high Input transition, depending on the state of the input during the duration period. If the Input returns to a low state (inactive), the timing cycle is canceled and the Output remains inactive. If the Input remains in a high state, the Output goes to the high state at the next execution of logic.

In a high to low Input transition, the Output becomes inactive the next time the logic executes (logic executes every 5 seconds).

Output

See row above.

Reset

Cancels timer activity and makes the output inactive. If the Reset goes from active to inactive, the timer re-evaluates the Input at the next low to high transition.

Example

Delays the supply fan start 20 seconds after the return fan starts.

Figure 1. On Delay Timer Example 1

Figure 2. On Delay Timer Example 2