N2 - Common Outputs - Metasys - LIT-12011829 - Field Device - VMA18 VAV Modular Assembly

N2 VMA Application Note

Brand
Metasys
Product name
VMA18 VAV Modular Assembly
Document type
Application Note
Document number
LIT-12011829
Revision date
2018-11-01
Language
English

This module is responsible for translating the VAV controllers' Cooling Control status into Inadequate Cooling, the Heating Control status into Inadequate Heating, the Damper Control Status into Starved Box, and the Autocalibration Status into Autocal Active. These are used by the N2 VMA14xx Series Controllers.

This module is typically placed in the Output Control column.

You can view and modify the modules in this group's logic.

Figure 1. N2 - Common Outputs

Table 1 describes the attributes used by the N2 - Common Outputs module:

Table 1. N2 - Common Outputs
Name Type Description Default Value
Inadequate Cooling V Indicates that the VAV box is providing the maximum cooling it is capable of providing

Inadequate Heating V Indicates that the VAV box is providing the maximum heat it is capable of providing

Starved Box V Indicates that the VAV box has the damper fully open and is unable to reach the flow setpoint

Autocal Active V Indicates when the VAV box controller is calibrating the velocity pressure input

Cooling Control Status

The current control status of the Flow Setpoint reset module Normal Set Name: Control Status
Heating Control Status

The current control status of the last heating module to operate Normal Set Name: Control Status
Damper Control Status

The current control status of the flow control module Normal Set Name: Control Status
Autocalibration Status

The current Autocalibration status of the controller Uncalibrated Set Name: Autocalibration
Note: C - Configuration Mode Only, G - Default Element (Generated State, if applicable), SC - Simulation and Commissioning Modes Only, V - Calculated Value (Outputs)