BAC_AC_SuAFan_FC_01

Application

The call template BAC_AC_SuAFan_FC_01 is used for controlling a pressure-controlled supply air fan.

The main tasks of the template are:

Interface

BAC_AC_SuAFan_FC_01 1:

Plant diagram 01

BAC_AC_SuAFan_FC_01 2:

Plant diagram 02

BAC_AC_SuAFan_FC_01 3:

Block diagram

BAC_AC_SuAFan_FC_01 4:

VAR_INPUT

udiPltStp      : UDINT;
udiOpMod       : UDINT;

udiPltStp: Plant start sequence steps. The plant steps are generated in the system start program BAC_AC_StartT_01.

udiOpMod: Plant operation mode. The plant operation mode is determined in the mode selection programBAC_AC_OpMod_01.

Program description

Instance

Type

Task

PrssAir

BAC_AI_02

Subtemplate pressure sensor PrssAiris the control value for the pressure regulator PID.

PID

BAC_PID_02

Subtemplate pressure control. The control is analog via PID controller

DiffPrssMonit

BAC_DiffPrssMonit_01

Subtemplate differential pressure monitoring via differential pressure switch

FU

BAC_Uni_FC_01_223

Template control of a frequency converter, including motor logic.

OpModSfty

FB_BA_MMUX_B04

The multiplexer defines the safety priority for the control of the supply air fan FU, based on the plant operation mode udiOpMod

udiOpMod

Enable

OPMOD_AC_SMEXTTPRG

Smoke extraction program

TRUE

OPMOD_AC_SMEXTTSUA

Smoke extraction supply air

TRUE

OPMOD_AC_SMEXTTEXHA

Smoke extraction exhaust air

FALSE

OPMOD_AC_FIRE

Fire

FALSE

OpModDst

FB_BA_MMUX_B08

The multiplexer defines the fault priority for the control of the supply air fan FU, based on the plant operation mode udiOpMod

udiOpMod

Enable

OPMOD_AC_FORCVENT

Forced ventilation

TRUE

OPMOD_AC_EMERG

emergency

FALSE

OPMOD_AC_FRST

Frost

FALSE

OPMOD_AC_CENTSWIOFF

Central shutdown

FALSE

OPMOD_AC_ALM

Fault/alarm

FALSE

 

>=, AND

Network containing the enable for the supply air fan as result, based on the plant steps udiPltStp

 

SEL

SEL selection, which specifies the value for the safety priority of the template FU

 

OR

The result of the OR operation is the enable of the disturbance priority of template FU.

Version history

Version number

Comments

1.0.1

First release