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Siemens
Standard application AHU
CE1P3977en_02
Building Technologies
HMI
01.02.2010
17.14 Fan control
17.14.1 General
Main Index > Unit > Fan Control
Parameter
Function
Value range
Unit
Standard R
S Link
Supply fan
Actual Status; Jumpline Supply Fan settings Off…Stage3
6
Exhaust fan
Actual Status; Jumpline Exhaust fan
settings
Off…Stage3
6
Actual step
Actual Fan Step; Stage Setpoint if Fan
control mode >= fixed Speed
Off…Stage3
6
Fire mode
Define the behavior of the Fans in case of a
Fire alarm
Stop.
RunSply
RunExh
Run
Stop.
6
Fire setpoint
Setpoint for the Fans in case of a Fire alarm 0…100
%
80.0
6
Slave offset
Offset for the slave (Fan control mode =
SupplySlv or ExhaustSlv)
-999…999
%
0
6
Slave start up stpt
If Fan control mode = Exhaust Slv
Start Setpoint for Exhaust fan until Supply
Fan is running
0…9999
%
100
6
Rundown time el htg OverRun Time for Fans if any El Heating is
selected
0…36000
--- S ---
180
6
Min stage time
Min Stage Time
0…999
--- S ---
10
6
Section:
Coasting Time
Time for the Fan if switch down no Output is
setted
0…99
--- S ---
5
6
5.4.1
Disable high speed
Temperature Setpoint for High Speed
blocking
If Outside Temperature is lower than this
Value High Speed is blocked at Stage 1
(Setpoint Stage1)
-64…64
°C
-40.0
6
Disable fan comp
Disable any up compensation from the Fan
None = up compensation allowed in Stage1
and 2
Stage1 = up compensation allowed in
Stage2, Stage1 blocked
Stage2 = up compensation in
Stage1 and Stage2 blocked
None
Stage1
Stage2
None
6
Summer comp
Actual Value; Jumpline for Summer
compensation settings
-100…100
%
0
6
Winter comp
Actual Value; Jumpline for Winter
compensation settings
-100…100
%
0
6
Op hours settings
Jumpline for Opertation Hour settings for
Alarming
0
6
17.14.2 Supply fan
Main Index > Unit > Fan Control > Supply Fan
Parameter
Function
Value range
Unit
Standard R
S Link
Actual value
Supply Fan Actual Value
0…100
%
X
Controller
Actual Value Controller; Jumpline to settings 0…100
%
X
Output signal
Actual Output Signal; Jumpline to settings 0…100
%
X
Command
Actual Stage; Jumpline to settings
Off…St3
X
Section:
Feedback
Feed back of Supply Fan
Ok…alarm
6
5.4.3
Alarm
Supply Fan alarm
OK…alarm
6
Alarm
Fan alarm if combined Fan
OK…alarm
6
Setpoints/Settings
Actual Value; Jumpline to Supply Fan
Setpoints and settings
6
17.14.3 Supply fan settings
Main Index > Unit > Fan Control > Supply Fan > Setpoints/Settings
Parameter
Function
Value range
Unit
Standard R
S Link
Actual step
Supply Fan Actual Stage
Off…St3
X
Act supply stpt
Actual Setpoint
0…100
%
X
Stage 1
Output for Stage 1 if Fan control mode is
FixedSpeed, Pressure, Flow or ExhaustSlv
0…100
%
l/s
Pa
40%
6
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
Page 195