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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
Stage1 +Stage2 = up compensation in
Stage1 and Stage2 blocked
None
Stage1
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
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