Operating Instructions

Application examples
Temperature-dependent pressure setpoint
7
91 |
118
Siemens
A5E36496664A_f
Smart Infrastructure 2021-10-11
7.10 Temperature-dependent pressure setpoint
● Macro 113 "Temperature-dependent pressure
setpoint"
● Pressure control setpoint dependent on outside
temperature and limited between 20% and 50%
● LG-Ni1000 temperature sensor on AI2
● Pressure sensor 0...10 V on AI0
● Flying restart and automatic restart activated
● Error message: Digital output 0
● Status display: Digital output 2
Parameter Value Description
p756[2] 6 AI2: LG-Ni1000 temperature sensor
p757[2] -20
℃
AI2 characteristic x1
p758[2] 20 % AI2 characteristic y1
p759[2] 5 °C AI2 characteristic x2
p760[2] 50 % AI2 characteristic y2
p840[0] r722.0 ON / OFF (OFF1)
p1200[0] 1 Flying restart always active (start in setpoint direction)
p1210 26 Acknowledging all faults and restarting for an ON command
p2200[0] 1 Technology controller enable
p2253[0] r20231 Technology controller setpoint
p2257 30 s Technology controller setpoint ramp-up time
p2258 30 s Technology controller setpoint ramp-down time
p2264[0] r755[0] Technology controller actual value from AI0
p2265 10 s Technology controller actual value filter time constant
p2267 120 % Technology controller upper limit actual value
p2268 -10 % Technology controller lower limit actual value
p2293 30 s Technology controller ramp-up/ramp-down time
p20228 r755[2] Setpoint limiting
p20229 0.5 Upper limit setpoint limiting 50%
p20230 0.2 Lower limit setpoint limiting 20%
p20234 5 Runtime group setpoint limiting
Outside
Temperature [°C]
Pressure
Setpoint [%]
+ 5°C- 20°C
20 %
50 %