Cooling Tower Fan (Active Sensor) + Hibernation - Siemens G120P Technical Manual

7.5 Cooling tower fan (active sensor) + hibernation

● Macro 106 "Cooling tower active sensor +
hibernation"
● Control of the cooling tower fan based on the
temperature of the cooling water
● Temperature sensor 0...10 V on AI0
● Hibernation
● Flying restart and automatic restart activated
● Error message: Digital output 0
● Status display: Digital output 2
When selecting this application using macro 106, the
technological unit remains unchanged at [%]. If
necessary, adapt the unit as described in the parameter
list. Select the values depending on the used sensor.
Parameter Value
p596 100
p0010 5
p595 4
p0010 0
p756[0] 0
p0840 r722.0
p1200[0] 1
p1210 26
p2200[0] 1
p2201[0] 26 ℃
p2253[0] p2201
p2257 30s
p2258 30s
p2264[0] r755[0]
p2265 10 s
p2267 110 ℃
p2268 -10 ℃
p2293 30 s
p2306 1
p2390[0] 50 rpm
p2391[0] 60 s
p2392 1 °C
p2398 1
Siemens
Building Technologies
Description
Reference variable of the technological unit
Parameter filter change, technological unit
Selection of technological unit: °C
Parameter filter ready
Unipolar voltage input (0 V...10 V)
ON / OFF (OFF1)
Flying restart always active (start in setpoint direction)
Acknowledging all faults and restarting for an ON command
Technology controller enable
Technology controller fixed value 1
Technology controller setpoint 1
Technology controller setpoint ramp-up time
Technology controller setpoint ramp-down time
Technology controller actual value
Technology controller actual value filter time constant
Technology controller upper limit actual value
Technology controller lower limit actual value
Technology controller ramp-up/ramp-down time
Technology controller fault-signal inversion
Hibernation start speed
Hibernation delay time
Hibernation restart value with technology controller
Hibernation mode
Application examples
Cooling tower fan (active sensor) + hibernation
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2016-03-17