Pump Pressure Control - Siemens G120P Technical Manual

Application examples
7

Pump pressure control

7.2 Pump pressure control
● Macro 103 "Pump pressure control"
● Differential pressure regulated by integrated PID
controller
● Flying restart and automatic restart activated
● Error message: Digital output 0
● Status display: Digital output 2
When selecting this application using macro 103, 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 4
p0010 5
p595 3
p0010 0
p756[0] 0
p0840 r722.0
p1200[0] 1
p1210 26
p2200[0] 1
p2201[0] 2 bar
p2253[0] p2201
p2257 30s
p2258 30s
p2264[0] r755[0]
p2265 10 s
p2267 4.2 bar
p2268 -1 bar
p2293 30 s
68 | 98
Siemens
Building Technologies
Description
Reference variable of the technological unit
Parameter filter change, technological unit
Selection of technological unit: bar
Parameter filter ready
Unipolar voltage input (0...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
Set the pressure setpoint to suit the application. This example uses a 0 to 4 bar sensor (e.g. QBE64).
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
A5E36496664A_d
2016-03-17