DP Pumps Hydro-Unit Premium Line F, Installation & Operating Manual

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Parameter Description
3-4-2-4 Max power. This parameter defines the maximum number of pumps allowed to run at the same time. Input is in
number of pumps x 100 %.
3-4-3 Variable freq. drive.
3-4-3-1 Communication. Configuration of communication protocol used by control unit and frequency inverter.
3-4-3-2 Proportional const. Proportional amplification factor of controller. The higher the value, the higher the
amplification.
3-4-3-3 Integral time. Integration time of controller. The higher the value, the faster the controller.
3-4-3-4 Differential const. Not used in pressure boosting applications.
3-4-3-5 No-flow detection. Parameters determining the pressure booster system's stopping behaviour at zero flow.
3-4-3-5-1 No-flow bandwidth. Permissible deviation of actual value from setpoint (settable from 2 to 18 %) interpreted as
constant pressure at zero flow by the control unit.
3-4-3-5-2 No-flow time. Period (settable from 4 to 20 s) during which the deviation set under 3-4-3-5-1 must be valid for
the control unit to identify zero flow.
3-4-3-5-3 No-flow step. Value must not be changed for pressure booster systems!
3-4-4 WSD settings. Only the temperature monitoring function is supported at the moment.
3-4-4-3 Average room temp. A warning is output if this temperature is exceeded.
3-5 Pressure configuration
3-5-1 "Customer" level. Set point. Pressure at which the pumps start.
3-5-3
"Customer" level.
Bandwidth. Value in bar (standard: 0.05 bar) of permissible deviation of actual value from
setpoint.
3-5-4 "Customer" level. Accumulation press. Value added to the actual value before the last pump is stopped.
3-5-5
"Service" level.
Max. set point.
3-5-6 "Service" level. Hmax. Maximum pump head at zero flow.
3-5-8 "Service" level. Average inlet press. This parameter indicates the inlet pressure of the system if a pressure
switch is used as dry running protection device.
3-5-9 "Customer" level. Adapt. setpoint. Activated under 3-7-8 "Clock adapt setp."
3-5-10 Delta p. This parameter defines by how many bar the setpoint is increased or decreased per running pump.
For difficult site conditions only.
3-5-11 "Customer" level. High pressure alarm. This parameter defines the maximum pressure at which a warning is to
be output.
3-5-12 "Customer" level. High pressure action. This parameter defines the control unit's response when the pressure
set under 3-5-11 is reached. Selection options: "Stop pumps" or "Message only".
3-5-13 "Customer" level. Low pressure alarm. This parameter defines the minimum pressure at which a warning is to
be output.
3-5-14 "Service" level. Low pressure action. This parameter defines the control unit's response when the pressure set
under 3-5-13 is reached. Selection options: "Stop pumps" or "Message only".
3-5-15 "Service" level. Shut down RDP. Can only be selected when a pressure sensor has been selected as dry
running protection. This parameter defines the pressure at which a lack-of-water message is to be output.
3-5-16 "Service" level. Reset RDP. Can only be selected when a pressure sensor has been selected as dry running
protection. This parameter defines the pressure at which the lack of water has gone.
3-5-17 "Service" level. Press. Flow Control. Can only be selected if flow monitoring has been selected for dry running
protection. Lack of water is detected when the flow sensor detects zero flow and the pressure on the discharge
side falls below the setpoint minus the value entered here.
3-6 Timer settings
All parameters can be changed at "Service" level .
3-6-1 Opt. pump starts/h. Permissible pump starts per hour.
3-6-2 Min. run time. Minimum run time of the pump, even if the period between the start and stop command is
shorter.
3-6-3 Min. run time corr. Value added to the minimum run time if the number of pump starts is exceeded.
3-6-4 Max. run time. Period after which the pumps will be changed over in any case.
3-6-5 Start delay. Time between the start command and the actual pump start.
3-6-6 Stop delay. Time between the stop command and the actual pump stop.
3-6-8 RDP delay. Time between lack-of-water signal and pump stop.
3-6-9 High/low alarm delay. Time between the occurrence of a fault and the associated warning/alert.
3-7 Time/Date
All parameters except 3-7-7 and 3-7-11 can be changed at "Customer" level .