Control With One Frequency Inverter Per Pump (Synchronous Operation Of Pumps), Multiple Pump Operation - KSB BoosterControl Advanced Installation & Operating Manual

Parameter Description
3-4-2-4 Limitation of the maximum system load
3-4-3-5 Enable/disable flow detection and
accuracy of flow detection
3-4-3-5-1 Activate flow detection: Flow bandwidth
3-4-3-5-2 Interval for flow measurement ("0" deactivates the
function)
3-4-3-5-3 Step height for detecting the zero flow
3-4-3-4-4 Define maximum pump load ("0" deactivates the
function)
3-5-1 System pressure setpoint
3-5-3 Pressure bandwidth: range above and below the
setpoint where pumps are not stopped or started.
Permissible symmetrical deviation from the setpoint.
3-5-5 Maximum setpoint
3-6-4 Maximum pump runtime. After this period,
BoosterControl Advanced starts the pump with the
least operating hours
3-6-5 When one pump is running: start delay of each
pump that cuts in
3-6-6 When more than one pump is running: stop delay of
the pumps
8)
Depending on the frequency inverter used (Hyamat VP with PumpDrive, HyaEco VP with Danfoss MicroDrive)
9)
x depends on the maximum value of the pressure sensor used.
42 of 88
8 Commissioning/Start-up/Shutdown
8.4.5 Control with one frequency inverter per pump (synchronous operation of
pumps), multiple pump operation
After the first frequency inverter-controlled pump is started and has reached
100 percent, the next pump is started. In the process, the pump already running is
reduced in output to avoid pressure surges. The next pump with the least operating
hours is started until all pumps have the same output.
Then both pumps continue to run synchronously at the same speed and in parallel
until the next switching limit is reached and the next pump is started or stopped.
During the switching procedure, the remaining pumps are adapted in their output.
BoosterControl Advanced
Possible values
Number of pumps in operation × ª100
%
0 deactivated
1.. Measuring interval = 20 s
Permissible load change = ±2 %
...9 Measuring interval = 4 s
Permissible load change = ±18 %
0-0,5 bar
0-60 s
1..100%
0.100%
8)9)
0 ... x kPa
0 ... 1000 kPa
8)9)
0 ... x kPa
0 ... 356400 s
0 ... 999 s
0 ... 999 s