KSB PumpDrive 2 - Sleep Mode Without Setpoint Increase; Energy Savings Meter; Parameters for Stand-By (Sleep) Mode

8 Commissioning/Shutdown
105 of 212
PumpDrive 2
Sleep mode without setpoint increase
This sleep mode variant is active if the value 0 is selected for the Setpoint Increase
parameter (3-9-4-2).
If the low flow limit (3-4-3-30) or stop speed (3-9-4-8) of the pump is undershot due
to minimum withdrawal over the specified period (3-9-4-3), the pump is stopped.
Pressure drops as soon as fluid is withdrawn. If the configurable limit value for the
Maximum Control Deviation for Restart (3-9-4-5) is achieved, the pump restarts.
NOTE
The parameter values and value ranges/units entered are mutually dependent. This
is why the first step in parameterising the frequency inverter is always to specify the
applicable value range and units (refer to parameter 3-11). If the value range or
unit is subsequently changed, all dependent parameters must be checked for
correctness again.
Table74: Parameters for stand-by (sleep) mode
Parameter Description Possible settings Refers to Factory setting
3-9-4-1 Sleep Mode
Sleep mode ON/OFF
▪ ON
▪ OFF
- OFF
3-9-4-2 Setpoint Increase
Pressure increase required for tank
filling
Minimum to maximum
limit of value range
- 0
3-9-4-3 Monitoring Period
Configurable monitoring period until
setpoint increase or stop
0,0…600,0 - 30,0 s
3-9-4-4 Duration of Setpoint Increase
Maximum duration of setpoint
increase. Stop is triggered if the
setpoint is reached within this
window. The duration of the
setpoint increase must exceed the
time of the ramp defined for the
increase.
0,0…600,0 - 100,0s
3-9-4-5 Permissible Deviation
Maximum permissible control
deviation for restart
Minimum to maximum
limit of value range
- 1,0bar
3-9-4-6 Minimum Runtime
Minimum period of time between
two stop attempts in sleep mode
0,0...600,0 - 60,0s
3-9-4-7 Ramp-up Time for Setpoint
Increase
Ramp-up time during which the
setpoint is increased
0,0...1000,0 - 30,0s
3-9-4-8 Stop Speed
The pump is stopped if the low flow
limit or stop speed of the pump is
undershot due to minimal
withdrawal over period 3-9-4-3.
Minimum to maximum
limit of value range
- 3-2-2-1
8.8.4.3 Energy savings meter
The energy savings meter determines the electrical energy saved by operation on a
frequency inverter. To this end, the difference between the current input power of
the pump set (1-2-1-4) and a reference power is determined and integrated over