KSB Delta Primo F, Инструкция по установке и эксплуатации

Страница: 37 / 80

7 Operation
37 of 80
KSB Delta Primo
1983.811/02-EN
7.9 Functions
7.9.1 Filling the accumulator
The energy-saving mode prevents the pump sets from starting if only a very small
amount of water (e.g. caused by leakage) is required. The required fluid can be
supplied from the accumulator (discharge-side accumulator).
(
ð Section 7.8.2, Page 36)
ü
Logged in at Service level.
1. Select parameter 3-5-4 (charging accumulator).
2. Accumulator filling (setting setpoint).
3. Select parameter 3-11-4 (time Direct OFF).
4. Set the time period the pump is to keep on running in order to fill the
accumulator before stopping.
ð
The accumulator is being filled.
5. Set the setpoint to 0.
ð The function is disabled.
7.9.2 Setting flow detection
When one pump set is operated, the control unit checks the quantity of the fluid
handled.
The pump set’s speed is slightly lowered within a configurable time interval. If the
actual value is within the bandwidth, the control unit triggers the filling of the
accumulator and stops the pump set.
Setting the time interval
ü Logged in at Service level.
1. Call up parameter 3-4-3-5-2 (time flow rate).
2. Set time [seconds].
Setting the bandwidth
ü Logged in at Service level.
1. Call up parameter 3-4-3-5-1 (bandwidth flow rate).
2. Set the setpoint [%].
7.9.3 Setting Delta P (dynamic pressure compensation function)
The dynamic pressure compensation function is a dynamic flow rate-dependent set
value re-adjustment. The system responds to decreasing flow rates by automatically
increasing the set value to compensate the pressure losses in the piping.
Activating Delta P
ü
Logged in at Customer level.
1. Select parameter 3-5-10 (Delta Pdynamic pressure compensation).
2. Set setpoint.
7.9.4 Remote ON/OFF
The remote ON/OFF connection is an NC contact. When this contact is open, all
pumps in operation switch off in succession after a configurable stop delay. A
warning message is output (yellow LED). When this contact is closed, the pump sets
start up again in line with demand. The warning message is cleared.