Application examples
8200SHB019915-2
Exercise for FIG 15-1:
A centrifugal pump is used to ensure constant pressure in a pipeline system
(e.g. for water supply of residential and industrial premises).
Theapplicationdoesnotonlyrequireremotecontrolfrom acentraloperatingpanel
but also setting possibilities at site. The pressure is to be reduced to a fixed value
during times when only few water is required. Thus, indirectly possible burst pipes
can be detected by monitoring the actual pressure.
Functions used
- Internal PID controller for pressure control
- Regular control, setpoint selection via fieldbus with feedback via analog
channel terminal 8.
- Networking via fieldbus (e.g. via plug-in module 2102)
- Manual/remote changeover (H/Re)
- Setpoint selection change via key ( E1 = DOWN / E2 = UP)
- Process setpoint selection (e.g. pressure [p]) via inverter JOG value
- Electrical controller inhibit (ctrl. enable)
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