Figure 4-5 Pid Control Mode - ABB ACS1000i User Manual

Figure 4–5 PID control mode
1) Reference value
2) Level transducer
Application examples:
– Booster pumps of municipal water supply systems
– Automatic level control of water reservoirs
– Booster pumps of district heating systems
– Speed control of different types of material handling systems where the material flow
has to be regulated.
– Sequential control mode: used in processes that require different constant speed
settings and/or different acceleration and/or deceleration settings in addition to an
adjustable speed reference value.
Up to seven constant speed settings and two acceleration and/or deceleration settings
are possible. The selection of the different settings can be automated by a process
control system or can be made manually by selector switches that are connected to the
corresponding digital inputs of the drive.
The preset values of a control mode can be left unchanged or they can be set individually by
the commissioning engineer as required for the application. For more information on
control mode settings, see "Appendix G – Signal and parameter table".
PRODUCT
ACS1000i
1
4
DOCUMENT KIND
User manual
3 2
3) Actual value
4) Pump
DOCUMENT ID.
3BHS206977 E01
CONTROL SYSTEM
REV. LANG. PAGE
J en 52/146