138 Control macros
Example of a 3-pump constant pressure water supply application:
Pump 1 - connected to Motor 1
Pump 2 - connected to Motor 2
Pump 3 - connected to Motor 3
Flow consumption versus pump status
Consumption
Pump 1
Pump 2
Pump 3
Low
VSD
Off
Off
Normal
DOL
VSD
Off
Off
DOL
VSD
↓
VSD
DOL
Off
Normal
DOL
VSD
Off
VSD
Variable Speed Drive (yellow colour connecting line in the figure).
Controlled by drive, tuning the output speed according to PID control.
DOL
Direct On Line (red colour connecting line in the figure). Pump is running
at fixed motor nominal speed.
Off
Off-line. Pump stops.
Содержание ACS560
Страница 1: ...ABB GENERAL PURPOSE DRIVES ACS560 standard control program Firmware manual...
Страница 4: ...4...
Страница 30: ...30 Start up control with I O and ID run...
Страница 32: ...32 Using the control panel...
Страница 100: ...100 Program features...
Страница 153: ...Control macros 153...
Страница 160: ...160...
Страница 374: ...374 Parameters...
Страница 408: ...408 Additional parameter data...
Страница 466: ...466 Fieldbus control through the embedded fieldbus interface EFB...
Страница 504: ...504 Control chain diagrams...
Страница 508: ...508 Parameterization with drive composer...
Страница 512: ...512 Parameterization with automation builder drive manager...