ABB ControlMaster CM30 - Set Point Start Condition - Current PV

ControlMaster CM30, CM50 and CMF310
Universal process controllers,
1
/4,
1
/2 DIN and fieldmount 7 Advanced Level
IM/CM/ED–EN Rev. X 63
7.6.3 Set Point Start Condition – Current PV
Selecting Current PV reduces the delay between the end of a program and the beginning of the next
program. The process variable value is used as the program start point and the set point steps up to the
process variable value. This has the effect of changing the overall segment time and maintains a constant
ramp rate.
Fig. 7.3 Current PV
Process
variable
Current process variable
inserted as program start level
Current process variable inserted
as program start level
Program
status
Seg. 1
Seg. 2
Seg. 3
Seg. 1
Seg. 2
Seg. 3
Seg. 1
Seg. 2
Seg. 3
Run
Run
Run
Start Start
Sta
Stop
Stop
Stop