ABB ControlMaster CM10 User Manual page 71

ControlMaster CM10, CM30 and CM50
Universal process controllers,
Adjustable ramp rates
Adjustable holdback hysteresis
1. for Ramp segments
2. for Soak segments
Set point
Start
Process
Fig. 7.2 Ramp Types
Note. Ramping segments can have a different hysteresis to soak segments.
IM/CM/S–EN Rev. R
1 1 1
/ , / and /
8 4 2
Skip forward
Manual pause
Holdback active
outside hysteresis
limits
Seg. 2
Seg. 1
DIN
Hysteresis applied Hi-Lo
(above and below the set point)
Seg. 4
Seg. 3
7 Advanced Level
Hysteresis applied Hi
(above the set point)
End of profile (revert to
local set point or repeat
of profile)
Seg. 5
Time (hours or minutes)
69