ABB ControlMaster CM10 User Manual page 31

ControlMaster CM10, CM30 and CM50
Universal process controllers,
...Basic / ...Loop 1 Setpoints
Ramp Mode
Ramp Rate
Loop 1 Control
On / Off Hysteresis
IM/CM/B–EN Rev. H
1 1 1
/ , / and / DIN
8 4 2
The ramping setpoint facility can be used to
prevent a large disturbance to the control
output when the setpoint value is changed.
The rate set applies to both the local and the
remote setpoints.
Sets the ramp rate required in engineering units / hour.
Note. Applicable only if Ramp Mode is On.
Sets the hysteresis value in engineering units.
PV
ON
OFF
Reverse Acting Control Output
Note. Applicable only if Control Type is On / Off – see page 53.
PV
300
200
100
0
*Example: Ramp Rate = 200 Increments / hr
PV
Setpoint
Hysteresis
Value
ON
OFF
Direct Acting Control Output
6 Basic Level
Displayed Local Setpoint Value
Actual
(Ramping) Setpoint Value
used by PID Algorithm*
Time
1 Hour
Hysteresis
Value
Setpoint
29