ControlMaster CM10, CM30 and CM50
Universal process controllers,
1
/
8
,
1
/
4
and
1
/
2
DIN
6 Basic Level
28
IM/CM/S–EN Rev. R
…Basic / …Loop 1 Setpoints
Ramp Mode
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.
Ramp Rate
Sets the ramp rate required in engineering units / hour.
Note
. Applicable only if
Ramp Mode
is
On
.
Loop 1 Control
On/Off Hysteresis
Sets the hysteresis value in engineering units.
Note
. Applicable only if Control Type is On/Off – see page 55.
0
100
200
PV
300
Displayed local setpoint value
Time
Actual (ramping) setpoint value used by
PID algorithm*
*Example: Ramp Rate = 200 Increments/hr
1 Hour
PV
PV
ON
OFF
Reverse Acting Control Output
Setpoint
Hysteresis
Value
Hysteresis
Value
Setpoint
Direct Acting Control Output
ON
OFF