ABB ControlMaster CM30 User Manual page 56

ControlMaster CM30, CM50 and CMF310
Universal process controllers,
...Control / ...Loop 1 (2) Control
Loop 1 (2) Output
Limits
Limit Action
Low Limit
High Limit
Failure Actions
Power Recovery
Last Mode
Man – Last
Man – 0 %
Man – 100 %
Man – Default
Auto Mode
Auto – Last
Timed – Last
Timed – Default
Recovery Time
PV Fail Action
No Action
Man – Hold O/P
Man – Default O/P
Default Output
54
1 1
/ , / DIN and fieldmount
4 2
Used to set the output limits, tracking rates, slew rates and output action on power failure or
process variable failure.
When used with split output the limits restrict the PID algorithm output (see page 30) before
the split output range values are calculated.
Selects when the output limits should be applied (Off, Auto + Manual, Auto Only).
Set minimum controller output in %.
Set maximum controller output in %.
Used to select the default power failure mode required following a power interruption or
failure.
The last Power Recovery mode selected.
Manual control mode using the last output before power failure.
Manual control mode with output set to 0 %.
Manual control mode with output set to 100 %.
Manual control mode with output set to default value.
Auto control mode with integral term reset.
Auto control mode with integral term restored to its last value before the power failure.
If the power outage is < recovery time, the control mode before power down is selected.
If the power outage is > recovery time, Manual control mode (Man – Last) is selected using
the last output before the power failure.
If the power outage is < recovery time, the control mode before power down is selected.
If the power outage is > recovery time, Manual control mode (Man – Last) is selected using
the default output value.
Set time in seconds for use with Timed power recovery.
Determines the controller output when the process variable input fails.
No action is taken if the process variable input fails.
Puts the controller into Manual control mode and holds the output at its value immediately
prior to the PV failure.
Puts the controller into Manual control mode and sets the output to the default output value.
This parameter is used in conjunction with Power Recovery (see page 54) and PV Fail Action
settings (see above). For split output this value refers to the PID algorithm (see page 30)
before the split range values are calculated.
7 Advanced Level
IM/CM/ED–EN Rev. X