West Control Solutions Pro-EC44 - Manual (Page 44)

Pro-EC44 2-Loop Graphical Profile Controller & Recorder
Pro-EC44 Product Manual - 59540-1 October 2013 Page 37
OPERATION MODE SCREEN SEQUENCE
All possible screens are listed below. The sequence shown depends on the configuration and status.
E.g.
settings for “Loop 2” only apply if 2nd input is fitted and configured for 2-loop control.
◘ Some screens are only shown if set to do so in Display Configuration.
After 2 minutes without key activity, the most screens revert to the Base Operating Screen. Screens
marked  do not revert automatically. They remain displayed until the user navigates away.
Calibration Check Due Warning
If a Calibration Reminder is set and the due date has passed this will be shown at every power up,
and repeated once per day. Press R to acknowledge and continue using the instrument temporarily
without recalibration. Change the due date or disable the reminder to cancel the warning.
This feature is only possible if the recorder is fitted. It is enabled in Input Configuration.
 Single Control Loop: Normal Operation
LED Indicators
LED Function Labels
Process Variable Value
Effective Actual Setpoint
Value
Engineering Units
Control Deviation Graph
(scaled ±5% of input span)
Power Graph (0-100% primary,
±100% primary & secondary)
1-LOOP OPERATION
Default LED indicator functions are PRI, SEC, TUNE & ALARM - the functions and their labels can be
altered only with the PC configuration software.
In valve motor drive mode, the power bar-graph is replaced by valve Open / Stop / Close unless the
2
nd input is used for position feedback, where it shows 0 to 100% valve position.
In manual mode the effective setpoint is replaced by the %Manual Power and the label “MAN”.
In manual mode with valve motor drive the setpoint is replaced by valve Open / Stop / Close.
If control is disabled the effective setpoint
value is replaced by “OFF”.
 Two Control Loops: Normal Operation
LED Indicators
LED Function Labels
Process Variable* & Actual
Setpoint Values*
Indicators for Alarm and
Remote Setpoint active*
Loop Description*
Control Deviation (±5% of
span) & Power Graphs*
Engineering Units*
* = in loop 1 & 2 screen area 2-LOOP OPERATION
Default LED indicator functions are PRI 1, PRI 2, TUNE & ALARM - the functions and their labels can
be altered only with the PC configuration software.
In valve motor drive mode, the power bar-graph is replaced by valve Open / Stop / Close.
In manual mode the effective setpoints are replaced by the %Manual Power
and the label “MAN”.
In manual mode with valve motor drive the setpoint is replaced by valve Open / Stop / Close.
If control is disabled the effective setpoint
value of that loop is replaced by “OFF”.