M588-00-880 Issue E
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Appendix A2
A2.2 Pump start / stop and control
To start or stop the pump the PDT must be in control, indicated by the local control LED being illuminated.
To take or release control briefly press CONTROL.
If something else is in control, error message 'Control locked' appears, refer to ‘Control Holder’ in the status menu.
Press Start button PDT displays:
Press Stop button PDT displays:
A2.3 Event / warning / alarm display and acknowledgement
Each new event / warning / alarm is displayed when it occurs, overwriting any text already present unless another
unacknowledged event /warning / alarm is currently being displayed. The corresponding warning / alarm LED flashes
to indicate a new event /warning / alarm.
Pressing ENTER acknowledges the event /warning / alarm currently displayed and the warning / alarm LED stops
flashing. If available the display will show the suggested action, press ENTER again to clear.
If there is another new event /warning or alarm the warning / alarm LED will continue to flash and this is then
displayed, otherwise the display will revert to the original text from before the alarm(s) / warning(s) / event(s)
occurred.
If there are warnings / alarms still present, but they are all acknowledged, then the corresponding LED remains
continuously illuminated. The text indicating acknowledged warning / alarm conditions still present may be viewed
in the Status menu, refer to status menu contents in Appendix A2.4.2. Some alarms such as 1.01 STOP ACTIVATED
remain present until the pump is manually started from the PDT or front panel controls.
Once all warning/alarm conditions have gone away, then the corresponding LED is extinguished.
To avoid a build up of out of date Warnings they are automatically acknowledged after 36 hours.
Table A1 - PDT displays
Pump state Local control LED PDT display Operator Pump response
Stopped On START MENU
Start Pump
Press ENTER to con-
firm
Pump starts
Running On Pump Running
Press CANCEL
Press CANCEL No change (running)
Stopped or Running Off No PDT Control
Press CANCEL
Press CANCEL No change
Table A2 - PDT displays
Pump state Local control LED PDT display Operator Pump response
Stopped On PUMP Stopped
Press CANCEL
Press CANCEL No change (stopped)
Running On STOP MENU
Auto Shutdown
If Fast Shutdown is
required press down
arrow. Press ENTER
to confirm
Pump Stops
Stopped or Running Off No PDT Control
Press CANCEL
Press CANCEL No change
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