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Page 49
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Appendix A1
A540-55-880 Issue D
Appendix A1
Pump display terminal
The PDT accessory provides pump on/off and status reporting. Warnings and alarms are also indicated to the user.
Up to two PDTs may be fitted to the pump.
Figure A1 - Pump display terminal
A1.1
LEDs
Local Control
Green illuminates continuously when this PDT has control of the pump.
Pump ON
Green (within the Pump Start button) illuminates to indicate that the pump is running.
Warning
Yellow illuminates to indicate that a pump warning is present. It flashes when a new warning
occurs until it is acknowledged by pressing 'ENTER' when it goes continuous until the warning clears.
Alarm
Red illuminates to indicate that a pump alarm is present. It flashes when a new alarm occurs
until it is acknowledged by pressing 'ENTER' when it goes continuous until the alarm clears.
A1.2
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:
Table A1 - Pump start control
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
