Navigation keys – SATEC PM180 Operation Manual User Manual
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Chapter 3 Using the RDM
Data Display
PM180 Substation Automation Unit
27
When wiring via PT is used, the PT ratio up to and including
4.0, voltages are displayed in volts, and power in whole
kilowatts.
For the PT ratio above 4.0, voltages are displayed in kilovolts,
and power in megawatts with three decimal places.
Currents are displayed in amperes with two decimal places.
Primary and Secondary Volts
Volts are displayed in primary (default) or secondary units. Change the volts display
mode through the Display Setup Menu (see Configuring the RDM).
Auto Scroll
With Auto Scroll option enabled (see
), the common
measurements display (main screen)
s
crolls automatically after 30 seconds of
uninterrupted use.
To stop auto scrolling, press either arrow key.
Auto Return to the Main Screen
With Auto Return option enabled (see
), the display
automatically returns to the main screen from any other measurement screen after
30 seconds of uninterrupted use.
Simple Reset of Accumulated Data
When changing data via the communications is not password protected, you can
reset the Min/Max registers, maximum demands and energies from the display mode
without entering the reset menu.
Diagnostics Display
If a critical error occurs in the PM180, the RDM stops updating the display and shows
a diagnostic message “Critic Error”. The diagnostic page in the Status Information
display (see
below) indicates a critical error until the error
in Appendix F for the list of diagnostic
events that cause a critical error.
Clear the device diagnostics error via the RDM from the Status Information display
(see
), or examine what event caused the critical error
and clear the device diagnostics through HyperTerminal (see
Viewing and Clearing Device Diagnostics
Navigation Keys
The RDM navigation keys are used as follows:
MIN/MAX
MIN/MAX - Selects the Min/Max and Max. Demand Display
PQ
PQ - Selects the Power Quality - FLICKER or Total Harmonics Display
ENERGY
ENERGY - Selects the Energy Display
DOWN ARROW
DOWN ARROW - Scrolls forwards through the pages
UP ARROW
UP ARROW - Scrolls backwards through the pages
diAG
Error
Critic