Navigation keys – SATEC PM180 Operation Manual User Manual

Page 29

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‎Chapter 3 Using the RDM

Data Display

PM180 Substation Automation Unit



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

Configuring the RDM

), the common

measurements display (main screen)

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

Configuring the RDM

), 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

Status Information Display

below) indicates a critical error until the error

is cleared. See

Device Diagnostic Codes

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

Resetting Device Diagnostics

), or examine what event caused the critical error

and clear the device diagnostics through HyperTerminal (see

Using HyperTerminal

)

or through PAS (see