14/1/98
Page 6
Issue H
5. Front panel
The front panel of the
MPR 3E5
comprises the following operation and indication elements:
•
Alphanumeric display (4 Digits)
•
5 push buttons for setting and other operations
•
20 LEDs for measured value indication and
setting
5.1 Alphanumeric Display
The measured and set values, and recorded fault data, are shown alphanumerically on the display.
The meaning of the displayed values is easily interpreted from the LED indicators on the front panel.
Because of the large adjustment possibilities the data on the MPR3E5 is split into a number of
related groups
Mode 1 Display.
This shows the analogue values being read by the Relay. It is accessible by
pressing the <SELECT/RESET> Button. It then cycles through the analogue values.
Mode 2 Setting.
This shows the parameters that have been set on the relay. This is accessed
when the correct password is entered when "
P&B
" is displayed on the screen. Then to cycle through
the setting parameters press the <SELECT/RESET> button.
Fault Indication.
This indicates the current fault on the relay. When the relay trips a
Mnemonic appears on the 4 digit display, indicating the current fault.
