Manual 37351A
MFR 11 Packages - Protection Relay
Page 20/59
© Woodward
Chapter 5.
Display and Operating Elements
The pressure-sensitive membrane of the front panel consists of a plastic coating. All keys have been designed as
touch-sensitive membrane switch elements. The display is an LC-display, consisting of 2 rows of 16 characters
each, with indirect green lighting. The contrast of the display can be infinitely adjusted via a rotary potentiometer
positioned on the right side of the control. The configuration plug is located on the right side of the unit as well.
Please connect the direct configuration cable there (DPC).
MFR 1
[ ]
L2 / L23
L1 / L12
L3 / L31
Hz
Reversible Display
Operating
Display
Menu
Digit
Cursor
Clear
Alarm
Converting, Controlling, Monitoring
Select
14
1/2
13
12
4
3
5
7
6
Figure 5-1: Front panel
Brief Description of LEDs and Push Buttons
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LEDs
No. Description
Function
1
"Wye"
Indication of the wye (star) voltages
2
"Delta"
Indication of the delta voltages
3
"Operating"
Automatic
mode
4
"Alarm"
Alarm
occurred
Push Buttons
No. Description
Function
12
Display
↓
Advance to next screen
12
Select
Confirm selection
13
Menu
Select
menu
13
Digit
↑
Increase the digit
14
Clear
Acknowledgement of alarm messages
14
Cursor
→
Move cursor one position to the right
Miscellaneous
No. Description
Function
5
LC Display
LC Display
6
Potentiometer
Adjust LCD contrast
7
DPC plug
Configuration plug
