Manual 37140A
MFR 11 - Protection Relay
Page 28/80
© Woodward
Display in Automatic Mode (Second Line of the Display: Alarm Indication)
NOTE
The user may scroll through the alarm messages that have occurred with the "Menu" button.
----------------
00.00 yyyyyyyyyy
Display in automatic mode, second line: Alarm indication
Alarm messages are shown on the bottom line of the unit display. Table 5-1 con-
tains a list of all alarm messages that the control may monitor for depending on
how the unit is configured.
Alarm type
Alarm text
Overvoltage, level 1
Option U
Overvolt.1
Overvoltage, level 2
Option U
Overvolt.2
Undervoltage, level 1
Option U
Und.volt.1
Undervoltage, level 2
Option U
Und.volt.2
Asymmetry
Option U
Asymmetry
Overfrequency, level 1
Option U
Overfreq.1
Overfrequency, level 2
Option U
Overfreq.2
Underfrequency, level 1
Option U
Und.freq.1
Underfrequency, level 2
Option U
Und.freq.2
Vector/phase shift
Option V
Ph. shift
df/dt (ROCOF)
Option D
Fault df
Table 5-1: Alarm messages