ABB IM300-I Operational Manual page 29

of over voltage .
'190.0V' indicates primary side return value of the over voltage alarm.
'60.0' indicates that the over voltage alarm delay time is 60 seconds.
Note: the over voltage alarm allows the default value to be not allowed; The default
value of the correlation relay is not associated; The default value is 260V. The default
value of the return value is 220V; The default value for delay time is 1800s.
Screen 17：Lower frequency alarm parameters
The word "w-lf" is displayed on the top of the screen to
indicate the lower frequency alarm parameters.
When the lower frequency is not allowed, the screen is
shown in fig. 3-2-40: 'OFF' indicates that the lower frequency
is not allowed.
When the lower frequency alarm is allowed,
the screen is shown as shown in fig. 3-2-40:
The "1" indicates that the lower frequency
alarm correlation relay 1.
The '47.00Hz' indicates that the primary side
limit value of lower frequency alarm.
'49.50Hz' indicates primary side return value
of lower frequency alarm.
The '60.0' indicates that the lower frequency of the alarm
delay time is 60s.
Note: the lower frequency alarm allows the default value to be not allowed; The
default value of the correlation relay is not associated; The default value is 45.0Hz; The
default value of the return value is 46.0Hz; The default value for delay time is 1800s.
Screen 18：Over frequency alarm parameters.
The "w-of" is displayed above the screen to indicate the
frequency OF the alarm parameters.
When the over-frequency alarm is not allowed, the
screen display is shown in fig. 3-2-41: 'OFF' indicates that
IM300 Intelligent Power Monitoring Instrument
27
Fig. 3-2-40 Lower frequency alarm
parameters.