Alarms
057-295 ISSUE: 1
Page 46 of 60
6 ALARMS
Activation of the following alarms disable the AVR excitation and flash the Status LED accordingly.
For further information, see the section entitled
Status LED
elsewhere in this document.
6.1 START-UP TRIP
During start-up, the main generator output is monitored. If it fails to reach 70% of the
Voltage Set
Point
, the
Startup Trip
alarm occurs.
6.2 LOSS OF FEEDBACK
NOTE: Loss of Feedback Delay is configured using DSE Configuration Suite PC Software.
For further details, refer to DSE Publication: 057-271 DSEA109 Configuration Suite PC
Software Manual.
During normal running operation the main generator output is monitored. If this drops below 5% of the
Voltage Set Point
for the duration of the
Loss of Feedback Delay
time, the
Loss of Feedback
alarm
occurs.
6.3 OVER EXCITATION
NOTE: Over Excitation trip level is configured using DSE Configuration Suite PC Software.
For further details, refer to DSE Publication: 057-271 DSEA109 Configuration Suite PC
Software Manual.
The excitation of the alternator is monitored and an alarm triggered when the excitation level exceeds
the adjustable trip point. This inhibits further excitation of the alternator.
6.4 UNDER FREQUENCY
NOTE: Under Frequency trip level is configured using DSE Configuration Suite PC
Software. For further details, refer to DSE Publication: 057-271 DSEA109 Configuration Suite
PC Software Manual.
Indicates that the alternator output has fallen below the setting of the
Under Frequency
alarm. This
inhibits further excitation of the alternator.
6.5 POTENTIOMETER FAULT
NOTE: External Potentiometer Open Circuit Fault is configured using DSE Configuration
Suite PC Software. For further details, refer to DSE Publication: 057-271 DSEA109
Configuration Suite PC Software Manual.
Indicates that the potentiometer connected to terminals P1 and P2 has become open circuit.
